Commit Graph

5 Commits

Author SHA1 Message Date
Clément Bœsch
f9240ec01a avcodec/gif: fix off by one in column offsetting finding 2015-02-16 17:47:35 +01:00
Michael Niedermayer
4394f82f52 avformat/utils: add gif to tb_unreliable()
This improves the used timebases when gif is the source

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-28 15:20:38 +02:00
Michael Niedermayer
b4e2e03709 avcodec/lzwenc: Add 1 additional bit of padding for gif
This fixes issues with gimp reading animated gifs

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-14 23:15:54 +02:00
Clément Bœsch
e1b35bdde2 lavc/gif: add flag to enable transparency detection between frames.
While this is not always optimal, in practice most of the common cases are.

  ffmpeg -i big_buck_bunny_1080p_h264.mov -ss 45 -vf scale=320:160 -gifflags -transdiff -frames:v 50 -y bbb-notrans.gif
  ffmpeg -i big_buck_bunny_1080p_h264.mov -ss 45 -vf scale=320:160 -gifflags +transdiff -frames:v 50 -y bbb-trans.gif

  -rw-r--r-- 1 ubitux ubitux 1.1M Apr 19 19:00 bbb-notrans.gif
  -rw-r--r-- 1 ubitux ubitux 378K Apr 19 19:00 bbb-trans.gif
2013-04-19 23:59:21 +02:00
Clément Bœsch
3d786591b8 fate/gif: create meaningful gif encoding tests. 2013-04-19 02:05:01 +02:00