mirror of https://git.ffmpeg.org/ffmpeg.git
2187 lines
81 KiB
C
2187 lines
81 KiB
C
/*
|
|
* H.26L/H.264/AVC/JVT/14496-10/... decoder
|
|
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* H.264 / AVC / MPEG4 part10 codec.
|
|
* @author Michael Niedermayer <michaelni@gmx.at>
|
|
*/
|
|
|
|
#include "libavutil/avassert.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/timer.h"
|
|
#include "internal.h"
|
|
#include "cabac.h"
|
|
#include "cabac_functions.h"
|
|
#include "error_resilience.h"
|
|
#include "avcodec.h"
|
|
#include "h264.h"
|
|
#include "h264data.h"
|
|
#include "h264chroma.h"
|
|
#include "h264_mvpred.h"
|
|
#include "golomb.h"
|
|
#include "mathops.h"
|
|
#include "mpegutils.h"
|
|
#include "rectangle.h"
|
|
#include "thread.h"
|
|
|
|
static const uint8_t field_scan[16] = {
|
|
0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
|
|
0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
|
|
2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
|
|
3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
|
|
};
|
|
|
|
static const uint8_t field_scan8x8[64] = {
|
|
0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
|
|
1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
|
|
2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
|
|
0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
|
|
2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
|
|
2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
|
|
2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
|
|
3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
|
|
3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
|
|
4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
|
|
4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
|
|
5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
|
|
5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
|
|
7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
|
|
6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
|
|
7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
|
|
};
|
|
|
|
static const uint8_t field_scan8x8_cavlc[64] = {
|
|
0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
|
|
2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
|
|
3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
|
|
5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
|
|
0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
|
|
1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
|
|
3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
|
|
5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
|
|
0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
|
|
1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
|
|
3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
|
|
5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
|
|
1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
|
|
1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
|
|
3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
|
|
6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
|
|
};
|
|
|
|
// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
|
|
static const uint8_t zigzag_scan8x8_cavlc[64] = {
|
|
0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
|
|
4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
|
|
3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
|
|
2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
|
|
1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
|
|
3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
|
|
2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
|
|
3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
|
|
0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
|
|
2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
|
|
1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
|
|
4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
|
|
0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
|
|
1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
|
|
0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
|
|
5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
|
|
};
|
|
|
|
static void release_unused_pictures(H264Context *h, int remove_current)
|
|
{
|
|
int i;
|
|
|
|
/* release non reference frames */
|
|
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
|
|
if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
|
|
(remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
|
|
ff_h264_unref_picture(h, &h->DPB[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
|
|
{
|
|
const H264Context *h = sl->h264;
|
|
int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
|
|
|
|
av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size);
|
|
// edge emu needs blocksize + filter length - 1
|
|
// (= 21x21 for h264)
|
|
av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
|
|
|
|
av_fast_malloc(&sl->top_borders[0], &sl->top_borders_allocated[0],
|
|
h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
|
|
av_fast_malloc(&sl->top_borders[1], &sl->top_borders_allocated[1],
|
|
h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
|
|
|
|
if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
|
|
!sl->top_borders[0] || !sl->top_borders[1]) {
|
|
av_freep(&sl->bipred_scratchpad);
|
|
av_freep(&sl->edge_emu_buffer);
|
|
av_freep(&sl->top_borders[0]);
|
|
av_freep(&sl->top_borders[1]);
|
|
|
|
sl->bipred_scratchpad_allocated = 0;
|
|
sl->edge_emu_buffer_allocated = 0;
|
|
sl->top_borders_allocated[0] = 0;
|
|
sl->top_borders_allocated[1] = 0;
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_table_pools(H264Context *h)
|
|
{
|
|
const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
|
|
const int mb_array_size = h->mb_stride * h->mb_height;
|
|
const int b4_stride = h->mb_width * 4 + 1;
|
|
const int b4_array_size = b4_stride * h->mb_height * 4;
|
|
|
|
h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
|
|
av_buffer_allocz);
|
|
h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) *
|
|
sizeof(uint32_t), av_buffer_allocz);
|
|
h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) *
|
|
sizeof(int16_t), av_buffer_allocz);
|
|
h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
|
|
|
|
if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
|
|
!h->ref_index_pool) {
|
|
av_buffer_pool_uninit(&h->qscale_table_pool);
|
|
av_buffer_pool_uninit(&h->mb_type_pool);
|
|
av_buffer_pool_uninit(&h->motion_val_pool);
|
|
av_buffer_pool_uninit(&h->ref_index_pool);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int alloc_picture(H264Context *h, H264Picture *pic)
|
|
{
|
|
int i, ret = 0;
|
|
|
|
av_assert0(!pic->f->data[0]);
|
|
|
|
pic->tf.f = pic->f;
|
|
ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
|
|
AV_GET_BUFFER_FLAG_REF : 0);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
if (h->avctx->hwaccel) {
|
|
const AVHWAccel *hwaccel = h->avctx->hwaccel;
|
|
av_assert0(!pic->hwaccel_picture_private);
|
|
if (hwaccel->frame_priv_data_size) {
|
|
pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size);
|
|
if (!pic->hwaccel_priv_buf)
|
|
return AVERROR(ENOMEM);
|
|
pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
|
|
}
|
|
}
|
|
|
|
if (!h->qscale_table_pool) {
|
|
ret = init_table_pools(h);
|
|
if (ret < 0)
|
|
goto fail;
|
|
}
|
|
|
|
pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
|
|
pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool);
|
|
if (!pic->qscale_table_buf || !pic->mb_type_buf)
|
|
goto fail;
|
|
|
|
pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
|
|
pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
|
|
pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool);
|
|
if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
|
|
goto fail;
|
|
|
|
pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
|
|
pic->ref_index[i] = pic->ref_index_buf[i]->data;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
ff_h264_unref_picture(h, pic);
|
|
return (ret < 0) ? ret : AVERROR(ENOMEM);
|
|
}
|
|
|
|
static inline int pic_is_unused(H264Context *h, H264Picture *pic)
|
|
{
|
|
if (!pic->f->buf[0])
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int find_unused_picture(H264Context *h)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
|
|
if (pic_is_unused(h, &h->DPB[i]))
|
|
break;
|
|
}
|
|
if (i == H264_MAX_PICTURE_COUNT)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
return i;
|
|
}
|
|
|
|
static int initialize_cur_frame(H264Context *h)
|
|
{
|
|
H264Picture *cur;
|
|
int ret;
|
|
|
|
release_unused_pictures(h, 1);
|
|
ff_h264_unref_picture(h, &h->cur_pic);
|
|
h->cur_pic_ptr = NULL;
|
|
|
|
ret = find_unused_picture(h);
|
|
if (ret < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
|
|
return ret;
|
|
}
|
|
cur = &h->DPB[ret];
|
|
|
|
ret = alloc_picture(h, cur);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = ff_h264_ref_picture(h, &h->cur_pic, cur);
|
|
if (ret < 0)
|
|
return ret;
|
|
h->cur_pic_ptr = cur;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size))))
|
|
|
|
#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
|
|
((pic && pic >= old_ctx->DPB && \
|
|
pic < old_ctx->DPB + H264_MAX_PICTURE_COUNT) ? \
