mirror of https://git.ffmpeg.org/ffmpeg.git
4403 lines
149 KiB
C
4403 lines
149 KiB
C
/*
|
|
* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
|
|
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* @file h264.c
|
|
* H.264 / AVC / MPEG4 part10 codec.
|
|
* @author Michael Niedermayer <michaelni@gmx.at>
|
|
*/
|
|
|
|
#include "common.h"
|
|
#include "dsputil.h"
|
|
#include "avcodec.h"
|
|
#include "mpegvideo.h"
|
|
#include "h264data.h"
|
|
#include "golomb.h"
|
|
|
|
#undef NDEBUG
|
|
#include <assert.h>
|
|
|
|
#define interlaced_dct interlaced_dct_is_a_bad_name
|
|
#define mb_intra mb_intra_isnt_initalized_see_mb_type
|
|
|
|
#define LUMA_DC_BLOCK_INDEX 25
|
|
#define CHROMA_DC_BLOCK_INDEX 26
|
|
|
|
#define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8
|
|
#define COEFF_TOKEN_VLC_BITS 8
|
|
#define TOTAL_ZEROS_VLC_BITS 9
|
|
#define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3
|
|
#define RUN_VLC_BITS 3
|
|
#define RUN7_VLC_BITS 6
|
|
|
|
#define MAX_SPS_COUNT 32
|
|
#define MAX_PPS_COUNT 256
|
|
|
|
#define MAX_MMCO_COUNT 66
|
|
|
|
/**
|
|
* Sequence parameter set
|
|
*/
|
|
typedef struct SPS{
|
|
|
|
int profile_idc;
|
|
int level_idc;
|
|
int multiple_slice_groups; ///< more_than_one_slice_group_allowed_flag
|
|
int arbitrary_slice_order; ///< arbitrary_slice_order_allowed_flag
|
|
int redundant_slices; ///< redundant_slices_allowed_flag
|
|
int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
|
|
int poc_type; ///< pic_order_cnt_type
|
|
int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
|
|
int delta_pic_order_always_zero_flag;
|
|
int offset_for_non_ref_pic;
|
|
int offset_for_top_to_bottom_field;
|
|
int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
|
|
int ref_frame_count; ///< num_ref_frames
|
|
int required_frame_num_update_behaviour_flag;
|
|
int mb_width; ///< frame_width_in_mbs_minus1 + 1
|
|
int mb_height; ///< frame_height_in_mbs_minus1 + 1
|
|
int frame_mbs_only_flag;
|
|
int mb_aff; ///<mb_adaptive_frame_field_flag
|
|
int direct_8x8_inference_flag;
|
|
int vui_parameters_present_flag;
|
|
int sar_width;
|
|
int sar_height;
|
|
short offset_for_ref_frame[256]; //FIXME dyn aloc?
|
|
}SPS;
|
|
|
|
/**
|
|
* Picture parameter set
|
|
*/
|
|
typedef struct PPS{
|
|
int sps_id;
|
|
int cabac; ///< entropy_coding_mode_flag
|
|
int pic_order_present; ///< pic_order_present_flag
|
|
int slice_group_count; ///< num_slice_groups_minus1 + 1
|
|
int mb_slice_group_map_type;
|
|
int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
|
|
int weighted_pred; ///< weighted_pred_flag
|
|
int weighted_bipred_idc;
|
|
int init_qp; ///< pic_init_qp_minus26 + 26
|
|
int init_qs; ///< pic_init_qs_minus26 + 26
|
|
int chroma_qp_index_offset;
|
|
int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
|
|
int constrained_intra_pred; ///< constrained_intra_pred_flag
|
|
int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
|
|
int crop; ///< frame_cropping_flag
|
|
int crop_left; ///< frame_cropping_rect_left_offset
|
|
int crop_right; ///< frame_cropping_rect_right_offset
|
|
int crop_top; ///< frame_cropping_rect_top_offset
|
|
int crop_bottom; ///< frame_cropping_rect_bottom_offset
|
|
}PPS;
|
|
|
|
/**
|
|
* Memory management control operation opcode.
|
|
*/
|
|
typedef enum MMCOOpcode{
|
|
MMCO_END=0,
|
|
MMCO_SHORT2UNUSED,
|
|
MMCO_LONG2UNUSED,
|
|
MMCO_SHORT2LONG,
|
|
MMCO_SET_MAX_LONG,
|
|
MMCO_RESET,
|
|
MMCO_LONG,
|
|
} MMCOOpcode;
|
|
|
|
/**
|
|
* Memory management control operation.
|
|
*/
|
|
typedef struct MMCO{
|
|
MMCOOpcode opcode;
|
|
int short_frame_num;
|
|
int long_index;
|
|
} MMCO;
|
|
|
|
/**
|
|
* H264Context
|
|
*/
|
|
typedef struct H264Context{
|
|
MpegEncContext s;
|
|
int nal_ref_idc;
|
|
int nal_unit_type;
|
|
#define NAL_SLICE 1
|
|
#define NAL_DPA 2
|
|
#define NAL_DPB 3
|
|
#define NAL_DPC 4
|
|
#define NAL_IDR_SLICE 5
|
|
#define NAL_SEI 6
|
|
#define NAL_SPS 7
|
|
#define NAL_PPS 8
|
|
#define NAL_PICTURE_DELIMITER 9
|
|
#define NAL_FILTER_DATA 10
|
|
uint8_t *rbsp_buffer;
|
|
int rbsp_buffer_size;
|
|
|
|
int mb_stride; ///< stride of some mb tables
|
|
|
|
int chroma_qp; //QPc
|
|
|
|
int prev_mb_skiped; //FIXME remove (IMHO not used)
|
|
|
|
//prediction stuff
|
|
int chroma_pred_mode;
|
|
int intra16x16_pred_mode;
|
|
|
|
int8_t intra4x4_pred_mode_cache[5*8];
|
|
int8_t (*intra4x4_pred_mode)[8];
|
|
void (*pred4x4 [9+3])(uint8_t *src, uint8_t *topright, int stride);//FIXME move to dsp?
|
|
void (*pred8x8 [4+3])(uint8_t *src, int stride);
|
|
void (*pred16x16[4+3])(uint8_t *src, int stride);
|
|
unsigned int topleft_samples_available;
|
|
unsigned int top_samples_available;
|
|
unsigned int topright_samples_available;
|
|
unsigned int left_samples_available;
|
|
|
|
/**
|
|
* non zero coeff count cache.
|
|
* is 64 if not available.
|
|
*/
|
|
uint8_t non_zero_count_cache[6*8];
|
|
uint8_t (*non_zero_count)[16];
|
|
|
|
/**
|
|
* Motion vector cache.
|
|
*/
|
|
int16_t mv_cache[2][5*8][2];
|
|
int8_t ref_cache[2][5*8];
|
|
#define LIST_NOT_USED -1 //FIXME rename?
|
|
#define PART_NOT_AVAILABLE -2
|
|
|
|
/**
|
|
* is 1 if the specific list MV&references are set to 0,0,-2.
|
|
*/
|
|
int mv_cache_clean[2];
|
|
|
|
int block_offset[16+8];
|
|
int chroma_subblock_offset[16]; //FIXME remove
|
|
|
|
uint16_t *mb2b_xy; //FIXME are these 4 a good idea?
|
|
uint16_t *mb2b8_xy;
|
|
int b_stride;
|
|
int b8_stride;
|
|
|
|
SPS sps_buffer[MAX_SPS_COUNT];
|
|
SPS sps; ///< current sps
|
|
|
|
PPS pps_buffer[MAX_PPS_COUNT];
|
|
/**
|
|
* current pps
|
|
*/
|
|
PPS pps; //FIXME move tp Picture perhaps? (->no) do we need that?
|
|
|
|
int slice_num;
|
|
uint8_t *slice_table_base;
|
|
uint8_t *slice_table; ///< slice_table_base + mb_stride + 1
|
|
int slice_type;
|
|
int slice_type_fixed;
|
|
|
|
//interlacing specific flags
|
|
int mb_field_decoding_flag;
|
|
|
|
int sub_mb_type[4];
|
|
|
|
//POC stuff
|
|
int poc_lsb;
|
|
int poc_msb;
|
|
int delta_poc_bottom;
|
|
int delta_poc[2];
|
|
int frame_num;
|
|
int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0
|
|
int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0
|
|
int frame_num_offset; ///< for POC type 2
|
|
int prev_frame_num_offset; ///< for POC type 2
|
|
int prev_frame_num; ///< frame_num of the last pic for POC type 1/2
|
|
|
|
/**
|
|
* frame_num for frames or 2*frame_num for field pics.
|
|
*/
|
|
int curr_pic_num;
|
|
|
|
/**
|
|
* max_frame_num or 2*max_frame_num for field pics.
|
|
*/
|
|
int max_pic_num;
|
|
|
|
//Weighted pred stuff
|
|
int luma_log2_weight_denom;
|
|
int chroma_log2_weight_denom;
|
|
int luma_weight[2][16];
|
|
int luma_offset[2][16];
|
|
int chroma_weight[2][16][2];
|
|
int chroma_offset[2][16][2];
|
|
|
|
//deblock
|
|
int disable_deblocking_filter_idc;
|
|
int slice_alpha_c0_offset_div2;
|
|
int slice_beta_offset_div2;
|
|
|
|
int redundant_pic_count;
|
|
|
|
int direct_spatial_mv_pred;
|
|
|
|
/**
|
|
* num_ref_idx_l0/1_active_minus1 + 1
|
|
*/
|
|
int ref_count[2];// FIXME split for AFF
|
|
Picture *short_ref[16];
|
|
Picture *long_ref[16];
|
|
Picture default_ref_list[2][32];
|
|
Picture ref_list[2][32]; //FIXME size?
|
|
Picture field_ref_list[2][32]; //FIXME size?
|
|
|
|
/**
|
|
* memory management control operations buffer.
|
|
*/
|
|
MMCO mmco[MAX_MMCO_COUNT];
|
|
int mmco_index;
|
|
|
|
int long_ref_count; ///< number of actual long term references
|
|
int short_ref_count; ///< number of actual short term references
|
|
|
|
//data partitioning
|
|
GetBitContext intra_gb;
|
|
GetBitContext inter_gb;
|
|
GetBitContext *intra_gb_ptr;
|
|
GetBitContext *inter_gb_ptr;
|
|
|
|
DCTELEM mb[16*24] __align8;
|
|
}H264Context;
|
|
|
|
static VLC coeff_token_vlc[4];
|
|
static VLC chroma_dc_coeff_token_vlc;
|
|
|
|
static VLC total_zeros_vlc[15];
|
|
static VLC chroma_dc_total_zeros_vlc[3];
|
|
|
|
static VLC run_vlc[6];
|
|
static VLC run7_vlc;
|
|
|
|
/**
|
|
* fill a rectangle.
|
|
* @param h height of the recatangle, should be a constant
|
|
* @param w width of the recatangle, should be a constant
|
|
* @param size the size of val (1 or 4), should be a constant
|
|
*/
|
|
static inline void fill_rectangle(void *p, int w, int h, int stride, uint32_t val, int size){ //FIXME ensure this IS inlined
|
|
assert(size==1 || size==4);
|
|
|
|
w *= size;
|
|
stride *= size;
|
|
|
|
//FIXME check what gcc generates for 64 bit on x86 and possible write a 32 bit ver of it
|
|
if(w==2 && h==2){
|
|
*(uint16_t*)(p + 0)=
|
|
*(uint16_t*)(p + stride)= size==4 ? val : val*0x0101;
|
|
}else if(w==2 && h==4){
|
|
*(uint16_t*)(p + 0*stride)=
|
|
*(uint16_t*)(p + 1*stride)=
|
|
*(uint16_t*)(p + 2*stride)=
|
|
*(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101;
|
|
}else if(w==4 && h==2){
|
|
*(uint32_t*)(p + 0*stride)=
|
|
*(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101;
|
|
}else if(w==4 && h==4){
|
|
*(uint32_t*)(p + 0*stride)=
|
|
*(uint32_t*)(p + 1*stride)=
|
|
*(uint32_t*)(p + 2*stride)=
|
|
*(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101;
|
|
}else if(w==8 && h==1){
|
|
*(uint32_t*)(p + 0)=
|
|
*(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101;
|
|
}else if(w==8 && h==2){
|
|
*(uint32_t*)(p + 0 + 0*stride)=
|
|
*(uint32_t*)(p + 4 + 0*stride)=
|
|
*(uint32_t*)(p + 0 + 1*stride)=
|
|
*(uint32_t*)(p + 4 + 1*stride)= size==4 ? val : val*0x01010101;
|
|
}else if(w==8 && h==4){
|
|
*(uint64_t*)(p + 0*stride)=
|
|
*(uint64_t*)(p + 1*stride)=
|
|
*(uint64_t*)(p + 2*stride)=
|
|
*(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
|
|
}else if(w==16 && h==2){
|
|
*(uint64_t*)(p + 0+0*stride)=
|
|
*(uint64_t*)(p + 8+0*stride)=
|
|
*(uint64_t*)(p + 0+1*stride)=
|
|
*(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
|
|
}else if(w==16 && h==4){
|
|
*(uint64_t*)(p + 0+0*stride)=
|
|
*(uint64_t*)(p + 8+0*stride)=
|
|
*(uint64_t*)(p + 0+1*stride)=
|
|
*(uint64_t*)(p + 8+1*stride)=
|
|
*(uint64_t*)(p + 0+2*stride)=
|
|
*(uint64_t*)(p + 8+2*stride)=
|
|
*(uint64_t*)(p + 0+3*stride)=
|
|
*(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
|
|
}else
|
|
assert(0);
|
|
}
|
|
|
|
static inline void fill_caches(H264Context *h, int mb_type){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_xy= s->mb_x + s->mb_y*h->mb_stride;
|
|
int topleft_xy, top_xy, topright_xy, left_xy[2];
|
|
int topleft_type, top_type, topright_type, left_type[2];
|
|
int left_block[4];
|
|
int i;
|
|
|
|
//wow what a mess, why didnt they simplify the interlacing&intra stuff, i cant imagine that these complex rules are worth it
|
|
|
|
if(h->sps.mb_aff){
|
|
//FIXME
|
|
}else{
|
|
topleft_xy = mb_xy-1 - h->mb_stride;
|
|
top_xy = mb_xy - h->mb_stride;
|
|
topright_xy= mb_xy+1 - h->mb_stride;
|
|
left_xy[0] = mb_xy-1;
|
|
left_xy[1] = mb_xy-1;
|
|
left_block[0]= 0;
|
|
left_block[1]= 1;
|
|
left_block[2]= 2;
|
|
left_block[3]= 3;
|
|
}
|
|
|
|
topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
|
|
top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
|
|
topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
|
|
left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
|
|
left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
|
|
|
|
if(IS_INTRA(mb_type)){
|
|
h->topleft_samples_available=
|
|
h->top_samples_available=
|
|
h->left_samples_available= 0xFFFF;
|
|
h->topright_samples_available= 0xEEEA;
|
|
|
|
if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){
|
|
h->topleft_samples_available= 0xB3FF;
|
|
h->top_samples_available= 0x33FF;
|
|
h->topright_samples_available= 0x26EA;
|
|
}
|
|
for(i=0; i<2; i++){
|
|
if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){
|
|
h->topleft_samples_available&= 0xDF5F;
|
|
h->left_samples_available&= 0x5F5F;
|
|
}
|
|
}
|
|
|
|
if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))
|
|
h->topleft_samples_available&= 0x7FFF;
|
|
|
|
if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))
|
|
h->topright_samples_available&= 0xFBFF;
|
|
|
|
if(IS_INTRA4x4(mb_type)){
|
|
if(IS_INTRA4x4(top_type)){
|
|
h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
|
|
h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
|
|
h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
|
|
h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
|
|
}else{
|
|
int pred;
|
|
if(IS_INTRA16x16(top_type) || (IS_INTER(top_type) && !h->pps.constrained_intra_pred))
|
|
pred= 2;
|
|
else{
|
|
pred= -1;
|
|
}
|
|
h->intra4x4_pred_mode_cache[4+8*0]=
|
|
h->intra4x4_pred_mode_cache[5+8*0]=
|
|
h->intra4x4_pred_mode_cache[6+8*0]=
|
|
h->intra4x4_pred_mode_cache[7+8*0]= pred;
|
|
}
|
|
for(i=0; i<2; i++){
|
|
if(IS_INTRA4x4(left_type[i])){
|
|
h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
|
|
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
|
|
}else{
|
|
int pred;
|
|
if(IS_INTRA16x16(left_type[i]) || (IS_INTER(left_type[i]) && !h->pps.constrained_intra_pred))
|
|
pred= 2;
|
|
else{
|
|
pred= -1;
|
|
}
|
|
h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
|
|
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
0 . T T. T T T T
|
|
1 L . .L . . . .
|
|
2 L . .L . . . .
|
|
3 . T TL . . . .
|
|
4 L . .L . . . .
|
|
5 L . .. . . . .
|
|
*/
|
|
//FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec)
|
|
if(top_type){
|
|
h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][0];
|
|
h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][1];
|
|
h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][2];
|
|
h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
|
|
|
|
h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][7];
|
|
h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
|
|
|
|
h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][10];
|
|
h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
|
|
}else{
|
|
h->non_zero_count_cache[4+8*0]=
|
|
h->non_zero_count_cache[5+8*0]=
|
|
h->non_zero_count_cache[6+8*0]=
|
|
h->non_zero_count_cache[7+8*0]=
|
|
|
|
h->non_zero_count_cache[1+8*0]=
|
|
h->non_zero_count_cache[2+8*0]=
|
|
|
|
h->non_zero_count_cache[1+8*3]=
|
|
h->non_zero_count_cache[2+8*3]= 64;
|
|
}
|
|
|
|
if(left_type[0]){
|
|
h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][6];
|
|
h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][5];
|
|
h->non_zero_count_cache[0+8*1]= h->non_zero_count[left_xy[0]][9]; //FIXME left_block
|
|
h->non_zero_count_cache[0+8*4]= h->non_zero_count[left_xy[0]][12];
|
|
}else{
|
|
h->non_zero_count_cache[3+8*1]=
|
|
h->non_zero_count_cache[3+8*2]=
|
|
h->non_zero_count_cache[0+8*1]=
|
|
h->non_zero_count_cache[0+8*4]= 64;
|
|
}
|
|
|
|
if(left_type[1]){
|
|
h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[1]][4];
|
|
h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[1]][3];
|
|
h->non_zero_count_cache[0+8*2]= h->non_zero_count[left_xy[1]][8];
|
|
h->non_zero_count_cache[0+8*5]= h->non_zero_count[left_xy[1]][11];
|
|
}else{
|
|
h->non_zero_count_cache[3+8*3]=
|
|
h->non_zero_count_cache[3+8*4]=
|
|
h->non_zero_count_cache[0+8*2]=
|
|
h->non_zero_count_cache[0+8*5]= 64;
|
|
}
|
|
|
|
#if 1
|
|
if(IS_INTER(mb_type)){
|
|
int list;
|
|
for(list=0; list<2; list++){
|
|
if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){
|
|
/*if(!h->mv_cache_clean[list]){
|
|
memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
|
|
memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
|
|
h->mv_cache_clean[list]= 1;
|
|
}*/
|
|
continue; //FIXME direct mode ...
