diff options
| author | Limin Wang <lance.lmwang@gmail.com> | 2020-01-06 20:54:17 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-01-07 02:49:44 +0100 |
| commit | d31a1266a789584d7de4a6c2f5d7f862003ad7ad (patch) | |
| tree | 7aa0bc6740d539dc79e0d059680db1c86ff8d0b3 /libavformat/qcp.c | |
| parent | 220846f74fc33fc037147e54535bcaef8caad28b (diff) | |
| download | ffmpeg-d31a1266a789584d7de4a6c2f5d7f862003ad7ad.tar.gz | |
avfilter/vf_showinfo: Fix erroneous results for mean and stdev with pixel bits >8
Have tested with be and le pixel format on be and le system for >8bit.
System:
lmwang@ubuntu:~/ffmpeg.git.mips$ grep HAVE_BIGENDIAN config.h
ffmpeg.git git:(showinfo) ✗ grep HAVE_BIGENDIAN config.h
Test result:
1, yuv420p
./ffmpeg -f lavfi -i color=black:duration=1:r=1:size=1280x720,format=yuv420p,showinfo
Master:
mean:[16 128 128] stdev:[0.0 0.0 0.0]
After applied the patch:
mean:[16 128 128] stdev:[0.0 0.0 0.0]
2, yuv420p10le
./ffmpeg -f lavfi -i color=black:duration=1:r=1:size=1280x720,format=yuv420p10le,showinfo
Master:
mean:[32 1 1] stdev:[32.0 1.0 1.0]
After applied the patch:
mean:[64 512 512] stdev:[0.0 0.0 0.0]
3, yuv420p10be
./ffmpeg -f lavfi -i color=black:duration=1:r=1:size=1280x720,format=yuv420p10be,showinfo
Master:
mean:[32 1 1] stdev:[32.0 1.0 1.0]
After applied the patch:
mean:[64 512 512] stdev:[0.0 0.0 0.0]
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/qcp.c')
0 files changed, 0 insertions, 0 deletions