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| author | Michael Niedermayer <michaelni@gmx.at> | 2009-02-26 23:47:32 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2009-02-26 23:47:32 +0000 |
| commit | 3797c74ba5350692122a81db62a7bf2ce152f7fc (patch) | |
| tree | 937ea6305b90b405b4760bcabf0d23de1379a869 /libavcodec | |
| parent | 83569729d461d4a9465ad90d6a6e36eb2c358cb5 (diff) | |
| download | ffmpeg-3797c74ba5350692122a81db62a7bf2ce152f7fc.tar.gz | |
Add ticks_per_frame, this should hopefully fix the regressions caused
by the time_base change.
Originally committed as revision 17630 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/avcodec.h | 11 | ||||
| -rw-r--r-- | libavcodec/h264.c | 1 | ||||
| -rw-r--r-- | libavcodec/mpeg12.c | 3 | ||||
| -rw-r--r-- | libavcodec/options.c | 1 |
4 files changed, 14 insertions, 2 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index a3bfcbc431..b078bc98c2 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -30,7 +30,7 @@ #include "libavutil/avutil.h" #define LIBAVCODEC_VERSION_MAJOR 52 -#define LIBAVCODEC_VERSION_MINOR 19 +#define LIBAVCODEC_VERSION_MINOR 20 #define LIBAVCODEC_VERSION_MICRO 0 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ @@ -2323,6 +2323,15 @@ typedef struct AVCodecContext { * - decoding: Set by libavcodec */ struct AVHWAccel *hwaccel; + + /** + * For some codecs, the time base is closer to the field rate than the frame rate. + * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration + * if no telecine is used ... + * + * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2. + */ + int ticks_per_frame; } AVCodecContext; /** diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 64ca5b7e66..24dc201e9f 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -2201,6 +2201,7 @@ static av_cold int decode_init(AVCodecContext *avctx){ h->sei_dpb_output_delay = 0; h->sei_cpb_removal_delay = -1; h->sei_buffering_period_present = 0; + avctx->ticks_per_frame = 2; return 0; } diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c index 46d7946aaa..6988da22f6 100644 --- a/libavcodec/mpeg12.c +++ b/libavcodec/mpeg12.c @@ -1269,7 +1269,7 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){ //MPEG-1 aspect avctx->sample_aspect_ratio= av_d2q( 1.0/ff_mpeg1_aspect[s->aspect_ratio_info], 255); - + avctx->ticks_per_frame=1; }else{//MPEG-2 //MPEG-2 fps av_reduce( @@ -1278,6 +1278,7 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){ ff_frame_rate_tab[s->frame_rate_index].num * s1->frame_rate_ext.num*2, ff_frame_rate_tab[s->frame_rate_index].den * s1->frame_rate_ext.den, 1<<30); + avctx->ticks_per_frame=2; //MPEG-2 aspect if(s->aspect_ratio_info > 1){ //we ignore the spec here as reality does not match the spec, see for example diff --git a/libavcodec/options.c b/libavcodec/options.c index 1a3c1efd5d..e5a67a4893 100644 --- a/libavcodec/options.c +++ b/libavcodec/options.c @@ -393,6 +393,7 @@ static const AVOption options[]={ {"request_channel_layout", NULL, OFFSET(request_channel_layout), FF_OPT_TYPE_INT64, DEFAULT, 0, INT64_MAX, A|D, "request_channel_layout"}, {"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), FF_OPT_TYPE_FLOAT, 1.0/3, 0.0, FLT_MAX, V|E}, {"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use), FF_OPT_TYPE_FLOAT, 3, 0.0, FLT_MAX, V|E}, +{"ticks_per_frame", NULL, OFFSET(ticks_per_frame), FF_OPT_TYPE_INT, 1, 1, INT_MAX, A|V|E|D}, {NULL}, }; |