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Commit Graph

37567 Commits

Author SHA1 Message Date
Luca Barbato
59d7bb99b6 4xm: check bitstream_size boundary before using it
Prevent buffer overread.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-12 14:45:46 +02:00
Luca Barbato
fbd0dacc8d 4xm: refactor decode_p_block
Directly return from code 1, 2 and 6 codepaths and simplify the
remaining one to have a single overflow check and a single call to
mcdc.
2013-06-12 14:45:46 +02:00
Luca Barbato
94aefb1932 4xm: do not overread the source buffer in decode_p_block
Check for out of picture macroblocks before calling mcdc.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-12 14:45:46 +02:00
Luca Barbato
be373cb50d 4xm: do not overread the prestream buffer
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-12 14:45:46 +02:00
Luca Barbato
de2e5777e2 4xm: validate the buffer size before parsing it
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-12 14:45:46 +02:00
Luca Barbato
145023f572 4xm: reject frames not compatible with the declared version
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-12 14:45:46 +02:00
Luca Barbato
1f0c607560 4xm: drop pointless assert
Make sure the value of wlog2 is always between 0 and 3.
2013-06-12 14:45:46 +02:00
Luca Barbato
b8b809908e 4xm: forward errors from decode_p_block
Partially mitigate out of memory writes.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-12 14:45:46 +02:00
Luca Barbato
50ec1db62d 4xm: fold last_picture lazy allocation in decode_p_frame 2013-06-12 14:45:46 +02:00
Luca Barbato
42d73f7f6b 4xm: do not overread while parsing header
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-12 14:45:46 +02:00
Luca Barbato
e7a44f87d0 4xm: refactor fourxm_read_header
Split sound and video tag parsing in separate functions.
2013-06-12 14:45:46 +02:00
Luca Barbato
e6496ea7e7 4xm: K&R formatting cosmetics 2013-06-12 14:45:46 +02:00
Luca Barbato
08859d19b4 4xm: use the correct logging context 2013-06-12 14:45:46 +02:00
Michael Niedermayer
7ad5708691 g2meet: Fix a typo in the height comparison
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-12 13:45:53 +02:00
Kostya Shishkov
7dfc3381dd g2meet: do not leak buffers 2013-06-12 09:54:45 +02:00
Kostya Shishkov
4d960d7f60 g2meet: more graceful cursor loading 2013-06-12 09:54:45 +02:00
Kostya Shishkov
767ae86cee g2meet: reset dimensions on header parsing errors 2013-06-12 09:54:45 +02:00
Anton Khirnov
84d3ff50cd lavc: add a libwavpack encoder wrapper 2013-06-10 21:33:48 +02:00
Anton Khirnov
799f57ac96 lavc: use AVFrame API properly in pad_last_frame().
This also simplifies the code.
2013-06-10 21:19:51 +02:00
Sean McGovern
8835c554ff matroskadec: introduce resync function.
This allows handling matroska files with errors.
Fixes test4.mkv and test7.mkv from the official Matroska test suite,
and by extension Bugzilla #62.

Based on a patch by Reimar Doffinger <Reimar.Doeffinger@gmx.de>

Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-06-10 20:51:35 +02:00
Martin Storsjö
3965d404cc configure: Don't add -fPIC on windows targets
This avoids warnings about this option not having any effect on
this platform.

We still want to enable the pic configure item for these platforms
(if detected via the compiler builtin define __PIC__) to get proper
inline assembly workarounds.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-10 14:32:13 +03:00
Martin Storsjö
3fd0d166aa configure: Don't explicitly disable PIC for windows targets
This reverts e08c946c6 and 05165c2f7a. The actual intention of
e08c946c6 was to fix shared library builds for arm/win32, which
can also be accomplished in other ways.

Disabling pic on those platforms broke inline assembly on cygwin/64
(since some inline assembly requires knowing whether we are building
as PIC or not), and might also break inline assembly on other
compilers on windows.

As a side-effect, this unfortunately brings back all the warnings
about PIC not having any effect on that platform.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-10 14:32:10 +03:00
Martin Storsjö
2aa3325454 configure: arm: Don't try to enable pic for shared libraries on win32
The object file format doesn't support PIC loads in ARM assembly,
there are no relocation types in PE/COFF that correspond to
BFD_RELOC_32_PCREL (R_ARM_REL32 in ELF).

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-10 14:32:06 +03:00
Yusuke Nakamura
252ee3d39b utvideodec: Set colorspace by codec_tag.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2013-06-10 09:38:22 +02:00
Yusuke Nakamura
2578f1efd6 riff: Support ULH0 and ULH2 fourccs.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2013-06-10 09:37:53 +02:00
Yusuke Nakamura
b441fdeb15 utvideodec: Support ULH0 and ULH2 formats.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2013-06-10 09:37:53 +02:00
Luca Barbato
a3b2b83f01 faxcompr: return meaningful errors
And optionally forward them to the caller instead of concealing them.