|
|
}
|
|
h->mv_cache_clean[list]= 0;
|
|
|
|
if(IS_INTER(topleft_type)){
|
|
const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
|
|
const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + h->b8_stride;
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
|
|
h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
|
|
}else{
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
|
|
h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
|
|
}
|
|
|
|
if(IS_INTER(top_type)){
|
|
const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
|
|
const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
|
|
h->ref_cache[list][scan8[0] + 0 - 1*8]=
|
|
h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
|
|
h->ref_cache[list][scan8[0] + 2 - 1*8]=
|
|
h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
|
|
}else{
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
|
|
*(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
|
|
}
|
|
|
|
if(IS_INTER(topright_type)){
|
|
const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
|
|
const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
|
|
h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
|
|
}else{
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
|
|
h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
|
|
}
|
|
|
|
//FIXME unify cleanup or sth
|
|
if(IS_INTER(left_type[0])){
|
|
const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
|
|
const int b8_xy= h->mb2b8_xy[left_xy[0]] + 1;
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]];
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1]];
|
|
h->ref_cache[list][scan8[0] - 1 + 0*8]=
|
|
h->ref_cache[list][scan8[0] - 1 + 1*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0]>>1)];
|
|
}else{
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 0*8]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 1*8]= 0;
|
|
h->ref_cache[list][scan8[0] - 1 + 0*8]=
|
|
h->ref_cache[list][scan8[0] - 1 + 1*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
|
|
}
|
|
|
|
if(IS_INTER(left_type[1])){
|
|
const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
|
|
const int b8_xy= h->mb2b8_xy[left_xy[1]] + 1;
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[2]];
|
|
*(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[3]];
|
|
h->ref_cache[list][scan8[0] - 1 + 2*8]=
|
|
h->ref_cache[list][scan8[0] - 1 + 3*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[2]>>1)];
|
|
}else{
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 2*8]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 3*8]= 0;
|
|
h->ref_cache[list][scan8[0] - 1 + 2*8]=
|
|
h->ref_cache[list][scan8[0] - 1 + 3*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
|
|
}
|
|
|
|
h->ref_cache[list][scan8[5 ]+1] =
|
|
h->ref_cache[list][scan8[7 ]+1] =
|
|
h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewher else)
|
|
h->ref_cache[list][scan8[4 ]] =
|
|
h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
|
|
*(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
|
|
*(uint32_t*)h->mv_cache [list][scan8[4 ]]=
|
|
*(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
|
|
}
|
|
//FIXME
|
|
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static inline void write_back_intra_pred_mode(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_xy= s->mb_x + s->mb_y*h->mb_stride;
|
|
|
|
h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
|
|
h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
|
|
h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
|
|
h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
|
|
h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
|
|
h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
|
|
h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
|
|
}
|
|
|
|
/**
|
|
* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
|
|
*/
|
|
static inline int check_intra4x4_pred_mode(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
|
|
static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
|
|
int i;
|
|
|
|
if(!(h->top_samples_available&0x8000)){
|
|
for(i=0; i<4; i++){
|
|
int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
|
|
if(status<0){
|
|
fprintf(stderr, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
|
|
return -1;
|
|
} else if(status){
|
|
h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(!(h->left_samples_available&0x8000)){
|
|
for(i=0; i<4; i++){
|
|
int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
|
|
if(status<0){
|
|
fprintf(stderr, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
|
|
return -1;
|
|
} else if(status){
|
|
h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
} //FIXME cleanup like next
|
|
|
|
/**
|
|
* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
|
|
*/
|
|
static inline int check_intra_pred_mode(H264Context *h, int mode){
|
|
MpegEncContext * const s = &h->s;
|
|
static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
|
|
static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
|
|
|
|
if(!(h->top_samples_available&0x8000)){
|
|
mode= top[ mode ];
|
|
if(mode<0){
|
|
fprintf(stderr, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if(!(h->left_samples_available&0x8000)){
|
|
mode= left[ mode ];
|
|
if(mode<0){
|
|
fprintf(stderr, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return mode;
|
|
}
|
|
|
|
/**
|
|
* gets the predicted intra4x4 prediction mode.
|
|
*/
|
|
static inline int pred_intra_mode(H264Context *h, int n){
|
|
const int index8= scan8[n];
|
|
const int left= h->intra4x4_pred_mode_cache[index8 - 1];
|
|
const int top = h->intra4x4_pred_mode_cache[index8 - 8];
|
|
const int min= FFMIN(left, top);
|
|
|
|
tprintf("mode:%d %d min:%d\n", left ,top, min);
|
|
|
|
if(min<0) return DC_PRED;
|
|
else return min;
|
|
}
|
|
|
|
static inline void write_back_non_zero_count(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_xy= s->mb_x + s->mb_y*h->mb_stride;
|
|
|
|
h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[4+8*4];
|
|
h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[5+8*4];
|
|
h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[6+8*4];
|
|
h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
|
|
h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[7+8*3];
|
|
h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[7+8*2];
|
|
h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[7+8*1];
|
|
|
|
h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[1+8*2];
|
|
h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
|
|
h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[2+8*1];
|
|
|
|
h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[1+8*5];
|
|
h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
|
|
h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[2+8*4];
|
|
}
|
|
|
|
/**
|
|
* gets the predicted number of non zero coefficients.
|
|
* @param n block index
|
|
*/
|
|
static inline int pred_non_zero_count(H264Context *h, int n){
|
|
const int index8= scan8[n];
|
|
const int left= h->non_zero_count_cache[index8 - 1];
|
|
const int top = h->non_zero_count_cache[index8 - 8];
|
|
int i= left + top;
|
|
|
|
if(i<64) i= (i+1)>>1;
|
|
|
|
tprintf("pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
|
|
|
|
return i&31;
|
|
}
|
|
|
|
static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
|
|
const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
|
|
|
|
if(topright_ref != PART_NOT_AVAILABLE){
|
|
*C= h->mv_cache[list][ i - 8 + part_width ];
|
|
return topright_ref;
|
|
}else{
|
|
tprintf("topright MV not available\n");
|
|
|
|
*C= h->mv_cache[list][ i - 8 - 1 ];
|
|
return h->ref_cache[list][ i - 8 - 1 ];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gets the predicted MV.
|
|
* @param n the block index
|
|
* @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
|
|
* @param mx the x component of the predicted motion vector
|
|
* @param my the y component of the predicted motion vector
|
|
*/
|
|
static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
|
|
MpegEncContext * const s = &h->s;
|
|
const int index8= scan8[n];
|
|
const int top_ref= h->ref_cache[list][ index8 - 8 ];
|
|
const int left_ref= h->ref_cache[list][ index8 - 1 ];
|
|
const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
|
|
const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
|
|
const int16_t * C;
|
|
int diagonal_ref, match_count;
|
|
|
|
assert(part_width==1 || part_width==2 || part_width==4);
|
|
|
|
/* mv_cache
|
|
B . . A T T T T
|
|
U . . L . . , .
|
|
U . . L . . . .
|
|
U . . L . . , .
|
|
. . . L . . . .
|
|
*/
|
|
|
|
diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
|
|
match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
|
|
|
|
if(match_count > 1){ //most common
|
|
*mx= mid_pred(A[0], B[0], C[0]);
|
|
*my= mid_pred(A[1], B[1], C[1]);
|
|
}else if(match_count==1){
|
|
if(left_ref==ref){
|
|
*mx= A[0];
|
|
*my= A[1];
|
|
}else if(top_ref==ref){
|
|
*mx= B[0];
|
|
*my= B[1];
|
|
}else{
|
|
*mx= C[0];
|
|
*my= C[1];
|
|
}
|
|
}else{
|
|
if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
|
|
*mx= A[0];
|
|
*my= A[1];
|
|
}else{
|
|
*mx= mid_pred(A[0], B[0], C[0]);
|
|
*my= mid_pred(A[1], B[1], C[1]);
|
|
}
|
|
}
|
|
|
|
tprintf("pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, s->mb_x, s->mb_y, n, list);
|
|
}
|
|
|
|
/**
|
|
* gets the directionally predicted 16x8 MV.
|
|
* @param n the block index
|
|
* @param mx the x component of the predicted motion vector
|
|
* @param my the y component of the predicted motion vector
|
|
*/
|
|
static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
|
|
MpegEncContext * const s = &h->s;
|
|
if(n==0){
|
|
const int top_ref= h->ref_cache[list][ scan8[0] - 8 ];
|
|
const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
|
|
|
|
tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d", top_ref, B[0], B[1], s->mb_x, s->mb_y, n, list);
|
|
|
|
if(top_ref == ref){
|
|
*mx= B[0];
|
|
*my= B[1];
|
|
return;
|
|
}
|
|
}else{
|
|
const int left_ref= h->ref_cache[list][ scan8[8] - 1 ];
|
|
const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
|
|
|
|
tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d", left_ref, A[0], A[1], s->mb_x, s->mb_y, n, list);
|
|
|
|
if(left_ref == ref){
|
|
*mx= A[0];
|
|
*my= A[1];
|
|
return;
|
|
}
|
|
}
|
|
|
|
//RARE
|
|
pred_motion(h, n, 4, list, ref, mx, my);
|
|
}
|
|
|
|
/**
|
|
* gets the directionally predicted 8x16 MV.
|
|
* @param n the block index
|
|
* @param mx the x component of the predicted motion vector
|
|
* @param my the y component of the predicted motion vector
|
|
*/
|
|
static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
|
|
MpegEncContext * const s = &h->s;
|
|
if(n==0){
|
|
const int left_ref= h->ref_cache[list][ scan8[0] - 1 ];
|
|
const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
|
|
|
|
tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d", left_ref, A[0], A[1], s->mb_x, s->mb_y, n, list);
|
|
|
|
if(left_ref == ref){
|
|
*mx= A[0];
|
|
*my= A[1];
|
|
return;
|
|
}
|
|
}else{
|
|
const int16_t * C;
|
|
int diagonal_ref;
|
|
|
|
diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
|
|
|
|
tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d", diagonal_ref, C[0], C[1], s->mb_x, s->mb_y, n, list);
|
|
|
|
if(diagonal_ref == ref){
|
|
*mx= C[0];
|
|
*my= C[1];
|
|
return;
|
|
}
|
|
}
|
|
|
|
//RARE
|
|
pred_motion(h, n, 2, list, ref, mx, my);
|
|
}
|
|
|
|
static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
|
|
MpegEncContext * const s = &h->s;
|
|
const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
|
|
const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
|
|
|
|
tprintf("pred_pskip: (%d) (%d) at %2d %2d", top_ref, left_ref, s->mb_x, s->mb_y);
|
|
|
|
if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
|
|
|| (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0)
|
|
|| (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){
|
|
|
|
*mx = *my = 0;
|
|
return;
|
|
}
|
|
|
|
pred_motion(h, 0, 4, 0, 0, mx, my);
|
|
|
|
return;
|
|
}
|
|
|
|
static inline void write_back_motion(H264Context *h, int mb_type){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_xy= s->mb_x + s->mb_y*h->mb_stride;
|
|
const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
|
|
const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
|
|
int list;
|
|
|
|
for(list=0; list<2; list++){
|
|
int y;
|
|
if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){
|
|
if(1){ //FIXME skip or never read if mb_type doesnt use it
|
|
for(y=0; y<4; y++){
|
|
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]=
|
|
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= 0;
|
|
}
|
|
for(y=0; y<2; y++){
|
|
*(uint16_t*)s->current_picture.motion_val[list][b8_xy + y*h->b8_stride]= (LIST_NOT_USED&0xFF)*0x0101;
|
|
}
|
|
}
|
|
continue; //FIXME direct mode ...
|
|
}
|
|
|
|
for(y=0; y<4; y++){
|
|
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
|
|
*(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
|
|
}
|
|
for(y=0; y<2; y++){
|
|
s->current_picture.ref_index[list][b8_xy + 0 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+0 + 16*y];
|
|
s->current_picture.ref_index[list][b8_xy + 1 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+2 + 16*y];
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Decodes a network abstraction layer unit.
|
|
* @param consumed is the number of bytes used as input
|
|
* @param length is the length of the array
|
|
* @param dst_length is the number of decoded bytes FIXME here or a decode rbsp ttailing?
|
|
* @returns decoded bytes, might be src+1 if no escapes
|
|
*/
|
|
static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){
|
|
int i, si, di;
|
|
uint8_t *dst;
|
|
|
|
// src[0]&0x80; //forbidden bit
|
|
h->nal_ref_idc= src[0]>>5;
|
|
h->nal_unit_type= src[0]&0x1F;
|
|
|
|
src++; length--;
|
|
#if 0
|
|
for(i=0; i<length; i++)
|
|
printf("%2X ", src[i]);
|
|
#endif
|
|
for(i=0; i+1<length; i+=2){
|
|
if(src[i]) continue;
|
|
if(i>0 && src[i-1]==0) i--;
|
|
if(i+2<length && src[i+1]==0 && src[i+2]<=3){
|
|
if(src[i+2]!=3){
|
|
/* startcode, so we must be past the end */
|
|
length=i;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(i>=length-1){ //no escaped 0
|
|
*dst_length= length;
|
|
*consumed= length+1; //+1 for the header
|
|
return src;
|
|
}
|
|
|
|
h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length);
|
|
dst= h->rbsp_buffer;
|
|
|
|
//printf("deoding esc\n");
|
|
si=di=0;
|
|
while(si<length){
|
|
//remove escapes (very rare 1:2^22)
|
|
if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
|
|
if(src[si+2]==3){ //escape
|
|
dst[di++]= 0;
|
|
dst[di++]= 0;
|
|
si+=3;
|
|
}else //next start code
|
|
break;
|
|
}
|
|
|
|
dst[di++]= src[si++];
|
|
}
|
|
|
|
*dst_length= di;
|
|
*consumed= si + 1;//+1 for the header
|
|
//FIXME store exact number of bits in the getbitcontext (its needed for decoding)
|
|
return dst;
|
|
}
|
|
|
|
/**
|
|
* @param src the data which should be escaped
|
|
* @param dst the target buffer, dst+1 == src is allowed as a special case
|
|
* @param length the length of the src data
|
|
* @param dst_length the length of the dst array
|
|
* @returns length of escaped data in bytes or -1 if an error occured
|
|
*/
|
|
static int encode_nal(H264Context *h, uint8_t *dst, uint8_t *src, int length, int dst_length){
|
|
int i, escape_count, si, di;
|
|
uint8_t *temp;
|
|
|
|
assert(length>=0);
|
|
assert(dst_length>0);
|
|
|
|
dst[0]= (h->nal_ref_idc<<5) + h->nal_unit_type;
|
|
|
|
if(length==0) return 1;
|
|
|
|
escape_count= 0;
|
|
for(i=0; i<length; i+=2){
|
|
if(src[i]) continue;
|
|
if(i>0 && src[i-1]==0)
|
|
i--;
|
|
if(i+2<length && src[i+1]==0 && src[i+2]<=3){
|
|
escape_count++;
|
|
i+=2;
|
|
}
|
|
}
|
|
|
|
if(escape_count==0){
|
|
if(dst+1 != src)
|
|
memcpy(dst+1, src, length);
|
|
return length + 1;
|
|
}
|
|
|
|
if(length + escape_count + 1> dst_length)
|
|
return -1;
|
|
|
|
//this should be damn rare (hopefully)
|
|
|
|
h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length + escape_count);
|
|
temp= h->rbsp_buffer;
|
|
//printf("encoding esc\n");
|
|
|
|
si= 0;
|
|
di= 0;
|
|
while(si < length){
|
|
if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
|
|
temp[di++]= 0; si++;
|
|
temp[di++]= 0; si++;
|
|
temp[di++]= 3;
|
|
temp[di++]= src[si++];
|
|
}
|
|
else
|
|
temp[di++]= src[si++];
|
|
}
|
|
memcpy(dst+1, temp, length+escape_count);
|
|
|
|
assert(di == length+escape_count);
|
|
|
|
return di + 1;
|
|
}
|
|
|
|
/**
|
|
* write 1,10,100,1000,... for alignment, yes its exactly inverse to mpeg4
|
|
*/
|
|
static void encode_rbsp_trailing(PutBitContext *pb){
|
|
int length;
|
|
put_bits(pb, 1, 1);
|
|
length= (-get_bit_count(pb))&7;
|
|
if(length) put_bits(pb, length, 0);
|
|
}
|
|
|
|
/**
|
|
* identifies the exact end of the bitstream
|
|
* @return the length of the trailing, or 0 if damaged
|
|
*/
|
|
static int decode_rbsp_trailing(uint8_t *src){
|
|
int v= *src;
|
|
int r;
|
|
|
|
tprintf("rbsp trailing %X\n", v);
|
|
|
|
for(r=1; r<9; r++){
|
|
if(v&1) return r;
|
|
v>>=1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* idct tranforms the 16 dc values and dequantize them.
|
|
* @param qp quantization parameter
|
|
*/
|
|
static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp){
|
|
const int qmul= dequant_coeff[qp][0];
|
|
#define stride 16
|
|
int i;
|
|
int temp[16]; //FIXME check if this is a good idea
|
|
static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
|
|
static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
|
|
|
|
//memset(block, 64, 2*256);
|
|
//return;
|
|
for(i=0; i<4; i++){
|
|
const int offset= y_offset[i];
|
|
const int z0= block[offset+stride*0] + block[offset+stride*4];
|
|
const int z1= block[offset+stride*0] - block[offset+stride*4];
|
|
const int z2= block[offset+stride*1] - block[offset+stride*5];
|
|
const int z3= block[offset+stride*1] + block[offset+stride*5];
|
|
|
|
temp[4*i+0]= z0+z3;
|
|
temp[4*i+1]= z1+z2;
|
|
temp[4*i+2]= z1-z2;
|
|
temp[4*i+3]= z0-z3;
|
|
}
|
|
|
|
for(i=0; i<4; i++){
|
|
const int offset= x_offset[i];
|
|
const int z0= temp[4*0+i] + temp[4*2+i];
|
|
const int z1= temp[4*0+i] - temp[4*2+i];
|
|
const int z2= temp[4*1+i] - temp[4*3+i];
|
|
const int z3= temp[4*1+i] + temp[4*3+i];
|
|
|
|
block[stride*0 +offset]= ((z0 + z3)*qmul + 2)>>2; //FIXME think about merging this into decode_resdual
|
|
block[stride*2 +offset]= ((z1 + z2)*qmul + 2)>>2;
|
|
block[stride*8 +offset]= ((z1 - z2)*qmul + 2)>>2;
|
|
block[stride*10+offset]= ((z0 - z3)*qmul + 2)>>2;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* dct tranforms the 16 dc values.
|
|
* @param qp quantization parameter ??? FIXME
|
|
*/
|
|
static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
|
|
// const int qmul= dequant_coeff[qp][0];
|
|
int i;
|
|
int temp[16]; //FIXME check if this is a good idea
|
|
static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
|
|
static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
|
|
|
|
for(i=0; i<4; i++){
|
|
const int offset= y_offset[i];
|
|
const int z0= block[offset+stride*0] + block[offset+stride*4];
|
|
const int z1= block[offset+stride*0] - block[offset+stride*4];
|
|
const int z2= block[offset+stride*1] - block[offset+stride*5];
|
|
const int z3= block[offset+stride*1] + block[offset+stride*5];
|
|
|
|
temp[4*i+0]= z0+z3;
|
|
temp[4*i+1]= z1+z2;
|
|
temp[4*i+2]= z1-z2;
|
|
temp[4*i+3]= z0-z3;
|
|
}
|
|
|
|
for(i=0; i<4; i++){
|
|
const int offset= x_offset[i];
|
|
const int z0= temp[4*0+i] + temp[4*2+i];
|
|
const int z1= temp[4*0+i] - temp[4*2+i];
|
|
const int z2= temp[4*1+i] - temp[4*3+i];
|
|
const int z3= temp[4*1+i] + temp[4*3+i];
|
|
|
|
block[stride*0 +offset]= (z0 + z3)>>1;
|
|
block[stride*2 +offset]= (z1 + z2)>>1;
|
|
block[stride*8 +offset]= (z1 - z2)>>1;
|
|
block[stride*10+offset]= (z0 - z3)>>1;
|
|
}
|
|
}
|
|
#undef xStride
|
|
#undef stride
|
|
|
|
static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp){
|
|
const int qmul= dequant_coeff[qp][0];
|
|
const int stride= 16*2;
|
|
const int xStride= 16;
|
|
int a,b,c,d,e;
|
|
|
|
a= block[stride*0 + xStride*0];
|
|
b= block[stride*0 + xStride*1];
|
|
c= block[stride*1 + xStride*0];
|
|
d= block[stride*1 + xStride*1];
|
|
|
|
e= a-b;
|
|
a= a+b;
|
|
b= c-d;
|
|
c= c+d;
|
|
|
|
block[stride*0 + xStride*0]= ((a+c)*qmul + 0)>>1;
|
|
block[stride*0 + xStride*1]= ((e+b)*qmul + 0)>>1;
|
|
block[stride*1 + xStride*0]= ((a-c)*qmul + 0)>>1;
|
|
block[stride*1 + xStride*1]= ((e-b)*qmul + 0)>>1;
|
|
}
|
|
|
|
static void chroma_dc_dct_c(DCTELEM *block){
|
|
const int stride= 16*2;
|
|
const int xStride= 16;
|
|
int a,b,c,d,e;
|
|
|
|
a= block[stride*0 + xStride*0];
|
|
b= block[stride*0 + xStride*1];
|
|
c= block[stride*1 + xStride*0];
|
|
d= block[stride*1 + xStride*1];
|
|
|
|
e= a-b;
|
|
a= a+b;
|
|
b= c-d;
|
|
c= c+d;
|
|
|
|
block[stride*0 + xStride*0]= (a+c);
|
|
block[stride*0 + xStride*1]= (e+b);
|
|
block[stride*1 + xStride*0]= (a-c);
|
|
block[stride*1 + xStride*1]= (e-b);
|
|
}
|
|
|
|
/**
|
|
* gets the chroma qp.
