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| author | Michael Niedermayer <michaelni@gmx.at> | 2003-10-20 20:23:46 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2003-10-20 20:23:46 +0000 |
| commit | 5ff85f1d8b5721a9e7f0ca6e03f61f5d3a4c3664 (patch) | |
| tree | 710ea001d862c7bdb29dd0e707f9dd9eee3f2c72 /libavformat/dv.c | |
| parent | 9dad924e22dc0e1a09013b588b43051b5baf428d (diff) | |
| download | ffmpeg-5ff85f1d8b5721a9e7f0ca6e03f61f5d3a4c3664.tar.gz | |
AVRational
sample_aspect_ratio
aspect ratio in JPEG JFIF is SAR not DAR !
removed nonsense SAR guessing code
various related cleanups
bugs?
Originally committed as revision 2403 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/dv.c')
| -rw-r--r-- | libavformat/dv.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libavformat/dv.c b/libavformat/dv.c index 62992fa8fc..56e3160162 100644 --- a/libavformat/dv.c +++ b/libavformat/dv.c @@ -556,10 +556,12 @@ static int dv_extract_video_info(uint8_t* frame, AVCodecContext* avctx) avctx->height = sys->height; avctx->pix_fmt = sys->pix_fmt; vsc_pack = dv_extract_pack(frame, dv_video_control); + /* MN: someone please fill in the correct SAR for dv, i dont have the standard doc so i cant, allthough its very likely the same as MPEG4 (12:11 10:11 16:11 40:33) */ if (vsc_pack && (vsc_pack[2] & 0x07) == (apt?0x02:0x07)) - avctx->aspect_ratio = 16.0 / 9.0; + avctx->sample_aspect_ratio = (AVRational){16,9}; else - avctx->aspect_ratio = 4.0 / 3.0; + avctx->sample_aspect_ratio = (AVRational){4,3}; + avctx->sample_aspect_ratio = av_div_q(avctx->sample_aspect_ratio, (AVRational){sys->width,sys->height}); size = sys->frame_size; } return size; @@ -660,7 +662,7 @@ DVMuxContext* dv_init_mux(AVFormatContext* s) c->has_audio = c->has_video = 0; c->start_time = time(NULL); c->aspect = 0; /* 4:3 is the default */ - if ((int)(vst->codec.aspect_ratio * 10) == 17) /* 16:9 */ + if ((int)(av_q2d(vst->codec.sample_aspect_ratio) * vst->codec.width / vst->codec.height * 10) == 17) /* 16:9 */ c->aspect = 0x07; if (fifo_init(&c->audio_data, 100*AVCODEC_MAX_AUDIO_FRAME_SIZE) < 0) |