Commit Graph

32 Commits

Author SHA1 Message Date
Clément Bœsch
a16c20569d lavf/gifdec: add loop support.
Loop is ignored by default.
2013-04-20 00:05:35 +02:00
Paul B Mahol
d1d159d31e lavf/gifdec: cosmetics: remove extra whitespace
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2013-01-26 09:28:57 +00:00
Paul B Mahol
254e11cc01 lavf/gifdec: fix typo
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2013-01-26 09:28:57 +00:00
Michael Niedermayer
13aca070ab gifdec: resync support
This allows decoding gifs that have junk at the begin
and also allows byte wise seeking

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-25 17:25:16 +01:00
Paul B Mahol
18aaed6475 gifdec: do not handle timestamps
It is broken, and results will be messed up when seeking.

This also fix duration displayed for streams when using -c copy.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-12-04 15:21:24 +00:00
Paul B Mahol
9d5cfce855 gifdec: rudimentary seeking
With this ffplay -loop X successfully seeks to start.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-12-01 11:43:50 +00:00
Paul B Mahol
57b00d7ab1 gifdec: remove width and height from demuxer context
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-11-30 16:09:02 +00:00
Paul B Mahol
d56b15017a undo file modifiers that suck in
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-11-30 15:00:35 +00:00
Vitaliy E Sugrobov
5603b2bf6e Gif demuxer
Gif demuxer is capable of extracting multiple frames from gif file.
In conjunction with gif decoder it implements support for reading
animated gifs.
Demuxer has two options available to user: default_delay and min_delay.
These options are for protection from too rapid gif animations. In practice
it is standard approach to slow down rendering of this kind of gifs. If you try to
play gif with delay between frames of one hundredth of second (100fps) using
one of major web browsers, you get significantly slower playback,
around 10 fps. This is because browser detects that delay value is less than some
threshold (usually 2 hundredths of second) and reset it to default value (usually 10
hundredths of second, which corresponds to 10fps). Manipulating these options user
can achieve the same effect during conversion to some video format. Otherwise user
can set them to not protect from rapid animations at all.
The other case when these options necessary is for gif images encoded according to
gif87a standard since prior to gif89a there was no delay information included in file.
Bump lavf minor version.

Signed-off-by: Vitaliy E Sugrobov <vsugrob@hotmail.com>
2012-11-30 14:33:58 +00:00
Michael Niedermayer
0b54f3c087 Remove gif demuxer, the code contains a gif decoder and lzw decoder neither
belongs in a demuxer, furthermore the code might be exploitable.
Fixes issue530

Originally committed as revision 14209 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-13 18:47:24 +00:00
Stefano Sabatini
bde15e74de Make long_names in lavf/lavdev optional depending on CONFIG_SMALL.
patch by Stefano Sabatini, stefano.sabatini-lala poste.it
along with some spelling/consistency fixes for the long names by me

Originally committed as revision 13649 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-06-03 16:20:54 +00:00
Reimar Döffinger
e7a5e2f626 Fix decoding of interlaced gif, e.g. http://samples.mplayerhq.hu/GIF/7up.gif
Originally committed as revision 12297 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-03 13:16:29 +00:00
Björn Axelsson
899681cd1d Use dynamically allocated ByteIOContext in AVFormatContext
patch by: Björn Axelsson, bjorn d axelsson a intinor d se
thread: [PATCH] Remove static ByteIOContexts, 06 nov 2007

Originally committed as revision 11071 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-11-21 07:41:00 +00:00
Panagiotis Issaris
6f3e0b2174 Replace all occurrences of AVERROR_IO with AVERROR(EIO).
Originally committed as revision 9760 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-07-19 15:23:32 +00:00
François Revol
8fa36ae09d This fixes error handling for BeOS, removing the need for some ifdefs.
AVERROR_ defines are moved to avcodec.h as they are needed in there as well. Feel free to move that to avutil/common.h.
Bumped up avcodec/format version numbers as though it's binary compatible we will want to rebuild apps as error values changed.
Please from now on use return AVERROR(EFOO) instead of the ugly return -EFOO in your code.
This also removes the need for berrno.h.

Originally committed as revision 7965 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-13 18:26:14 +00:00
Baptiste Coudurier
f932cdf209 kill AVImageFormat
Originally committed as revision 6875 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-11-02 23:22:23 +00:00
Aurelien Jacobs
7fbde3431a replace coder/decoder file description in libavformat by muxer/demuxer
Originally committed as revision 6774 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-23 08:57:54 +00:00
Diego Biurrun
b78e7197a8 Change license headers to say 'FFmpeg' instead of 'this program/this library'
and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-07 15:30:46 +00:00
Måns Rullgård
ff70e60176 allow individual selection of muxers and demuxers
Originally committed as revision 5707 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-07-10 21:14:37 +00:00
Måns Rullgård
d2a067d1d9 give AVInput/OutputFormat structs consistent names
Originally committed as revision 5697 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-07-09 23:40:53 +00:00
Diego Biurrun
5509bffa88 Update licensing information: The FSF changed postal address.
Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-01-12 22:43:26 +00:00
Diego Biurrun
bb270c0896 COSMETICS: tabs --> spaces, some prettyprinting
Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-22 01:10:11 +00:00
Diego Biurrun
115329f160 COSMETICS: Remove all trailing whitespace.
Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-17 18:14:38 +00:00
Michael Niedermayer
01f4895c68 changing AVCodecContext codec -> *codec in AVStream so additions to AVCodecContext dont randomize AVStream and break binary compatibility
Originally committed as revision 4453 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-07-17 22:24:36 +00:00
Michael Niedermayer
c0df9d75bd switch to native time bases
Originally committed as revision 4168 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-04-30 21:43:59 +00:00
Michael Niedermayer
568e18b15e integer overflows, heap corruption
possible arbitrary code execution cannot be ruled out in some cases
precautionary checks

Originally committed as revision 3813 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-08 14:21:33 +00:00
Mike Melanson
0bd586c50d sweeping change from -EIO -> AVERROR_IO
Originally committed as revision 3239 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-06-19 03:59:34 +00:00
Fabrice Bellard
a059da1227 transparency support
Originally committed as revision 1808 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-04-21 21:18:51 +00:00
Michael Niedermayer
14bea432f1 per context frame_rate_base, this should finally fix frame_rate related av sync issues
Originally committed as revision 1666 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-03-12 15:16:19 +00:00
Fabrice Bellard
84ab361f3e added 8 bit palette support for non animated GIF
Originally committed as revision 1562 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-02-09 16:25:21 +00:00
Fabrice Bellard
fcfa89e81c added automatic GIF/animated GIF probing - added GIF as an image format too - added interlaced gif support
Originally committed as revision 1539 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-02-03 22:51:48 +00:00
Fabrice Bellard
12b64a2252 added animated GIF decoder (pts and various disposal handling are missing)
Originally committed as revision 1533 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-02-02 19:16:51 +00:00