d51d6ae9c4
vc1dec.c: Don't use uninitialized values of dmv_[x, y]
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MVDATA may or may not be transmitted. If it is not, both
dmv_x and dmv_y is to be assumed zero.
This may not trigger wrong picture in all systems, but
it's a bug nevertheless. Fixes SA10116.vc1 on my 64-bit
Windows 7.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-27 09:24:13 +08:00
b57d262412
mjpegbdec: Fix overflow in SOS.
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Based in part by a fix from Michael Niedermayer <michaelni@gmx.at>
Fixes CVE-2011-3947
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
2012-01-26 15:47:36 -08:00
324e818093
8bps: K&R formatting cosmetics
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-01-26 22:44:37 +01:00
9adf25c1cf
smacker: Sanity check huffman tables found in the headers.
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-01-26 10:18:00 -08:00
90c0c83e14
smacker: remove dead store
2012-01-26 10:17:04 -08:00
dac56d9ce0
qdm2: Check data block size for bytes to bits overflow.
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-01-26 10:17:04 -08:00
feaa40020b
vc1: always read the bfraction element for interlaced fields
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Previously, it would not be read if refdist_flag was not set, however
according to the spec and the reference decoder, it should always be read.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2012-01-26 15:19:27 +01:00
d78bb1a4b2
wma: Clip WMA1 and WMA2 frame length to 11 bits.
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The MDCT buffers in the decoder are only sized for up to 11 bits. The
reverse engineered documentation for WMA1/2 headers say that that for
all samplerates above 32kHz 11 bits are used. 12 and 13 bit support
were added for WMAPro. I was unable to make any Microsoft tools generate
a test file at a samplerate above 48kHz.
Discovered by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-01-25 12:31:37 -08:00
c3e10ae412
rv20: prevent calling ff_h263_decode_mba() with unset height/width
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Prevents a crash of VLC during playback of a invalid matroska file,
found by John Villamil <johnv@matasano.com>.
CC: libav-stable@libav.org
2012-01-25 16:18:54 +01:00
07a873a277
build: Automatically include architecture-specific library Makefile snippets.
2012-01-25 15:04:28 +01:00
366ac22ea5
indeo5: prevent null pointer dereference on broken files
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Found by John Villamil <johnv@matasano.com>
2012-01-25 14:31:57 +01:00
33ad8c3cab
cosmetics: Remove some unnecessary block braces.
2012-01-25 13:14:49 +01:00
c3af52fa8b
dsputil: use vertical component for drawing bottom edge.
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Current code only writes 8 pixels of vertical edge for YUV422, which
causes MC artifacts when subsequent frames use data from that edge.
2012-01-25 18:06:36 +08:00
efe68076da
aacenc: Fix identification padding when the bitstream is already aligned.
2012-01-24 12:55:21 -08:00
cdfe94c5ab
aacenc: Write correct length for long identification strings.
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When the length is the escape value (15), the new length is calculated by
15 + get_bits(8) - 1.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-24 12:54:59 -08:00
02e7dbf5ad
adpcm_ima_ws: fix stereo decoding
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Stereo ADPCM IMA WS is planar for VQA version 3 and 2-sample interleaved for
VQA version 2.
2012-01-24 14:13:46 -05:00
220506d23f
avcodec: add a new codec_id for CRYO APC IMA ADPCM.
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The stereo layout and extradata is significantly different from that in
Westwood IMA ADPCM, so a separate codec_id is warranted.
2012-01-24 14:13:41 -05:00
1381e9bc92
lavc: postpone the removal of AVCodecContext.request_channels.
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Although it has been deprecated for a long time, its intended
replacement (request_channel_layout) is not actually used anywhere, so
request_channels is currently the only way to access that functionality.
2012-01-24 18:04:19 +01:00
af0292f33a
lavc: postpone removing old audio encoding and decoding API
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It has been deprecated only recently.
2012-01-24 18:04:19 +01:00
1d3a9e63e0
rv10: verify slice offsets against buffer size
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Found by John Villamil <johnv@matasano.com> in fuzzed rv20 in mkv files.
2012-01-24 02:16:02 +01:00
9292fe4a1d
aacenc: Simplify windowing
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
7946a5acfb
aacenc: Move saved overlap samples to the beginning of the same buffer as incoming samples.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
9b8e2a8709
aacenc: Deinterleave input samples before processing.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
04af2efaae
aacenc: Store channel count in AACEncContext.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
80d44277e6
aacenc: Move Q^3/4 calculation to it's own table
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This should be moved to tablegen at some point.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
025ccf1f8b
aacenc: Request normalized float samples instead of converting s16 samples to float.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:46 -08:00
6381f913d1
aacpsy: Replace an if with FFMAX in LAME windowing.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:45 -08:00
207bf44d16
aacenc: cosmetics, replace 'rd' with 'bits' in codebook_trellis_rate to make it more clear what is being calculated.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:45 -08:00
843cd4a3ed
aacpsy: cosmetics, change a FIXME to a NOTE about subshort comparisons
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Also fix a typo.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:45 -08:00
5310704190
aacenc: cosmetics: move init() and end() to the bottom of the file.