|
|
&new_ctx->DPB[pic - old_ctx->DPB] : NULL)
|
|
|
|
static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
|
|
H264Context *new_base,
|
|
H264Context *old_base)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
|
|
IN_RANGE(from[i], old_base->DPB,
|
|
sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) ||
|
|
!from[i]));
|
|
to[i] = REBASE_PICTURE(from[i], new_base, old_base);
|
|
}
|
|
}
|
|
|
|
#define copy_fields(to, from, start_field, end_field) \
|
|
memcpy(&to->start_field, &from->start_field, \
|
|
(char *)&to->end_field - (char *)&to->start_field)
|
|
|
|
static int h264_slice_header_init(H264Context *h);
|
|
|
|
int ff_h264_update_thread_context(AVCodecContext *dst,
|
|
const AVCodecContext *src)
|
|
{
|
|
H264Context *h = dst->priv_data, *h1 = src->priv_data;
|
|
int inited = h->context_initialized, err = 0;
|
|
int need_reinit = 0;
|
|
int i, ret;
|
|
|
|
if (dst == src || !h1->context_initialized)
|
|
return 0;
|
|
|
|
if (!h1->ps.sps)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (inited &&
|
|
(h->width != h1->width ||
|
|
h->height != h1->height ||
|
|
h->mb_width != h1->mb_width ||
|
|
h->mb_height != h1->mb_height ||
|
|
!h->ps.sps ||
|
|
h->ps.sps->bit_depth_luma != h1->ps.sps->bit_depth_luma ||
|
|
h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
|
|
h->ps.sps->colorspace != h1->ps.sps->colorspace)) {
|
|
need_reinit = 1;
|
|
}
|
|
|
|
// SPS/PPS
|
|
for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) {
|
|
av_buffer_unref(&h->ps.sps_list[i]);
|
|
if (h1->ps.sps_list[i]) {
|
|
h->ps.sps_list[i] = av_buffer_ref(h1->ps.sps_list[i]);
|
|
if (!h->ps.sps_list[i])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) {
|
|
av_buffer_unref(&h->ps.pps_list[i]);
|
|
if (h1->ps.pps_list[i]) {
|
|
h->ps.pps_list[i] = av_buffer_ref(h1->ps.pps_list[i]);
|
|
if (!h->ps.pps_list[i])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
h->ps.sps = h1->ps.sps;
|
|
|
|
if (need_reinit || !inited) {
|
|
h->width = h1->width;
|
|
h->height = h1->height;
|
|
h->mb_height = h1->mb_height;
|
|
h->mb_width = h1->mb_width;
|
|
h->mb_num = h1->mb_num;
|
|
h->mb_stride = h1->mb_stride;
|
|
h->b_stride = h1->b_stride;
|
|
|
|
if ((err = h264_slice_header_init(h)) < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
|
|
return err;
|
|
}
|
|
|
|
/* copy block_offset since frame_start may not be called */
|
|
memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
|
|
}
|
|
|
|
h->avctx->coded_height = h1->avctx->coded_height;
|
|
h->avctx->coded_width = h1->avctx->coded_width;
|
|
h->avctx->width = h1->avctx->width;
|
|
h->avctx->height = h1->avctx->height;
|
|
h->coded_picture_number = h1->coded_picture_number;
|
|
h->first_field = h1->first_field;
|
|
h->picture_structure = h1->picture_structure;
|
|
h->droppable = h1->droppable;
|
|
h->low_delay = h1->low_delay;
|
|
|
|
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
|
|
ff_h264_unref_picture(h, &h->DPB[i]);
|
|
if (h1->DPB[i].f->buf[0] &&
|
|
(ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
|
|
return ret;
|
|
}
|
|
|
|
h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
|
|
ff_h264_unref_picture(h, &h->cur_pic);
|
|
if (h1->cur_pic.f->buf[0]) {
|
|
ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
h->enable_er = h1->enable_er;
|
|
h->workaround_bugs = h1->workaround_bugs;
|
|
h->low_delay = h1->low_delay;
|
|
h->droppable = h1->droppable;
|
|
|
|
// extradata/NAL handling
|
|
h->is_avc = h1->is_avc;
|
|
h->nal_length_size = h1->nal_length_size;
|
|
|
|
// POC timing
|
|
copy_fields(h, h1, poc_lsb, current_slice);
|
|
|
|
copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
|
|
copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
|
|
copy_picture_range(h->delayed_pic, h1->delayed_pic,
|
|
MAX_DELAYED_PIC_COUNT + 2, h, h1);
|
|
|
|
if (!h->cur_pic_ptr)
|
|
return 0;
|
|
|
|
if (!h->droppable) {
|
|
err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
|
|
h->prev_poc_msb = h->poc_msb;
|
|
h->prev_poc_lsb = h->poc_lsb;
|
|
}
|
|
h->prev_frame_num_offset = h->frame_num_offset;
|
|
h->prev_frame_num = h->frame_num;
|
|
|
|
h->recovery_frame = h1->recovery_frame;
|
|
h->frame_recovered = h1->frame_recovered;
|
|
|
|
return err;
|
|
}
|
|
|
|
static int h264_frame_start(H264Context *h)
|
|
{
|
|
H264Picture *pic;
|
|
int i, ret;
|
|
const int pixel_shift = h->pixel_shift;
|
|
|
|
ret = initialize_cur_frame(h);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
pic = h->cur_pic_ptr;
|
|
pic->reference = h->droppable ? 0 : h->picture_structure;
|
|
pic->f->coded_picture_number = h->coded_picture_number++;
|
|
pic->field_picture = h->picture_structure != PICT_FRAME;
|
|
pic->frame_num = h->frame_num;
|
|
/*
|
|
* Zero key_frame here; IDR markings per slice in frame or fields are ORed
|
|
* in later.
|
|
* See decode_nal_units().
|
|
*/
|
|
pic->f->key_frame = 0;
|
|
pic->mmco_reset = 0;
|
|
pic->recovered = 0;
|
|
|
|
if (CONFIG_ERROR_RESILIENCE && h->enable_er)
|
|
ff_er_frame_start(&h->slice_ctx[0].er);
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
|
|
h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
|
|
}
|
|
for (i = 0; i < 16; i++) {
|
|
h->block_offset[16 + i] =
|
|
h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
|
|
h->block_offset[48 + 16 + i] =
|
|
h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
|
|
}
|
|
|
|
/* Some macroblocks can be accessed before they're available in case
|
|
* of lost slices, MBAFF or threading. */
|
|
memset(h->slice_table, -1,
|
|
(h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
|
|
|
|
/* We mark the current picture as non-reference after allocating it, so
|
|
* that if we break out due to an error it can be released automatically
|
|
* in the next ff_mpv_frame_start().
|
|
*/
|
|
h->cur_pic_ptr->reference = 0;
|
|
|
|
h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
|
|
|
|
h->next_output_pic = NULL;
|
|
|
|
assert(h->cur_pic_ptr->long_ref == 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
|
|
uint8_t *src_y,
|
|
uint8_t *src_cb, uint8_t *src_cr,
|
|
int linesize, int uvlinesize,
|
|
int simple)
|
|
{
|
|
uint8_t *top_border;
|
|
int top_idx = 1;
|
|
const int pixel_shift = h->pixel_shift;
|
|
int chroma444 = CHROMA444(h);
|
|
int chroma422 = CHROMA422(h);
|
|
|
|
src_y -= linesize;
|
|
src_cb -= uvlinesize;
|
|
src_cr -= uvlinesize;
|
|
|
|
if (!simple && FRAME_MBAFF(h)) {
|
|
if (sl->mb_y & 1) {
|
|
if (!MB_MBAFF(sl)) {
|
|
top_border = sl->top_borders[0][sl->mb_x];
|
|
AV_COPY128(top_border, src_y + 15 * linesize);
|
|
if (pixel_shift)
|
|
AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
|
|
if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
|
|
if (chroma444) {
|
|
if (pixel_shift) {
|
|
AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
|
|
AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
|
|
AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
|
|
AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
|
|
} else {
|
|
AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
|
|
AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
|
|
}
|
|
} else if (chroma422) {
|
|
if (pixel_shift) {
|
|
AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
|
|
AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
|
|
} else {
|
|
AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
|
|
AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
|
|
}
|
|
} else {
|
|
if (pixel_shift) {
|
|
AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
|
|
AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
|
|
} else {
|
|
AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
|
|
AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else if (MB_MBAFF(sl)) {
|
|
top_idx = 0;
|
|
} else
|
|
return;
|
|
}
|
|
|
|
top_border = sl->top_borders[top_idx][sl->mb_x];
|
|
/* There are two lines saved, the line above the top macroblock
|
|
* of a pair, and the line above the bottom macroblock. */
|
|
AV_COPY128(top_border, src_y + 16 * linesize);
|
|
if (pixel_shift)
|
|
AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
|
|
|
|
if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
|
|
if (chroma444) {
|
|
if (pixel_shift) {
|
|
AV_COPY128(top_border + 32, src_cb + 16 * linesize);
|
|
AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
|
|
AV_COPY128(top_border + 64, src_cr + 16 * linesize);
|
|
AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
|
|
} else {
|
|
AV_COPY128(top_border + 16, src_cb + 16 * linesize);
|
|
AV_COPY128(top_border + 32, src_cr + 16 * linesize);
|
|
}
|
|
} else if (chroma422) {
|
|
if (pixel_shift) {
|
|
AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
|
|
AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
|
|
} else {
|
|
AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
|
|
AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
|
|
}
|
|
} else {
|
|
if (pixel_shift) {
|
|
AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
|
|
AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
|
|
} else {
|
|
AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
|
|
AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Initialize implicit_weight table.