|
|
*/
|
|
static inline int get_chroma_qp(H264Context *h, int qscale){
|
|
|
|
return chroma_qp[clip(qscale + h->pps.chroma_qp_index_offset, 0, 51)];
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
static void h264_add_idct_c(uint8_t *dst, DCTELEM *block, int stride){
|
|
int i;
|
|
uint8_t *cm = cropTbl + MAX_NEG_CROP;
|
|
|
|
block[0] += 32;
|
|
#if 1
|
|
for(i=0; i<4; i++){
|
|
const int z0= block[i + 4*0] + block[i + 4*2];
|
|
const int z1= block[i + 4*0] - block[i + 4*2];
|
|
const int z2= (block[i + 4*1]>>1) - block[i + 4*3];
|
|
const int z3= block[i + 4*1] + (block[i + 4*3]>>1);
|
|
|
|
block[i + 4*0]= z0 + z3;
|
|
block[i + 4*1]= z1 + z2;
|
|
block[i + 4*2]= z1 - z2;
|
|
block[i + 4*3]= z0 - z3;
|
|
}
|
|
|
|
for(i=0; i<4; i++){
|
|
const int z0= block[0 + 4*i] + block[2 + 4*i];
|
|
const int z1= block[0 + 4*i] - block[2 + 4*i];
|
|
const int z2= (block[1 + 4*i]>>1) - block[3 + 4*i];
|
|
const int z3= block[1 + 4*i] + (block[3 + 4*i]>>1);
|
|
|
|
dst[0 + i*stride]= cm[ dst[0 + i*stride] + ((z0 + z3) >> 6) ];
|
|
dst[1 + i*stride]= cm[ dst[1 + i*stride] + ((z1 + z2) >> 6) ];
|
|
dst[2 + i*stride]= cm[ dst[2 + i*stride] + ((z1 - z2) >> 6) ];
|
|
dst[3 + i*stride]= cm[ dst[3 + i*stride] + ((z0 - z3) >> 6) ];
|
|
}
|
|
#else
|
|
for(i=0; i<4; i++){
|
|
const int z0= block[0 + 4*i] + block[2 + 4*i];
|
|
const int z1= block[0 + 4*i] - block[2 + 4*i];
|
|
const int z2= (block[1 + 4*i]>>1) - block[3 + 4*i];
|
|
const int z3= block[1 + 4*i] + (block[3 + 4*i]>>1);
|
|
|
|
block[0 + 4*i]= z0 + z3;
|
|
block[1 + 4*i]= z1 + z2;
|
|
block[2 + 4*i]= z1 - z2;
|
|
block[3 + 4*i]= z0 - z3;
|
|
}
|
|
|
|
for(i=0; i<4; i++){
|
|
const int z0= block[i + 4*0] + block[i + 4*2];
|
|
const int z1= block[i + 4*0] - block[i + 4*2];
|
|
const int z2= (block[i + 4*1]>>1) - block[i + 4*3];
|
|
const int z3= block[i + 4*1] + (block[i + 4*3]>>1);
|
|
|
|
dst[i + 0*stride]= cm[ dst[i + 0*stride] + ((z0 + z3) >> 6) ];
|
|
dst[i + 1*stride]= cm[ dst[i + 1*stride] + ((z1 + z2) >> 6) ];
|
|
dst[i + 2*stride]= cm[ dst[i + 2*stride] + ((z1 - z2) >> 6) ];
|
|
dst[i + 3*stride]= cm[ dst[i + 3*stride] + ((z0 - z3) >> 6) ];
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static void h264_diff_dct_c(DCTELEM *block, uint8_t *src1, uint8_t *src2, int stride){
|
|
int i;
|
|
//FIXME try int temp instead of block
|
|
|
|
for(i=0; i<4; i++){
|
|
const int d0= src1[0 + i*stride] - src2[0 + i*stride];
|
|
const int d1= src1[1 + i*stride] - src2[1 + i*stride];
|
|
const int d2= src1[2 + i*stride] - src2[2 + i*stride];
|
|
const int d3= src1[3 + i*stride] - src2[3 + i*stride];
|
|
const int z0= d0 + d3;
|
|
const int z3= d0 - d3;
|
|
const int z1= d1 + d2;
|
|
const int z2= d1 - d2;
|
|
|
|
block[0 + 4*i]= z0 + z1;
|
|
block[1 + 4*i]= 2*z3 + z2;
|
|
block[2 + 4*i]= z0 - z1;
|
|
block[3 + 4*i]= z3 - 2*z2;
|
|
}
|
|
|
|
for(i=0; i<4; i++){
|
|
const int z0= block[0*4 + i] + block[3*4 + i];
|
|
const int z3= block[0*4 + i] - block[3*4 + i];
|
|
const int z1= block[1*4 + i] + block[2*4 + i];
|
|
const int z2= block[1*4 + i] - block[2*4 + i];
|
|
|
|
block[0*4 + i]= z0 + z1;
|
|
block[1*4 + i]= 2*z3 + z2;
|
|
block[2*4 + i]= z0 - z1;
|
|
block[3*4 + i]= z3 - 2*z2;
|
|
}
|
|
}
|
|
|
|
//FIXME need to check that this doesnt overflow signed 32 bit for low qp, iam not sure, its very close
|
|
//FIXME check that gcc inlines this (and optimizes intra & seperate_dc stuff away)
|
|
static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int seperate_dc){
|
|
int i;
|
|
const int * const quant_table= quant_coeff[qscale];
|
|
const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
|
|
const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
|
|
const unsigned int threshold2= (threshold1<<1);
|
|
int last_non_zero;
|
|
|
|
if(seperate_dc){
|
|
if(qscale<=18){
|
|
//avoid overflows
|
|
const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
|
|
const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
|
|
const unsigned int dc_threshold2= (dc_threshold1<<1);
|
|
|
|
int level= block[0]*quant_coeff[qscale+18][0];
|
|
if(((unsigned)(level+dc_threshold1))>dc_threshold2){
|
|
if(level>0){
|
|
level= (dc_bias + level)>>(QUANT_SHIFT-2);
|
|
block[0]= level;
|
|
}else{
|
|
level= (dc_bias - level)>>(QUANT_SHIFT-2);
|
|
block[0]= -level;
|
|
}
|
|
// last_non_zero = i;
|
|
}else{
|
|
block[0]=0;
|
|
}
|
|
}else{
|
|
const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
|
|
const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
|
|
const unsigned int dc_threshold2= (dc_threshold1<<1);
|
|
|
|
int level= block[0]*quant_table[0];
|
|
if(((unsigned)(level+dc_threshold1))>dc_threshold2){
|
|
if(level>0){
|
|
level= (dc_bias + level)>>(QUANT_SHIFT+1);
|
|
block[0]= level;
|
|
}else{
|
|
level= (dc_bias - level)>>(QUANT_SHIFT+1);
|
|
block[0]= -level;
|
|
}
|
|
// last_non_zero = i;
|
|
}else{
|
|
block[0]=0;
|
|
}
|
|
}
|
|
last_non_zero= 0;
|
|
i=1;
|
|
}else{
|
|
last_non_zero= -1;
|
|
i=0;
|
|
}
|
|
|
|
for(; i<16; i++){
|
|
const int j= scantable[i];
|
|
int level= block[j]*quant_table[j];
|
|
|
|
// if( bias+level >= (1<<(QMAT_SHIFT - 3))
|
|
// || bias-level >= (1<<(QMAT_SHIFT - 3))){
|
|
if(((unsigned)(level+threshold1))>threshold2){
|
|
if(level>0){
|
|
level= (bias + level)>>QUANT_SHIFT;
|
|
block[j]= level;
|
|
}else{
|
|
level= (bias - level)>>QUANT_SHIFT;
|
|
block[j]= -level;
|
|
}
|
|
last_non_zero = i;
|
|
}else{
|
|
block[j]=0;
|
|
}
|
|
}
|
|
|
|
return last_non_zero;
|
|
}
|
|
|
|
static void pred4x4_vertical_c(uint8_t *src, uint8_t *topright, int stride){
|
|
const uint32_t a= ((uint32_t*)(src-stride))[0];
|
|
((uint32_t*)(src+0*stride))[0]= a;
|
|
((uint32_t*)(src+1*stride))[0]= a;
|
|
((uint32_t*)(src+2*stride))[0]= a;
|
|
((uint32_t*)(src+3*stride))[0]= a;
|
|
}
|
|
|
|
static void pred4x4_horizontal_c(uint8_t *src, uint8_t *topright, int stride){
|
|
((uint32_t*)(src+0*stride))[0]= src[-1+0*stride]*0x01010101;
|
|
((uint32_t*)(src+1*stride))[0]= src[-1+1*stride]*0x01010101;
|
|
((uint32_t*)(src+2*stride))[0]= src[-1+2*stride]*0x01010101;
|
|
((uint32_t*)(src+3*stride))[0]= src[-1+3*stride]*0x01010101;
|
|
}
|
|
|
|
static void pred4x4_dc_c(uint8_t *src, uint8_t *topright, int stride){
|
|
const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride]
|
|
+ src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 4) >>3;
|
|
|
|
((uint32_t*)(src+0*stride))[0]=
|
|
((uint32_t*)(src+1*stride))[0]=
|
|
((uint32_t*)(src+2*stride))[0]=
|
|
((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
|
|
}
|
|
|
|
static void pred4x4_left_dc_c(uint8_t *src, uint8_t *topright, int stride){
|
|
const int dc= ( src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 2) >>2;
|
|
|
|
((uint32_t*)(src+0*stride))[0]=
|
|
((uint32_t*)(src+1*stride))[0]=
|
|
((uint32_t*)(src+2*stride))[0]=
|
|
((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
|
|
}
|
|
|
|
static void pred4x4_top_dc_c(uint8_t *src, uint8_t *topright, int stride){
|
|
const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride] + 2) >>2;
|
|
|
|
((uint32_t*)(src+0*stride))[0]=
|
|
((uint32_t*)(src+1*stride))[0]=
|
|
((uint32_t*)(src+2*stride))[0]=
|
|
((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
|
|
}
|
|
|
|
static void pred4x4_128_dc_c(uint8_t *src, uint8_t *topright, int stride){
|
|
((uint32_t*)(src+0*stride))[0]=
|
|
((uint32_t*)(src+1*stride))[0]=
|
|
((uint32_t*)(src+2*stride))[0]=
|
|
((uint32_t*)(src+3*stride))[0]= 128U*0x01010101U;
|
|
}
|
|
|
|
|
|
#define LOAD_TOP_RIGHT_EDGE\
|
|
const int t4= topright[0];\
|
|
const int t5= topright[1];\
|
|
const int t6= topright[2];\
|
|
const int t7= topright[3];\
|
|
|
|
#define LOAD_LEFT_EDGE\
|
|
const int l0= src[-1+0*stride];\
|
|
const int l1= src[-1+1*stride];\
|
|
const int l2= src[-1+2*stride];\
|
|
const int l3= src[-1+3*stride];\
|
|
|
|
#define LOAD_TOP_EDGE\
|
|
const int t0= src[ 0-1*stride];\
|
|
const int t1= src[ 1-1*stride];\
|
|
const int t2= src[ 2-1*stride];\
|
|
const int t3= src[ 3-1*stride];\
|
|
|
|
static void pred4x4_down_right_c(uint8_t *src, uint8_t *topright, int stride){
|
|
const int lt= src[-1-1*stride];
|
|
LOAD_TOP_EDGE
|
|
LOAD_LEFT_EDGE
|
|
|
|
src[0+3*stride]=(l3 + 2*l2 + l1 + 2)>>2;
|
|
src[0+2*stride]=
|
|
src[1+3*stride]=(l2 + 2*l1 + l0 + 2)>>2;
|
|
src[0+1*stride]=
|
|
src[1+2*stride]=
|
|
src[2+3*stride]=(l1 + 2*l0 + lt + 2)>>2;
|
|
src[0+0*stride]=
|
|
src[1+1*stride]=
|
|
src[2+2*stride]=
|
|
src[3+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
|
|
src[1+0*stride]=
|
|
src[2+1*stride]=
|
|
src[3+2*stride]=(lt + 2*t0 + t1 + 2)>>2;
|
|
src[2+0*stride]=
|
|
src[3+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
|
|
src[3+0*stride]=(t1 + 2*t2 + t3 + 2)>>2;
|
|
};
|
|
|
|
static void pred4x4_down_left_c(uint8_t *src, uint8_t *topright, int stride){
|
|
LOAD_TOP_EDGE
|
|
LOAD_TOP_RIGHT_EDGE
|
|
// LOAD_LEFT_EDGE
|
|
|
|
src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2;
|
|
src[1+0*stride]=
|
|
src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2;
|
|
src[2+0*stride]=
|
|
src[1+1*stride]=
|
|
src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2;
|
|
src[3+0*stride]=
|
|
src[2+1*stride]=
|
|
src[1+2*stride]=
|
|
src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2;
|
|
src[3+1*stride]=
|
|
src[2+2*stride]=
|
|
src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2;
|
|
src[3+2*stride]=
|
|
src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2;
|
|
src[3+3*stride]=(t6 + 3*t7 + 2)>>2;
|
|
};
|
|
|
|
static void pred4x4_vertical_right_c(uint8_t *src, uint8_t *topright, int stride){
|
|
const int lt= src[-1-1*stride];
|
|
LOAD_TOP_EDGE
|
|
LOAD_LEFT_EDGE
|
|
const __attribute__((unused)) int unu= l3;
|
|
|
|
src[0+0*stride]=
|
|
src[1+2*stride]=(lt + t0 + 1)>>1;
|
|
src[1+0*stride]=
|
|
src[2+2*stride]=(t0 + t1 + 1)>>1;
|
|
src[2+0*stride]=
|
|
src[3+2*stride]=(t1 + t2 + 1)>>1;
|
|
src[3+0*stride]=(t2 + t3 + 1)>>1;
|
|
src[0+1*stride]=
|
|
src[1+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
|
|
src[1+1*stride]=
|
|
src[2+3*stride]=(lt + 2*t0 + t1 + 2)>>2;
|
|
src[2+1*stride]=
|
|
src[3+3*stride]=(t0 + 2*t1 + t2 + 2)>>2;
|
|
src[3+1*stride]=(t1 + 2*t2 + t3 + 2)>>2;
|
|
src[0+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
|
|
src[0+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
|
|
};
|
|
|
|
static void pred4x4_vertical_left_c(uint8_t *src, uint8_t *topright, int stride){
|
|
LOAD_TOP_EDGE
|
|
LOAD_TOP_RIGHT_EDGE
|
|
const __attribute__((unused)) int unu= t7;
|
|
|
|
src[0+0*stride]=(t0 + t1 + 1)>>1;
|
|
src[1+0*stride]=
|
|
src[0+2*stride]=(t1 + t2 + 1)>>1;
|
|
src[2+0*stride]=
|
|
src[1+2*stride]=(t2 + t3 + 1)>>1;
|
|
src[3+0*stride]=
|
|
src[2+2*stride]=(t3 + t4+ 1)>>1;
|
|
src[3+2*stride]=(t4 + t5+ 1)>>1;
|
|
src[0+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
|
|
src[1+1*stride]=
|
|
src[0+3*stride]=(t1 + 2*t2 + t3 + 2)>>2;
|
|
src[2+1*stride]=
|
|
src[1+3*stride]=(t2 + 2*t3 + t4 + 2)>>2;
|
|
src[3+1*stride]=
|
|
src[2+3*stride]=(t3 + 2*t4 + t5 + 2)>>2;
|
|
src[3+3*stride]=(t4 + 2*t5 + t6 + 2)>>2;
|
|
};
|
|
|
|
static void pred4x4_horizontal_up_c(uint8_t *src, uint8_t *topright, int stride){
|
|
LOAD_LEFT_EDGE
|
|
|
|
src[0+0*stride]=(l0 + l1 + 1)>>1;
|
|
src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2;
|
|
src[2+0*stride]=
|
|
src[0+1*stride]=(l1 + l2 + 1)>>1;
|
|
src[3+0*stride]=
|
|
src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2;
|
|
src[2+1*stride]=
|
|
src[0+2*stride]=(l2 + l3 + 1)>>1;
|
|
src[3+1*stride]=
|
|
src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2;
|
|
src[3+2*stride]=
|
|
src[1+3*stride]=
|
|
src[0+3*stride]=
|
|
src[2+2*stride]=
|
|
src[2+3*stride]=
|
|
src[3+3*stride]=l3;
|
|
};
|
|
|
|
static void pred4x4_horizontal_down_c(uint8_t *src, uint8_t *topright, int stride){
|
|
const int lt= src[-1-1*stride];
|
|
LOAD_TOP_EDGE
|
|
LOAD_LEFT_EDGE
|
|
const __attribute__((unused)) int unu= t3;
|
|
|
|
src[0+0*stride]=
|
|
src[2+1*stride]=(lt + l0 + 1)>>1;
|
|
src[1+0*stride]=
|
|
src[3+1*stride]=(l0 + 2*lt + t0 + 2)>>2;
|
|
src[2+0*stride]=(lt + 2*t0 + t1 + 2)>>2;
|
|
src[3+0*stride]=(t0 + 2*t1 + t2 + 2)>>2;
|
|
src[0+1*stride]=
|
|
src[2+2*stride]=(l0 + l1 + 1)>>1;
|
|
src[1+1*stride]=
|
|
src[3+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
|
|
src[0+2*stride]=
|
|
src[2+3*stride]=(l1 + l2+ 1)>>1;
|
|
src[1+2*stride]=
|
|
src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
|
|
src[0+3*stride]=(l2 + l3 + 1)>>1;
|
|
src[1+3*stride]=(l1 + 2*l2 + l3 + 2)>>2;
|
|
};
|
|
|
|
static void pred16x16_vertical_c(uint8_t *src, int stride){
|
|
int i;
|
|
const uint32_t a= ((uint32_t*)(src-stride))[0];
|
|
const uint32_t b= ((uint32_t*)(src-stride))[1];
|
|
const uint32_t c= ((uint32_t*)(src-stride))[2];
|
|
const uint32_t d= ((uint32_t*)(src-stride))[3];
|
|
|
|
for(i=0; i<16; i++){
|
|
((uint32_t*)(src+i*stride))[0]= a;
|
|
((uint32_t*)(src+i*stride))[1]= b;
|
|
((uint32_t*)(src+i*stride))[2]= c;
|
|
((uint32_t*)(src+i*stride))[3]= d;
|
|
}
|
|
}
|
|
|
|
static void pred16x16_horizontal_c(uint8_t *src, int stride){
|
|
int i;
|
|
|
|
for(i=0; i<16; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]=
|
|
((uint32_t*)(src+i*stride))[2]=
|
|
((uint32_t*)(src+i*stride))[3]= src[-1+i*stride]*0x01010101;
|
|
}
|
|
}
|
|
|
|
static void pred16x16_dc_c(uint8_t *src, int stride){
|
|
int i, dc=0;
|
|
|
|
for(i=0;i<16; i++){
|
|
dc+= src[-1+i*stride];
|
|
}
|
|
|
|
for(i=0;i<16; i++){
|
|
dc+= src[i-stride];
|
|
}
|
|
|
|
dc= 0x01010101*((dc + 16)>>5);
|
|
|
|
for(i=0; i<16; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]=
|
|
((uint32_t*)(src+i*stride))[2]=
|
|
((uint32_t*)(src+i*stride))[3]= dc;
|
|
}
|
|
}
|
|
|
|
static void pred16x16_left_dc_c(uint8_t *src, int stride){
|
|
int i, dc=0;
|
|
|
|
for(i=0;i<16; i++){
|
|
dc+= src[-1+i*stride];
|
|
}
|
|
|
|
dc= 0x01010101*((dc + 8)>>4);
|
|
|
|
for(i=0; i<16; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]=
|
|
((uint32_t*)(src+i*stride))[2]=
|
|
((uint32_t*)(src+i*stride))[3]= dc;
|
|
}
|
|
}
|
|
|
|
static void pred16x16_top_dc_c(uint8_t *src, int stride){
|
|
int i, dc=0;
|
|
|
|
for(i=0;i<16; i++){
|
|
dc+= src[i-stride];
|
|
}
|
|
dc= 0x01010101*((dc + 8)>>4);
|
|
|
|
for(i=0; i<16; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]=
|
|
((uint32_t*)(src+i*stride))[2]=
|
|
((uint32_t*)(src+i*stride))[3]= dc;
|
|
}
|
|
}
|
|
|
|
static void pred16x16_128_dc_c(uint8_t *src, int stride){
|
|
int i;
|
|
|
|
for(i=0; i<16; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]=
|
|
((uint32_t*)(src+i*stride))[2]=
|
|
((uint32_t*)(src+i*stride))[3]= 0x01010101U*128U;
|
|
}
|
|
}
|
|
|
|
static void pred16x16_plane_c(uint8_t *src, int stride){
|
|
uint8_t *cm = cropTbl + MAX_NEG_CROP;
|
|
int i, dx, dy, dc;
|
|
int temp[16];
|
|
|
|
dc= 16*(src[15-stride] + src[-1+15*stride]);
|
|
|
|
dx=dy=0;
|
|
for(i=1; i<9; i++){
|
|
dx += i*(src[7+i-stride] - src[7-i-stride]);
|
|
dy += i*(src[-1+(7+i)*stride] - src[-1+(7-i)*stride]);
|
|
}
|
|
dx= (5*dx+32)>>6;
|
|
dy= (5*dy+32)>>6;
|
|
|
|
dc += 16;
|
|
|
|
//FIXME modifiy dc,dx,dy to avoid -7
|
|
|
|
for(i=0; i<16; i++)
|
|
temp[i]= dx*(i-7) + dc;
|
|
|
|
if( (dc - ABS(dx)*8 - ABS(dy)*8)>>5 < 0
|
|
|| (dc + ABS(dx)*8 + ABS(dy)*8)>>5 > 255){
|
|
|
|
for(i=0; i<16; i++){
|
|
int j;
|
|