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Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:45 -08:00
17ae608127
aacenc: aac_encode_init() cleanup
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Macroify sanity checks and check return values of allocs and other functions.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-23 11:40:45 -08:00
27ed027bcd
XWD encoder and decoder
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Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2012-01-23 19:04:35 +01:00
7662a532fb
vc1: don't read the interpfrm and bfraction elements for interlaced frames
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This matches the spec as well as the reference decoder, and fixes a bug
with interlaced frame decoding.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
2012-01-23 19:04:14 +01:00
66b9d7065a
pam: Fix a typo that broke writing and reading PAM files.
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Reported and reviewed by Derek Buitenhuis.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2012-01-22 16:38:20 +01:00
2473a45c85
threads: change the default for threads back to 1
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Using threaded decoding by default breaks backward compatibility if
AVHWAccel is used or if an appliction sets threadunsafe callbacks.
Avconv and avplay still use -threads auto if not specified.
2012-01-21 13:26:44 +01:00
afb8b207d6
threads: update slice_count and slice_offset from user context
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They are used to signal the number of slices and offsets of each slice
out of band to the decoder.
2012-01-21 13:26:44 +01:00
d2a0041c20
mpegaudiodec: switch error detection check to AV_EF_BUFFER
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
2012-01-21 08:38:12 +01:00
f88949214c
lavc: rename err_filter option to err_detect and document it
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
2012-01-21 08:28:18 +01:00
9b6aafba6c
mpegvideo: fix invalid memory access for small video dimensions
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When either video dimension is only one macroblock, subtractions
based on v_edge_pos and the macroblock size may be negative. In
that situation, an unsigned comparison isn't sufficent to test for
MV overruns, because a limit of (unsigned)-1 will let any other
value pass.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2012-01-21 08:28:08 +01:00
c3d5e290ca
ARM: fix build with FFT enabled and MDCT disabled
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Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-01-20 16:14:01 +00:00
a85ce653fb
mpeg12: check for available bits to avoid an infinite loop
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Signed-off-by: Jindrich Makovicka <makovick@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-01-19 14:14:21 +01:00
ac84f2edd4
error_resilience: K&R formatting cosmetics
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-01-18 18:10:01 +01:00
01ed1c390d
tta: cast output data pointer to the correct type
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fixes "warning: assignment from incompatible pointer type"
2012-01-17 09:41:13 -05:00
9e12002f11
rv34: add NEON rv34_idct_add
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Overall almost 4% faster, idct_add down from 350 to 85 cycles, idct_dc_add
down from 83 to 30 cycles.
squash: rv34 idct rearrange partial register loads
2012-01-16 19:26:41 +01:00
9ba9c34024
rv34: 1-pass inter MB reconstruction
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Implement 1-pass inverse transform and reconstruction for inter blocks.
2012-01-16 19:26:41 +01:00
d859191322
pictordec: Use bytestream2 functions
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Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-01-15 22:44:00 -05:00
05f95443ca
pcmenc: use AVCodec.encode2()
2012-01-15 21:24:18 -05:00
a6ccae3f4c
avcodec: bump minor version and add APIChanges for the new audio encoding API
2012-01-15 21:24:17 -05:00
b2c75b6e63
avcodec: Add avcodec_encode_audio2() as replacement for avcodec_encode_audio()
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This allows audio encoders to optionally take an AVFrame as input and write
encoded output to an AVPacket.
This also adds AVCodec.encode2() which will also be usable by video and
subtitle encoders once support is implemented in the public functions.
2012-01-15 21:24:17 -05:00
5ee5fa021f
avcodec: add a public function, avcodec_fill_audio_frame().
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This is a convenience function for the user to fill audio AVFrame information.
2012-01-15 21:24:17 -05:00
Mashiat Sarker Shakkhar
Alex Converse
Paul B Mahol
Hendrik Leppkes
Janne Grunau
Diego Biurrun
Ronald S. Bultje
Michael Niedermayer
Justin Ruggles
Anton Khirnov
Nathan Caldwell
Carl Eugen Hoyos
Dustin Brody
John Brooks
Felipe Contreras
Jindřich Makovička
Donald Ovcharov
Christophe GISQUET
Laurentiu Ion