|
|
* @param field 0/1 initialize the weight for interlaced MBAFF
|
|
* -1 initializes the rest
|
|
*/
|
|
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
|
|
{
|
|
int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
sl->pwt.luma_weight_flag[i] = 0;
|
|
sl->pwt.chroma_weight_flag[i] = 0;
|
|
}
|
|
|
|
if (field < 0) {
|
|
if (h->picture_structure == PICT_FRAME) {
|
|
cur_poc = h->cur_pic_ptr->poc;
|
|
} else {
|
|
cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
|
|
}
|
|
if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
|
|
sl->ref_list[0][0].poc + sl->ref_list[1][0].poc == 2 * cur_poc) {
|
|
sl->pwt.use_weight = 0;
|
|
sl->pwt.use_weight_chroma = 0;
|
|
return;
|
|
}
|
|
ref_start = 0;
|
|
ref_count0 = sl->ref_count[0];
|
|
ref_count1 = sl->ref_count[1];
|
|
} else {
|
|
cur_poc = h->cur_pic_ptr->field_poc[field];
|
|
ref_start = 16;
|
|
ref_count0 = 16 + 2 * sl->ref_count[0];
|
|
ref_count1 = 16 + 2 * sl->ref_count[1];
|
|
}
|
|
|
|
sl->pwt.use_weight = 2;
|
|
sl->pwt.use_weight_chroma = 2;
|
|
sl->pwt.luma_log2_weight_denom = 5;
|
|
sl->pwt.chroma_log2_weight_denom = 5;
|
|
|
|
for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
|
|
int poc0 = sl->ref_list[0][ref0].poc;
|
|
for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
|
|
int w = 32;
|
|
if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
|
|
int poc1 = sl->ref_list[1][ref1].poc;
|
|
int td = av_clip_int8(poc1 - poc0);
|
|
if (td) {
|
|
int tb = av_clip_int8(cur_poc - poc0);
|
|
int tx = (16384 + (FFABS(td) >> 1)) / td;
|
|
int dist_scale_factor = (tb * tx + 32) >> 8;
|
|
if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
|
|
w = 64 - dist_scale_factor;
|
|
}
|
|
}
|
|
if (field < 0) {
|
|
sl->pwt.implicit_weight[ref0][ref1][0] =
|
|
sl->pwt.implicit_weight[ref0][ref1][1] = w;
|
|
} else {
|
|
sl->pwt.implicit_weight[ref0][ref1][field] = w;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* initialize scan tables
|
|
*/
|
|
static void init_scan_tables(H264Context *h)
|
|
{
|
|
int i;
|
|
for (i = 0; i < 16; i++) {
|
|
#define TRANSPOSE(x) (x >> 2) | ((x << 2) & 0xF)
|
|
h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
|
|
h->field_scan[i] = TRANSPOSE(field_scan[i]);
|
|
#undef TRANSPOSE
|
|
}
|
|
for (i = 0; i < 64; i++) {
|
|
#define TRANSPOSE(x) (x >> 3) | ((x & 7) << 3)
|
|
h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
|
|
h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
|
|
h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
|
|
h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
|
|
#undef TRANSPOSE
|
|
}
|
|
if (h->ps.sps->transform_bypass) { // FIXME same ugly
|
|
h->zigzag_scan_q0 = ff_zigzag_scan;
|
|
h->zigzag_scan8x8_q0 = ff_zigzag_direct;
|
|
h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
|
|
h->field_scan_q0 = field_scan;
|
|
h->field_scan8x8_q0 = field_scan8x8;
|
|
h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
|
|
} else {
|
|
h->zigzag_scan_q0 = h->zigzag_scan;
|
|
h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
|
|
h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
|
|
h->field_scan_q0 = h->field_scan;
|
|
h->field_scan8x8_q0 = h->field_scan8x8;
|
|
h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
|
|
}
|
|
}
|
|
|
|
static enum AVPixelFormat get_pixel_format(H264Context *h)
|
|
{
|
|
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
|
|
CONFIG_H264_D3D11VA_HWACCEL + \
|
|
CONFIG_H264_VAAPI_HWACCEL + \
|
|
(CONFIG_H264_VDA_HWACCEL * 2) + \
|
|
CONFIG_H264_VDPAU_HWACCEL)
|
|
enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
|
|
const enum AVPixelFormat *choices = pix_fmts;
|
|
|
|
switch (h->ps.sps->bit_depth_luma) {
|
|
case 9:
|
|
if (CHROMA444(h)) {
|
|
if (h->avctx->colorspace == AVCOL_SPC_RGB) {
|
|
*fmt++ = AV_PIX_FMT_GBRP9;
|
|
} else
|
|
*fmt++ = AV_PIX_FMT_YUV444P9;
|
|
} else if (CHROMA422(h))
|
|
*fmt++ = AV_PIX_FMT_YUV422P9;
|
|
else
|
|
*fmt++ = AV_PIX_FMT_YUV420P9;
|
|
break;
|
|
case 10:
|
|
if (CHROMA444(h)) {
|
|
if (h->avctx->colorspace == AVCOL_SPC_RGB) {
|
|
*fmt++ = AV_PIX_FMT_GBRP10;
|
|
} else
|
|
*fmt++ = AV_PIX_FMT_YUV444P10;
|
|
} else if (CHROMA422(h))
|
|
*fmt++ = AV_PIX_FMT_YUV422P10;
|
|
else
|
|
*fmt++ = AV_PIX_FMT_YUV420P10;
|
|
break;
|
|
case 8:
|
|
#if CONFIG_H264_VDPAU_HWACCEL
|
|
*fmt++ = AV_PIX_FMT_VDPAU;
|
|
#endif
|
|
if (CHROMA444(h)) {
|
|
if (h->avctx->colorspace == AVCOL_SPC_RGB)
|
|
*fmt++ = AV_PIX_FMT_GBRP;
|
|
else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
|
|
*fmt++ = AV_PIX_FMT_YUVJ444P;
|
|
else
|
|
*fmt++ = AV_PIX_FMT_YUV444P;
|
|
} else if (CHROMA422(h)) {
|
|
if (h->avctx->color_range == AVCOL_RANGE_JPEG)
|
|
*fmt++ = AV_PIX_FMT_YUVJ422P;
|
|
else
|
|
*fmt++ = AV_PIX_FMT_YUV422P;
|
|
} else {
|
|
#if CONFIG_H264_DXVA2_HWACCEL
|
|
*fmt++ = AV_PIX_FMT_DXVA2_VLD;
|
|
#endif
|
|
#if CONFIG_H264_D3D11VA_HWACCEL
|
|
*fmt++ = AV_PIX_FMT_D3D11VA_VLD;
|
|
#endif
|
|
#if CONFIG_H264_VAAPI_HWACCEL
|
|
*fmt++ = AV_PIX_FMT_VAAPI;
|
|
#endif
|
|
#if CONFIG_H264_VDA_HWACCEL
|
|
*fmt++ = AV_PIX_FMT_VDA_VLD;
|
|
*fmt++ = AV_PIX_FMT_VDA;
|
|
#endif
|
|
if (h->avctx->codec->pix_fmts)
|
|
choices = h->avctx->codec->pix_fmts;
|
|
else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
|
|
*fmt++ = AV_PIX_FMT_YUVJ420P;
|
|
else
|
|
*fmt++ = AV_PIX_FMT_YUV420P;
|
|
}
|
|
break;
|
|
default:
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
*fmt = AV_PIX_FMT_NONE;
|
|
|
|
return ff_get_format(h->avctx, choices);
|
|
}
|
|
|
|
/* export coded and cropped frame dimensions to AVCodecContext */
|
|
static int init_dimensions(H264Context *h)
|
|
{
|
|
SPS *sps = h->ps.sps;
|
|
int width = h->width - (sps->crop_right + sps->crop_left);
|
|
int height = h->height - (sps->crop_top + sps->crop_bottom);
|
|
|
|
/* handle container cropping */
|
|
if (FFALIGN(h->avctx->width, 16) == FFALIGN(width, 16) &&
|
|
FFALIGN(h->avctx->height, 16) == FFALIGN(height, 16)) {
|
|
width = h->avctx->width;
|
|
height = h->avctx->height;
|
|
}
|
|
|
|
if (width <= 0 || height <= 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "Invalid cropped dimensions: %dx%d.\n",
|
|
width, height);
|
|
if (h->avctx->err_recognition & AV_EF_EXPLODE)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
av_log(h->avctx, AV_LOG_WARNING, "Ignoring cropping information.\n");
|
|
sps->crop_bottom =
|
|
sps->crop_top =
|
|
sps->crop_right =
|
|
sps->crop_left =
|
|
sps->crop = 0;
|
|
|
|
width = h->width;
|
|
height = h->height;
|
|
}
|
|
|
|
h->avctx->coded_width = h->width;
|
|
h->avctx->coded_height = h->height;
|
|
h->avctx->width = width;
|
|
h->avctx->height = height;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int h264_slice_header_init(H264Context *h)
|
|
{
|
|
const SPS *sps = h->ps.sps;
|
|
int nb_slices = (HAVE_THREADS &&
|
|
h->avctx->active_thread_type & FF_THREAD_SLICE) ?
|
|
h->avctx->thread_count : 1;
|
|
int i, ret;
|
|
|
|
ff_set_sar(h->avctx, sps->sar);
|
|
av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
|
|
&h->chroma_x_shift, &h->chroma_y_shift);
|
|
|
|
if (sps->timing_info_present_flag) {
|
|
int64_t den = sps->time_scale;
|
|
if (h->x264_build < 44U)
|
|
den *= 2;
|
|
av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
|
|
sps->num_units_in_tick, den, 1 << 30);
|
|
}
|
|
|
|
ff_h264_free_tables(h);
|
|
|
|
h->first_field = 0;
|
|
h->prev_interlaced_frame = 1;
|
|
|
|
init_scan_tables(h);
|
|
ret = ff_h264_alloc_tables(h);
|
|
if (ret < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
|
|
return ret;
|
|
}
|
|
|
|
if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 10) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
|
|
sps->bit_depth_luma);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
|
|
h->pixel_shift = sps->bit_depth_luma > 8;
|
|
h->chroma_format_idc = sps->chroma_format_idc;
|
|
h->bit_depth_luma = sps->bit_depth_luma;
|
|
|
|
ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
|
|
sps->chroma_format_idc);
|
|
ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
|
|
ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
|
|
ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma,
|
|
sps->chroma_format_idc);
|
|
ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
|
|
|
|
if (nb_slices > H264_MAX_THREADS || (nb_slices > h->mb_height && h->mb_height)) {
|
|
int max_slices;
|
|
if (h->mb_height)
|
|
max_slices = FFMIN(H264_MAX_THREADS, h->mb_height);
|
|
else
|
|
max_slices = H264_MAX_THREADS;
|
|
av_log(h->avctx, AV_LOG_WARNING, "too many threads/slices %d,"
|
|
" reducing to %d\n", nb_slices, max_slices);
|
|
nb_slices = max_slices;
|
|
}
|
|
h->slice_context_count = nb_slices;
|
|
|
|
if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
|
|
ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]);
|
|
if (ret < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
|
|
return ret;
|
|
}
|
|
} else {
|
|
for (i = 0; i < h->slice_context_count; i++) {
|
|
H264SliceContext *sl = &h->slice_ctx[i];
|
|
|
|
sl->h264 = h;
|
|
sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
|
|
sl->mvd_table[0] = h->mvd_table[0] + i * 8 * 2 * h->mb_stride;
|
|
sl->mvd_table[1] = h->mvd_table[1] + i * 8 * 2 * h->mb_stride;
|
|
|
|
if ((ret = ff_h264_slice_context_init(h, sl)) < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
h->context_initialized = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Decode a slice header.
