ffmpeg | branch: release/3.0 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Mar 19 15:41:30 2016 +0100| [50a639a62aa3fdef8a8a701e500acaf61a25c6ff] | committer: Michael Niedermayer
avcodec/mjpegenc_common: Store approximate aspect if exact cannot be stored Fixes Ticket5244 Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 068026b0f7845e0f1850094d974f60d181480d64) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=50a639a62aa3fdef8a8a701e500acaf61a25c6ff --- libavcodec/mjpegenc_common.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/libavcodec/mjpegenc_common.c b/libavcodec/mjpegenc_common.c index 099d817..7a6fe746 100644 --- a/libavcodec/mjpegenc_common.c +++ b/libavcodec/mjpegenc_common.c @@ -122,6 +122,16 @@ static void jpeg_put_comments(AVCodecContext *avctx, PutBitContext *p) uint8_t *ptr; if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0) { + AVRational sar = avctx->sample_aspect_ratio; + + if (sar.num > 65535 || sar.den > 65535) { + if (!av_reduce(&sar.num, &sar.den, avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den, 65535)) + av_log(avctx, AV_LOG_WARNING, + "Cannot store exact aspect ratio %d:%d\n", + avctx->sample_aspect_ratio.num, + avctx->sample_aspect_ratio.den); + } + /* JFIF header */ put_marker(p, APP0); put_bits(p, 16, 16); @@ -131,8 +141,8 @@ static void jpeg_put_comments(AVCodecContext *avctx, PutBitContext *p) * released revision. */ put_bits(p, 16, 0x0102); put_bits(p, 8, 0); /* units type: 0 - aspect ratio */ - put_bits(p, 16, avctx->sample_aspect_ratio.num); - put_bits(p, 16, avctx->sample_aspect_ratio.den); + put_bits(p, 16, sar.num); + put_bits(p, 16, sar.den); put_bits(p, 8, 0); /* thumbnail width */ put_bits(p, 8, 0); /* thumbnail height */ } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