for(j=0; j<16; j++)
|
|
src[j + i*stride]= cm[ (temp[j] + dy*(i-7))>>5 ];
|
|
}
|
|
}else{
|
|
for(i=0; i<16; i++){
|
|
int j;
|
|
for(j=0; j<16; j++)
|
|
src[j + i*stride]= (temp[j] + dy*(i-7))>>5;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void pred8x8_vertical_c(uint8_t *src, int stride){
|
|
int i;
|
|
const uint32_t a= ((uint32_t*)(src-stride))[0];
|
|
const uint32_t b= ((uint32_t*)(src-stride))[1];
|
|
|
|
for(i=0; i<8; i++){
|
|
((uint32_t*)(src+i*stride))[0]= a;
|
|
((uint32_t*)(src+i*stride))[1]= b;
|
|
}
|
|
}
|
|
|
|
static void pred8x8_horizontal_c(uint8_t *src, int stride){
|
|
int i;
|
|
|
|
for(i=0; i<8; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]= src[-1+i*stride]*0x01010101;
|
|
}
|
|
}
|
|
|
|
static void pred8x8_128_dc_c(uint8_t *src, int stride){
|
|
int i;
|
|
|
|
for(i=0; i<4; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
|
|
}
|
|
for(i=4; i<8; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
|
|
}
|
|
}
|
|
|
|
static void pred8x8_left_dc_c(uint8_t *src, int stride){
|
|
int i;
|
|
int dc0, dc2;
|
|
|
|
dc0=dc2=0;
|
|
for(i=0;i<4; i++){
|
|
dc0+= src[-1+i*stride];
|
|
dc2+= src[-1+(i+4)*stride];
|
|
}
|
|
dc0= 0x01010101*((dc0 + 2)>>2);
|
|
dc2= 0x01010101*((dc2 + 2)>>2);
|
|
|
|
for(i=0; i<4; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]= dc0;
|
|
}
|
|
for(i=4; i<8; i++){
|
|
((uint32_t*)(src+i*stride))[0]=
|
|
((uint32_t*)(src+i*stride))[1]= dc2;
|
|
}
|
|
}
|
|
|
|
static void pred8x8_top_dc_c(uint8_t *src, int stride){
|
|
int i;
|
|
int dc0, dc1;
|
|
|
|
dc0=dc1=0;
|
|
for(i=0;i<4; i++){
|
|
dc0+= src[i-stride];
|
|
dc1+= src[4+i-stride];
|
|
}
|
|
dc0= 0x01010101*((dc0 + 2)>>2);
|
|
dc1= 0x01010101*((dc1 + 2)>>2);
|
|
|
|
for(i=0; i<4; i++){
|
|
((uint32_t*)(src+i*stride))[0]= dc0;
|
|
((uint32_t*)(src+i*stride))[1]= dc1;
|
|
}
|
|
for(i=4; i<8; i++){
|
|
((uint32_t*)(src+i*stride))[0]= dc0;
|
|
((uint32_t*)(src+i*stride))[1]= dc1;
|
|
}
|
|
}
|
|
|
|
|
|
static void pred8x8_dc_c(uint8_t *src, int stride){
|
|
int i;
|
|
int dc0, dc1, dc2, dc3;
|
|
|
|
dc0=dc1=dc2=0;
|
|
for(i=0;i<4; i++){
|
|
dc0+= src[-1+i*stride] + src[i-stride];
|
|
dc1+= src[4+i-stride];
|
|
dc2+= src[-1+(i+4)*stride];
|
|
}
|
|
dc3= 0x01010101*((dc1 + dc2 + 4)>>3);
|
|
dc0= 0x01010101*((dc0 + 4)>>3);
|
|
dc1= 0x01010101*((dc1 + 2)>>2);
|
|
dc2= 0x01010101*((dc2 + 2)>>2);
|
|
|
|
for(i=0; i<4; i++){
|
|
((uint32_t*)(src+i*stride))[0]= dc0;
|
|
((uint32_t*)(src+i*stride))[1]= dc1;
|
|
}
|
|
for(i=4; i<8; i++){
|
|
((uint32_t*)(src+i*stride))[0]= dc2;
|
|
((uint32_t*)(src+i*stride))[1]= dc3;
|
|
}
|
|
}
|
|
|
|
static void pred8x8_plane_c(uint8_t *src, int stride){
|
|
uint8_t *cm = cropTbl + MAX_NEG_CROP;
|
|
int i, dx, dy, dc;
|
|
int temp[8];
|
|
|
|
dc= 16*(src[7-stride] + src[-1+7*stride]);
|
|
|
|
dx=dy=0;
|
|
for(i=1; i<5; i++){
|
|
dx += i*(src[3+i-stride] - src[3-i-stride]);
|
|
dy += i*(src[-1+(3+i)*stride] - src[-1+(3-i)*stride]);
|
|
}
|
|
dx= (17*dx+16)>>5;
|
|
dy= (17*dy+16)>>5;
|
|
|
|
dc += 16;
|
|
|
|
//FIXME modifiy dc,dx,dy to avoid -3
|
|
|
|
for(i=0; i<8; i++)
|
|
temp[i]= dx*(i-3) + dc;
|
|
|
|
if( (dc - ABS(dx)*4 - ABS(dy)*4)>>5 < 0
|
|
|| (dc + ABS(dx)*4 + ABS(dy)*4)>>5 > 255){
|
|
|
|
for(i=0; i<8; i++){
|
|
int j;
|
|
for(j=0; j<8; j++)
|
|
src[j + i*stride]= cm[ (temp[j] + dy*(i-3))>>5 ];
|
|
}
|
|
}else{
|
|
for(i=0; i<8; i++){
|
|
int j;
|
|
for(j=0; j<8; j++)
|
|
src[j + i*stride]= (temp[j] + dy*(i-3))>>5;
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
|
|
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
|
|
int src_x_offset, int src_y_offset,
|
|
qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
|
|
const int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
|
|
const int luma_xy= (mx&3) + ((my&3)<<2);
|
|
uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*s->linesize;
|
|
uint8_t * src_cb= pic->data[1] + (mx>>3) + (my>>3)*s->uvlinesize;
|
|
uint8_t * src_cr= pic->data[2] + (mx>>3) + (my>>3)*s->uvlinesize;
|
|
int extra_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; //FIXME increase edge?, IMHO not worth it
|
|
int extra_height= extra_width;
|
|
int emu=0;
|
|
const int full_mx= mx>>2;
|
|
const int full_my= my>>2;
|
|
|
|
assert(pic->data[0]);
|
|
|
|
if(mx&7) extra_width -= 3;
|
|
if(my&7) extra_height -= 3;
|
|
|
|
if( full_mx < 0-extra_width
|
|
|| full_my < 0-extra_height
|
|
|| full_mx + 16/*FIXME*/ > s->width + extra_width
|
|
|| full_my + 16/*FIXME*/ > s->height + extra_height){
|
|
ff_emulated_edge_mc(s, src_y - 2 - 2*s->linesize, s->linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, s->width, s->height);
|
|
src_y= s->edge_emu_buffer + 2 + 2*s->linesize;
|
|
emu=1;
|
|
}
|
|
|
|
qpix_op[luma_xy](dest_y, src_y, s->linesize); //FIXME try variable height perhaps?
|
|
if(!square){
|
|
qpix_op[luma_xy](dest_y + delta, src_y + delta, s->linesize);
|
|
}
|
|
|
|
if(s->flags&CODEC_FLAG_GRAY) return;
|
|
|
|
if(emu){
|
|
ff_emulated_edge_mc(s, src_cb, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
|
|
src_cb= s->edge_emu_buffer;
|
|
}
|
|
chroma_op(dest_cb, src_cb, s->uvlinesize, chroma_height, mx&7, my&7);
|
|
|
|
if(emu){
|
|
ff_emulated_edge_mc(s, src_cr, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
|
|
src_cr= s->edge_emu_buffer;
|
|
}
|
|
chroma_op(dest_cr, src_cr, s->uvlinesize, chroma_height, mx&7, my&7);
|
|
}
|
|
|
|
static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
|
|
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
|
|
int x_offset, int y_offset,
|
|
qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
|
|
qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
|
|
int list0, int list1){
|
|
MpegEncContext * const s = &h->s;
|
|
qpel_mc_func *qpix_op= qpix_put;
|
|
h264_chroma_mc_func chroma_op= chroma_put;
|
|
|
|
dest_y += 2*x_offset + 2*y_offset*s-> linesize;
|
|
dest_cb += x_offset + y_offset*s->uvlinesize;
|
|
dest_cr += x_offset + y_offset*s->uvlinesize;
|
|
x_offset += 8*s->mb_x;
|
|
y_offset += 8*s->mb_y;
|
|
|
|
if(list0){
|
|
Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
|
|
mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
|
|
dest_y, dest_cb, dest_cr, x_offset, y_offset,
|
|
qpix_op, chroma_op);
|
|
|
|
qpix_op= qpix_avg;
|
|
chroma_op= chroma_avg;
|
|
}
|
|
|
|
if(list1){
|
|
Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
|
|
mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
|
|
dest_y, dest_cb, dest_cr, x_offset, y_offset,
|
|
qpix_op, chroma_op);
|
|
}
|
|
}
|
|
|
|
static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
|
|
qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
|
|
qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg)){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_xy= s->mb_x + s->mb_y*h->mb_stride;
|
|
const int mb_type= s->current_picture.mb_type[mb_xy];
|
|
|
|
assert(IS_INTER(mb_type));
|
|
|
|
if(IS_16X16(mb_type)){
|
|
mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
|
|
qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
|
|
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
|
|
}else if(IS_16X8(mb_type)){
|
|
mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
|
|
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
|
|
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
|
|
mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
|
|
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
|
|
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
|
|
}else if(IS_8X16(mb_type)){
|
|
mc_part(h, 0, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 0, 0,
|
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
|
|
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
|
|
mc_part(h, 4, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 4, 0,
|
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
|
|
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
|
|
}else{
|
|
int i;
|
|
|
|
assert(IS_8X8(mb_type));
|
|
|
|
for(i=0; i<4; i++){
|
|
const int sub_mb_type= h->sub_mb_type[i];
|
|
const int n= 4*i;
|
|
int x_offset= (i&1)<<2;
|
|
int y_offset= (i&2)<<1;
|
|
|
|
if(IS_SUB_8X8(sub_mb_type)){
|
|
mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
|
|
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
}else if(IS_SUB_8X4(sub_mb_type)){
|
|
mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
|
|
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
|
|
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
}else if(IS_SUB_4X8(sub_mb_type)){
|
|
mc_part(h, n , 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
|
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
mc_part(h, n+1, 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
|
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
}else{
|
|
int j;
|
|
assert(IS_SUB_4X4(sub_mb_type));
|
|
for(j=0; j<4; j++){
|
|
int sub_x_offset= x_offset + 2*(j&1);
|
|
int sub_y_offset= y_offset + (j&2);
|
|
mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
|
|
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
|
|
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void decode_init_vlc(H264Context *h){
|
|
static int done = 0;
|
|
|
|
if (!done) {
|
|
int i;
|
|
done = 1;
|
|
|
|
init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5,
|
|
&chroma_dc_coeff_token_len [0], 1, 1,
|
|
&chroma_dc_coeff_token_bits[0], 1, 1);
|
|
|
|
for(i=0; i<4; i++){
|
|
init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17,
|
|
&coeff_token_len [i][0], 1, 1,
|
|
&coeff_token_bits[i][0], 1, 1);
|
|
}
|
|
|
|
for(i=0; i<3; i++){
|
|
init_vlc(&chroma_dc_total_zeros_vlc[i], CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
|
|
&chroma_dc_total_zeros_len [i][0], 1, 1,
|
|
&chroma_dc_total_zeros_bits[i][0], 1, 1);
|
|
}
|
|
for(i=0; i<15; i++){
|
|
init_vlc(&total_zeros_vlc[i], TOTAL_ZEROS_VLC_BITS, 16,
|
|
&total_zeros_len [i][0], 1, 1,
|
|
&total_zeros_bits[i][0], 1, 1);
|
|
}
|
|
|
|
for(i=0; i<6; i++){
|
|
init_vlc(&run_vlc[i], RUN_VLC_BITS, 7,
|
|
&run_len [i][0], 1, 1,
|
|
&run_bits[i][0], 1, 1);
|
|
}
|
|
init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
|
|
&run_len [6][0], 1, 1,
|
|
&run_bits[6][0], 1, 1);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the intra prediction function pointers.
|
|
*/
|
|
static void init_pred_ptrs(H264Context *h){
|
|
// MpegEncContext * const s = &h->s;
|
|
|
|
h->pred4x4[VERT_PRED ]= pred4x4_vertical_c;
|
|
h->pred4x4[HOR_PRED ]= pred4x4_horizontal_c;
|
|
h->pred4x4[DC_PRED ]= pred4x4_dc_c;
|
|
h->pred4x4[DIAG_DOWN_LEFT_PRED ]= pred4x4_down_left_c;
|
|
h->pred4x4[DIAG_DOWN_RIGHT_PRED]= pred4x4_down_right_c;
|
|
h->pred4x4[VERT_RIGHT_PRED ]= pred4x4_vertical_right_c;
|
|
h->pred4x4[HOR_DOWN_PRED ]= pred4x4_horizontal_down_c;
|
|
h->pred4x4[VERT_LEFT_PRED ]= pred4x4_vertical_left_c;
|
|
h->pred4x4[HOR_UP_PRED ]= pred4x4_horizontal_up_c;
|
|
h->pred4x4[LEFT_DC_PRED ]= pred4x4_left_dc_c;
|
|
h->pred4x4[TOP_DC_PRED ]= pred4x4_top_dc_c;
|
|
h->pred4x4[DC_128_PRED ]= pred4x4_128_dc_c;
|
|
|
|
h->pred8x8[DC_PRED8x8 ]= pred8x8_dc_c;
|
|
h->pred8x8[VERT_PRED8x8 ]= pred8x8_vertical_c;
|
|
h->pred8x8[HOR_PRED8x8 ]= pred8x8_horizontal_c;
|
|
h->pred8x8[PLANE_PRED8x8 ]= pred8x8_plane_c;
|
|
h->pred8x8[LEFT_DC_PRED8x8]= pred8x8_left_dc_c;
|
|
h->pred8x8[TOP_DC_PRED8x8 ]= pred8x8_top_dc_c;
|
|
h->pred8x8[DC_128_PRED8x8 ]= pred8x8_128_dc_c;
|
|
|
|
h->pred16x16[DC_PRED8x8 ]= pred16x16_dc_c;
|
|
h->pred16x16[VERT_PRED8x8 ]= pred16x16_vertical_c;
|
|
h->pred16x16[HOR_PRED8x8 ]= pred16x16_horizontal_c;
|
|
h->pred16x16[PLANE_PRED8x8 ]= pred16x16_plane_c;
|
|
h->pred16x16[LEFT_DC_PRED8x8]= pred16x16_left_dc_c;
|
|
h->pred16x16[TOP_DC_PRED8x8 ]= pred16x16_top_dc_c;
|
|
h->pred16x16[DC_128_PRED8x8 ]= pred16x16_128_dc_c;
|
|
}
|
|
|
|
//FIXME factorize
|
|
#define CHECKED_ALLOCZ(p, size)\
|
|
{\
|
|
p= av_mallocz(size);\
|
|
if(p==NULL){\
|
|
perror("malloc");\
|
|
goto fail;\
|
|
}\
|
|
}
|
|
|
|
static void free_tables(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
|
|
av_freep(&h->intra4x4_pred_mode);
|
|
av_freep(&h->non_zero_count);
|
|
av_freep(&h->slice_table_base);
|
|
h->slice_table= NULL;
|
|
|
|
av_freep(&h->mb2b_xy);
|
|
av_freep(&h->mb2b8_xy);
|
|
}
|
|
|
|
/**
|
|
* allocates tables.
|
|
* needs widzh/height
|
|
*/
|
|
static int alloc_tables(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int big_mb_num= h->mb_stride * (s->mb_height+1);
|
|
int x,y;
|
|
|
|
CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t))
|
|
CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t))
|
|
CHECKED_ALLOCZ(h->slice_table_base , big_mb_num * sizeof(uint8_t))
|
|
|
|
memset(h->slice_table_base, -1, big_mb_num * sizeof(uint8_t));
|
|
h->slice_table= h->slice_table_base + h->mb_stride + 1;
|
|
|
|
CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint16_t));
|
|
CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint16_t));
|
|
for(y=0; y<s->mb_height; y++){
|
|
for(x=0; x<s->mb_width; x++){
|
|
const int mb_xy= x + y*h->mb_stride;
|
|
const int b_xy = 4*x + 4*y*h->b_stride;
|
|
const int b8_xy= 2*x + 2*y*h->b8_stride;
|
|
|
|
h->mb2b_xy [mb_xy]= b_xy;
|
|
h->mb2b8_xy[mb_xy]= b8_xy;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
free_tables(h);
|
|
return -1;
|
|
}
|
|
|
|
static void common_init(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int i;
|
|
|
|
s->width = s->avctx->width;
|
|
s->height = s->avctx->height;
|
|
s->codec_id= s->avctx->codec->id;
|
|
|
|
init_pred_ptrs(h);
|
|
|
|
s->decode=1; //FIXME
|
|
}
|
|
|
|
static int decode_init(AVCodecContext *avctx){
|
|
H264Context *h= avctx->priv_data;
|
|
MpegEncContext * const s = &h->s;
|
|
|
|
s->avctx = avctx;
|
|
common_init(h);
|
|
|
|
s->out_format = FMT_H264;
|
|
s->workaround_bugs= avctx->workaround_bugs;
|
|
|
|
// set defaults
|
|
s->progressive_sequence=1;
|
|
// s->decode_mb= ff_h263_decode_mb;
|
|
s->low_delay= 1;
|
|
avctx->pix_fmt= PIX_FMT_YUV420P;
|
|
|
|
decode_init_vlc(h);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void frame_start(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int i;
|
|
|
|
MPV_frame_start(s, s->avctx);
|
|
ff_er_frame_start(s);
|
|
h->mmco_index=0;
|
|
|
|
assert(s->linesize && s->uvlinesize);
|
|
|
|
for(i=0; i<16; i++){
|
|
h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
|
|
h->chroma_subblock_offset[i]= 2*((scan8[i] - scan8[0])&7) + 2*s->uvlinesize*((scan8[i] - scan8[0])>>3);
|
|
}
|
|
for(i=0; i<4; i++){
|
|
h->block_offset[16+i]=
|
|
h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
|
|
}
|
|
|
|
// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
|
|
}
|
|
|
|
static void hl_decode_mb(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_x= s->mb_x;
|
|
const int mb_y= s->mb_y;
|
|
const int mb_xy= mb_x + mb_y*h->mb_stride;
|
|
const int mb_type= s->current_picture.mb_type[mb_xy];
|
|
uint8_t *dest_y, *dest_cb, *dest_cr;
|
|
int linesize, uvlinesize /*dct_offset*/;
|
|
int i;
|
|
|
|
if(!s->decode)
|
|
return;
|
|
|
|
if(s->mb_skiped){
|
|
}
|
|
|
|
dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
|
|
dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
|
|
dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
|
|
|
|
if (h->mb_field_decoding_flag) {
|
|
linesize = s->linesize * 2;
|
|
uvlinesize = s->uvlinesize * 2;
|
|
if(mb_y&1){ //FIXME move out of this func?