|
|
* This will (re)intialize the decoder and call h264_frame_start() as needed.
|
|
*
|
|
* @param h h264context
|
|
*
|
|
* @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
|
|
*/
|
|
int ff_h264_decode_slice_header(H264Context *h, H264SliceContext *sl)
|
|
{
|
|
const SPS *sps;
|
|
const PPS *pps;
|
|
unsigned int first_mb_in_slice;
|
|
unsigned int pps_id;
|
|
int ret;
|
|
unsigned int slice_type, tmp, i, j;
|
|
int last_pic_structure, last_pic_droppable;
|
|
int needs_reinit = 0;
|
|
int field_pic_flag, bottom_field_flag;
|
|
int frame_num, droppable, picture_structure;
|
|
int mb_aff_frame = 0;
|
|
|
|
h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;
|
|
h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;
|
|
|
|
first_mb_in_slice = get_ue_golomb(&sl->gb);
|
|
|
|
if (first_mb_in_slice == 0) { // FIXME better field boundary detection
|
|
if (h->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {
|
|
ff_h264_field_end(h, sl, 1);
|
|
}
|
|
|
|
h->current_slice = 0;
|
|
if (!h->first_field) {
|
|
if (h->cur_pic_ptr && !h->droppable) {
|
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
|
|
h->picture_structure == PICT_BOTTOM_FIELD);
|
|
}
|
|
h->cur_pic_ptr = NULL;
|
|
}
|
|
}
|
|
|
|
slice_type = get_ue_golomb_31(&sl->gb);
|
|
if (slice_type > 9) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"slice type %d too large at %d\n",
|
|
slice_type, first_mb_in_slice);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (slice_type > 4) {
|
|
slice_type -= 5;
|
|
sl->slice_type_fixed = 1;
|
|
} else
|
|
sl->slice_type_fixed = 0;
|
|
|
|
slice_type = ff_h264_golomb_to_pict_type[slice_type];
|
|
sl->slice_type = slice_type;
|
|
sl->slice_type_nos = slice_type & 3;
|
|
|
|
if (h->nal_unit_type == NAL_IDR_SLICE &&
|
|
sl->slice_type_nos != AV_PICTURE_TYPE_I) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
// to make a few old functions happy, it's wrong though
|
|
if (!h->setup_finished)
|
|
h->pict_type = sl->slice_type;
|
|
|
|
pps_id = get_ue_golomb(&sl->gb);
|
|
if (pps_id >= MAX_PPS_COUNT) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (!h->ps.pps_list[pps_id]) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"non-existing PPS %u referenced\n",
|
|
pps_id);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (!h->setup_finished) {
|
|
h->ps.pps = (const PPS*)h->ps.pps_list[pps_id]->data;
|
|
} else if (h->ps.pps != (const PPS*)h->ps.pps_list[pps_id]->data) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (!h->ps.sps_list[h->ps.pps->sps_id]) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"non-existing SPS %u referenced\n",
|
|
h->ps.pps->sps_id);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (h->ps.sps != (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data) {
|
|
h->ps.sps = (SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data;
|
|
|
|
if (h->bit_depth_luma != h->ps.sps->bit_depth_luma ||
|
|
h->chroma_format_idc != h->ps.sps->chroma_format_idc)
|
|
needs_reinit = 1;
|
|
|
|
if (h->flags & AV_CODEC_FLAG_LOW_DELAY ||
|
|
(h->ps.sps->bitstream_restriction_flag &&
|
|
!h->ps.sps->num_reorder_frames)) {
|
|
if (h->avctx->has_b_frames > 1 || h->delayed_pic[0])
|
|
av_log(h->avctx, AV_LOG_WARNING, "Delayed frames seen. "
|
|
"Reenabling low delay requires a codec flush.\n");
|
|
else
|
|
h->low_delay = 1;
|
|
}
|
|
|
|
if (h->avctx->has_b_frames < 2)
|
|
h->avctx->has_b_frames = !h->low_delay;
|
|
|
|
}
|
|
|
|
pps = h->ps.pps;
|
|
sps = h->ps.sps;
|
|
|
|
if (!h->setup_finished) {
|
|
h->avctx->profile = ff_h264_get_profile(sps);
|
|
h->avctx->level = sps->level_idc;
|
|
h->avctx->refs = sps->ref_frame_count;
|
|
|
|
if (h->mb_width != sps->mb_width ||
|
|
h->mb_height != sps->mb_height * (2 - sps->frame_mbs_only_flag))
|
|
needs_reinit = 1;
|
|
|
|
h->mb_width = sps->mb_width;
|
|
h->mb_height = sps->mb_height * (2 - sps->frame_mbs_only_flag);
|
|
h->mb_num = h->mb_width * h->mb_height;
|
|
h->mb_stride = h->mb_width + 1;
|
|
|
|
h->b_stride = h->mb_width * 4;
|
|
|
|
h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
|
|
|
|
h->width = 16 * h->mb_width;
|
|
h->height = 16 * h->mb_height;
|
|
|
|
ret = init_dimensions(h);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (sps->video_signal_type_present_flag) {
|
|
h->avctx->color_range = sps->full_range ? AVCOL_RANGE_JPEG
|
|
: AVCOL_RANGE_MPEG;
|
|
if (sps->colour_description_present_flag) {
|
|
if (h->avctx->colorspace != sps->colorspace)
|
|
needs_reinit = 1;
|
|
h->avctx->color_primaries = sps->color_primaries;
|
|
h->avctx->color_trc = sps->color_trc;
|
|
h->avctx->colorspace = sps->colorspace;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (h->context_initialized && needs_reinit) {
|
|
h->context_initialized = 0;
|
|
if (sl != h->slice_ctx) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"changing width %d -> %d / height %d -> %d on "
|
|
"slice %d\n",
|
|
h->width, h->avctx->coded_width,
|
|
h->height, h->avctx->coded_height,
|
|
h->current_slice + 1);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
ff_h264_flush_change(h);
|
|
|
|
if ((ret = get_pixel_format(h)) < 0)
|
|
return ret;
|
|
h->avctx->pix_fmt = ret;
|
|
|
|
av_log(h->avctx, AV_LOG_INFO, "Reinit context to %dx%d, "
|
|
"pix_fmt: %d\n", h->width, h->height, h->avctx->pix_fmt);
|
|
|
|
if ((ret = h264_slice_header_init(h)) < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"h264_slice_header_init() failed\n");
|
|
return ret;
|
|
}
|
|
}
|
|
if (!h->context_initialized) {
|
|
if (sl != h->slice_ctx) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"Cannot (re-)initialize context during parallel decoding.\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
if ((ret = get_pixel_format(h)) < 0)
|
|
return ret;
|
|
h->avctx->pix_fmt = ret;
|
|
|
|
if ((ret = h264_slice_header_init(h)) < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"h264_slice_header_init() failed\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
|
|
if (!h->setup_finished)
|
|
h->frame_num = frame_num;
|
|
|
|
sl->mb_mbaff = 0;
|
|
|
|
last_pic_structure = h->picture_structure;
|
|
last_pic_droppable = h->droppable;
|
|
|
|
droppable = h->nal_ref_idc == 0;
|
|
if (sps->frame_mbs_only_flag) {
|
|
picture_structure = PICT_FRAME;
|
|
} else {
|
|
field_pic_flag = get_bits1(&sl->gb);
|
|
if (field_pic_flag) {
|
|
bottom_field_flag = get_bits1(&sl->gb);
|
|
picture_structure = PICT_TOP_FIELD + bottom_field_flag;
|
|
} else {
|
|
picture_structure = PICT_FRAME;
|
|
mb_aff_frame = sps->mb_aff;
|
|
}
|
|
}
|
|
if (!h->setup_finished) {
|
|
h->droppable = droppable;
|
|
h->picture_structure = picture_structure;
|
|
h->mb_aff_frame = mb_aff_frame;
|
|
}
|
|
sl->mb_field_decoding_flag = h->picture_structure != PICT_FRAME;
|
|
|
|
if (h->current_slice != 0) {
|
|
if (last_pic_structure != picture_structure ||
|
|
last_pic_droppable != droppable) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"Changing field mode (%d -> %d) between slices is not allowed\n",
|
|
last_pic_structure, h->picture_structure);
|
|
return AVERROR_INVALIDDATA;
|
|
} else if (!h->cur_pic_ptr) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"unset cur_pic_ptr on slice %d\n",
|
|
h->current_slice + 1);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
} else {
|
|
/* Shorten frame num gaps so we don't have to allocate reference
|
|
* frames just to throw them away */
|
|
if (h->frame_num != h->prev_frame_num) {
|
|
int unwrap_prev_frame_num = h->prev_frame_num;
|
|
int max_frame_num = 1 << sps->log2_max_frame_num;
|
|
|
|
if (unwrap_prev_frame_num > h->frame_num)
|
|
unwrap_prev_frame_num -= max_frame_num;
|
|
|
|
if ((h->frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
|
|
unwrap_prev_frame_num = (h->frame_num - sps->ref_frame_count) - 1;
|
|
if (unwrap_prev_frame_num < 0)
|
|
unwrap_prev_frame_num += max_frame_num;
|
|
|
|
h->prev_frame_num = unwrap_prev_frame_num;
|
|
}
|
|
}
|
|
|
|
/* See if we have a decoded first field looking for a pair...
