[FFmpeg-devel] AVCHD video decodes at half-rate
Thu Mar 6 09:11:34 CET 2008
Both ffmpeg (2008-02-09) and ffdshow seem to exhibit a behavior when
playing back AVCHD files, of the decode playing at half rate. The audio
decodes at normal speed (completes twice as fast as video).
Here is a 10MB source AVCHD/m2ts and mp4 output:
http://www.onnet.cc/sample.m2ts created by a sony hdr-sr1, and produces
(like ffdshow) a video decode that runs at half rate (any -vsync and -r
combo I tried would not work):
ffmpeg -y -vsync 2 -i sample.m2ts -r 30000:1001 -s 480x272 -vcodec
I apologize if this is already known; I did not see any fixme or
check-in comments for h264* mpegvideo_parser, etc.
More information about the ffmpeg-devel