|
|
dest_y -= s->linesize*15;
|
|
dest_cb-= s->linesize*7;
|
|
dest_cr-= s->linesize*7;
|
|
}
|
|
} else {
|
|
linesize = s->linesize;
|
|
uvlinesize = s->uvlinesize;
|
|
// dct_offset = s->linesize * 16;
|
|
}
|
|
|
|
if(IS_INTRA(mb_type)){
|
|
if(!(s->flags&CODEC_FLAG_GRAY)){
|
|
h->pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
|
|
h->pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
|
|
}
|
|
|
|
if(IS_INTRA4x4(mb_type)){
|
|
if(!s->encoding){
|
|
for(i=0; i<16; i++){
|
|
uint8_t * const ptr= dest_y + h->block_offset[i];
|
|
uint8_t *topright= ptr + 4 - linesize;
|
|
const int topright_avail= (h->topright_samples_available<<i)&0x8000;
|
|
const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
|
|
int tr;
|
|
|
|
if(!topright_avail){
|
|
tr= ptr[3 - linesize]*0x01010101;
|
|
topright= (uint8_t*) &tr;
|
|
}
|
|
|
|
h->pred4x4[ dir ](ptr, topright, linesize);
|
|
if(h->non_zero_count_cache[ scan8[i] ])
|
|
h264_add_idct_c(ptr, h->mb + i*16, linesize);
|
|
}
|
|
}
|
|
}else{
|
|
h->pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
|
|
h264_luma_dc_dequant_idct_c(h->mb, s->qscale);
|
|
}
|
|
}else{
|
|
hl_motion(h, dest_y, dest_cb, dest_cr,
|
|
s->dsp.put_h264_qpel_pixels_tab, s->dsp.put_h264_chroma_pixels_tab,
|
|
s->dsp.avg_h264_qpel_pixels_tab, s->dsp.avg_h264_chroma_pixels_tab);
|
|
}
|
|
|
|
|
|
if(!IS_INTRA4x4(mb_type)){
|
|
for(i=0; i<16; i++){
|
|
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
|
|
uint8_t * const ptr= dest_y + h->block_offset[i];
|
|
h264_add_idct_c(ptr, h->mb + i*16, linesize);
|
|
}
|
|
}
|
|
}
|
|
|
|
if(!(s->flags&CODEC_FLAG_GRAY)){
|
|
chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp);
|
|
chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp);
|
|
for(i=16; i<16+4; i++){
|
|
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
|
|
uint8_t * const ptr= dest_cb + h->block_offset[i];
|
|
h264_add_idct_c(ptr, h->mb + i*16, uvlinesize);
|
|
}
|
|
}
|
|
for(i=20; i<20+4; i++){
|
|
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
|
|
uint8_t * const ptr= dest_cr + h->block_offset[i];
|
|
h264_add_idct_c(ptr, h->mb + i*16, uvlinesize);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void decode_mb_cabac(H264Context *h){
|
|
// MpegEncContext * const s = &h->s;
|
|
}
|
|
|
|
/**
|
|
* fills the default_ref_list.
|
|
*/
|
|
static int fill_default_ref_list(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int i;
|
|
Picture sorted_short_ref[16];
|
|
|
|
if(h->slice_type==B_TYPE){
|
|
int out_i;
|
|
int limit= -1;
|
|
|
|
for(out_i=0; out_i<h->short_ref_count; out_i++){
|
|
int best_i=-1;
|
|
int best_poc=-1;
|
|
|
|
for(i=0; i<h->short_ref_count; i++){
|
|
const int poc= h->short_ref[i]->poc;
|
|
if(poc > limit && poc < best_poc){
|
|
best_poc= poc;
|
|
best_i= i;
|
|
}
|
|
}
|
|
|
|
assert(best_i != -1);
|
|
|
|
limit= best_poc;
|
|
sorted_short_ref[out_i]= *h->short_ref[best_i];
|
|
}
|
|
}
|
|
|
|
if(s->picture_structure == PICT_FRAME){
|
|
if(h->slice_type==B_TYPE){
|
|
const int current_poc= s->current_picture_ptr->poc;
|
|
int list;
|
|
|
|
for(list=0; list<2; list++){
|
|
int index=0;
|
|
|
|
for(i=0; i<h->short_ref_count && index < h->ref_count[list]; i++){
|
|
const int i2= list ? h->short_ref_count - i - 1 : i;
|
|
const int poc= sorted_short_ref[i2].poc;
|
|
|
|
if(sorted_short_ref[i2].reference != 3) continue; //FIXME refernce field shit
|
|
|
|
if((list==1 && poc > current_poc) || (list==0 && poc < current_poc)){
|
|
h->default_ref_list[list][index ]= sorted_short_ref[i2];
|
|
h->default_ref_list[list][index++].pic_id= sorted_short_ref[i2].frame_num;
|
|
}
|
|
}
|
|
|
|
for(i=0; i<h->long_ref_count && index < h->ref_count[ list ]; i++){
|
|
if(h->long_ref[i]->reference != 3) continue;
|
|
|
|
h->default_ref_list[ list ][index ]= *h->long_ref[i];
|
|
h->default_ref_list[ list ][index++].pic_id= i;;
|
|
}
|
|
|
|
if(h->long_ref_count > 1 && h->short_ref_count==0){
|
|
Picture temp= h->default_ref_list[1][0];
|
|
h->default_ref_list[1][0] = h->default_ref_list[1][1];
|
|
h->default_ref_list[1][0] = temp;
|
|
}
|
|
|
|
if(index < h->ref_count[ list ])
|
|
memset(&h->default_ref_list[list][index], 0, sizeof(Picture)*(h->ref_count[ list ] - index));
|
|
}
|
|
}else{
|
|
int index=0;
|
|
for(i=0; i<h->short_ref_count && index < h->ref_count[0]; i++){
|
|
if(h->short_ref[i]->reference != 3) continue; //FIXME refernce field shit
|
|
h->default_ref_list[0][index ]= *h->short_ref[i];
|
|
h->default_ref_list[0][index++].pic_id= h->short_ref[i]->frame_num;
|
|
}
|
|
for(i=0; i<h->long_ref_count && index < h->ref_count[0]; i++){
|
|
if(h->long_ref[i]->reference != 3) continue;
|
|
h->default_ref_list[0][index ]= *h->long_ref[i];
|
|
h->default_ref_list[0][index++].pic_id= i;;
|
|
}
|
|
if(index < h->ref_count[0])
|
|
memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index));
|
|
}
|
|
}else{ //FIELD
|
|
if(h->slice_type==B_TYPE){
|
|
}else{
|
|
//FIXME second field balh
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int decode_ref_pic_list_reordering(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int list;
|
|
|
|
if(h->slice_type==I_TYPE || h->slice_type==SI_TYPE) return 0; //FIXME move beofre func
|
|
|
|
for(list=0; list<2; list++){
|
|
memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
|
|
|
|
if(get_bits1(&s->gb)){
|
|
int pred= h->curr_pic_num;
|
|
int index;
|
|
|
|
for(index=0; ; index++){
|
|
int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb);
|
|
int pic_id;
|
|
int i;
|
|
|
|
|
|
if(index >= h->ref_count[list]){
|
|
fprintf(stderr, "reference count overflow\n");
|
|
return -1;
|
|
}
|
|
|
|
if(reordering_of_pic_nums_idc<3){
|
|
if(reordering_of_pic_nums_idc<2){
|
|
const int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
|
|
|
|
if(abs_diff_pic_num >= h->max_pic_num){
|
|
fprintf(stderr, "abs_diff_pic_num overflow\n");
|
|
return -1;
|
|
}
|
|
|
|
if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
|
|
else pred+= abs_diff_pic_num;
|
|
pred &= h->max_pic_num - 1;
|
|
|
|
for(i= h->ref_count[list]-1; i>=index; i--){
|
|
if(h->ref_list[list][i].pic_id == pred && h->ref_list[list][i].long_ref==0)
|
|
break;
|
|
}
|
|
}else{
|
|
pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
|
|
|
|
for(i= h->ref_count[list]-1; i>=index; i--){
|
|
if(h->ref_list[list][i].pic_id == pic_id && h->ref_list[list][i].long_ref==1)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(i < index){
|
|
fprintf(stderr, "reference picture missing during reorder\n");
|
|
memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
|
|
}else if(i > index){
|
|
Picture tmp= h->ref_list[list][i];
|
|
for(; i>index; i--){
|
|
h->ref_list[list][i]= h->ref_list[list][i-1];
|
|
}
|
|
h->ref_list[list][index]= tmp;
|
|
}
|
|
}else if(reordering_of_pic_nums_idc==3)
|
|
break;
|
|
else{
|
|
fprintf(stderr, "illegal reordering_of_pic_nums_idc\n");
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(h->slice_type!=B_TYPE) break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int pred_weight_table(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int list, i;
|
|
|
|
h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
|
|
h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
|
|
|
|
for(list=0; list<2; list++){
|
|
for(i=0; i<h->ref_count[list]; i++){
|
|
int luma_weight_flag, chroma_weight_flag;
|
|
|
|
luma_weight_flag= get_bits1(&s->gb);
|
|
if(luma_weight_flag){
|
|
h->luma_weight[list][i]= get_se_golomb(&s->gb);
|
|
h->luma_offset[list][i]= get_se_golomb(&s->gb);
|
|
}
|
|
|
|
chroma_weight_flag= get_bits1(&s->gb);
|
|
if(chroma_weight_flag){
|
|
int j;
|
|
for(j=0; j<2; j++){
|
|
h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
|
|
h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
|
|
}
|
|
}
|
|
}
|
|
if(h->slice_type != B_TYPE) break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* instantaneos decoder refresh.
|
|
*/
|
|
static void idr(H264Context *h){
|
|
int i;
|
|
|
|
for(i=0; i<h->long_ref_count; i++){
|
|
h->long_ref[i]->reference=0;
|
|
h->long_ref[i]= NULL;
|
|
}
|
|
h->long_ref_count=0;
|
|
|
|
for(i=0; i<h->short_ref_count; i++){
|
|
h->short_ref[i]->reference=0;
|
|
h->short_ref[i]= NULL;
|
|
}
|
|
h->short_ref_count=0;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @return the removed picture or NULL if an error occures
|
|
*/
|
|
static Picture * remove_short(H264Context *h, int frame_num){
|
|
MpegEncContext * const s = &h->s;
|
|
int i;
|
|
|
|
if(s->avctx->debug&FF_DEBUG_MMCO)
|
|
printf("remove short %d count %d\n", frame_num, h->short_ref_count);
|
|
|
|
for(i=0; i<h->short_ref_count; i++){
|
|
Picture *pic= h->short_ref[i];
|
|
if(s->avctx->debug&FF_DEBUG_MMCO)
|
|
printf("%d %d %X\n", i, pic->frame_num, (int)pic);
|
|
if(pic->frame_num == frame_num){
|
|
h->short_ref[i]= NULL;
|
|
memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i - 1)*sizeof(Picture*));
|
|
h->short_ref_count--;
|
|
return pic;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @return the removed picture or NULL if an error occures
|
|
*/
|
|
static Picture * remove_long(H264Context *h, int i){
|
|
Picture *pic;
|
|
|
|
if(i >= h->long_ref_count) return NULL;
|
|
pic= h->long_ref[i];
|
|
if(pic==NULL) return NULL;
|
|
|
|
h->long_ref[i]= NULL;
|
|
memmove(&h->long_ref[i], &h->long_ref[i+1], (h->long_ref_count - i - 1)*sizeof(Picture*));
|
|
h->long_ref_count--;
|
|
|
|
return pic;
|
|
}
|
|
|
|
/**
|
|
* Executes the reference picture marking (memory management control operations).
|
|
*/
|
|
static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
|
|
MpegEncContext * const s = &h->s;
|
|
int i;
|
|
int current_is_long=0;
|
|
Picture *pic;
|
|
|
|
if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
|
|
printf("no mmco here\n");
|
|
|
|
for(i=0; i<mmco_count; i++){
|
|
if(s->avctx->debug&FF_DEBUG_MMCO)
|
|
printf("mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_frame_num, h->mmco[i].long_index);
|
|
|
|
switch(mmco[i].opcode){
|
|
case MMCO_SHORT2UNUSED:
|
|
pic= remove_short(h, mmco[i].short_frame_num);
|
|
if(pic==NULL) return -1;
|
|
pic->reference= 0;
|
|
break;
|
|
case MMCO_SHORT2LONG:
|
|
pic= remove_long(h, mmco[i].long_index);
|
|
if(pic) pic->reference=0;
|
|
|
|
h->long_ref[ mmco[i].long_index ]= remove_short(h, mmco[i].short_frame_num);
|
|
h->long_ref[ mmco[i].long_index ]->long_ref=1;
|
|
break;
|
|
case MMCO_LONG2UNUSED:
|
|
pic= remove_long(h, mmco[i].long_index);
|
|
if(pic==NULL) return -1;
|
|
pic->reference= 0;
|
|
break;
|
|
case MMCO_LONG:
|
|
pic= remove_long(h, mmco[i].long_index);
|
|
if(pic) pic->reference=0;
|
|
|
|
h->long_ref[ mmco[i].long_index ]= s->current_picture_ptr;
|
|
h->long_ref[ mmco[i].long_index ]->long_ref=1;
|
|
h->long_ref_count++;
|
|
|
|
current_is_long=1;
|
|
break;
|
|
case MMCO_SET_MAX_LONG:
|
|
assert(mmco[i].long_index <= 16);
|
|
while(mmco[i].long_index < h->long_ref_count){
|
|
pic= remove_long(h, mmco[i].long_index);
|
|
pic->reference=0;
|
|
}
|
|
while(mmco[i].long_index > h->long_ref_count){
|
|
h->long_ref[ h->long_ref_count++ ]= NULL;
|
|
}
|
|
break;
|
|
case MMCO_RESET:
|
|
while(h->short_ref_count){
|
|
pic= remove_short(h, h->short_ref[0]->frame_num);
|
|
pic->reference=0;
|
|
}
|
|
while(h->long_ref_count){
|
|
pic= remove_long(h, h->long_ref_count-1);
|
|
pic->reference=0;
|
|
}
|
|
break;
|
|
default: assert(0);
|
|
}
|
|
}
|
|
|
|
if(!current_is_long){
|
|
pic= remove_short(h, s->current_picture_ptr->frame_num);
|
|
if(pic){
|
|
pic->reference=0;
|
|
fprintf(stderr, "illegal short term buffer state detected\n");
|
|
}
|
|
|
|
if(h->short_ref_count)
|
|
memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*));
|
|
|
|
h->short_ref[0]= s->current_picture_ptr;
|
|
h->short_ref[0]->long_ref=0;
|
|
h->short_ref_count++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode_ref_pic_marking(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int i;
|
|
|
|
if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
|
|
s->broken_link= get_bits1(&s->gb) -1;
|
|
h->mmco[0].long_index= get_bits1(&s->gb) - 1; // current_long_term_idx
|
|
if(h->mmco[0].long_index == -1)
|
|
h->mmco_index= 0;
|
|
else{
|
|
h->mmco[0].opcode= MMCO_LONG;
|
|
h->mmco_index= 1;
|
|
}
|
|
}else{
|
|
if(get_bits1(&s->gb)){ // adaptive_ref_pic_marking_mode_flag
|
|
for(i= h->mmco_index; i<MAX_MMCO_COUNT; i++) {
|
|
MMCOOpcode opcode= get_ue_golomb(&s->gb);;
|
|
|
|
h->mmco[i].opcode= opcode;
|
|
if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
|
|
h->mmco[i].short_frame_num= (h->frame_num - get_ue_golomb(&s->gb) - 1) & ((1<<h->sps.log2_max_frame_num)-1); //FIXME fields
|
|
/* if(h->mmco[i].short_frame_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_frame_num ] == NULL){
|
|
fprintf(stderr, "illegal short ref in memory management control operation %d\n", mmco);
|
|
return -1;
|
|
}*/
|
|
}
|
|
if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
|
|
h->mmco[i].long_index= get_ue_golomb(&s->gb);
|
|
if(/*h->mmco[i].long_index >= h->long_ref_count || h->long_ref[ h->mmco[i].long_index ] == NULL*/ h->mmco[i].long_index >= 16){
|
|
fprintf(stderr, "illegal long ref in memory management control operation %d\n", opcode);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if(opcode > MMCO_LONG){
|
|
fprintf(stderr, "illegal memory management control operation %d\n", opcode);
|
|
return -1;
|
|
}
|
|
}
|
|
h->mmco_index= i;
|
|
}else{
|
|
assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
|
|
|
|
if(h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count){ //FIXME fields
|
|
h->mmco[0].opcode= MMCO_SHORT2UNUSED;
|
|
h->mmco[0].short_frame_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
|
|
h->mmco_index= 1;
|
|
}else
|
|
h->mmco_index= 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_poc(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int max_frame_num= 1<<h->sps.log2_max_frame_num;
|
|
int field_poc[2];
|
|
|
|
if(h->nal_unit_type == NAL_IDR_SLICE){
|
|
h->frame_num_offset= 0;
|
|
}else{
|
|
if(h->frame_num < h->prev_frame_num)
|
|
h->frame_num_offset= h->prev_frame_num_offset + max_frame_num;
|
|
else
|
|
h->frame_num_offset= h->prev_frame_num_offset;
|
|
}
|
|
|
|
if(h->sps.poc_type==0){
|
|
const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
|
|
|
|
if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
|
|
h->poc_msb = h->prev_poc_msb + max_poc_lsb;
|
|
else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
|
|
h->poc_msb = h->prev_poc_msb - max_poc_lsb;
|
|
else
|
|
h->poc_msb = h->prev_poc_msb;
|
|
//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
|
|
field_poc[0] =
|
|
field_poc[1] = h->poc_msb + h->poc_lsb;
|
|
if(s->picture_structure == PICT_FRAME)
|
|
field_poc[1] += h->delta_poc_bottom;
|
|
}else if(h->sps.poc_type==1){
|
|
int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
|
|
int i;
|
|
|
|
if(h->sps.poc_cycle_length != 0)
|
|
abs_frame_num = h->frame_num_offset + h->frame_num;
|
|
else
|
|
abs_frame_num = 0;
|
|
|
|
if(h->nal_ref_idc==0 && abs_frame_num > 0)
|
|
abs_frame_num--;
|
|
|
|
expected_delta_per_poc_cycle = 0;
|
|
for(i=0; i < h->sps.poc_cycle_length; i++)
|
|
expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
|
|
|
|
if(abs_frame_num > 0){
|
|
int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
|
|
int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
|
|
|
|
expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
|
|
for(i = 0; i <= frame_num_in_poc_cycle; i++)
|
|
expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
|
|
} else
|
|
expectedpoc = 0;
|
|
|
|
if(h->nal_ref_idc == 0)
|
|
expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
|
|
|
|
field_poc[0] = expectedpoc + h->delta_poc[0];
|
|
field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
|
|
|
|
if(s->picture_structure == PICT_FRAME)
|
|
field_poc[1] += h->delta_poc[1];
|
|
}else{
|
|
int poc;
|
|
if(h->nal_unit_type == NAL_IDR_SLICE){
|
|
poc= 0;
|
|
}else{
|
|
if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num);
|
|
else poc= 2*(h->frame_num_offset + h->frame_num) - 1;
|
|
}
|
|
field_poc[0]= poc;
|
|
field_poc[1]= poc;
|
|
}
|
|
|
|
if(s->picture_structure != PICT_BOTTOM_FIELD)
|
|
s->current_picture_ptr->field_poc[0]= field_poc[0];
|
|
if(s->picture_structure != PICT_TOP_FIELD)
|
|
s->current_picture_ptr->field_poc[1]= field_poc[1];
|
|
if(s->picture_structure == PICT_FRAME) // FIXME field pix?