|
|
* Here, we're using that to see if we should mark previously
|
|
* decode frames as "finished".
|
|
* We have to do that before the "dummy" in-between frame allocation,
|
|
* since that can modify s->current_picture_ptr. */
|
|
if (h->first_field) {
|
|
assert(h->cur_pic_ptr);
|
|
assert(h->cur_pic_ptr->f->buf[0]);
|
|
assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
|
|
|
|
/* figure out if we have a complementary field pair */
|
|
if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
|
|
/* Previous field is unmatched. Don't display it, but let it
|
|
* remain for reference if marked as such. */
|
|
if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
|
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
|
|
last_pic_structure == PICT_TOP_FIELD);
|
|
}
|
|
} else {
|
|
if (h->cur_pic_ptr->frame_num != h->frame_num) {
|
|
/* This and previous field were reference, but had
|
|
* different frame_nums. Consider this field first in
|
|
* pair. Throw away previous field except for reference
|
|
* purposes. */
|
|
if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
|
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
|
|
last_pic_structure == PICT_TOP_FIELD);
|
|
}
|
|
} else {
|
|
/* Second field in complementary pair */
|
|
if (!((last_pic_structure == PICT_TOP_FIELD &&
|
|
h->picture_structure == PICT_BOTTOM_FIELD) ||
|
|
(last_pic_structure == PICT_BOTTOM_FIELD &&
|
|
h->picture_structure == PICT_TOP_FIELD))) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"Invalid field mode combination %d/%d\n",
|
|
last_pic_structure, h->picture_structure);
|
|
h->picture_structure = last_pic_structure;
|
|
h->droppable = last_pic_droppable;
|
|
return AVERROR_INVALIDDATA;
|
|
} else if (last_pic_droppable != h->droppable) {
|
|
avpriv_request_sample(h->avctx,
|
|
"Found reference and non-reference fields in the same frame, which");
|
|
h->picture_structure = last_pic_structure;
|
|
h->droppable = last_pic_droppable;
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
while (h->frame_num != h->prev_frame_num &&
|
|
h->frame_num != (h->prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
|
|
H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
|
|
av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
|
|
h->frame_num, h->prev_frame_num);
|
|
ret = initialize_cur_frame(h);
|
|
if (ret < 0) {
|
|
h->first_field = 0;
|
|
return ret;
|
|
}
|
|
|
|
h->prev_frame_num++;
|
|
h->prev_frame_num %= 1 << sps->log2_max_frame_num;
|
|
h->cur_pic_ptr->frame_num = h->prev_frame_num;
|
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
|
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
|
|
ret = ff_generate_sliding_window_mmcos(h, 1);
|
|
if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
|
|
return ret;
|
|
ret = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
|
|
if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
|
|
return ret;
|
|
/* Error concealment: If a ref is missing, copy the previous ref
|
|
* in its place.
|
|
* FIXME: Avoiding a memcpy would be nice, but ref handling makes
|
|
* many assumptions about there being no actual duplicates.
|
|
* FIXME: This does not copy padding for out-of-frame motion
|
|
* vectors. Given we are concealing a lost frame, this probably
|
|
* is not noticeable by comparison, but it should be fixed. */
|
|
if (h->short_ref_count) {
|
|
if (prev &&
|
|
h->short_ref[0]->f->width == prev->f->width &&
|
|
h->short_ref[0]->f->height == prev->f->height &&
|
|
h->short_ref[0]->f->format == prev->f->format) {
|
|
av_image_copy(h->short_ref[0]->f->data,
|
|
h->short_ref[0]->f->linesize,
|
|
(const uint8_t **)prev->f->data,
|
|
prev->f->linesize,
|
|
prev->f->format,
|
|
h->mb_width * 16,
|
|
h->mb_height * 16);
|
|
h->short_ref[0]->poc = prev->poc + 2;
|
|
}
|
|
h->short_ref[0]->frame_num = h->prev_frame_num;
|
|
}
|
|
}
|
|
|
|
/* See if we have a decoded first field looking for a pair...
|
|
* We're using that to see whether to continue decoding in that
|
|
* frame, or to allocate a new one. */
|
|
if (h->first_field) {
|
|
assert(h->cur_pic_ptr);
|
|
assert(h->cur_pic_ptr->f->buf[0]);
|
|
assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
|
|
|
|
/* figure out if we have a complementary field pair */
|
|
if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
|
|
/* Previous field is unmatched. Don't display it, but let it
|
|
* remain for reference if marked as such. */
|
|
h->cur_pic_ptr = NULL;
|
|
h->first_field = FIELD_PICTURE(h);
|
|
} else {
|
|
if (h->cur_pic_ptr->frame_num != h->frame_num) {
|
|
/* This and the previous field had different frame_nums.
|
|
* Consider this field first in pair. Throw away previous
|
|
* one except for reference purposes. */
|
|
h->first_field = 1;
|
|
h->cur_pic_ptr = NULL;
|
|
} else {
|
|
/* Second field in complementary pair */
|
|
h->first_field = 0;
|
|
}
|
|
}
|
|
} else {
|
|
/* Frame or first field in a potentially complementary pair */
|
|
h->first_field = FIELD_PICTURE(h);
|
|
}
|
|
|
|
if (!FIELD_PICTURE(h) || h->first_field) {
|
|
if (h264_frame_start(h) < 0) {
|
|
h->first_field = 0;
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
} else {
|
|
release_unused_pictures(h, 0);
|
|
}
|
|
}
|
|
|
|
assert(h->mb_num == h->mb_width * h->mb_height);
|
|
if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
|
|
first_mb_in_slice >= h->mb_num) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
sl->resync_mb_x = sl->mb_x = first_mb_in_slice % h->mb_width;
|
|
sl->resync_mb_y = sl->mb_y = (first_mb_in_slice / h->mb_width) <<
|
|
FIELD_OR_MBAFF_PICTURE(h);
|
|
if (h->picture_structure == PICT_BOTTOM_FIELD)
|
|
sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
|
|
assert(sl->mb_y < h->mb_height);
|
|
|
|
if (h->picture_structure == PICT_FRAME) {
|
|
h->curr_pic_num = h->frame_num;
|
|
h->max_pic_num = 1 << sps->log2_max_frame_num;
|
|
} else {
|
|
h->curr_pic_num = 2 * h->frame_num + 1;
|
|
h->max_pic_num = 1 << (sps->log2_max_frame_num + 1);
|
|
}
|
|
|
|
if (h->nal_unit_type == NAL_IDR_SLICE)
|
|
get_ue_golomb(&sl->gb); /* idr_pic_id */
|
|
|
|
if (sps->poc_type == 0) {
|
|
int poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
|
|
|
|
if (!h->setup_finished)
|
|
h->poc_lsb = poc_lsb;
|
|
|
|
if (pps->pic_order_present == 1 && h->picture_structure == PICT_FRAME) {
|
|
int delta_poc_bottom = get_se_golomb(&sl->gb);
|
|
if (!h->setup_finished)
|
|
h->delta_poc_bottom = delta_poc_bottom;
|
|
}
|
|
}
|
|
|
|
if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
|
|
int delta_poc = get_se_golomb(&sl->gb);
|
|
|
|
if (!h->setup_finished)
|
|
h->delta_poc[0] = delta_poc;
|
|
|
|
if (pps->pic_order_present == 1 && h->picture_structure == PICT_FRAME) {
|
|
delta_poc = get_se_golomb(&sl->gb);
|
|
|
|
if (!h->setup_finished)
|
|
h->delta_poc[1] = delta_poc;
|
|
}
|
|
}
|
|
|
|
if (!h->setup_finished)
|
|
ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc);
|
|
|
|
if (pps->redundant_pic_cnt_present)
|
|
sl->redundant_pic_count = get_ue_golomb(&sl->gb);
|
|
|
|
if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
|
|
sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
|
|
|
|
ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
|
|
&sl->gb, pps, sl->slice_type_nos,
|
|
h->picture_structure);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
|
|
ret = ff_h264_decode_ref_pic_list_reordering(h, sl);
|
|
if (ret < 0) {
|
|
sl->ref_count[1] = sl->ref_count[0] = 0;
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
|
|
(pps->weighted_bipred_idc == 1 &&
|
|
sl->slice_type_nos == AV_PICTURE_TYPE_B))
|
|
ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
|
|
sl->slice_type_nos, &sl->pwt);
|
|
else if (pps->weighted_bipred_idc == 2 &&
|
|
sl->slice_type_nos == AV_PICTURE_TYPE_B) {
|
|
implicit_weight_table(h, sl, -1);
|
|
} else {
|
|
sl->pwt.use_weight = 0;
|
|
for (i = 0; i < 2; i++) {
|
|
sl->pwt.luma_weight_flag[i] = 0;
|
|
sl->pwt.chroma_weight_flag[i] = 0;
|
|
}
|
|
}
|
|
|
|
// If frame-mt is enabled, only update mmco tables for the first slice
|
|
// in a field. Subsequent slices can temporarily clobber h->mmco_index
|
|
// or h->mmco, which will cause ref list mix-ups and decoding errors
|
|
// further down the line. This may break decoding if the first slice is
|
|
// corrupt, thus we only do this if frame-mt is enabled.
