Janne Grunau
be540e0cb3
indeo3: check motion vectors for validity
...
Fixes null pointer dereferences in fuzzed files found by Oana Stratulat.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2012-01-07 09:41:11 +01:00
Michael Niedermayer
b18a0cc781
indeo5: Fix null pointer dereference.
...
Bug found by: Oana Stratulat
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2012-01-07 00:18:42 +01:00
Janne Grunau
73b16198b6
electronicarts: check bytes per sample for validity
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Prevents division by zero.
2012-01-07 00:18:42 +01:00
Laurentiu Ion
b348c852aa
flicvideo: fix invalid reads
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Prevent invalid reads using bytestream2 functions.
Fixes bug #126 .
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-01-06 16:48:27 -05:00
Chris Evans
57cd6d7095
vorbis: Avoid some out-of-bounds reads
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Fixes Bug: #190
Chromium Bug: #100543
Related to CVE-2011-3893
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
2012-01-06 19:58:22 +01:00
Paul B Mahol
f86209b43d
vqf: add more known extensions
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-06 09:24:40 -08:00
Diego Biurrun
3aa3fc45fe
cabac: remove unused function renorm_cabac_decoder
2012-01-06 13:37:55 +01:00
Diego Biurrun
301fb92131
h264: Only use symbols from the SVQ3 decoder under proper conditionals.
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Fixes --disable-everything --enable-decoder=h264 --disable-optimizations.
2012-01-06 13:37:53 +01:00
Justin Ruggles
6e8bf6db48
add bytestream2_tell() and bytestream2_seek() functions
2012-01-05 23:36:36 -05:00
Janne Grunau
f907615f08
parsers: initialize MpegEncContext.slice_context_count to 1
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The mpeg4 video, H264 and VC-1 parser hold (directly or indirectly)
a MpegEncContext in their private context. Since they do not call the
common mpegvideo init function slice_context_count has explicitly set
to 1.
Prevents a null pointer dereference in the h264 parser and fixes
bug 193.
2012-01-06 01:47:45 +01:00
Anssi Hannula
580bb77936
spdifenc: use special alignment for DTS-HD length_code
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Align IEC 61937 length_code for DTS-HD so that
(length_code & 0xf) == 0x8. This is reportedly needed with some
receivers.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-05 16:27:07 -08:00
Janne Grunau
f5be84cfbc
ipmovie: do not read audio packets before the codec is known
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Prevents a division by zero.
2012-01-05 23:19:14 +01:00
Janne Grunau
696ace50ea
truemotion2: check size before GetBitContext initialisation
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Prevents null ptr derefence for negative sizes.
2012-01-05 23:19:13 +01:00
Martin Storsjö
acb074301c
avio: Only do implicit network initialization for network protocols
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The implicit network initialization is set to be removed in the
future, but is kept for compatibility. By not doing the implicit
initialization for non-network protocols, we avoid the warning
about avformat_network_init() not being called for these, where
it really doesn't make much sense.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-01-05 23:56:56 +02:00
Martin Storsjö
32b83aeec1
avio: Add an URLProtocol flag for indicating that a protocol uses network
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This definition is in two files, since the definitions will move
to the private header at the next bump.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-01-05 23:56:52 +02:00
Janne Grunau
bb5b3940b0
adpcm: ADPCM Electronic Arts has always two channels
2012-01-05 22:29:18 +01:00
Chris Evans
faaec4676c
matroskadec: Fix a bug where a pointer was cached to an array that might later move due to a realloc()
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Fixes bug #190
Chromium bug #100492
related to CVE-2011-3893
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
2012-01-05 21:21:57 +01:00
Alex Converse
ce23b2af18
fate: Add missing reference file from 9b4767e4
.
2012-01-05 11:14:23 -08:00
Alex Converse
4274e481c0
mov: Support MOV_CH_LAYOUT_USE_DESCRIPTIONS for labeled descriptions.
2012-01-05 10:34:06 -08:00
Aneesh Dogra
9b55b4bb3a
4xm: Prevent buffer overreads.
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4xm decoder while decoding i2 frames can overread the buffer if proper checks
are not made.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-05 09:37:16 -08:00
Janne Grunau
e268a352af
mjpegdec: parse RSTn to prevent skipping other data in mjpeg_decode_scan
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Check explicitly if enough bits are left to prevent an infinite loop
when the bitstream buffer is not followed by zero-padding.
Based on patches by Michael Niedermayer <michaelni@gmx.at>.
2012-01-05 18:20:35 +01:00
Janne Grunau
5e5cde2745
vp3: add fate test for non-zero last coefficient
2012-01-05 18:18:08 +01:00
Janne Grunau
9b4767e478
vp3: fix streams with non-zero last coefficient
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Fixes a regression introduced in 8b94df0f20
.
2012-01-05 18:18:08 +01:00
Ronald S. Bultje
2ba65879b5
swscale: remove unused U/V arguments from yuv2rgb_write().
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Also document the function somewhat.
2012-01-05 07:17:01 -08:00
Diego Biurrun
dff4af448d
timer: K&R formatting cosmetics
2012-01-05 14:48:30 +01:00
Anton Khirnov
f9b9dd8740
lavf: cosmetics, reformat av_read_frame().