|
|
s->current_picture_ptr->poc= FFMIN(field_poc[0], field_poc[1]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* decodes a slice header.
|
|
* this will allso call MPV_common_init() and frame_start() as needed
|
|
*/
|
|
static int decode_slice_header(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int first_mb_in_slice, pps_id;
|
|
int num_ref_idx_active_override_flag;
|
|
static const uint8_t slice_type_map[5]= {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE};
|
|
float new_aspect;
|
|
|
|
s->current_picture.reference= h->nal_ref_idc != 0;
|
|
|
|
first_mb_in_slice= get_ue_golomb(&s->gb);
|
|
|
|
h->slice_type= get_ue_golomb(&s->gb);
|
|
if(h->slice_type > 9){
|
|
fprintf(stderr, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
|
|
}
|
|
if(h->slice_type > 4){
|
|
h->slice_type -= 5;
|
|
h->slice_type_fixed=1;
|
|
}else
|
|
h->slice_type_fixed=0;
|
|
|
|
h->slice_type= slice_type_map[ h->slice_type ];
|
|
|
|
s->pict_type= h->slice_type; // to make a few old func happy, its wrong though
|
|
|
|
pps_id= get_ue_golomb(&s->gb);
|
|
if(pps_id>255){
|
|
fprintf(stderr, "pps_id out of range\n");
|
|
return -1;
|
|
}
|
|
h->pps= h->pps_buffer[pps_id];
|
|
if(h->pps.slice_group_count == 0){
|
|
fprintf(stderr, "non existing PPS referenced\n");
|
|
return -1;
|
|
}
|
|
|
|
h->sps= h->sps_buffer[ h->pps.sps_id ];
|
|
if(h->sps.log2_max_frame_num == 0){
|
|
fprintf(stderr, "non existing SPS referenced\n");
|
|
return -1;
|
|
}
|
|
|
|
s->mb_width= h->sps.mb_width;
|
|
s->mb_height= h->sps.mb_height;
|
|
h->mb_stride= s->mb_width + 1;
|
|
|
|
h->b_stride= s->mb_width*4;
|
|
h->b8_stride= s->mb_width*2;
|
|
|
|
s->mb_x = first_mb_in_slice % s->mb_width;
|
|
s->mb_y = first_mb_in_slice / s->mb_width; //FIXME AFFW
|
|
|
|
s->width = 16*s->mb_width - 2*(h->pps.crop_left + h->pps.crop_right );
|
|
if(h->sps.frame_mbs_only_flag)
|
|
s->height= 16*s->mb_height - 2*(h->pps.crop_top + h->pps.crop_bottom);
|
|
else
|
|
s->height= 16*s->mb_height - 4*(h->pps.crop_top + h->pps.crop_bottom); //FIXME recheck
|
|
|
|
if(h->pps.crop_left || h->pps.crop_top){
|
|
fprintf(stderr, "insane croping not completly supported, this could look slightly wrong ...\n");
|
|
}
|
|
|
|
if(s->aspected_height) //FIXME emms at end of slice ?
|
|
new_aspect= h->sps.sar_width*s->width / (float)(s->height*h->sps.sar_height);
|
|
else
|
|
new_aspect=0;
|
|
|
|
if (s->context_initialized
|
|
&& ( s->width != s->avctx->width || s->height != s->avctx->height
|
|
|| ABS(new_aspect - s->avctx->aspect_ratio) > 0.001)) {
|
|
free_tables(h);
|
|
MPV_common_end(s);
|
|
}
|
|
if (!s->context_initialized) {
|
|
if (MPV_common_init(s) < 0)
|
|
return -1;
|
|
|
|
alloc_tables(h);
|
|
|
|
s->avctx->width = s->width;
|
|
s->avctx->height = s->height;
|
|
s->avctx->aspect_ratio= new_aspect;
|
|
}
|
|
|
|
if(first_mb_in_slice == 0){
|
|
frame_start(h);
|
|
}
|
|
|
|
s->current_picture_ptr->frame_num= //FIXME frame_num cleanup
|
|
h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
|
|
|
|
if(h->sps.frame_mbs_only_flag){
|
|
s->picture_structure= PICT_FRAME;
|
|
}else{
|
|
if(get_bits1(&s->gb)) //field_pic_flag
|
|
s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
|
|
else
|
|
s->picture_structure= PICT_FRAME;
|
|
}
|
|
|
|
if(s->picture_structure==PICT_FRAME){
|
|
h->curr_pic_num= h->frame_num;
|
|
h->max_pic_num= 1<< h->sps.log2_max_frame_num;
|
|
}else{
|
|
h->curr_pic_num= 2*h->frame_num;
|
|
h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
|
|
}
|
|
|
|
if(h->nal_unit_type == NAL_IDR_SLICE){
|
|
int idr_pic_id= get_ue_golomb(&s->gb);
|
|
}
|
|
|
|
if(h->sps.poc_type==0){
|
|
h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
|
|
|
|
if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
|
|
h->delta_poc_bottom= get_se_golomb(&s->gb);
|
|
}
|
|
}
|
|
|
|
if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
|
|
h->delta_poc[0]= get_se_golomb(&s->gb);
|
|
|
|
if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
|
|
h->delta_poc[1]= get_se_golomb(&s->gb);
|
|
}
|
|
|
|
init_poc(h);
|
|
|
|
if(h->pps.redundant_pic_cnt_present){
|
|
h->redundant_pic_count= get_ue_golomb(&s->gb);
|
|
}
|
|
|
|
//set defaults, might be overriden a few line later
|
|
h->ref_count[0]= h->pps.ref_count[0];
|
|
h->ref_count[1]= h->pps.ref_count[1];
|
|
|
|
if(h->slice_type == P_TYPE || h->slice_type == SP_TYPE || h->slice_type == B_TYPE){
|
|
if(h->slice_type == B_TYPE){
|
|
h->direct_spatial_mv_pred= get_bits1(&s->gb);
|
|
}
|
|
num_ref_idx_active_override_flag= get_bits1(&s->gb);
|
|
|
|
if(num_ref_idx_active_override_flag){
|
|
h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
|
|
if(h->slice_type==B_TYPE)
|
|
h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
|
|
|
|
if(h->ref_count[0] > 32 || h->ref_count[1] > 32){
|
|
fprintf(stderr, "reference overflow\n");
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(first_mb_in_slice == 0){
|
|
fill_default_ref_list(h);
|
|
}
|
|
|
|
decode_ref_pic_list_reordering(h);
|
|
|
|
if( (h->pps.weighted_pred && (h->slice_type == P_TYPE || h->slice_type == SP_TYPE ))
|
|
|| (h->pps.weighted_bipred_idc==1 && h->slice_type==B_TYPE ) )
|
|
pred_weight_table(h);
|
|
|
|
if(s->current_picture.reference)
|
|
decode_ref_pic_marking(h);
|
|
//FIXME CABAC stuff
|
|
|
|
s->qscale = h->pps.init_qp + get_se_golomb(&s->gb); //slice_qp_delta
|
|
//FIXME qscale / qp ... stuff
|
|
if(h->slice_type == SP_TYPE){
|
|
int sp_for_switch_flag= get_bits1(&s->gb);
|
|
}
|
|
if(h->slice_type==SP_TYPE || h->slice_type == SI_TYPE){
|
|
int slice_qs_delta= get_se_golomb(&s->gb);
|
|
}
|
|
|
|
if( h->pps.deblocking_filter_parameters_present ) {
|
|
h->disable_deblocking_filter_idc= get_ue_golomb(&s->gb);
|
|
if( h->disable_deblocking_filter_idc != 1 ) {
|
|
h->slice_alpha_c0_offset_div2= get_se_golomb(&s->gb);
|
|
h->slice_beta_offset_div2= get_se_golomb(&s->gb);
|
|
}
|
|
}else
|
|
h->disable_deblocking_filter_idc= 0;
|
|
|
|
#if 0 //FMO
|
|
if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
|
|
slice_group_change_cycle= get_bits(&s->gb, ?);
|
|
#endif
|
|
|
|
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
|
|
printf("mb:%d %c pps:%d frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d\n",
|
|
first_mb_in_slice,
|
|
ff_get_pict_type_char(h->slice_type),
|
|
pps_id, h->frame_num,
|
|
s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
|
|
h->ref_count[0], h->ref_count[1],
|
|
s->qscale,
|
|
h->disable_deblocking_filter_idc
|
|
);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
static inline int get_level_prefix(GetBitContext *gb){
|
|
unsigned int buf;
|
|
int log;
|
|
|
|
OPEN_READER(re, gb);
|
|
UPDATE_CACHE(re, gb);
|
|
buf=GET_CACHE(re, gb);
|
|
|
|
log= 32 - av_log2(buf);
|
|
#ifdef TRACE
|
|
print_bin(buf>>(32-log), log);
|
|
printf("%5d %2d %3d lpr @%5d in %s get_level_prefix\n", buf>>(32-log), log, log-1, get_bits_count(gb), __FILE__);
|
|
#endif
|
|
|
|
LAST_SKIP_BITS(re, gb, log);
|
|
CLOSE_READER(re, gb);
|
|
|
|
return log-1;
|
|
}
|
|
|
|
/**
|
|
* decodes a residual block.
|
|
* @param n block index
|
|
* @param scantable scantable
|
|
* @param max_coeff number of coefficients in the block
|
|
* @return <0 if an error occured
|
|
*/
|
|
static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, int qp, int max_coeff){
|
|
MpegEncContext * const s = &h->s;
|
|
const uint16_t *qmul= dequant_coeff[qp];
|
|
static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3};
|
|
int level[16], run[16];
|
|
int suffix_length, zeros_left, coeff_num, coeff_token, total_coeff, i, trailing_ones;
|
|
|
|
//FIXME put trailing_onex into the context
|
|
|
|
if(n == CHROMA_DC_BLOCK_INDEX){
|
|
coeff_token= get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1);
|
|
total_coeff= coeff_token>>2;
|
|
}else{
|
|
if(n == LUMA_DC_BLOCK_INDEX){
|
|
total_coeff= pred_non_zero_count(h, 0);
|
|
coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
|
|
total_coeff= coeff_token>>2;
|
|
}else{
|
|
total_coeff= pred_non_zero_count(h, n);
|
|
coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
|
|
total_coeff= coeff_token>>2;
|
|
h->non_zero_count_cache[ scan8[n] ]= total_coeff;
|
|
}
|
|
}
|
|
|
|
//FIXME set last_non_zero?
|
|
|
|
if(total_coeff==0)
|
|
return 0;
|
|
|
|
trailing_ones= coeff_token&3;
|
|
tprintf("trailing:%d, total:%d\n", trailing_ones, total_coeff);
|
|
assert(total_coeff<=16);
|
|
|
|
for(i=0; i<trailing_ones; i++){
|
|
level[i]= 1 - 2*get_bits1(gb);
|
|
}
|
|
|
|
suffix_length= total_coeff > 10 && trailing_ones < 3;
|
|
|
|
for(; i<total_coeff; i++){
|
|
const int prefix= get_level_prefix(gb);
|
|
int level_code, mask;
|
|
|
|
if(prefix<14){ //FIXME try to build a large unified VLC table for all this
|
|
if(suffix_length)
|
|
level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
|
|
else
|
|
level_code= (prefix<<suffix_length); //part
|
|
}else if(prefix==14){
|
|
if(suffix_length)
|
|
level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
|
|
else
|
|
level_code= prefix + get_bits(gb, 4); //part
|
|
}else if(prefix==15){
|
|
level_code= (prefix<<suffix_length) + get_bits(gb, 12); //part
|
|
if(suffix_length==0) level_code+=15; //FIXME doesnt make (much)sense
|
|
}else{
|
|
fprintf(stderr, "prefix too large at %d %d\n", s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
|
|
if(i==trailing_ones && i<3) level_code+= 2; //FIXME split first iteration
|
|
|
|
mask= -(level_code&1);
|
|
level[i]= (((2+level_code)>>1) ^ mask) - mask;
|
|
|
|
if(suffix_length==0) suffix_length=1; //FIXME split first iteration
|
|
|
|
#if 1
|
|
if(ABS(level[i]) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
|
|
#else
|
|
if((2+level_code)>>1) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
|
|
? == prefix > 2 or sth
|
|
#endif
|
|
tprintf("level: %d suffix_length:%d\n", level[i], suffix_length);
|
|
}
|
|
|
|
if(total_coeff == max_coeff)
|
|
zeros_left=0;
|
|
else{
|
|
if(n == CHROMA_DC_BLOCK_INDEX)
|
|
zeros_left= get_vlc2(gb, chroma_dc_total_zeros_vlc[ total_coeff-1 ].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1);
|
|
else
|
|
zeros_left= get_vlc2(gb, total_zeros_vlc[ total_coeff-1 ].table, TOTAL_ZEROS_VLC_BITS, 1);
|
|
}
|
|
|
|
for(i=0; i<total_coeff-1; i++){
|
|
if(zeros_left <=0)
|
|
break;
|
|
else if(zeros_left < 7){
|
|
run[i]= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1);
|
|
}else{
|
|
run[i]= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
|
|
}
|
|
zeros_left -= run[i];
|
|
}
|
|
|
|
if(zeros_left<0){
|
|
fprintf(stderr, "negative number of zero coeffs at %d %d\n", s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
|
|
for(; i<total_coeff-1; i++){
|
|
run[i]= 0;
|
|
}
|
|
|
|
run[i]= zeros_left;
|
|
|
|
coeff_num=-1;
|
|
if(n > 24){
|
|
for(i=total_coeff-1; i>=0; i--){ //FIXME merge into rundecode?
|
|
int j;
|
|
|
|
coeff_num += run[i] + 1; //FIXME add 1 earlier ?
|
|
j= scantable[ coeff_num ];
|
|
|
|
block[j]= level[i];
|
|
}
|
|
}else{
|
|
for(i=total_coeff-1; i>=0; i--){ //FIXME merge into rundecode?
|
|
int j;
|
|
|
|
coeff_num += run[i] + 1; //FIXME add 1 earlier ?
|
|
j= scantable[ coeff_num ];
|
|
|
|
block[j]= level[i] * qmul[j];
|
|
// printf("%d %d ", block[j], qmul[j]);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* decodes a macroblock
|
|
* @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
|
|
*/
|
|
static int decode_mb(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_xy= s->mb_x + s->mb_y*h->mb_stride;
|
|
int mb_type, partition_count, cbp;
|
|
|
|
memset(h->mb, 0, sizeof(int16_t)*24*16); //FIXME avoid if allready clear (move after skip handlong?
|
|
|
|
tprintf("pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
|
|
|
|
if(h->slice_type != I_TYPE && h->slice_type != SI_TYPE){
|
|
if(s->mb_skip_run==-1)
|
|
s->mb_skip_run= get_ue_golomb(&s->gb);
|
|
|
|
if (s->mb_skip_run--) {
|
|
int i, mx, my;
|
|
/* skip mb */
|
|
#if 0 //FIXME
|
|
for(i=0;i<6;i++)
|
|
s->block_last_index[i] = -1;
|
|
s->mv_type = MV_TYPE_16X16;
|
|
/* if P type, zero motion vector is implied */
|
|
s->mv_dir = MV_DIR_FORWARD;
|
|
s->mb_skiped = 1;
|
|
#endif
|
|
//FIXME b frame
|
|
mb_type= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0;
|
|
|
|
memset(h->non_zero_count[mb_xy], 0, 16);
|
|
memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
|
|
|
|
if(h->sps.mb_aff && s->mb_skip_run==0 && (s->mb_y&1)==0){
|
|
h->mb_field_decoding_flag= get_bits1(&s->gb);
|
|
}
|
|
|
|
if(h->mb_field_decoding_flag)
|
|
mb_type|= MB_TYPE_INTERLACED;
|
|
|
|
fill_caches(h, mb_type); //FIXME check what is needed and what not ...
|
|
pred_pskip_motion(h, &mx, &my);
|
|
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
|
|
fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, (mx&0xFFFF)+(my<<16), 4);
|
|
write_back_motion(h, mb_type);
|
|
|
|
s->current_picture.mb_type[mb_xy]= mb_type; //FIXME SKIP type
|
|
h->slice_table[ mb_xy ]= h->slice_num;
|
|
|
|
h->prev_mb_skiped= 1;
|
|
return 0;
|
|
}
|
|
}
|
|
if(h->sps.mb_aff /* && !field pic FIXME needed? */){
|
|
if((s->mb_y&1)==0)
|
|
h->mb_field_decoding_flag = get_bits1(&s->gb);
|
|
}else
|
|
h->mb_field_decoding_flag=0; //FIXME som ed note ?!
|
|
|
|
h->prev_mb_skiped= 0;
|
|
|
|
mb_type= get_ue_golomb(&s->gb);
|
|
if(h->slice_type == B_TYPE){
|
|
if(mb_type < 23){
|
|
partition_count= b_mb_type_info[mb_type].partition_count;
|
|
mb_type= b_mb_type_info[mb_type].type;
|
|
}else{
|
|
mb_type -= 23;
|
|
goto decode_intra_mb;
|
|
}
|
|
}else if(h->slice_type == P_TYPE /*|| h->slice_type == SP_TYPE */){
|
|
if(mb_type < 5){
|
|
partition_count= p_mb_type_info[mb_type].partition_count;
|
|
mb_type= p_mb_type_info[mb_type].type;
|
|
}else{
|
|
mb_type -= 5;
|
|
goto decode_intra_mb;
|
|
}
|
|
}else{
|
|
assert(h->slice_type == I_TYPE);
|
|
decode_intra_mb:
|
|
if(mb_type > 25){
|
|
fprintf(stderr, "mb_type %d in %c slice to large at %d %d\n", mb_type, ff_get_pict_type_char(h->slice_type), s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
partition_count=0;
|
|
cbp= i_mb_type_info[mb_type].cbp;
|
|
h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
|
|
mb_type= i_mb_type_info[mb_type].type;
|
|
}
|
|
|
|
if(h->mb_field_decoding_flag)
|
|
mb_type |= MB_TYPE_INTERLACED;
|
|
|
|
s->current_picture.mb_type[mb_xy]= mb_type;
|
|
h->slice_table[ mb_xy ]= h->slice_num;
|
|
|
|
if(IS_INTRA_PCM(mb_type)){
|
|
const uint8_t *ptr;
|
|
int x, y, i;
|
|
|
|
// we assume these blocks are very rare so we dont optimize it
|
|
align_get_bits(&s->gb);
|
|
|
|
ptr= s->gb.buffer + get_bits_count(&s->gb);
|
|
|
|
for(y=0; y<16; y++){
|
|
const int index= 4*(y&3) + 64*(y>>2);
|
|
for(x=0; x<16; x++){
|
|
h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
|
|
}
|
|
}
|
|
for(y=0; y<8; y++){
|
|
const int index= 256 + 4*(y&3) + 32*(y>>2);
|
|
for(x=0; x<8; x++){
|
|
h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
|
|
}
|
|
}
|
|
for(y=0; y<8; y++){
|
|
const int index= 256 + 64 + 4*(y&3) + 32*(y>>2);
|
|
for(x=0; x<8; x++){
|
|
h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
|
|
}
|
|
}
|
|
|
|
skip_bits(&s->gb, 384); //FIXME check /fix the bitstream readers
|
|
|
|
memset(h->non_zero_count[mb_xy], 16, 16);
|
|
|
|
return 0;
|
|
}
|
|
|
|
fill_caches(h, mb_type);
|
|
|
|
//mb_pred
|
|
if(IS_INTRA(mb_type)){
|
|
// init_top_left_availability(h);
|
|
if(IS_INTRA4x4(mb_type)){
|
|
int i;
|
|
|
|
// fill_intra4x4_pred_table(h);
|
|
for(i=0; i<16; i++){
|
|
const int mode_coded= !get_bits1(&s->gb);
|
|
const int predicted_mode= pred_intra_mode(h, i);
|
|
int mode;
|
|
|
|
if(mode_coded){
|
|
const int rem_mode= get_bits(&s->gb, 3);
|
|
if(rem_mode<predicted_mode)
|
|
mode= rem_mode;
|
|
else
|
|
mode= rem_mode + 1;
|
|
}else{
|
|
mode= predicted_mode;
|
|
}
|
|
|
|
h->intra4x4_pred_mode_cache[ scan8[i] ] = mode;
|
|
}
|
|
write_back_intra_pred_mode(h);
|
|
if( check_intra4x4_pred_mode(h) < 0)
|
|
return -1;
|
|
}else{
|
|
h->intra16x16_pred_mode= check_intra_pred_mode(h, h->intra16x16_pred_mode);
|
|
if(h->intra16x16_pred_mode < 0)
|
|
return -1;
|
|
}
|
|
h->chroma_pred_mode= get_ue_golomb(&s->gb);
|
|
|
|
h->chroma_pred_mode= check_intra_pred_mode(h, h->chroma_pred_mode);
|
|
if(h->chroma_pred_mode < 0)
|
|
return -1;
|
|
}else if(partition_count==4){
|
|
int i, j, sub_partition_count[4], list, ref[2][4];
|
|
|
|
if(h->slice_type == B_TYPE){
|
|
for(i=0; i<4; i++){
|
|
h->sub_mb_type[i]= get_ue_golomb(&s->gb);
|
|
if(h->sub_mb_type[i] >=13){
|
|
fprintf(stderr, "B sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
|
|
h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
|
|
}
|
|
}else{
|
|
assert(h->slice_type == P_TYPE || h->slice_type == SP_TYPE); //FIXME SP correct ?