|
|
if (h->nal_ref_idc) {
|
|
ret = ff_h264_decode_ref_pic_marking(h, &sl->gb,
|
|
!(h->avctx->active_thread_type & FF_THREAD_FRAME) ||
|
|
h->current_slice == 0);
|
|
if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (FRAME_MBAFF(h)) {
|
|
ff_h264_fill_mbaff_ref_list(h, sl);
|
|
|
|
if (pps->weighted_bipred_idc == 2 && sl->slice_type_nos == AV_PICTURE_TYPE_B) {
|
|
implicit_weight_table(h, sl, 0);
|
|
implicit_weight_table(h, sl, 1);
|
|
}
|
|
}
|
|
|
|
if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
|
|
ff_h264_direct_dist_scale_factor(h, sl);
|
|
ff_h264_direct_ref_list_init(h, sl);
|
|
|
|
if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
|
|
tmp = get_ue_golomb_31(&sl->gb);
|
|
if (tmp > 2) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
sl->cabac_init_idc = tmp;
|
|
}
|
|
|
|
sl->last_qscale_diff = 0;
|
|
tmp = pps->init_qp + get_se_golomb(&sl->gb);
|
|
if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
sl->qscale = tmp;
|
|
sl->chroma_qp[0] = get_chroma_qp(h, 0, sl->qscale);
|
|
sl->chroma_qp[1] = get_chroma_qp(h, 1, sl->qscale);
|
|
// FIXME qscale / qp ... stuff
|
|
if (sl->slice_type == AV_PICTURE_TYPE_SP)
|
|
get_bits1(&sl->gb); /* sp_for_switch_flag */
|
|
if (sl->slice_type == AV_PICTURE_TYPE_SP ||
|
|
sl->slice_type == AV_PICTURE_TYPE_SI)
|
|
get_se_golomb(&sl->gb); /* slice_qs_delta */
|
|
|
|
sl->deblocking_filter = 1;
|
|
sl->slice_alpha_c0_offset = 0;
|
|
sl->slice_beta_offset = 0;
|
|
if (pps->deblocking_filter_parameters_present) {
|
|
tmp = get_ue_golomb_31(&sl->gb);
|
|
if (tmp > 2) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"deblocking_filter_idc %u out of range\n", tmp);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
sl->deblocking_filter = tmp;
|
|
if (sl->deblocking_filter < 2)
|
|
sl->deblocking_filter ^= 1; // 1<->0
|
|
|
|
if (sl->deblocking_filter) {
|
|
sl->slice_alpha_c0_offset = get_se_golomb(&sl->gb) * 2;
|
|
sl->slice_beta_offset = get_se_golomb(&sl->gb) * 2;
|
|
if (sl->slice_alpha_c0_offset > 12 ||
|
|
sl->slice_alpha_c0_offset < -12 ||
|
|
sl->slice_beta_offset > 12 ||
|
|
sl->slice_beta_offset < -12) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"deblocking filter parameters %d %d out of range\n",
|
|
sl->slice_alpha_c0_offset, sl->slice_beta_offset);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
|
|
(h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
|
|
sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
|
|
(h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
|
|
sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
|
|
(h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
|
|
h->nal_ref_idc == 0))
|
|
sl->deblocking_filter = 0;
|
|
|
|
if (sl->deblocking_filter == 1 && h->max_contexts > 1) {
|
|
if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
|
|
/* Cheat slightly for speed:
|
|
* Do not bother to deblock across slices. */
|
|
sl->deblocking_filter = 2;
|
|
} else {
|
|
h->max_contexts = 1;
|
|
if (!h->single_decode_warning) {
|
|
av_log(h->avctx, AV_LOG_INFO,
|
|
"Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
|
|
h->single_decode_warning = 1;
|
|
}
|
|
if (sl != h->slice_ctx) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"Deblocking switched inside frame.\n");
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
sl->qp_thresh = 15 -
|
|
FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
|
|
FFMAX3(0,
|
|
pps->chroma_qp_index_offset[0],
|
|
pps->chroma_qp_index_offset[1]) +
|
|
6 * (sps->bit_depth_luma - 8);
|
|
|
|
sl->slice_num = ++h->current_slice;
|
|
if (sl->slice_num >= MAX_SLICES) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"Too many slices, increase MAX_SLICES and recompile\n");
|
|
}
|
|
|
|
for (j = 0; j < 2; j++) {
|
|
int id_list[16];
|
|
int *ref2frm = sl->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
|
|
for (i = 0; i < 16; i++) {
|
|
id_list[i] = 60;
|
|
if (j < sl->list_count && i < sl->ref_count[j] &&
|
|
sl->ref_list[j][i].parent->f->buf[0]) {
|
|
int k;
|
|
AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
|
|
for (k = 0; k < h->short_ref_count; k++)
|
|
if (h->short_ref[k]->f->buf[0]->buffer == buf) {
|
|
id_list[i] = k;
|
|
break;
|
|
}
|
|
for (k = 0; k < h->long_ref_count; k++)
|
|
if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
|
|
id_list[i] = h->short_ref_count + k;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
ref2frm[0] =
|
|
ref2frm[1] = -1;
|
|
for (i = 0; i < 16; i++)
|
|
ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
|
|
ref2frm[18 + 0] =
|
|
ref2frm[18 + 1] = -1;
|
|
for (i = 16; i < 48; i++)
|
|
ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
|
|
(sl->ref_list[j][i].reference & 3);
|
|
}
|
|
|
|
if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
|
|
av_log(h->avctx, AV_LOG_DEBUG,
|
|
"slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
|
|
sl->slice_num,
|
|
(h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
|
|
first_mb_in_slice,
|
|
av_get_picture_type_char(sl->slice_type),
|
|
sl->slice_type_fixed ? " fix" : "",
|
|
h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
|
|
pps_id, h->frame_num,
|
|
h->cur_pic_ptr->field_poc[0],
|
|
h->cur_pic_ptr->field_poc[1],
|
|
sl->ref_count[0], sl->ref_count[1],
|
|
sl->qscale,
|
|
sl->deblocking_filter,
|
|
sl->slice_alpha_c0_offset, sl->slice_beta_offset,
|
|
sl->pwt.use_weight,
|
|
sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
|
|
sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_h264_get_slice_type(const H264SliceContext *sl)
|
|
{
|
|
switch (sl->slice_type) {
|
|
case AV_PICTURE_TYPE_P:
|
|
return 0;
|
|
case AV_PICTURE_TYPE_B:
|
|
return 1;
|
|
case AV_PICTURE_TYPE_I:
|
|
return 2;
|
|
case AV_PICTURE_TYPE_SP:
|
|
return 3;
|
|
case AV_PICTURE_TYPE_SI:
|
|
return 4;
|
|
default:
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
|
|
static av_always_inline void fill_filter_caches_inter(const H264Context *h,
|
|
H264SliceContext *sl,
|
|
int mb_type, int top_xy,
|
|
int left_xy[LEFT_MBS],
|
|
int top_type,
|
|
int left_type[LEFT_MBS],
|
|
int mb_xy, int list)
|
|
{
|
|
int b_stride = h->b_stride;
|
|
int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
|
|
int8_t *ref_cache = &sl->ref_cache[list][scan8[0]];
|
|
if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
|
|
if (USES_LIST(top_type, list)) {
|
|
const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
|
|
const int b8_xy = 4 * top_xy + 2;
|
|
int (*ref2frm)[64] = sl->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][0] + (MB_MBAFF(sl) ? 20 : 2);
|
|
AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
|
|
ref_cache[0 - 1 * 8] =
|
|
ref_cache[1 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 0]];
|
|
ref_cache[2 - 1 * 8] =
|
|
ref_cache[3 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 1]];
|
|
} else {
|
|
AV_ZERO128(mv_dst - 1 * 8);
|
|
AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
|
|
}
|
|
|
|
if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
|
|
if (USES_LIST(left_type[LTOP], list)) {
|
|
const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
|
|
const int b8_xy = 4 * left_xy[LTOP] + 1;
|
|
int (*ref2frm)[64] = sl->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][0] + (MB_MBAFF(sl) ? 20 : 2);
|
|
AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
|
|
AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
|
|
AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
|
|
AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
|
|
ref_cache[-1 + 0] =
|
|
ref_cache[-1 + 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
|
|
ref_cache[-1 + 16] =
|
|
ref_cache[-1 + 24] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
|
|
} else {
|
|
AV_ZERO32(mv_dst - 1 + 0);
|
|
AV_ZERO32(mv_dst - 1 + 8);
|
|
AV_ZERO32(mv_dst - 1 + 16);
|
|
AV_ZERO32(mv_dst - 1 + 24);
|
|
ref_cache[-1 + 0] =
|
|
ref_cache[-1 + 8] =
|
|
ref_cache[-1 + 16] =
|
|
ref_cache[-1 + 24] = LIST_NOT_USED;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!USES_LIST(mb_type, list)) {
|
|
fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
|
|
AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
|
|
AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
|
|
AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
|
|
AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
|
|
return;
|
|
}
|
|
|
|
{
|
|
int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
|
|
int (*ref2frm)[64] = sl->ref2frm[sl->slice_num & (MAX_SLICES - 1)][0] + (MB_MBAFF(sl) ? 20 : 2);
|
|
uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]], ref2frm[list][ref[1]]) & 0x00FF00FF) * 0x0101;
|
|
uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]], ref2frm[list][ref[3]]) & 0x00FF00FF) * 0x0101;
|
|
AV_WN32A(&ref_cache[0 * 8], ref01);
|
|
AV_WN32A(&ref_cache[1 * 8], ref01);
|
|
AV_WN32A(&ref_cache[2 * 8], ref23);
|
|
AV_WN32A(&ref_cache[3 * 8], ref23);
|
|
}
|
|
|
|
{
|
|
int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
|
|
AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
|
|
AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
|
|
AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
|
|
AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return non zero if the loop filter can be skipped
|
|
*/
|
|
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
|
|
{
|
|
const int mb_xy = sl->mb_xy;
|
|
int top_xy, left_xy[LEFT_MBS];
|
|
int top_type, left_type[LEFT_MBS];
|
|
uint8_t *nnz;
|
|
uint8_t *nnz_cache;
|
|
|
|
top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
|
|
|
|
/* Wow, what a mess, why didn't they simplify the interlacing & intra
|
|
* stuff, I can't imagine that these complex rules are worth it. */
|
|
|
|
left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
|
|
if (FRAME_MBAFF(h)) {
|
|
const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
|
|
const int curr_mb_field_flag = IS_INTERLACED(mb_type);
|
|
if (sl->mb_y & 1) {
|
|
if (left_mb_field_flag != curr_mb_field_flag)
|
|
left_xy[LTOP] -= h->mb_stride;
|
|
} else {
|
|
if (curr_mb_field_flag)
|
|
top_xy += h->mb_stride &
|
|
(((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
|
|
if (left_mb_field_flag != curr_mb_field_flag)
|
|
left_xy[LBOT] += h->mb_stride;
|
|
}
|
|
}
|
|
|
|
sl->top_mb_xy = top_xy;
|
|
sl->left_mb_xy[LTOP] = left_xy[LTOP];
|
|
sl->left_mb_xy[LBOT] = left_xy[LBOT];
|
|
{
|
|
/* For sufficiently low qp, filtering wouldn't do anything.
