From 5e4aa542defb4f9551884eec2ab09582d8c9cbc0 Mon Sep 17 00:00:00 2001 From: Baptiste Coudurier Date: Fri, 23 Jan 2009 20:20:36 +0000 Subject: [PATCH] reduce display aspect ratio Originally committed as revision 16732 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/mxfenc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c index 10f22d5113..1e8bd7c0db 100644 --- a/libavformat/mxfenc.c +++ b/libavformat/mxfenc.c @@ -558,6 +558,7 @@ static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st) { ByteIOContext *pb = s->pb; int stored_height = (st->codec->height+15)/16*16; + AVRational dar; mxf_write_generic_desc(pb, st, mxf_mpegvideo_descriptor_key); @@ -567,9 +568,14 @@ static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st) mxf_write_local_tag(pb, 4, 0x3202); put_be32(pb, stored_height); + av_reduce(&dar.num, &dar.den, + st->codec->width*st->codec->sample_aspect_ratio.num, + st->codec->height*st->codec->sample_aspect_ratio.den, + 1024*1024); + mxf_write_local_tag(pb, 8, 0x320E); - put_be32(pb, st->codec->height * st->sample_aspect_ratio.den); - put_be32(pb, st->codec->width * st->sample_aspect_ratio.num); + put_be32(pb, dar.num); + put_be32(pb, dar.den); } static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)