|
|
for(i=0; i<4; i++){
|
|
h->sub_mb_type[i]= get_ue_golomb(&s->gb);
|
|
if(h->sub_mb_type[i] >=4){
|
|
fprintf(stderr, "P sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
|
|
h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
|
|
}
|
|
}
|
|
|
|
for(list=0; list<2; list++){
|
|
const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
|
|
if(ref_count == 0) continue;
|
|
for(i=0; i<4; i++){
|
|
if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
|
|
ref[list][i] = get_te0_golomb(&s->gb, ref_count); //FIXME init to 0 before and skip?
|
|
}else{
|
|
//FIXME
|
|
ref[list][i] = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
for(list=0; list<2; list++){
|
|
const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
|
|
if(ref_count == 0) continue;
|
|
|
|
for(i=0; i<4; i++){
|
|
h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]=
|
|
h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
|
|
|
|
if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
|
|
const int sub_mb_type= h->sub_mb_type[i];
|
|
const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
|
|
for(j=0; j<sub_partition_count[i]; j++){
|
|
int mx, my;
|
|
const int index= 4*i + block_width*j;
|
|
int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
|
|
pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);
|
|
mx += get_se_golomb(&s->gb);
|
|
my += get_se_golomb(&s->gb);
|
|
tprintf("final mv:%d %d\n", mx, my);
|
|
|
|
if(IS_SUB_8X8(sub_mb_type)){
|
|
mv_cache[ 0 ][0]= mv_cache[ 1 ][0]=
|
|
mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
|
|
mv_cache[ 0 ][1]= mv_cache[ 1 ][1]=
|
|
mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
|
|
}else if(IS_SUB_8X4(sub_mb_type)){
|
|
mv_cache[ 0 ][0]= mv_cache[ 1 ][0]= mx;
|
|
mv_cache[ 0 ][1]= mv_cache[ 1 ][1]= my;
|
|
}else if(IS_SUB_4X8(sub_mb_type)){
|
|
mv_cache[ 0 ][0]= mv_cache[ 8 ][0]= mx;
|
|
mv_cache[ 0 ][1]= mv_cache[ 8 ][1]= my;
|
|
}else{
|
|
assert(IS_SUB_4X4(sub_mb_type));
|
|
mv_cache[ 0 ][0]= mx;
|
|
mv_cache[ 0 ][1]= my;
|
|
}
|
|
}
|
|
}else{
|
|
uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
|
|
p[0] = p[1]=
|
|
p[8] = p[9]= 0;
|
|
}
|
|
}
|
|
}
|
|
}else if(!IS_DIRECT(mb_type)){
|
|
int list, mx, my, i;
|
|
//FIXME we should set ref_idx_l? to 0 if we use that later ...
|
|
if(IS_16X16(mb_type)){
|
|
for(list=0; list<2; list++){
|
|
if(h->ref_count[0]>0){
|
|
if(IS_DIR(mb_type, 0, list)){
|
|
const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
|
|
fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, val, 1);
|
|
}
|
|
}
|
|
}
|
|
for(list=0; list<2; list++){
|
|
if(IS_DIR(mb_type, 0, list)){
|
|
pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);
|
|
mx += get_se_golomb(&s->gb);
|
|
my += get_se_golomb(&s->gb);
|
|
tprintf("final mv:%d %d\n", mx, my);
|
|
|
|
fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, (mx&0xFFFF) + (my<<16), 4);
|
|
}
|
|
}
|
|
}
|
|
else if(IS_16X8(mb_type)){
|
|
for(list=0; list<2; list++){
|
|
if(h->ref_count[list]>0){
|
|
for(i=0; i<2; i++){
|
|
if(IS_DIR(mb_type, i, list)){
|
|
const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
|
|
fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for(list=0; list<2; list++){
|
|
for(i=0; i<2; i++){
|
|
if(IS_DIR(mb_type, i, list)){
|
|
pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);
|
|
mx += get_se_golomb(&s->gb);
|
|
my += get_se_golomb(&s->gb);
|
|
tprintf("final mv:%d %d\n", mx, my);
|
|
|
|
fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (mx&0xFFFF) + (my<<16), 4);
|
|
}
|
|
}
|
|
}
|
|
}else{
|
|
assert(IS_8X16(mb_type));
|
|
for(list=0; list<2; list++){
|
|
if(h->ref_count[list]>0){
|
|
for(i=0; i<2; i++){
|
|
if(IS_DIR(mb_type, i, list)){ //FIXME optimize
|
|
const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
|
|
fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for(list=0; list<2; list++){
|
|
for(i=0; i<2; i++){
|
|
if(IS_DIR(mb_type, i, list)){
|
|
pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
|
|
mx += get_se_golomb(&s->gb);
|
|
my += get_se_golomb(&s->gb);
|
|
tprintf("final mv:%d %d\n", mx, my);
|
|
|
|
fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (mx&0xFFFF) + (my<<16), 4);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(IS_INTER(mb_type))
|
|
write_back_motion(h, mb_type);
|
|
|
|
if(!IS_INTRA16x16(mb_type)){
|
|
cbp= get_ue_golomb(&s->gb);
|
|
if(cbp > 47){
|
|
fprintf(stderr, "cbp too large (%d) at %d %d\n", cbp, s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
|
|
if(IS_INTRA4x4(mb_type))
|
|
cbp= golomb_to_intra4x4_cbp[cbp];
|
|
else
|
|
cbp= golomb_to_inter_cbp[cbp];
|
|
}
|
|
|
|
if(cbp || IS_INTRA16x16(mb_type)){
|
|
int i8x8, i4x4, chroma_idx;
|
|
int chroma_qp, dquant;
|
|
GetBitContext *gb= IS_INTRA(mb_type) ? h->intra_gb_ptr : h->inter_gb_ptr;
|
|
const uint8_t *scan, *dc_scan;
|
|
|
|
// fill_non_zero_count_cache(h);
|
|
|
|
if(IS_INTERLACED(mb_type)){
|
|
scan= field_scan;
|
|
dc_scan= luma_dc_field_scan;
|
|
}else{
|
|
scan= zigzag_scan;
|
|
dc_scan= luma_dc_zigzag_scan;
|
|
}
|
|
|
|
dquant= get_se_golomb(&s->gb);
|
|
|
|
if( dquant > 25 || dquant < -26 ){
|
|
fprintf(stderr, "dquant out of range (%d) at %d %d\n", dquant, s->mb_x, s->mb_y);
|
|
return -1;
|
|
}
|
|
|
|
s->qscale += dquant;
|
|
if(((unsigned)s->qscale) > 51){
|
|
if(s->qscale<0) s->qscale+= 52;
|
|
else s->qscale-= 52;
|
|
}
|
|
|
|
h->chroma_qp= chroma_qp= get_chroma_qp(h, s->qscale);
|
|
if(IS_INTRA16x16(mb_type)){
|
|
if( decode_residual(h, h->intra_gb_ptr, h->mb, LUMA_DC_BLOCK_INDEX, dc_scan, s->qscale, 16) < 0){
|
|
return -1; //FIXME continue if partotioned and other retirn -1 too
|
|
}
|
|
|
|
assert((cbp&15) == 0 || (cbp&15) == 15);
|
|
|
|
if(cbp&15){
|
|
for(i8x8=0; i8x8<4; i8x8++){
|
|
for(i4x4=0; i4x4<4; i4x4++){
|
|
const int index= i4x4 + 4*i8x8;
|
|
if( decode_residual(h, h->intra_gb_ptr, h->mb + 16*index, index, scan + 1, s->qscale, 15) < 0 ){
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
}else{
|
|
memset(&h->non_zero_count_cache[8], 0, 8*4); //FIXME stupid & slow
|
|
}
|
|
}else{
|
|
for(i8x8=0; i8x8<4; i8x8++){
|
|
if(cbp & (1<<i8x8)){
|
|
for(i4x4=0; i4x4<4; i4x4++){
|
|
const int index= i4x4 + 4*i8x8;
|
|
|
|
if( decode_residual(h, gb, h->mb + 16*index, index, scan, s->qscale, 16) <0 ){
|
|
return -1;
|
|
}
|
|
}
|
|
}else{
|
|
uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
|
|
nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(cbp&0x30){
|
|
for(chroma_idx=0; chroma_idx<2; chroma_idx++)
|
|
if( decode_residual(h, gb, h->mb + 256 + 16*4*chroma_idx, CHROMA_DC_BLOCK_INDEX, chroma_dc_scan, chroma_qp, 4) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if(cbp&0x20){
|
|
for(chroma_idx=0; chroma_idx<2; chroma_idx++){
|
|
for(i4x4=0; i4x4<4; i4x4++){
|
|
const int index= 16 + 4*chroma_idx + i4x4;
|
|
if( decode_residual(h, gb, h->mb + 16*index, index, scan + 1, chroma_qp, 15) < 0){
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
}else{
|
|
uint8_t * const nnz= &h->non_zero_count_cache[0];
|
|
nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
|
|
nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
|
|
}
|
|
}else{
|
|
memset(&h->non_zero_count_cache[8], 0, 8*5);
|
|
}
|
|
write_back_non_zero_count(h);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode_slice(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
|
|
|
|
s->mb_skip_run= -1;
|
|
|
|
#if 1
|
|
for(;;){
|
|
int ret= decode_mb(h);
|
|
|
|
hl_decode_mb(h);
|
|
|
|
if(ret>=0 && h->sps.mb_aff){ //FIXME optimal? or let mb_decode decode 16x32 ?
|
|
s->mb_y++;
|
|
ret= decode_mb(h);
|
|
|
|
hl_decode_mb(h);
|
|
s->mb_y--;
|
|
}
|
|
|
|
if(ret<0){
|
|
fprintf(stderr, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
|
|
|
|
return -1;
|
|
}
|
|
|
|
if(++s->mb_x >= s->mb_width){
|
|
s->mb_x=0;
|
|
ff_draw_horiz_band(s, 16*s->mb_y, 16);
|
|
if(++s->mb_y >= s->mb_height){
|
|
tprintf("slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
|
|
|
|
if(get_bits_count(&s->gb) == s->gb.size_in_bits){
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
|
|
|
return 0;
|
|
}else{
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
|
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
|
|
if(get_bits_count(&s->gb) == s->gb.size_in_bits){
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
|
|
|
return 0;
|
|
}else{
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
|
|
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
#if 0
|
|
for(;s->mb_y < s->mb_height; s->mb_y++){
|
|
for(;s->mb_x < s->mb_width; s->mb_x++){
|
|
int ret= decode_mb(h);
|
|
|
|
hl_decode_mb(h);
|
|
|
|
if(ret<0){
|
|
fprintf(stderr, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
|
|
|
|
return -1;
|
|
}
|
|
|
|
if(++s->mb_x >= s->mb_width){
|
|
s->mb_x=0;
|
|
if(++s->mb_y >= s->mb_height){
|
|
if(get_bits_count(s->gb) == s->gb.size_in_bits){
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
|
|
|
return 0;
|
|
}else{
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
|
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(get_bits_count(s->?gb) >= s->gb?.size_in_bits){
|
|
if(get_bits_count(s->gb) == s->gb.size_in_bits){
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
|
|
|
return 0;
|
|
}else{
|
|
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
|
|
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
s->mb_x=0;
|
|
ff_draw_horiz_band(s, 16*s->mb_y, 16);
|
|
}
|
|
#endif
|
|
return -1; //not reached
|
|
}
|
|
|
|
static inline int decode_vui_parameters(H264Context *h, SPS *sps){
|
|
MpegEncContext * const s = &h->s;
|
|
int aspect_ratio_info_present_flag, aspect_ratio_idc;
|
|
|
|
aspect_ratio_info_present_flag= get_bits1(&s->gb);
|
|
|
|
if( aspect_ratio_info_present_flag ) {
|
|
aspect_ratio_idc= get_bits(&s->gb, 8);
|
|
if( aspect_ratio_idc == EXTENDED_SAR ) {
|
|
sps->sar_width= get_bits(&s->gb, 16);
|
|
sps->sar_height= get_bits(&s->gb, 16);
|
|
}else if(aspect_ratio_idc < 16){
|
|
sps->sar_width= pixel_aspect[aspect_ratio_idc][0];
|
|
sps->sar_height= pixel_aspect[aspect_ratio_idc][1];
|
|
}else{
|
|
fprintf(stderr, "illegal aspect ratio\n");
|
|
return -1;
|
|
}
|
|
}else{
|
|
sps->sar_width=
|
|
sps->sar_height= 0;
|
|
}
|
|
// s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height);
|
|
#if 0
|
|
| overscan_info_present_flag |0 |u(1) |
|
|
| if( overscan_info_present_flag ) | | |
|
|
| overscan_appropriate_flag |0 |u(1) |
|
|
| video_signal_type_present_flag |0 |u(1) |
|
|
| if( video_signal_type_present_flag ) { | | |
|
|
| video_format |0 |u(3) |
|
|
| video_full_range_flag |0 |u(1) |
|
|
| colour_description_present_flag |0 |u(1) |
|
|
| if( colour_description_present_flag ) { | | |
|
|
| colour_primaries |0 |u(8) |
|
|
| transfer_characteristics |0 |u(8) |
|
|
| matrix_coefficients |0 |u(8) |
|
|
| } | | |
|
|
| } | | |
|
|
| chroma_location_info_present_flag |0 |u(1) |
|
|
| if ( chroma_location_info_present_flag ) { | | |
|
|
| chroma_sample_location_type_top_field |0 |ue(v) |
|
|
| chroma_sample_location_type_bottom_field |0 |ue(v) |
|
|
| } | | |
|
|
| timing_info_present_flag |0 |u(1) |
|
|
| if( timing_info_present_flag ) { | | |
|
|
| num_units_in_tick |0 |u(32) |
|
|
| time_scale |0 |u(32) |
|
|
| fixed_frame_rate_flag |0 |u(1) |
|
|
| } | | |
|
|
| nal_hrd_parameters_present_flag |0 |u(1) |
|
|
| if( nal_hrd_parameters_present_flag = = 1) | | |
|
|
| hrd_parameters( ) | | |
|
|
| vcl_hrd_parameters_present_flag |0 |u(1) |
|
|
| if( vcl_hrd_parameters_present_flag = = 1) | | |
|
|
| hrd_parameters( ) | | |
|
|
| if( ( nal_hrd_parameters_present_flag = = 1 | || | |
|
|
| | | |
|
|
|( vcl_hrd_parameters_present_flag = = 1 ) ) | | |
|
|
| low_delay_hrd_flag |0 |u(1) |
|
|
| bitstream_restriction_flag |0 |u(1) |
|
|
| if( bitstream_restriction_flag ) { |0 |u(1) |
|
|
| motion_vectors_over_pic_boundaries_flag |0 |u(1) |
|
|
| max_bytes_per_pic_denom |0 |ue(v) |
|
|
| max_bits_per_mb_denom |0 |ue(v) |
|
|
| log2_max_mv_length_horizontal |0 |ue(v) |
|
|
| log2_max_mv_length_vertical |0 |ue(v) |
|
|
| num_reorder_frames |0 |ue(v) |
|
|
| max_dec_frame_buffering |0 |ue(v) |
|
|
| } | | |
|
|
|} | | |
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static inline int decode_seq_parameter_set(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int profile_idc, level_idc, multiple_slice_groups, arbitrary_slice_order, redundant_slices;
|
|
int sps_id, i;
|
|
SPS *sps;
|
|
|
|
profile_idc= get_bits(&s->gb, 8);
|
|
level_idc= get_bits(&s->gb, 8);
|
|
multiple_slice_groups= get_bits1(&s->gb);
|
|
arbitrary_slice_order= get_bits1(&s->gb);
|
|
redundant_slices= get_bits1(&s->gb);
|
|
|
|
sps_id= get_ue_golomb(&s->gb);
|
|
|
|
sps= &h->sps_buffer[ sps_id ];
|
|
|
|
sps->profile_idc= profile_idc;
|
|
sps->level_idc= level_idc;
|
|
sps->multiple_slice_groups= multiple_slice_groups;
|
|
sps->arbitrary_slice_order= arbitrary_slice_order;
|
|
sps->redundant_slices= redundant_slices;
|
|
|
|
sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4;
|
|
|
|
sps->poc_type= get_ue_golomb(&s->gb);
|
|
|
|
if(sps->poc_type == 0){ //FIXME #define
|
|
sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4;
|
|
} else if(sps->poc_type == 1){//FIXME #define
|
|
sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb);
|
|
sps->offset_for_non_ref_pic= get_se_golomb(&s->gb);
|
|
sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb);
|
|
sps->poc_cycle_length= get_ue_golomb(&s->gb);
|
|
|
|
for(i=0; i<sps->poc_cycle_length; i++)
|
|
sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb);
|
|
}
|
|
if(sps->poc_type > 2){
|
|
fprintf(stderr, "illegal POC type %d\n", sps->poc_type);
|
|
return -1;
|
|
}
|
|
|
|
sps->ref_frame_count= get_ue_golomb(&s->gb);
|
|
sps->required_frame_num_update_behaviour_flag= get_bits1(&s->gb);
|
|
sps->mb_width= get_ue_golomb(&s->gb) + 1;
|
|
sps->mb_height= get_ue_golomb(&s->gb) + 1;
|
|
sps->frame_mbs_only_flag= get_bits1(&s->gb);
|
|
if(!sps->frame_mbs_only_flag)
|
|
sps->mb_aff= get_bits1(&s->gb);
|
|
else
|
|
sps->mb_aff= 0;
|
|
|
|
sps->direct_8x8_inference_flag= get_bits1(&s->gb);
|
|
|
|
sps->vui_parameters_present_flag= get_bits1(&s->gb);
|
|
if( sps->vui_parameters_present_flag )
|
|
decode_vui_parameters(h, sps);
|
|
|
|
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
|
|
printf("sps:%d profile:%d/%d poc:%d ref:%d %dx%d %s %s %s\n",
|
|
sps_id, sps->profile_idc, sps->level_idc,
|
|
sps->poc_type,
|
|
sps->ref_frame_count,
|
|
sps->mb_width, sps->mb_height,
|
|
sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"),
|
|
sps->direct_8x8_inference_flag ? "8B8" : "",
|
|
sps->vui_parameters_present_flag ? "VUI" : ""
|
|
);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline int decode_picture_parameter_set(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
int pps_id= get_ue_golomb(&s->gb);
|
|
PPS *pps= &h->pps_buffer[pps_id];
|
|
|
|
pps->sps_id= get_ue_golomb(&s->gb);
|
|
pps->cabac= get_bits1(&s->gb);
|
|
pps->pic_order_present= get_bits1(&s->gb);
|
|
pps->slice_group_count= get_ue_golomb(&s->gb) + 1;
|
|
if(pps->slice_group_count > 1 ){
|
|
pps->mb_slice_group_map_type= get_ue_golomb(&s->gb);
|
|
fprintf(stderr, "FMO not supported\n");
|
|
switch(pps->mb_slice_group_map_type){
|
|
case 0:
|
|
#if 0
|
|
| for( i = 0; i <= num_slice_groups_minus1; i++ ) | | |
|
|
| run_length[ i ] |1 |ue(v) |
|
|
#endif
|
|
break;
|
|
case 2:
|
|
#if 0
|
|
| for( i = 0; i < num_slice_groups_minus1; i++ ) | | |
|
|
|{ | | |
|
|
| top_left_mb[ i ] |1 |ue(v) |
|
|
| bottom_right_mb[ i ] |1 |ue(v) |
|
|
| } | | |
|
|
#endif
|
|
break;
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
#if 0
|
|
| slice_group_change_direction_flag |1 |u(1) |
|
|
| slice_group_change_rate_minus1 |1 |ue(v) |
|
|
#endif
|
|
break;
|
|
case 6:
|
|
#if 0
|
|
| slice_group_id_cnt_minus1 |1 |ue(v) |
|
|
| for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | |
|
|
|) | | |
|
|
| slice_group_id[ i ] |1 |u(v) |
|
|
#endif
|
|
}
|
|
}
|
|
pps->ref_count[0]= get_ue_golomb(&s->gb) + 1;
|
|
pps->ref_count[1]= get_ue_golomb(&s->gb) + 1;
|
|
if(pps->ref_count[0] > 32 || pps->ref_count[1] > 32){
|
|
fprintf(stderr, "reference overflow (pps)\n");
|
|
return -1;
|
|
}
|
|
|
|
pps->weighted_pred= get_bits1(&s->gb);
|
|
pps->weighted_bipred_idc= get_bits(&s->gb, 2);
|
|
pps->init_qp= get_se_golomb(&s->gb) + 26;
|
|
pps->init_qs= get_se_golomb(&s->gb) + 26;
|
|
pps->chroma_qp_index_offset= get_se_golomb(&s->gb);
|
|
pps->deblocking_filter_parameters_present= get_bits1(&s->gb);
|
|
pps->constrained_intra_pred= get_bits1(&s->gb);
|
|
pps->redundant_pic_cnt_present = get_bits1(&s->gb);
|
|
pps->crop= get_bits1(&s->gb);
|
|
if(pps->crop){
|
|
pps->crop_left = get_ue_golomb(&s->gb);
|
|
pps->crop_right = get_ue_golomb(&s->gb);
|
|
pps->crop_top = get_ue_golomb(&s->gb);
|
|
pps->crop_bottom= get_ue_golomb(&s->gb);
|
|
}else{
|
|
pps->crop_left =
|
|
pps->crop_right =
|
|
pps->crop_top =
|
|
pps->crop_bottom= 0;
|
|
}
|
|
|
|
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
|
|
printf("pps:%d sps:%d %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d %s %s %s crop:%d/%d/%d/%d\n",
|
|
pps_id, pps->sps_id,
|
|
pps->cabac ? "CABAC" : "CAVLC",
|
|
pps->slice_group_count,
|
|
pps->ref_count[0], pps->ref_count[1],
|
|
pps->weighted_pred ? "weighted" : "",
|
|
pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset,
|
|
pps->deblocking_filter_parameters_present ? "LPAR" : "",
|
|
pps->constrained_intra_pred ? "CONSTR" : "",
|
|
pps->redundant_pic_cnt_present ? "REDU" : "",
|
|
pps->crop_left, pps->crop_right,
|
|
pps->crop_top, pps->crop_bottom
|
|
);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* finds the end of the current frame in the bitstream.