|
|
* This is a conservative estimate: could also check beta_offset
|
|
* and more accurate chroma_qp. */
|
|
int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
|
|
int qp = h->cur_pic.qscale_table[mb_xy];
|
|
if (qp <= qp_thresh &&
|
|
(left_xy[LTOP] < 0 ||
|
|
((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
|
|
(top_xy < 0 ||
|
|
((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
|
|
if (!FRAME_MBAFF(h))
|
|
return 1;
|
|
if ((left_xy[LTOP] < 0 ||
|
|
((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
|
|
(top_xy < h->mb_stride ||
|
|
((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
top_type = h->cur_pic.mb_type[top_xy];
|
|
left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
|
|
left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
|
|
if (sl->deblocking_filter == 2) {
|
|
if (h->slice_table[top_xy] != sl->slice_num)
|
|
top_type = 0;
|
|
if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
|
|
left_type[LTOP] = left_type[LBOT] = 0;
|
|
} else {
|
|
if (h->slice_table[top_xy] == 0xFFFF)
|
|
top_type = 0;
|
|
if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
|
|
left_type[LTOP] = left_type[LBOT] = 0;
|
|
}
|
|
sl->top_type = top_type;
|
|
sl->left_type[LTOP] = left_type[LTOP];
|
|
sl->left_type[LBOT] = left_type[LBOT];
|
|
|
|
if (IS_INTRA(mb_type))
|
|
return 0;
|
|
|
|
fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
|
|
top_type, left_type, mb_xy, 0);
|
|
if (sl->list_count == 2)
|
|
fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
|
|
top_type, left_type, mb_xy, 1);
|
|
|
|
nnz = h->non_zero_count[mb_xy];
|
|
nnz_cache = sl->non_zero_count_cache;
|
|
AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
|
|
AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
|
|
AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
|
|
AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
|
|
sl->cbp = h->cbp_table[mb_xy];
|
|
|
|
if (top_type) {
|
|
nnz = h->non_zero_count[top_xy];
|
|
AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
|
|
}
|
|
|
|
if (left_type[LTOP]) {
|
|
nnz = h->non_zero_count[left_xy[LTOP]];
|
|
nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
|
|
nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
|
|
nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
|
|
nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
|
|
}
|
|
|
|
/* CAVLC 8x8dct requires NNZ values for residual decoding that differ
|
|
* from what the loop filter needs */
|
|
if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
|
|
if (IS_8x8DCT(top_type)) {
|
|
nnz_cache[4 + 8 * 0] =
|
|
nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
|
|
nnz_cache[6 + 8 * 0] =
|
|
nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
|
|
}
|
|
if (IS_8x8DCT(left_type[LTOP])) {
|
|
nnz_cache[3 + 8 * 1] =
|
|
nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
|
|
}
|
|
if (IS_8x8DCT(left_type[LBOT])) {
|
|
nnz_cache[3 + 8 * 3] =
|
|
nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
|
|
}
|
|
|
|
if (IS_8x8DCT(mb_type)) {
|
|
nnz_cache[scan8[0]] =
|
|
nnz_cache[scan8[1]] =
|
|
nnz_cache[scan8[2]] =
|
|
nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
|
|
|
|
nnz_cache[scan8[0 + 4]] =
|
|
nnz_cache[scan8[1 + 4]] =
|
|
nnz_cache[scan8[2 + 4]] =
|
|
nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
|
|
|
|
nnz_cache[scan8[0 + 8]] =
|
|
nnz_cache[scan8[1 + 8]] =
|
|
nnz_cache[scan8[2 + 8]] =
|
|
nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
|
|
|
|
nnz_cache[scan8[0 + 12]] =
|
|
nnz_cache[scan8[1 + 12]] =
|
|
nnz_cache[scan8[2 + 12]] =
|
|
nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
|
|
{
|
|
uint8_t *dest_y, *dest_cb, *dest_cr;
|
|
int linesize, uvlinesize, mb_x, mb_y;
|
|
const int end_mb_y = sl->mb_y + FRAME_MBAFF(h);
|
|
const int old_slice_type = sl->slice_type;
|
|
const int pixel_shift = h->pixel_shift;
|
|
const int block_h = 16 >> h->chroma_y_shift;
|
|
|
|
if (sl->deblocking_filter) {
|
|
for (mb_x = start_x; mb_x < end_x; mb_x++)
|
|
for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
|
|
int mb_xy, mb_type;
|
|
mb_xy = sl->mb_xy = mb_x + mb_y * h->mb_stride;
|
|
sl->slice_num = h->slice_table[mb_xy];
|
|
mb_type = h->cur_pic.mb_type[mb_xy];
|
|
sl->list_count = h->list_counts[mb_xy];
|
|
|
|
if (FRAME_MBAFF(h))
|
|
sl->mb_mbaff =
|
|
sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
|
|
|
|
sl->mb_x = mb_x;
|
|
sl->mb_y = mb_y;
|
|
dest_y = h->cur_pic.f->data[0] +
|
|
((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
|
|
dest_cb = h->cur_pic.f->data[1] +
|
|
(mb_x << pixel_shift) * (8 << CHROMA444(h)) +
|
|
mb_y * sl->uvlinesize * block_h;
|
|
dest_cr = h->cur_pic.f->data[2] +
|
|
(mb_x << pixel_shift) * (8 << CHROMA444(h)) +
|
|
mb_y * sl->uvlinesize * block_h;
|
|
// FIXME simplify above
|
|
|
|
if (MB_FIELD(sl)) {
|
|
linesize = sl->mb_linesize = sl->linesize * 2;
|
|
uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
|
|
if (mb_y & 1) { // FIXME move out of this function?
|
|
dest_y -= sl->linesize * 15;
|
|
dest_cb -= sl->uvlinesize * (block_h - 1);
|
|
dest_cr -= sl->uvlinesize * (block_h - 1);
|
|
}
|
|
} else {
|
|
linesize = sl->mb_linesize = sl->linesize;
|
|
uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
|
|
}
|
|
backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
|
|
uvlinesize, 0);
|
|
if (fill_filter_caches(h, sl, mb_type))
|
|
continue;
|
|
sl->chroma_qp[0] = get_chroma_qp(h, 0, h->cur_pic.qscale_table[mb_xy]);
|
|
sl->chroma_qp[1] = get_chroma_qp(h, 1, h->cur_pic.qscale_table[mb_xy]);
|
|
|
|
if (FRAME_MBAFF(h)) {
|
|
ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
|
|
linesize, uvlinesize);
|
|
} else {
|
|
ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
|
|
dest_cr, linesize, uvlinesize);
|
|
}
|
|
}
|
|
}
|
|
sl->slice_type = old_slice_type;
|
|
sl->mb_x = end_x;
|
|
sl->mb_y = end_mb_y - FRAME_MBAFF(h);
|
|
sl->chroma_qp[0] = get_chroma_qp(h, 0, sl->qscale);
|
|
sl->chroma_qp[1] = get_chroma_qp(h, 1, sl->qscale);
|
|
}
|
|
|
|
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
|
|
{
|
|
const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
|
|
int mb_type = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
|
|
h->cur_pic.mb_type[mb_xy - 1] :
|
|
(h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
|
|
h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
|
|
sl->mb_mbaff = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
|
|
}
|
|
|
|
/**
|
|
* Draw edges and report progress for the last MB row.
