ffmpeg/FFmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-09-22 14:26:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge commit 'b1aacd56685cd131f517e0551834a0bbd3f5f809'

Browse Source 
* commit 'b1aacd56685cd131f517e0551834a0bbd3f5f809':
  mpeg4videodec: move t_frame from MpegEncContext to Mpeg4DecContext

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-11-30 03:20:05 +01:00
commit 0cea39fdd3
3 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/mpeg4video.h
View File

@ -70,6 +70,8 @@ typedef struct Mpeg4DecContext {
int rvlc;
///< could this stream contain resync markers
int resync_marker;
///< time distance of first I -> B, used for interlaced b frames
int t_frame;
/* bug workarounds */
int divx_version;

18
libavcodec/mpeg4videodec.c
View File

@ -1771,7 +1771,7 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
else
s->avctx->time_base.num = 1;
s->t_frame = 0;
ctx->t_frame = 0;
if (ctx->shape != BIN_ONLY_SHAPE) {
if (ctx->shape == RECT_SHAPE) {
@ -2290,14 +2290,14 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
}
ff_mpeg4_init_direct_mv(s);
if (s->t_frame == 0)
s->t_frame = s->pb_time;
if (s->t_frame == 0)
s->t_frame = 1; // 1/0 protection
s->pp_field_time = (ROUNDED_DIV(s->last_non_b_time, s->t_frame) -
ROUNDED_DIV(s->last_non_b_time - s->pp_time, s->t_frame)) * 2;
s->pb_field_time = (ROUNDED_DIV(s->time, s->t_frame) -
ROUNDED_DIV(s->last_non_b_time - s->pp_time, s->t_frame)) * 2;
if (ctx->t_frame == 0)
ctx->t_frame = s->pb_time;
if (ctx->t_frame == 0)
ctx->t_frame = 1; // 1/0 protection
s->pp_field_time = (ROUNDED_DIV(s->last_non_b_time, ctx->t_frame) -
ROUNDED_DIV(s->last_non_b_time - s->pp_time, ctx->t_frame)) * 2;
s->pb_field_time = (ROUNDED_DIV(s->time, ctx->t_frame) -
ROUNDED_DIV(s->last_non_b_time - s->pp_time, ctx->t_frame)) * 2;
if (!s->progressive_sequence) {
if (s->pp_field_time <= s->pb_field_time || s->pb_field_time <= 1)
return FRAME_SKIPPED;

1
libavcodec/mpegvideo.h
View File

@ -623,7 +623,6 @@ typedef struct MpegEncContext {
PutBitContext tex_pb; ///< used for data partitioned VOPs
PutBitContext pb2; ///< used for data partitioned VOPs
int mpeg_quant;
int t_frame; ///< time distance of first I -> B, used for interlaced b frames
int padding_bug_score; ///< used to detect the VERY common padding bug in MPEG4
/* divx specific, used to workaround (many) bugs in divx5 */