|
|
* @return the position of the first byte of the next frame, or -1
|
|
*/
|
|
static int find_frame_end(MpegEncContext *s, uint8_t *buf, int buf_size){
|
|
ParseContext *pc= &s->parse_context;
|
|
int last_addr, i;
|
|
uint32_t state;
|
|
//printf("first %02X%02X%02X%02X\n", buf[0], buf[1],buf[2],buf[3]);
|
|
// mb_addr= pc->mb_addr - 1;
|
|
state= pc->state;
|
|
//FIXME this will fail with slices
|
|
for(i=0; i<buf_size; i++){
|
|
state= (state<<8) | buf[i];
|
|
if((state&0xFFFFFF1F) == 0x101 || (state&0xFFFFFF1F) == 0x102 || (state&0xFFFFFF1F) == 0x105){
|
|
if(pc->frame_start_found){
|
|
pc->state=-1;
|
|
pc->frame_start_found= 0;
|
|
return i-3;
|
|
}
|
|
pc->frame_start_found= 1;
|
|
}
|
|
}
|
|
|
|
pc->state= state;
|
|
return -1;
|
|
}
|
|
|
|
static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
|
|
MpegEncContext * const s = &h->s;
|
|
AVCodecContext * const avctx= s->avctx;
|
|
int buf_index=0;
|
|
int i;
|
|
#if 0
|
|
for(i=0; i<32; i++){
|
|
printf("%X ", buf[i]);
|
|
}
|
|
#endif
|
|
for(;;){
|
|
int consumed;
|
|
int dst_length;
|
|
int bit_length;
|
|
uint8_t *ptr;
|
|
|
|
// start code prefix search
|
|
for(; buf_index + 3 < buf_size; buf_index++){
|
|
// this should allways succeed in the first iteration
|
|
if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1)
|
|
break;
|
|
}
|
|
|
|
if(buf_index+3 >= buf_size) break;
|
|
|
|
buf_index+=3;
|
|
|
|
ptr= decode_nal(h, buf + buf_index, &dst_length, &consumed, buf_size - buf_index);
|
|
if(ptr[dst_length - 1] == 0) dst_length--;
|
|
bit_length= 8*dst_length - decode_rbsp_trailing(ptr + dst_length - 1);
|
|
|
|
if(s->avctx->debug&FF_DEBUG_STARTCODE){
|
|
printf("NAL %d at %d length %d\n", h->nal_unit_type, buf_index, dst_length);
|
|
}
|
|
|
|
buf_index += consumed;
|
|
|
|
if(h->nal_ref_idc < s->hurry_up)
|
|
continue;
|
|
|
|
switch(h->nal_unit_type){
|
|
case NAL_IDR_SLICE:
|
|
idr(h); //FIXME ensure we dont loose some frames if there is reordering
|
|
case NAL_SLICE:
|
|
init_get_bits(&s->gb, ptr, bit_length);
|
|
h->intra_gb_ptr=
|
|
h->inter_gb_ptr= &s->gb;
|
|
s->data_partitioning = 0;
|
|
|
|
if(decode_slice_header(h) < 0) return -1;
|
|
if(h->redundant_pic_count==0)
|
|
decode_slice(h);
|
|
break;
|
|
case NAL_DPA:
|
|
init_get_bits(&s->gb, ptr, bit_length);
|
|
h->intra_gb_ptr=
|
|
h->inter_gb_ptr= NULL;
|
|
s->data_partitioning = 1;
|
|
|
|
if(decode_slice_header(h) < 0) return -1;
|
|
break;
|
|
case NAL_DPB:
|
|
init_get_bits(&h->intra_gb, ptr, bit_length);
|
|
h->intra_gb_ptr= &h->intra_gb;
|
|
break;
|
|
case NAL_DPC:
|
|
init_get_bits(&h->inter_gb, ptr, bit_length);
|
|
h->inter_gb_ptr= &h->inter_gb;
|
|
|
|
if(h->redundant_pic_count==0 && h->intra_gb_ptr && s->data_partitioning)
|
|
decode_slice(h);
|
|
break;
|
|
case NAL_SEI:
|
|
break;
|
|
case NAL_SPS:
|
|
init_get_bits(&s->gb, ptr, bit_length);
|
|
decode_seq_parameter_set(h);
|
|
|
|
if(s->flags& CODEC_FLAG_LOW_DELAY)
|
|
s->low_delay=1;
|
|
|
|
avctx->has_b_frames= !s->low_delay;
|
|
break;
|
|
case NAL_PPS:
|
|
init_get_bits(&s->gb, ptr, bit_length);
|
|
|
|
decode_picture_parameter_set(h);
|
|
|
|
break;
|
|
case NAL_PICTURE_DELIMITER:
|
|
break;
|
|
case NAL_FILTER_DATA:
|
|
break;
|
|
}
|
|
|
|
//FIXME move after where irt is set
|
|
s->current_picture.pict_type= s->pict_type;
|
|
s->current_picture.key_frame= s->pict_type == I_TYPE;
|
|
}
|
|
|
|
if(!s->current_picture_ptr) return buf_index; //no frame
|
|
|
|
h->prev_frame_num_offset= h->frame_num_offset;
|
|
h->prev_frame_num= h->frame_num;
|
|
if(s->current_picture_ptr->reference){
|
|
h->prev_poc_msb= h->poc_msb;
|
|
h->prev_poc_lsb= h->poc_lsb;
|
|
}
|
|
if(s->current_picture_ptr->reference)
|
|
execute_ref_pic_marking(h, h->mmco, h->mmco_index);
|
|
else
|
|
assert(h->mmco_index==0);
|
|
|
|
ff_er_frame_end(s);
|
|
MPV_frame_end(s);
|
|
|
|
return buf_index;
|
|
}
|
|
|
|
/**
|
|
* retunrs the number of bytes consumed for building the current frame
|
|
*/
|
|
static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){
|
|
if(s->flags&CODEC_FLAG_TRUNCATED){
|
|
pos -= s->parse_context.last_index;
|
|
if(pos<0) pos=0; // FIXME remove (uneeded?)
|
|
|
|
return pos;
|
|
}else{
|
|
if(pos==0) pos=1; //avoid infinite loops (i doubt thats needed but ...)
|
|
if(pos+10>buf_size) pos=buf_size; // oops ;)
|
|
|
|
return pos;
|
|
}
|
|
}
|
|
|
|
static int decode_frame(AVCodecContext *avctx,
|
|
void *data, int *data_size,
|
|
uint8_t *buf, int buf_size)
|
|
{
|
|
H264Context *h = avctx->priv_data;
|
|
MpegEncContext *s = &h->s;
|
|
AVFrame *pict = data;
|
|
float new_aspect;
|
|
int buf_index;
|
|
|
|
s->flags= avctx->flags;
|
|
|
|
*data_size = 0;
|
|
|
|
/* no supplementary picture */
|
|
if (buf_size == 0) {
|
|
return 0;
|
|
}
|
|
|
|
if(s->flags&CODEC_FLAG_TRUNCATED){
|
|
int next= find_frame_end(s, buf, buf_size);
|
|
|
|
if( ff_combine_frame(s, next, &buf, &buf_size) < 0 )
|
|
return buf_size;
|
|
//printf("next:%d buf_size:%d last_index:%d\n", next, buf_size, s->parse_context.last_index);
|
|
}
|
|
|
|
if(s->avctx->extradata_size && s->picture_number==0){
|
|
if(0 < decode_nal_units(h, s->avctx->extradata, s->avctx->extradata_size) )
|
|
return -1;
|
|
}
|
|
|
|
buf_index=decode_nal_units(h, buf, buf_size);
|
|
if(buf_index < 0)
|
|
return -1;
|
|
|
|
//FIXME do something with unavailable reference frames
|
|
|
|
// if(ret==FRAME_SKIPED) return get_consumed_bytes(s, buf_index, buf_size);
|
|
#if 0
|
|
if(s->pict_type==B_TYPE || s->low_delay){
|
|
*pict= *(AVFrame*)&s->current_picture;
|
|
} else {
|
|
*pict= *(AVFrame*)&s->last_picture;
|
|
}
|
|
#endif
|
|
if(!s->current_picture_ptr){
|
|
fprintf(stderr, "error, NO frame\n");
|
|
return -1;
|
|
}
|
|
|
|
*pict= *(AVFrame*)&s->current_picture; //FIXME
|
|
assert(pict->data[0]);
|
|
//printf("out %d\n", (int)pict->data[0]);
|
|
#if 0 //?
|
|
|
|
/* Return the Picture timestamp as the frame number */
|
|
/* we substract 1 because it is added on utils.c */
|
|
avctx->frame_number = s->picture_number - 1;
|
|
#endif
|
|
#if 0
|
|
/* dont output the last pic after seeking */
|
|
if(s->last_picture_ptr || s->low_delay)
|
|
//Note this isnt a issue as a IDR pic should flush teh buffers
|
|
#endif
|
|
*data_size = sizeof(AVFrame);
|
|
return get_consumed_bytes(s, buf_index, buf_size);
|
|
}
|
|
#if 0
|
|
static inline void fill_mb_avail(H264Context *h){
|
|
MpegEncContext * const s = &h->s;
|
|
const int mb_xy= s->mb_x + s->mb_y*h->mb_stride;
|
|
|
|
if(s->mb_y){
|
|
h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - h->mb_stride - 1] == h->slice_num;
|
|
h->mb_avail[1]= h->slice_table[mb_xy - h->mb_stride ] == h->slice_num;
|
|
h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - h->mb_stride + 1] == h->slice_num;
|
|
}else{
|
|
h->mb_avail[0]=
|
|
h->mb_avail[1]=
|
|
h->mb_avail[2]= 0;
|
|
}
|
|
h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
|
|
h->mb_avail[4]= 1; //FIXME move out
|
|
h->mb_avail[5]= 0; //FIXME move out
|
|
}
|
|
#endif
|
|
|
|
#if 0 //selftest
|
|
#define COUNT 8000
|
|
#define SIZE (COUNT*40)
|
|
int main(){
|
|
int i;
|
|
uint8_t temp[SIZE];
|
|
PutBitContext pb;
|
|
GetBitContext gb;
|
|
// int int_temp[10000];
|
|
DSPContext dsp;
|
|
AVCodecContext avctx;
|
|
|
|
dsputil_init(&dsp, &avctx);
|
|
|
|
init_put_bits(&pb, temp, SIZE, NULL, NULL);
|
|
printf("testing unsigned exp golomb\n");
|
|
for(i=0; i<COUNT; i++){
|
|
START_TIMER
|
|
set_ue_golomb(&pb, i);
|
|
STOP_TIMER("set_ue_golomb");
|
|
}
|
|
flush_put_bits(&pb);
|
|
|
|
init_get_bits(&gb, temp, 8*SIZE);
|
|
for(i=0; i<COUNT; i++){
|
|
int j, s;
|
|
|
|
s= show_bits(&gb, 24);
|
|
|
|
START_TIMER
|
|
j= get_ue_golomb(&gb);
|
|
if(j != i){
|
|
printf("missmatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
|
|
// return -1;
|
|
}
|
|
STOP_TIMER("get_ue_golomb");
|
|
}
|
|
|
|
|
|
init_put_bits(&pb, temp, SIZE, NULL, NULL);
|
|
printf("testing signed exp golomb\n");
|
|
for(i=0; i<COUNT; i++){
|
|
START_TIMER
|
|
set_se_golomb(&pb, i - COUNT/2);
|
|
STOP_TIMER("set_se_golomb");
|
|
}
|
|
flush_put_bits(&pb);
|
|
|
|
init_get_bits(&gb, temp, 8*SIZE);
|
|
for(i=0; i<COUNT; i++){
|
|
int j, s;
|
|
|
|
s= show_bits(&gb, 24);
|
|
|
|
START_TIMER
|
|
j= get_se_golomb(&gb);
|
|
if(j != i - COUNT/2){
|
|
printf("missmatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
|
|
// return -1;
|
|
}
|
|
STOP_TIMER("get_se_golomb");
|
|
}
|
|
|
|
printf("testing 4x4 (I)DCT\n");
|
|
|
|
DCTELEM block[16];
|
|
uint8_t src[16], ref[16];
|
|
uint64_t error= 0, max_error=0;
|
|
|
|
for(i=0; i<COUNT; i++){
|
|
int j;
|
|
// printf("%d %d %d\n", r1, r2, (r2-r1)*16);
|
|
for(j=0; j<16; j++){
|
|
ref[j]= random()%255;
|
|
src[j]= random()%255;
|
|
}
|
|
|
|
h264_diff_dct_c(block, src, ref, 4);
|
|
|
|
//normalize
|
|
for(j=0; j<16; j++){
|
|
// printf("%d ", block[j]);
|
|
block[j]= block[j]*4;
|
|
if(j&1) block[j]= (block[j]*4 + 2)/5;
|
|
if(j&4) block[j]= (block[j]*4 + 2)/5;
|
|
}
|
|
// printf("\n");
|
|
|
|
h264_add_idct_c(ref, block, 4);
|
|
/* for(j=0; j<16; j++){
|
|
printf("%d ", ref[j]);
|
|
}
|
|
printf("\n");*/
|
|
|
|
for(j=0; j<16; j++){
|
|
int diff= ABS(src[j] - ref[j]);
|
|
|
|
error+= diff*diff;
|
|
max_error= FFMAX(max_error, diff);
|
|
}
|
|
}
|
|
printf("error=%f max_error=%d\n", ((float)error)/COUNT/16, (int)max_error );
|
|
#if 0
|
|
printf("testing quantizer\n");
|
|
for(qp=0; qp<52; qp++){
|
|
for(i=0; i<16; i++)
|
|
src1_block[i]= src2_block[i]= random()%255;
|
|
|
|
}
|
|
#endif
|
|
printf("Testing NAL layer\n");
|
|
|
|
uint8_t bitstream[COUNT];
|
|
uint8_t nal[COUNT*2];
|
|
H264Context h;
|
|
memset(&h, 0, sizeof(H264Context));
|
|
|
|
for(i=0; i<COUNT; i++){
|
|
int zeros= i;
|
|
int nal_length;
|
|
int consumed;
|
|
int out_length;
|
|
uint8_t *out;
|
|
int j;
|
|
|
|
for(j=0; j<COUNT; j++){
|
|
bitstream[j]= (random() % 255) + 1;
|
|
}
|
|
|
|
for(j=0; j<zeros; j++){
|
|
int pos= random() % COUNT;
|
|
while(bitstream[pos] == 0){
|
|
pos++;
|
|
pos %= COUNT;
|
|
}
|
|
bitstream[pos]=0;
|
|
}
|
|
|
|
START_TIMER
|
|
|
|
nal_length= encode_nal(&h, nal, bitstream, COUNT, COUNT*2);
|
|
if(nal_length<0){
|
|
printf("encoding failed\n");
|
|
return -1;
|
|
}
|
|
|
|
out= decode_nal(&h, nal, &out_length, &consumed, nal_length);
|
|
|
|
STOP_TIMER("NAL")
|
|
|
|
if(out_length != COUNT){
|
|
printf("incorrect length %d %d\n", out_length, COUNT);
|
|
return -1;
|
|
}
|
|
|
|
if(consumed != nal_length){
|
|
printf("incorrect consumed length %d %d\n", nal_length, consumed);
|
|
return -1;
|
|
}
|
|
|
|
if(memcmp(bitstream, out, COUNT)){
|
|
printf("missmatch\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
printf("Testing RBSP\n");
|
|
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
|
|
static int decode_end(AVCodecContext *avctx)
|
|
{
|
|
H264Context *h = avctx->priv_data;
|
|
MpegEncContext *s = &h->s;
|
|
|
|
free_tables(h); //FIXME cleanup init stuff perhaps
|
|
MPV_common_end(s);
|
|
|
|
// memset(h, 0, sizeof(H264Context));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
AVCodec h264_decoder = {
|
|
"h264",
|
|
CODEC_TYPE_VIDEO,
|
|
CODEC_ID_H264,
|
|
sizeof(H264Context),
|
|
decode_init,
|
|
NULL,
|
|
decode_end,
|
|
decode_frame,
|
|
/*CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | */CODEC_CAP_TRUNCATED,
|
|
};
|
|
|