|
|
*/
|
|
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
|
|
{
|
|
int top = 16 * (sl->mb_y >> FIELD_PICTURE(h));
|
|
int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h);
|
|
int height = 16 << FRAME_MBAFF(h);
|
|
int deblock_border = (16 + 4) << FRAME_MBAFF(h);
|
|
|
|
if (sl->deblocking_filter) {
|
|
if ((top + height) >= pic_height)
|
|
height += deblock_border;
|
|
top -= deblock_border;
|
|
}
|
|
|
|
if (top >= pic_height || (top + height) < 0)
|
|
return;
|
|
|
|
height = FFMIN(height, pic_height - top);
|
|
if (top < 0) {
|
|
height = top + height;
|
|
top = 0;
|
|
}
|
|
|
|
ff_h264_draw_horiz_band(h, sl, top, height);
|
|
|
|
if (h->droppable)
|
|
return;
|
|
|
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
|
|
h->picture_structure == PICT_BOTTOM_FIELD);
|
|
}
|
|
|
|
static void er_add_slice(H264SliceContext *sl,
|
|
int startx, int starty,
|
|
int endx, int endy, int status)
|
|
{
|
|
#if CONFIG_ERROR_RESILIENCE
|
|
ERContext *er = &sl->er;
|
|
|
|
if (!sl->h264->enable_er)
|
|
return;
|
|
|
|
er->ref_count = sl->ref_count[0];
|
|
ff_er_add_slice(er, startx, starty, endx, endy, status);
|
|
#endif
|
|
}
|
|
|
|
static int decode_slice(struct AVCodecContext *avctx, void *arg)
|
|
{
|
|
H264SliceContext *sl = arg;
|
|
const H264Context *h = sl->h264;
|
|
int lf_x_start = sl->mb_x;
|
|
int ret;
|
|
|
|
sl->linesize = h->cur_pic_ptr->f->linesize[0];
|
|
sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
|
|
|
|
ret = alloc_scratch_buffers(sl, sl->linesize);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
sl->mb_skip_run = -1;
|
|
|
|
sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
|
|
avctx->codec_id != AV_CODEC_ID_H264 ||
|
|
(CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
|
|
|
|
if (h->ps.pps->cabac) {
|
|
/* realign */
|
|
align_get_bits(&sl->gb);
|
|
|
|
/* init cabac */
|
|
ff_init_cabac_decoder(&sl->cabac,
|
|
sl->gb.buffer + get_bits_count(&sl->gb) / 8,
|
|
(get_bits_left(&sl->gb) + 7) / 8);
|
|
|
|
ff_h264_init_cabac_states(h, sl);
|
|
|
|
for (;;) {
|
|
// START_TIMER
|
|
int ret, eos;
|
|
|
|
if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
|
|
sl->next_slice_idx);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
ret = ff_h264_decode_mb_cabac(h, sl);
|
|
// STOP_TIMER("decode_mb_cabac")
|
|
|
|
if (ret >= 0)
|
|
ff_h264_hl_decode_mb(h, sl);
|
|
|
|
// FIXME optimal? or let mb_decode decode 16x32 ?
|
|
if (ret >= 0 && FRAME_MBAFF(h)) {
|
|
sl->mb_y++;
|
|
|
|
ret = ff_h264_decode_mb_cabac(h, sl);
|
|
|
|
if (ret >= 0)
|
|
ff_h264_hl_decode_mb(h, sl);
|
|
sl->mb_y--;
|
|
}
|
|
eos = get_cabac_terminate(&sl->cabac);
|
|
|
|
if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
|
|
sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
|
|
sl->mb_y, ER_MB_END);
|
|
if (sl->mb_x >= lf_x_start)
|
|
loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
|
|
return 0;
|
|
}
|
|
if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"error while decoding MB %d %d, bytestream %td\n",
|
|
sl->mb_x, sl->mb_y,
|
|
sl->cabac.bytestream_end - sl->cabac.bytestream);
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
|
|
sl->mb_y, ER_MB_ERROR);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (++sl->mb_x >= h->mb_width) {
|
|
loop_filter(h, sl, lf_x_start, sl->mb_x);
|
|
sl->mb_x = lf_x_start = 0;
|
|
decode_finish_row(h, sl);
|
|
++sl->mb_y;
|
|
if (FIELD_OR_MBAFF_PICTURE(h)) {
|
|
++sl->mb_y;
|
|
if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
|
|
predict_field_decoding_flag(h, sl);
|
|
}
|
|
}
|
|
|
|
if (eos || sl->mb_y >= h->mb_height) {
|
|
ff_tlog(h->avctx, "slice end %d %d\n",
|
|
get_bits_count(&sl->gb), sl->gb.size_in_bits);
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
|
|
sl->mb_y, ER_MB_END);
|
|
if (sl->mb_x > lf_x_start)
|
|
loop_filter(h, sl, lf_x_start, sl->mb_x);
|
|
return 0;
|
|
}
|
|
}
|
|
} else {
|
|
for (;;) {
|
|
int ret;
|
|
|
|
if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
|
|
av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
|
|
sl->next_slice_idx);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
ret = ff_h264_decode_mb_cavlc(h, sl);
|
|
|
|
if (ret >= 0)
|
|
ff_h264_hl_decode_mb(h, sl);
|
|
|
|
// FIXME optimal? or let mb_decode decode 16x32 ?
|
|
if (ret >= 0 && FRAME_MBAFF(h)) {
|
|
sl->mb_y++;
|
|
ret = ff_h264_decode_mb_cavlc(h, sl);
|
|
|
|
if (ret >= 0)
|
|
ff_h264_hl_decode_mb(h, sl);
|
|
sl->mb_y--;
|
|
}
|
|
|
|
if (ret < 0) {
|
|
av_log(h->avctx, AV_LOG_ERROR,
|
|
"error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
|
|
sl->mb_y, ER_MB_ERROR);
|
|
return ret;
|
|
}
|
|
|
|
if (++sl->mb_x >= h->mb_width) {
|
|
loop_filter(h, sl, lf_x_start, sl->mb_x);
|
|
sl->mb_x = lf_x_start = 0;
|
|
decode_finish_row(h, sl);
|
|
++sl->mb_y;
|
|
if (FIELD_OR_MBAFF_PICTURE(h)) {
|
|
++sl->mb_y;
|
|
if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
|
|
predict_field_decoding_flag(h, sl);
|
|
}
|
|
if (sl->mb_y >= h->mb_height) {
|
|
ff_tlog(h->avctx, "slice end %d %d\n",
|
|
get_bits_count(&sl->gb), sl->gb.size_in_bits);
|
|
|
|
if (get_bits_left(&sl->gb) == 0) {
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
|
|
sl->mb_x - 1, sl->mb_y, ER_MB_END);
|
|
|
|
return 0;
|
|
} else {
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
|
|
sl->mb_x - 1, sl->mb_y, ER_MB_END);
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
|
|
ff_tlog(h->avctx, "slice end %d %d\n",
|
|
get_bits_count(&sl->gb), sl->gb.size_in_bits);
|
|
|
|
if (get_bits_left(&sl->gb) == 0) {
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
|
|
sl->mb_x - 1, sl->mb_y, ER_MB_END);
|
|
if (sl->mb_x > lf_x_start)
|
|
loop_filter(h, sl, lf_x_start, sl->mb_x);
|
|
|
|
return 0;
|
|
} else {
|
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
|
|
sl->mb_y, ER_MB_ERROR);
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Call decode_slice() for each context.
|
|
*
|
|
* @param h h264 master context
|
|
* @param context_count number of contexts to execute
|
|
*/
|
|
int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count)
|
|
{
|
|
AVCodecContext *const avctx = h->avctx;
|
|
H264SliceContext *sl;
|
|
int i, j;
|
|
|
|
if (h->avctx->hwaccel)
|
|
return 0;
|
|
if (context_count == 1) {
|
|
int ret;
|
|
|
|
h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
|
|
|
|
ret = decode_slice(avctx, &h->slice_ctx[0]);
|
|
h->mb_y = h->slice_ctx[0].mb_y;
|
|
return ret;
|
|
} else {
|
|
for (i = 0; i < context_count; i++) {
|
|
int next_slice_idx = h->mb_width * h->mb_height;
|
|
int slice_idx;
|
|
|
|
sl = &h->slice_ctx[i];
|
|
sl->er.error_count = 0;
|
|
|
|
/* make sure none of those slices overlap */
|
|
slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
|
|
for (j = 0; j < context_count; j++) {
|
|
H264SliceContext *sl2 = &h->slice_ctx[j];
|
|
int slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
|
|
|
|
if (i == j || slice_idx2 < slice_idx)
|
|
continue;
|
|
next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
|
|
}
|
|
sl->next_slice_idx = next_slice_idx;
|
|
}
|
|
|
|
avctx->execute(avctx, decode_slice, h->slice_ctx,
|
|
NULL, context_count, sizeof(h->slice_ctx[0]));
|
|
|
|
/* pull back stuff from slices to master context */
|
|
sl = &h->slice_ctx[context_count - 1];
|
|
h->mb_y = sl->mb_y;
|
|
for (i = 1; i < context_count; i++)
|
|
h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
|
|
}
|
|
|
|
return 0;
|
|
}
|