Michael Niedermayer
30872fa09b
ivi_common: Fix use of uninitialized warnings
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anton Khirnov
deabb52ab4
ivi_common: check that scan pattern is set before using it.
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Fixes CVE-2012-2791.
CC: libav-stable@libav.org
12 years ago
Anton Khirnov
07acdd651d
ivi_common: use proper logging context in ivi_decode_blocks().
12 years ago
Anton Khirnov
8ab42021f2
ivi_common: make some functions and tables static.
12 years ago
Anton Khirnov
df9b956751
lavc: fix decode_frame() third parameter semantics for video decoders
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It's got_frame, not data size
12 years ago
Anton Khirnov
594d4d5df3
lavc: add a wrapper for AVCodecContext.get_buffer().
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It will be useful in the upcoming transition to refcounted AVFrames.
12 years ago
Michael Niedermayer
0efcf16a3e
replace av_log(0, by av_log(NULL,
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The first parameter is a pointer and NULL is more correct
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
dab70c62d2
ivi_common: check ref_tile size, fix out of array accesses
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
a93c7ca6ef
ivi_common: more MV Checks, fixes out of array reads
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
4c6e7c2d4d
ivi_common: dont dereference null pointers.
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
5eaeb4237b
ivi_common: dc_transform is needed for intra
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Fixes CID90582 CID90536
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Diego Biurrun
87cdd7c694
ivi_common: Drop unused function parameter from decode_band()
12 years ago
Diego Biurrun
d5c62122a7
Move av_reverse table to libavcodec
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It is only used in that library.
12 years ago
Janne Grunau
6d556e8327
indeo4/5: remove constant parameter num_bands from wavelet recomposition
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Fixes bogus uninitialized value compiler and coverity warnings.
12 years ago
Anton Khirnov
ae3da0ae55
indeo4/5: check empty tile size in decode_mb_info().
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This prevents writing into a too small array if some parameters changed
without the tile being reallocated.
Based on a patch by Michael Niedermayer <michaelni@gmx.at>
Fixes CVE-2012-2800
CC:libav-stable@libav.org
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
12 years ago
Anton Khirnov
5d2170c53b
ivi_common: make ff_ivi_process_empty_tile() static.
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It's not used outside of ivi_common.c
12 years ago
Michael Niedermayer
b146d74730
indeo4: update AVCodecContext width/height on size change
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Fixes CVE-2012-2787
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
12 years ago
Michael Niedermayer
891918431d
indeo5dec: Make sure we have had a valid gop header.
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This prevents decoding happening on a half initialized context.
Fixes CVE-2012-2779
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
12 years ago
Anton Khirnov
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
12 years ago
Michael Niedermayer
8258697c49
ivi_common: skip null frames for all indeo variants
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Diego Biurrun
4f04f5cc8b
indeo: Make ivi_calc_band_checksum() static, it is only used in one file.
13 years ago
Diego Biurrun
9ccbdc0aca
indeo: Drop unused debug function ivi_check_band().
13 years ago
Kostya Shishkov
cf61aaaca1
indeo: check for invalid motion vectors
13 years ago
Kostya Shishkov
9603738221
indeo: check that band output buffer exists
13 years ago
Kostya Shishkov
23ba1503f2
indeo: clear allocated band buffers
13 years ago
Kostya Shishkov
a6e4ac40a6
indeo: track tile macroblock size
13 years ago
Kostya Shishkov
fe7a37c36f
indeo: check custom Huffman tables for errors
13 years ago
Kostya Shishkov
aa372cf470
factor out common decoding code for Indeo 4 and Indeo 5
13 years ago
Diego Biurrun
b1563d0cf9
ivi_common: Initialize a variable at declaration in ff_ivi_decode_blocks().
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This simplifies the code a bit and avoids an uninitialized variable warning.
13 years ago
Michael Niedermayer
e531e73a6f
indeo: Make sure the to be used vlc table has been initilaized.
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
93927eb334
ff_ivi_decode_blocks: fix negative scan_pos case.
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Fixes out of global array read.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
f0bf9e9c2a
indeo: Check allocated tile size in ff_ivi_process_empty_tile()
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This prevents writing into a too small array if some parameters changed
without the tile being reallocated.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
0846719dd1
indeo4: check transform size.
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Diego Biurrun
3dde147ff9
cosmetics: Consistently place static, inline and av_cold attributes/keywords.
13 years ago
Michael Niedermayer
c855ece101
indeo5: check motion vectors.
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fixes out of frame reading
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Martin Storsjö
e96b4a53df
vlc/rl: Add ff_ prefix to the nonstatic symbols
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Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Michael Niedermayer
b18a0cc781
indeo5: Fix null pointer dereference.
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Bug found by: Oana Stratulat
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
13 years ago
Michael Niedermayer
92e2b59dec
indeo5: fix division by 0 in ff_ivi_init_tiles()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
4b35ee0b7c
indeo5: fix null pointer crash with ref_mb
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Diego Biurrun
aaf47bcde7
Drop ALT_ prefix from BITSTREAM_READER_LE name.
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The prefix is a historic remnant that probably meant "alternative".
Now that the A32 bitstream reader has been dropped it makes no sense anymore.
13 years ago
Michael Niedermayer
f27930cd9a
indeo5: Fix null pointer dereference
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Fixes Ticket803
Bug found by: Oana Stratulat
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Diego Biurrun
f190f676bc
Replace custom DEBUG preprocessor trickery by the standard one.
14 years ago
Diego Biurrun
2366462429
Replace #ifdef + av_log() combinations by av_dlog().
14 years ago
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Daniel Kang
eb40d7ffa7
Check symbol validity to avoid a crash, fixes issue 2523.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26360 to svn://svn.ffmpeg.org/ffmpeg/trunk
14 years ago
Måns Rullgård
49bd8e4b84
Fix grammar errors in documentation
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Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Maxim Poliakovski
79d46cbea6
Quant changes only once per MB so move the corresponding scale factor assignment
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out of the block decoding loop. Indeo4 doesn't use any scale table but the quant
level itself as scale. Therefore access scale table only if its pointer != NULL.
Originally committed as revision 23569 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Maxim Poliakovski
0933f55829
Prepare Indeo4 (step 1): upscale indeo5 base tables by 2 and convert those into uint16_t.
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Originally committed as revision 23523 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Maxim Poliakovski
274793de6e
Make dequantization equation use less registers on some CPUs.
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Originally committed as revision 23391 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
Maxim Poliakovski
9c6b3b97d7
Add the forgotten ff_ prefix to the shareable scan patterns.
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Originally committed as revision 23341 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago