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521 Commits

Author SHA1 Message Date
James Almer
ae100046ca avcodec/exif: remove GetByteContext usage from avpriv_exif_decode_ifd() 
This prevents potential ABI issues with GetByteContext.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2017-10-26 00:45:49 -03:00
Anton Khirnov
78a7af823b Use the new AVIOContext destructor. 
(cherry picked from commit 6f554521af)
Signed-off-by: James Almer <jamrial@gmail.com>
 2017-09-01 02:16:33 -03:00
Michael Niedermayer
511e10f673 avformat/avidec: Move packet skip after prefix and related checks 
This fixes loosing packets
Fixes: big.avi

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-08-11 12:07:08 +02:00
Michael Niedermayer
a5d849b149 avformat/avidec: Limit formats in gab2 to srt and ass/ssa 
This prevents part of one exploit leading to an information leak

Found-by: Emil Lerner and Pavel Cheremushkin
Reported-by: Thierry Foucu <tfoucu@google.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-31 02:32:42 +02:00
Michael Niedermayer
78f6ec32a3 avformat/avidec: Fix txts fmts parsing 
Fixes: subtitle.avi from vlc/ticket/1162

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-31 02:32:42 +02:00
Clément Bœsch
bec96a7286 lavf: use av_fourcc2str() where appropriate 2017-03-29 14:49:29 +02:00
Clément Bœsch
cd4d6cba12 lavf: fix usages of av_get_codec_tag_string() 2017-03-29 14:49:29 +02:00
Clément Bœsch
1436769c57 Merge commit 'ca1e5eea0c7b72a6e30aa6488cfeced3a4853521' 
* commit 'ca1e5eea0c7b72a6e30aa6488cfeced3a4853521':
  Remove some pointless TRACE level debug code

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-24 13:23:52 +01:00
Clément Bœsch
554cc43ac6 Merge commit 'bad4aad4037f59ba0ad656164be9ab8f7a0fa2d4' 
* commit 'bad4aad4037f59ba0ad656164be9ab8f7a0fa2d4':
  avidec: Do not special case palette on big-endian

This commit is a noop, see 64cafe340b

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-23 11:26:32 +01:00
James Almer
4de591e6fb Merge commit '83548fe894cdb455cc127f754d09905b6d23c173' 
* commit '83548fe894cdb455cc127f754d09905b6d23c173':
  lavf: fix usage of AVIOContext.seekable

Merged-by: James Almer <jamrial@gmail.com>
 2017-03-21 17:02:30 -03:00
Tobias Rapp
5796048f6a avformat/avidec: clean-up identifier names 
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-01-03 13:46:55 +01:00
Tobias Rapp
6d579d7c1b avformat/avidec: skip odml master index chunks in avi_sync 
Fixes pts gaps when reading AVI files > 256GiB generated by FFmpeg.

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-12-23 21:47:47 +01:00
Andreas Cadhalpun
2c908f22c2 avidec: fix leaking extradata 
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2016-11-30 02:22:50 +01:00
Diego Biurrun
ca1e5eea0c Remove some pointless TRACE level debug code 
This also kills some warnings with certain compiler options.
 2016-10-27 12:54:14 +02:00
Carl Eugen Hoyos
31a0a84216 lavf/avidec: Be more verbose when ignoring very large tag size. 2016-10-18 15:01:50 +02:00
Carl Eugen Hoyos
a20f3238be lavf/avidec: Do not fail for very large idx1 tags. 
Fixes demuxing the sample file from github pull request 197,
the size of its idx1 tag is 6171936 bytes, followed by a JUNK
tag of 9505704 bytes.
 2016-10-18 00:25:41 +02:00
Vittorio Giovara
bad4aad403 avidec: Do not special case palette on big-endian 
This simplifies the code a bit, does not change output data in any way.
 2016-10-02 15:42:03 -04:00
Vittorio Giovara
497c087939 avidec: Set palette alpha as fully opaque 
Palette format is always in RGBA.
 2016-10-02 15:42:03 -04:00
Anton Khirnov
83548fe894 lavf: fix usage of AVIOContext.seekable 
It is supposed to be a flag. The only currently defined value is
AVIO_SEEKABLE_NORMAL, but other ones may be added in the future.
However all the current lavf code treats this field as a bool (mainly
for historical reasons).
Change all those cases to properly check for AVIO_SEEKABLE_NORMAL.
 2016-09-30 16:54:33 +02:00
Michael Niedermayer
2679ad4773 avformat/avidec: Check nb_streams in read_gab2_sub() 
Fixes null pointer dereference
Fixes: 1/null_point.avi

Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-09-28 16:46:24 +02:00
Michael Niedermayer
14bac7e00d avformat/avidec: Remove ancient assert 
This assert can with crafted files fail, a warning is already printed
for this case.

