Commit Graph

49 Commits

Author SHA1 Message Date
Andreas Rheinhardt b800327f4c avformat/avformat: Add FFInputFormat, hide internals of AVInputFormat
This commit does for AVInputFormat what commit
59c9dc82f4 did for AVOutputFormat:
It adds a new type FFInputFormat, moves all the internals
of AVInputFormat to it and adds a now reduced AVInputFormat
as first member.

This does not affect/improve extensibility of both public
or private fields for demuxers (it is still a mess due to lavd).

This is possible since 50f34172e0
(which removed the last usage of an internal field of AVInputFormat
in fftools).

(Hint: tools/probetest.c accesses the internals of FFInputFormat
as well, but given that it is a testing tool this is not considered
a problem.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-07 08:53:31 -03:00
Anton Khirnov 08bebeb1be Revert "all: Don't set AVClass.item_name to its default value"
Some callers assume that item_name is always set, so this may be
considered an API break.

This reverts commit 0c6203c97a.
2024-01-20 10:34:48 +01:00
Andreas Rheinhardt 0c6203c97a all: Don't set AVClass.item_name to its default value
Unnecessary since acf63d5350adeae551d412db699f8ca03f7e76b9;
also avoids relocations.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-12-22 15:12:33 +01:00
Anton Khirnov 3562993d82 lavf/gifdec: do not mark as notimestamps
The demuxer does not set packet timestamps itself after
c6b6356635 and instead relies on the
parser to do it. However, this does not matter from the caller
perspective as it still happens inside the demuxer. The demuxer should
thus not be flagged as not having timestamps.
2023-10-03 16:57:02 +02:00
Paul B Mahol c6b6356635 avformat/gifdec: switch to using gif parser
Update fate test, more correct as last packet is not truncated.
2023-05-25 19:51:56 +02:00
Gyan Doshi cd7043131f avformat/gifdec: log loop count 2021-07-20 11:20:04 +05:30
Andreas Rheinhardt bc70684e74 avformat: Constify all muxer/demuxers
This is possible now that the next-API is gone.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-27 11:48:06 -03:00
Limin Wang 1dee8bf909 avformat/gifdec: -1 -> AV_BPRINT_SIZE_UNLIMITED
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
2020-07-08 23:09:29 +08:00
Carl Eugen Hoyos 4d8875ec23 lavf: Constify the probe function argument.
Reviewed-by: Lauri Kasanen
Reviewed-by: Tomas Härdin
2019-03-21 11:42:17 +01:00
Paul B Mahol 0aa5a7b2e9 avformat/gifdec: export duration, nb_frames and comment 2018-12-13 18:58:48 +01:00
Paul B Mahol 80f0f8660c avformat/gifdec: export sample aspect ratio 2018-12-13 18:58:48 +01:00
Derek Buitenhuis 6f69f7a8bf Merge commit '9200514ad8717c63f82101dc394f4378854325bf'
* commit '9200514ad8717c63f82101dc394f4378854325bf':
  lavf: replace AVStream.codec with AVStream.codecpar

This has been a HUGE effort from:
    - Derek Buitenhuis <derek.buitenhuis@gmail.com>
    - Hendrik Leppkes <h.leppkes@gmail.com>
    - wm4 <nfxjfg@googlemail.com>
    - Clément Bœsch <clement@stupeflix.com>
    - James Almer <jamrial@gmail.com>
    - Michael Niedermayer <michael@niedermayer.cc>
    - Rostislav Pehlivanov <atomnuker@gmail.com>

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2016-04-10 20:59:55 +01:00
Clément Bœsch 43ecec0f03 avformat: use AV_OPT_TYPE_BOOL in a bunch of places 2015-12-04 15:43:33 +01:00
Michael Niedermayer 46f15de8a4 avformat/gifdec: correct r_frame_rate for single frame gifs
Fixes Ticket4650

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-08-10 04:45:27 +02:00
Carl Eugen Hoyos 7de0fefeb5 lavf/gif: Add an option max_gif_delay to limit the frame duration.
Allows playback for the sample from ticket #4369 in less than 18 hours.
2015-03-29 12:31:00 +02:00
James Almer d34ec64a22 replace calls to url_feof() with avio_feof()
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-08 00:48:38 +02:00
Michael Niedermayer e1f8184a1a avformat/gifdec: make GIF_APP_EXT_LABEL parsing more robust
Fixes Ticket3021

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-04 23:26:40 +02:00
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