On Mon, May 11, 2015 at 11:34:32PM +0200, Andreas Cadhalpun wrote: > Currently video_dst_bufsize is used, which is set to the return value > of av_image_alloc, but this is the combined size of all planes. > Only the first plane is written in fwrite. > > The size of the first plane is the product of video_dst_linesize[0] and > height. > > This fixes 'Syscall param write(buf) points to uninitialised byte(s)' > valgrind warnings. > > Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com> > --- > doc/examples/demuxing_decoding.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-)
this breaks demuxing_decoding with pixel formats that use more than
1 plane
for example:
doc/examples/demuxing_decoding lena255.jpg out.raw /dev/null
Could not find audio stream in input file 'lena255.jpg'
Input #0, image2, from 'lena255.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 3124 kb/s
Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown),
255x255, 25 tbr, 25 tbn, 25 tbc
Demuxing video from file 'lena255.jpg' into 'out.raw'
video_frame n:0 coded_n:0 pts:NOPTS
Demuxing succeeded.
Play the output video file with the command:
ffplay -f rawvideo -pix_fmt yuvj444p -video_size 255x255 out.raw
but the printed command line for ffplay does not work as the stored
image is not containing teh chroma planes
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
It is what and why we do it that matters, not just one of them.
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