Fixes assertion failure
Fixes:1/assert.avi

Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-09-28 16:46:24 +02:00
James Almer
aa0dc698db avformat/avidec: remove warning about deprecated declarations 
Signed-off-by: James Almer <jamrial@gmail.com>
 2016-09-25 16:03:21 -03:00
Michael Niedermayer
b98dafe045 avformat/avidec: Fix memleak with dv in avi 
Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-09-25 19:06:51 +02:00
Michael Niedermayer
e4e4a9cad7 avformat/avidec: Fix infinite loop in avi_read_nikon() 
Fixes: 360/test.poc

Found-by: 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-09-02 13:57:40 +02:00
Clément Bœsch
8ef57a0d61 Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb' 
* commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb':
  cosmetics: Fix spelling mistakes

Merged-by: Clément Bœsch <u@pkh.me>
 2016-06-21 21:55:34 +02:00
Michael Niedermayer
d08f2c172f avformat/avidec: Detect index with too short entries 
Fixes Ticket5498

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-05-18 23:59:02 +02:00
Vittorio Giovara
41ed7ab45f cosmetics: Fix spelling mistakes 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-05-04 18:16:21 +02:00
Paul B Mahol
323b8c95e4 avformat: add AVFormatContext to ff_get_extradata() 
Needed for av_log() inside that function.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-04-14 18:21:08 +02:00
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
Mats Peterson
d8a1633ee4 lavf/avidec: Add blurb regarding the skipping of xxpc entries in the index 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-03-18 13:47:43 +01:00
Mats Peterson
caeed0479f lavf/avidec: Skip xxpc entries in index; fixes trac #5311 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-03-10 00:30:39 +01:00
Derek Buitenhuis
93629735d7 avformat: Add a protocol blacklisting API 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-03-04 16:13:42 +00:00
Anton Khirnov
9200514ad8 lavf: replace AVStream.codec with AVStream.codecpar 
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.

In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.

There are multiple important problems with this approach:
    - the fields in AVCodecContext are in general one of
        * stream parameters
        * codec options
        * codec state
      However, it's not clear which ones are which. It is consequently
      unclear which fields are a demuxer allowed to set or a muxer allowed to
      read. This leads to erratic behaviour depending on whether decoding or
      encoding is being performed or not (and whether it uses the AVStream
      embedded codec context).
    - various synchronization issues arising from the fact that the same
      context is used by several different APIs (muxers/demuxers,
      parsers, bitstream filters and encoders/decoders) simultaneously, with
      there being no clear rules for who can modify what and the different
      processes being typically delayed with respect to each other.
    - avformat_find_stream_info() making it necessary to support opening
      and closing a single codec context multiple times, thus
      complicating the semantics of freeing various allocated objects in the
      codec context.

Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
 2016-02-23 17:01:58 +01:00
Hendrik Leppkes
6a6cfeb2e7 Merge commit '5f3a081b42b84404a40a52c80ef7a354cf048c56' 
* commit '5f3a081b42b84404a40a52c80ef7a354cf048c56':
  avi: Spin out the logic to position to the next non-interleaved stream

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2015-12-08 09:41:43 +01:00
Hendrik Leppkes
e92aa34d7b Merge commit 'd017ed878a45171f2f6c69fb9d76401c3c494110' 
* commit 'd017ed878a45171f2f6c69fb9d76401c3c494110':
  avi: Use the correct data type

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2015-12-07 15:57:02 +01:00
Clément Bœsch
43ecec0f03 avformat: use AV_OPT_TYPE_BOOL in a bunch of places 2015-12-04 15:43:33 +01:00
Luca Barbato
5f3a081b42 avi: Spin out the logic to position to the next non-interleaved stream 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2015-12-02 23:49:10 +01:00
Luca Barbato
d017ed878a avi: Use the correct data type 
avio_tell returns an int64_t.
 2015-12-02 23:49:10 +01:00
Michael Niedermayer
0fc61c6ab6 avi: Validate the stream-id for DV as well 
Avoid false positives while syncing.

Bug-Id: ffmpeg/4086
Bug-Id: 879

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2015-12-02 23:49:10 +01:00
Hendrik Leppkes
c2f861ca42 Replace remaining occurances of av_free_packet with av_packet_unref 2015-10-27 14:35:30 +01:00
Hendrik Leppkes
7f5af80ba4 Merge commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457' 
* commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457':
  avpacket: Replace av_free_packet with av_packet_unref

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2015-10-27 14:28:56 +01:00
Luca Barbato
ce70f28a17 avpacket: Replace av_free_packet with av_packet_unref 
`av_packet_unref` matches the AVFrame ref-counted API and can be used as
a drop in replacement.

Deprecate `av_free_packet`.
 2015-10-26 18:00:55 +01:00
Michael Niedermayer
d64f7d4213 avformat/avidec: disable parsing for RV40 
Fixes: broken_rv40.avi

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-09-17 02:08:15 +02:00
Michael Niedermayer
59c1fec9fb avformat/avidec: Change (last)pos to 64bit 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-09-15 04:26:19 +02:00
Michael Niedermayer
3e2ef00394 avformat/avidec: Workaround broken initial frame 
Fixes Ticket4851

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-09-15 04:26:19 +02:00
Hendrik Leppkes
87c8812270 Merge commit '01bcc2d5c23fa757d163530abb396fd02f1be7c8' 
* commit '01bcc2d5c23fa757d163530abb396fd02f1be7c8':
  lavc: Drop deprecated destruct_packet related functions

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2015-09-05 16:50:09 +02:00
Vittorio Giovara
01bcc2d5c2 lavc: Drop deprecated destruct_packet related functions 
Deprecated in 10/2012.
 2015-08-28 16:01:16 +02:00
Michael Niedermayer
0d2a62d257 avformat/avidec: Simplify dshow_block_align based special case detection 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-08-12 22:51:40 +02:00
Michael Niedermayer
5f501f066e avformat/avidec: Disable AVSTREAM_PARSE_TIMESTAMPS for flac 
The flac parser does not support it, its also not needed.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-08-12 04:03:37 +02:00
Michael Niedermayer
254ff6e6bf avformat/avidec: Add flac to the dshow_block_align exception list 
Fixes Ticket4758

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-08-12 03:11:15 +02:00