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mpeg12: move full_pel from MpegEncContext to Mpeg1Context 

It's MPEG-1 specific.
This commit is contained in:
Anton Khirnov 2011-10-19 09:28:45 +02:00
parent cc05a45d33
commit da22ba7df4
5 changed files with 15 additions and 12 deletions
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15
libavcodec/mpeg12.c
View File

@ -734,8 +734,9 @@ static void exchange_uv(MpegEncContext *s)
#define MT_16X8 2
#define MT_DMV 3
static int mpeg_decode_mb(MpegEncContext *s, DCTELEM block[12][64])
static int mpeg_decode_mb(Mpeg1Context *s1, DCTELEM block[12][64])
{
MpegEncContext *s = &s1->mpeg_enc_ctx;
int i, j, k, cbp, val, mb_type, motion_type;
const int mb_block_count = 4 + (1 << s->chroma_format);
@ -909,7 +910,7 @@ static int mpeg_decode_mb(MpegEncContext *s, DCTELEM block[12][64])
s->mv[i][0][1]= s->last_mv[i][0][1]= s->last_mv[i][1][1] =
mpeg_decode_motion(s, s->mpeg_f_code[i][1], s->last_mv[i][0][1]);
/* full_pel: only for MPEG-1 */
if (s->full_pel[i]) {
if (s1->full_pel[i]) {
s->mv[i][0][0] <<= 1;
s->mv[i][0][1] <<= 1;
}
@ -1327,7 +1328,7 @@ static int mpeg1_decode_picture(AVCodecContext *avctx,
vbv_delay = get_bits(&s->gb, 16);
if (s->pict_type == AV_PICTURE_TYPE_P || s->pict_type == AV_PICTURE_TYPE_B) {
s->full_pel[0] = get_bits1(&s->gb);
s1->full_pel[0] = get_bits1(&s->gb);
f_code = get_bits(&s->gb, 3);
if (f_code == 0 && (avctx->err_recognition & AV_EF_BITSTREAM))
return -1;
@ -1335,7 +1336,7 @@ static int mpeg1_decode_picture(AVCodecContext *avctx,
s->mpeg_f_code[0][1] = f_code;
}
if (s->pict_type == AV_PICTURE_TYPE_B) {
s->full_pel[1] = get_bits1(&s->gb);
s1->full_pel[1] = get_bits1(&s->gb);
f_code = get_bits(&s->gb, 3);
if (f_code == 0 && (avctx->err_recognition & AV_EF_BITSTREAM))
return -1;
@ -1483,7 +1484,7 @@ static void mpeg_decode_picture_coding_extension(Mpeg1Context *s1)
{
MpegEncContext *s = &s1->mpeg_enc_ctx;
s->full_pel[0] = s->full_pel[1] = 0;
s1->full_pel[0] = s1->full_pel[1] = 0;
s->mpeg_f_code[0][0] = get_bits(&s->gb, 4);
s->mpeg_f_code[0][1] = get_bits(&s->gb, 4);
s->mpeg_f_code[1][0] = get_bits(&s->gb, 4);
@ -1715,7 +1716,7 @@ static int mpeg_decode_slice(Mpeg1Context *s1, int mb_y,
if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration > 1)
ff_xvmc_init_block(s); // set s->block
if (mpeg_decode_mb(s, s->block) < 0)
if (mpeg_decode_mb(s1, s->block) < 0)
return -1;
if (s->current_picture.f.motion_val[0] && !s->encoding) { // note motion_val is normally NULL unless we want to extract the MVs
@ -2258,7 +2259,7 @@ static int decode_chunks(AVCodecContext *avctx,
}
if (CONFIG_MPEG_VDPAU_DECODER && avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
ff_vdpau_mpeg_picture_complete(s2, buf, buf_size, s->slice_count);
ff_vdpau_mpeg_picture_complete(s, buf, buf_size, s->slice_count);
if (slice_end(avctx, picture)) {
if (s2->last_picture_ptr || s2->low_delay) //FIXME merge with the stuff in mpeg_decode_slice

1
libavcodec/mpeg12.h
View File

@ -41,6 +41,7 @@ typedef struct Mpeg1Context {
int save_width, save_height, save_progressive_seq;
AVRational frame_rate_ext; ///< MPEG-2 specific framerate modificator
int sync; ///< Did we reach a sync point like a GOP/SEQ/KEYFrame?
int full_pel[2];
} Mpeg1Context;
extern uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];

1
libavcodec/mpegvideo.h
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@ -634,7 +634,6 @@ typedef struct MpegEncContext {
int chroma_y_shift;
int progressive_frame;
int full_pel[2];
int interlaced_dct;
int first_slice;
int first_field; ///< is 1 for the first field of a field picture 0 otherwise

7
libavcodec/vdpau.c
View File

@ -190,9 +190,10 @@ void ff_vdpau_h264_picture_complete(MpegEncContext *s)
render->bitstream_buffers_used = 0;
}
void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
void ff_vdpau_mpeg_picture_complete(Mpeg1Context *s1, const uint8_t *buf,
int buf_size, int slice_count)
{
MpegEncContext *s = &s1->mpeg_enc_ctx;
struct vdpau_render_state *render, *last, *next;
int i;
@ -211,8 +212,8 @@ void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
render->info.mpeg.alternate_scan = s->alternate_scan;
render->info.mpeg.q_scale_type = s->q_scale_type;
render->info.mpeg.top_field_first = s->top_field_first;
render->info.mpeg.full_pel_forward_vector = s->full_pel[0]; // MPEG-1 only. Set 0 for MPEG-2
render->info.mpeg.full_pel_backward_vector = s->full_pel[1]; // MPEG-1 only. Set 0 for MPEG-2
render->info.mpeg.full_pel_forward_vector = s1->full_pel[0]; // MPEG-1 only. Set 0 for MPEG-2
render->info.mpeg.full_pel_backward_vector = s1->full_pel[1]; // MPEG-1 only. Set 0 for MPEG-2
render->info.mpeg.f_code[0][0] = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
render->info.mpeg.f_code[0][1] = s->mpeg_f_code[0][1];
render->info.mpeg.f_code[1][0] = s->mpeg_f_code[1][0];

3
libavcodec/vdpau_internal.h
View File

@ -26,11 +26,12 @@
#include <stdint.h>
#include "mpegvideo.h"
#include "mpeg12.h"
void ff_vdpau_add_data_chunk(MpegEncContext *s, const uint8_t *buf,
int buf_size);
void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
void ff_vdpau_mpeg_picture_complete(Mpeg1Context *s1, const uint8_t *buf,
int buf_size, int slice_count);
void ff_vdpau_h264_picture_start(MpegEncContext *s);