Michael Niedermayer
cfc7b9cfff
4xm: remove avcodec_get_frame_defaults() calls
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They are not needed anymore
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
d73b65ed0e
4xm: add assert to check that the pointer from read_huffman_tables is within the array
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
53a3fdbfc5
4xm: Check available space in read_huffman_tables()
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Fixes integer overflow and out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Diego Biurrun
88bd7fdc82
Drop DCTELEM typedef
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It does not help as an abstraction and adds dsputil dependencies.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
12 years ago
Anton Khirnov
aa15afb7ce
4xm: simplify code with FFSWAP
12 years ago
Anton Khirnov
10c26e928a
4xm: return meaningful error codes
12 years ago
Anton Khirnov
f7d15d2f42
4xm: operate with pointers to AVFrames instead of whole structs.
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This is more correct and avoids breaking extended_data.
12 years ago
Anton Khirnov
85383d139a
4xm: eliminate a pointless indirection
12 years ago
Anton Khirnov
b047c68783
4xm: don't rely on get_buffer() initializing the frame.
12 years ago
Michael Niedermayer
5ffb5e7a2d
4xm: check the correct stream, fix fate
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Paul B Mahol
44fe118e0a
lavc/4xm: use bytestream2_get_bytes_left
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Also replace relevant bytestream2 functions with unchecked variants due
code that already checks for overreads.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
12 years ago
Diego Biurrun
511cf612ac
miscellaneous typo fixes
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
Paul B Mahol
a5e382ad7f
4xm: return error code if decode_init() failed
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
12 years ago
Michael Niedermayer
aed128f07d
4xmdec: fix integer overflow, null ptr dereference
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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
c433823750
4xmdec: test version for cfrms, 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
Anton Khirnov
716d413c13
Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat
12 years ago
Piotr Bandurski
53241b5dc7
lavc: add missing new line to some messages
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anton Khirnov
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
12 years ago
Michael Niedermayer
7925f923a5
4xm: use av_assert()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Mans Rullgard
acb2c79c21
4xm: fix invalid array indexing
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Indexing outside arrays is invalid and breaks with gcc 4.8.
Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years ago
Diego Biurrun
a92be9b856
Replace memset(0) by zero initializations.
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Also remove one pointless zero initialization in rangecoder.c.
13 years ago
Michael Niedermayer
ae76c1af16
4xm: make mcdc() src const
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Martin Storsjö
9cf0841ef3
dsputil: Add ff_ prefix to the dsputil*_init* functions
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Signed-off-by: Martin Storsjö <martin@martin.st>
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
Yordan Makariev
0c5d78a898
4xm, timefilter: K&R formatting cosmetics
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
13 years ago
Alex Converse
7181c4edee
cosmetics: Remove extra newlines at EOF
13 years ago
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>
13 years ago
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).
13 years ago
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>
13 years ago
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>
13 years ago
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>
13 years ago
Anton Khirnov
d09298f0d6
4xm: remove unused variables.
13 years ago
Shitiz Garg
355d917c0b
4xm: Add a check in decode_i_frame to prevent buffer overreads
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Fixes bugzilla #135
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
13 years ago
Aneesh Dogra
1443ea93d9
4xm: Use bytestream2 functions to prevent overreads
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Fixes Bug 110.
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
13 years ago
Justin Ruggles
bc78ceec2b
4xm: remove unneeded check for remaining unused data.
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This is unnecessary complication that only prints a message and does not
affect decoding.
13 years ago
Michael Niedermayer
e1ba29c764
4xm: check if there are bits left in decode_i_block()
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Fixed Ticket753
Bug Found by: Diana Elena Muscalu
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Reimar Döffinger
371e165443
Try to set AVFrame.reference to correct values.
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I am not sure these new values are correct, not am I sure
the semantics are a good idea since we do not seem to make any
use of them but they caused a lot of confusion, but this
seems to make things closer to matching the documentation.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
13 years ago
Laurent Aimar
1b1182ce97
4xm: prevent NULL dereference with invalid huffman table
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
13 years ago
Laurent Aimar
8d518a9c4f
4xm: clear FF_INPUT_BUFFER_PADDING_SIZE bytes in temporary buffers
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Signed-off-by: Janne Grunau <janne-libav@jannau.net>
13 years ago
Mans Rullgard
84dda40762
4xm: fix signed overflow
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Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years ago
Laurent Aimar
db5b487551
Reject video with non multiple of 16 width/height in the 4xm decoder.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
0a19b4b0ba
4xm decoder: fix data size for i2 frames.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
1008f639e2
4xm decoder: print some error messages in case of errors.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Laurent Aimar
9c661e952f
Check for out of bound accesses in the 4xm decoder.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Laurent Aimar
90a69b2f61
Clear FF_INPUT_BUFFER_PADDING_SIZE bytes at the end of the temporary buffers used in 4xm decoder.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Laurent Aimar
4a8ff0636d
Prevent NULL dereference when the huffman table is invalid in the 4xm decoder.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Anton Khirnov
ec6402b7c5
lavc: use designated initialisers for all codecs.
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It's more readable and less prone to breakage.
14 years ago
Stefano Sabatini
01042d4123
lavc: set defaults in internal codec frames
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This is required specifically for setting frame->format to -1,
otherwise it will be set to 0 = PIX_FMT_YUV420P and code reading
the format from the output decoded frame will get misled.
In particular fix regressions occurring with the pending vsrc_buffer
patch.
14 years ago