2012-01-05 14:34:28 +01:00
Anton Khirnov
6450599e22
lavf: refactor av_read_frame() to make it easier to understand.
2012-01-05 14:34:13 +01:00
Oana Stratulat
7f09791d28
Report an error if pitch_lag is zero in AMR-NB decoder.
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This fixes an infinite loop in the decoder on specially
crafted files, and fixes bug 151.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-04 21:33:14 -08:00
Ronald S. Bultje
3fa646e859
Revert "4xm: Prevent buffer overreads."
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This reverts commit 295a7c0238
. The
patch breaks decoding of regular files (e.g. fate-4xm-2).
2012-01-04 21:27:31 -08:00
Aneesh Dogra
295a7c0238
4xm: Prevent buffer overreads.
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4xm decoder while decoding i2 frames can overread the buffer if proper checks
are not made.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-04 21:15:50 -08:00
Aneesh Dogra
4b84f68223
4xm: pass the correct remaining buffer size to decode_i2_frame().
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frame_size is the number of bytes left in the packet, so if we are passing
buf-4 we can safely read frame_size+4 bytes.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-04 21:10:11 -08:00
Aneesh Dogra
893f137679
4xm: fix calculation of the next output line position in decode_i2_frame().
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The current code doesn't work unless width is an exact multiple of 16.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-04 21:09:22 -08:00
Shitiz Garg
feb15cee5e
mtv: Make sure audio_subsegments is not 0
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audio_subsegments would be 0 and cause floating point exceptions
Fixes bugzilla #144
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-01-04 17:47:19 -05:00
Janne Grunau
f13a9ca906
v4l2: use V4L2_FMT_FLAG_EMULATED only if it is defined
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V4L2_FMT_FLAG_EMULATED was added in 2.6.32.
2012-01-04 21:34:29 +01:00
Anton Khirnov
e8c04f6240
avconv: add symbolic names for -vsync parameters
2012-01-04 21:25:25 +01:00
Jean First
2df73eefb4
flvdec: Fix compiler warning for uninitialized variables
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These can't be used uninitialized in practice, but the
compiler doesn't realize it.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-01-04 22:15:47 +02:00
Jean First
4be386b318
rtsp: Fix compiler warning for uninitialized variable
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This one won't ever be used uninitialized in practice, but
the compiler doesn't realize it.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-01-04 22:15:42 +02:00
Ronald S. Bultje
89d26797f5
ulti: convert to new bytestream API.
2012-01-04 10:57:37 -08:00
Diego Biurrun
3d72a6f19e
swscale: Use standard multiple inclusion guards in ppc/ header files.
2012-01-04 16:39:37 +01:00
Diego Biurrun
00a1cdd264
Place some START_TIMER invocations in separate blocks.
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This fixes compilation failures related to START_TIMER/STOP_TIMER macros and
-Werror=declaration-after-statement. START_TIMER declares variables and thus
may not be placed after statements outside of a new block.
2012-01-04 15:05:49 +01:00
Luca Barbato
a6a4793d04
v4l2: list available formats
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Make use of the experimental framesize enumeration ioctl if available.
2012-01-04 13:10:20 +01:00
Luca Barbato
cd2bbad303
v4l2: set the proper codec_tag
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Unbreak direct streamcopy.
2012-01-04 13:10:20 +01:00
Luca Barbato
eb89b4fc09
v4l2: refactor device_open
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Check capabilities directly in the function, further simplify the code.
2012-01-04 13:10:20 +01:00
Luca Barbato
246007d370
v4l2: simplify away io_method
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Only mmap is supported.
2012-01-04 13:10:20 +01:00
Luca Barbato
a896d7f45a
v4l2: cosmetics
2012-01-04 13:10:20 +01:00
Luca Barbato
21aa6ae4fb
v4l2: uniform and format options
2012-01-04 13:10:20 +01:00
Luca Barbato
af7123b2ad
v4l2: do not force interlaced mode
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Video4linux2 supports both interlaced and non-interlaced mode, do not
ask for interlaced if not necessary.
2012-01-04 13:10:20 +01:00
Janne Grunau
a2d1d21629
avio: exit early in fill_buffer without read_packet
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Fixes an invalid free() with ass in avi. The sample in bug 98 passes
parts of AVPacket.data as buffer for the AVIOContext. Since the packet
is quite large fill_buffer tries to reallocate the buffer before doing
nothing. Fixes bug 98.
2012-01-04 11:18:24 +01:00
John Brooks
d209c27b09
vc1dec: fix invalid memory access for small video dimensions
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For small video dimensions, these calculations of the upper bound
for pixel access may have a negative result. Using an unsigned
comparison to bound a potentially negative value only works if
the greater operand is non-negative. Fixed by doing edge emulation
when the upper bound is probably negative, everywhere that this
pattern appears.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2012-01-04 10:35:26 +01:00
John Brooks
aacf6b3a2f
rv34: fix invalid memory access for small video dimensions
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For small video dimensions calculations of the upper bound for pixel
access may result in negative value. Using an unsigned comparison
works only if the greater operand is non-negative. This is fixed by
doing edge emulation explicitly for such conditions.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2012-01-04 10:32:23 +01:00