Unify err and ret in a single variable.
2013-06-07 17:23:53 +02:00
Luca Barbato
f32aefcf34 faxcompr: K&R formatting cosmetics 2013-06-07 17:23:53 +02:00
Luca Barbato
9c22169769 tiff: do not overread the source buffer
At least 2 bytes from the source are read every loop.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2013-06-07 17:23:53 +02:00
Luca Barbato
999ccd2d0a tiff: cleanup the error paths
Return the proper error values and optionally report them.
2013-06-07 17:23:53 +02:00
Luca Barbato
016c5b066d tiff: refactor fax support in a separate function 2013-06-07 17:23:53 +02:00
Luca Barbato
103937681d tiff: refactor deflate support in a separate function
Report when zlib support is missing.
2013-06-07 17:23:53 +02:00
Luca Barbato
f8a4d5e970 h264_parser: K&R formatting cosmetics 2013-06-07 16:54:55 +02:00
Luca Barbato
92b3caa108 vorbis: return meaningful errors 2013-06-07 16:54:16 +02:00
Martin Storsjö
aa2c918f7d rtpdec: Fix the alphabetical ordering in registering depacketizers
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-06 19:56:05 +03:00
Martin Storsjö
2681924b0f libavformat: Fix standalone compilation of the webm muxer
The missing object file was added to the matroska muxer already, but
not to the webm muxer.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-06 19:55:53 +03:00
Anton Khirnov
e816aaacd6 apetag: use int64_t for filesize
CC: libav-stable@libav.org
2013-06-04 17:20:19 +02:00
Anton Khirnov
274e134e49 avconv: check that the output format context exists before accessing it
Fixes a segfault in exit_program() if opening an output file fails.
2013-06-04 17:20:04 +02:00
Anton Khirnov
8b7dffc2d6 lavfi doxy: improve/extend AVFilter doxy. 2013-06-04 17:18:33 +02:00
Luca Barbato
9835abb6d6 network: uniform ff_listen_bind and ff_listen_connect
Document the functions and have both use a millisecond timeout and
check for interrupt.
2013-06-04 14:56:52 +02:00
Andrey Semashev
7c020e1ad3 movenc: Grow the frag_info array in chunks
Previously it was grown one element at a time, which leads to
excessive reallocations.

Bug-Id: 525
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-04 15:05:42 +03:00
Andrey Semashev
ab1189766a movenc: Increase the cluster array allocation by doubling
The previous allocation increment of 16384 meant that the cluster
array was allocated for 0.6 MB initially, which is a bit excessive
for cases with fragmentation where only a fraction of that ever
actually is used.

Therefore, start off at a much smaller value, and increase by
doubling (to avoid reallocating too often when writing long
non-fragmented mp4 files).

Bug-Id: 525
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-04 15:05:31 +03:00
Andrey Semashev
3b4feac1ec movenc: Keep track of the allocated size for the cluster array
When writing fragmented mp4, the cluster array is reset when a
fragment is written. Instead of starting off reallocating the
array only based on the number of current elements in it, keep
track of how many elements there were allocated earlier.

This avoids reallocating this array needlessly when writing
fragmented mp4 files.

Bug-Id: 525
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-04 15:05:12 +03:00
Martin Storsjö
fc962d4e7a mem: Add av_realloc_array and av_reallocp_array
These help avoiding overflows and simplify error handling.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-04 15:04:08 +03:00
Martin Storsjö
9683e37cd5 movenc: Change the track struct name to match the typedef
This makes the struct name (which isn't used anywhere) match the
name of the typedef, as for all the other structs declared in this
header.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-03 11:08:18 +03:00
Kostya Shishkov
2d66a58ccd Go2Webinar decoder 2013-06-03 09:24:55 +02:00
Kostya Shishkov
31980b6abd vmd: decode videos with no LZ buffer size provided - they might not need it
The buffer is used for an additional pass of frame compression, so videos
can be coded without ever using it (and some are coded so indeed, e.g. in
Woodruff and the Schnibble of Azimuth game).
2013-06-02 19:08:09 +02:00
Kostya Shishkov
0aed0bfc62 vmd: fix mode 3 decoding 2013-06-02 19:07:31 +02:00
Diego Biurrun
c011ceef78 swscale: ppc: Remove commented-out define cruft 2013-06-02 18:11:59 +02:00
Diego Biurrun
9f84ed8cc3 nsvdec: Remove commented-out debug cruft 2013-06-02 18:11:58 +02:00