[FFmpeg-devel] [PATCH] Fix vf_cropdetect returning negative rectangles

[Michael Niedermayer]

On Wed, Sep 10, 2014 at 10:35:23AM -0700, hjiodjf 97xgw46 wrote:
> It appears to work for me:


./ffmpeg -i matrixbench_mpeg2.mpg -vframes 5 -an -vf "cropdetect" -f null -

before patch:
[Parsed_cropdetect_0 @ 0x27a46e0] x1:91 x2:719 y1:201 y2:437 w:624 h:224 x:94 y:208 pts:7200 t:0.080000 crop=624:224:94:208
[Parsed_cropdetect_0 @ 0x27a46e0] x1:91 x2:719 y1:198 y2:437 w:624 h:240 x:94 y:198 pts:10800 t:0.120000 crop=624:240:94:198
[Parsed_cropdetect_0 @ 0x27a46e0] x1:91 x2:719 y1:198 y2:437 w:624 h:240 x:94 y:198 pts:14400 t:0.160000 crop=624:240:94:198
[Parsed_cropdetect_0 @ 0x27a46e0] x1:91 x2:719 y1:198 y2:437 w:624 h:240 x:94 y:198 pts:18000 t:0.200000 crop=624:240:94:198

after patch:
[Parsed_cropdetect_0 @ 0x1e686e0] x1:91 x2:719 y1:201 y2:575 w:624 h:368 x:94 y:206 pts:7200 t:0.080000 crop=624:368:94:206
[Parsed_cropdetect_0 @ 0x1e686e0] x1:91 x2:719 y1:198 y2:575 w:624 h:368 x:94 y:204 pts:10800 t:0.120000 crop=624:368:94:204
[Parsed_cropdetect_0 @ 0x1e686e0] x1:91 x2:719 y1:198 y2:575 w:624 h:368 x:94 y:204 pts:14400 t:0.160000 crop=624:368:94:204
[Parsed_cropdetect_0 @ 0x1e686e0] x1:91 x2:719 y1:198 y2:575 w:624 h:368 x:94 y:204 pts:18000 t:0.200000 crop=624:368:94:204



[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Good people do not need laws to tell them to act responsibly, while bad
people will find a way around the laws. -- Plato
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