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Commit Graph

8 Commits

Author SHA1 Message Date
Paul B Mahol
ec8502f9cb avcodec/gif: use avctx->frame_number 2018-12-13 19:30:39 +01:00
Paul B Mahol
faca28c264 avcodec: rewrite gif muxing and encoding
Now "-c copy" works.
Update FATE files.

Demuxer only split file into packets, no data is trimmed.
Encoder & muxer currently expect completely another format
where muxer writes stuff like disposal method which should
be really encoder job.
With this patch muxer only modifies delay between two packets.
Codec copy need to have same behavior between demuxer and
muxer to work correctly.

Fixes #6640.
2018-12-13 18:58:48 +01:00
James Almer
33aa8a6221 avformat/framecrc: enable new output
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
2016-04-13 11:37:14 -03:00
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
Michael Niedermayer
1ba01d3d46 swscale: treat gray as a fullrage (0-255) format
Fixes Ticket2684

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-08 15:21:48 +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