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Author SHA1 Message Date
Michael Niedermayer
f9581f1414 jpeg2000: Improve reduced resolution decoding 
Correctly scale down the component coordinates and
clean up some redundant code.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:46 +02:00
Michael Niedermayer
952f7ed3c0 jpeg2000: Compute quantization for 'scalar derived' in the correct case. 
Scalar derived case is represented by the JPEG2K_QSTY_SI define.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
4e11b15534 jpeg2000: Calculate code-block coord in ff_jpeg2000_init_component() 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Nicolas Bertrand <nicoinattendu@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
4cbd5ed11b jpeg2000: Fix compute precedence error in lut_gain index 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
b44925ae6b jpeg2000: Initialize code blocks structures in precincts to 0 
Prevent use of uninitialized memory / valgrind failure.

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
cf04af2086 jpeg2000: Check that we have enough components for MCT 
Avoid overread.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
b564784a20 jpeg2000: Check that there is a SOT before SOD 
Avoid overreads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
2c3901b2c3 jpeg2000: Remove unneeded returns 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
ef35d6dbc6 jpeg2000: Propagate error code from get_cox() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
78962d3df4 jpeg2000: Check that nreslevels2decode has been initialized before use 
Avoid buffer overread.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:45 +02:00
Michael Niedermayer
86a2602e16 jpeg2000: Drop unused and writeonly fields 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Michael Niedermayer
ac921338a4 jpeg2000: Correctly calculate sgnd 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Michael Niedermayer
fd54dd028b jpeg2000: check len before parsing header 
Avoid overread.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Michael Niedermayer
eae63e3c15 jpeg2000: Check component number in get_coc() and get_qcc() 
Avoid overreads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Nicolas Bertrand <nicoinattendu@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Michael Niedermayer
17e5d614a8 jpeg2000: Check zero bit-plane validity 
Prevent integer overflows.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Luca Barbato
7e201d575d jpeg2000: Validate block lengthinc 
Currently we are using an array with a static data size.

Similar to a patch with the same purpose by Michael Niedermayer.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Michael Niedermayer
278a923c51 jpeg2000: Validate SIZ parsing 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Michael Niedermayer
d3cb302b88 jpeg2000: Validate SOT parsing 
Avoid some overreads.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:44 +02:00
Michael Niedermayer
1a3598aae7 jpeg2000: Use bytestream2 
Prevent a number of overreads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:43 +02:00
Luca Barbato
5efadcb8cd jpeg2000: Clean up return paths and error messages 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:43 +02:00
Luca Barbato
be3271009e jpeg2000: Define the maximum decomposition levels 
And define the resolution levels according.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:43 +02:00
Michael Niedermayer
fbcc03db8f jpeg2000: Check code-block size 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Nicolas Bertrand <nicoinattendu@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:43 +02:00
Luca Barbato
5650e331a7 jpeg2000: Validate resolution levels 
There are 32 maximum decomposition levels, thus 33 resolution levels.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-07-02 20:05:43 +02:00
Anton Khirnov
8ad3267ce3 oggdec: do not fall back on binary search in the generic code. 
Binary search is already attempted in the format-specific seek function,
so the fallback is only reached if binary search failed already.
 2013-07-02 10:37:22 +02:00
Loren Merritt
c8b920a9b7 lls/x86: use 3-operator vaddpd in ADDPD_MEM 
Fixes build with yasm-1.1

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-07-02 10:15:09 +02:00
Luca Barbato
8bd9039900 Revert "indeo5: reject negative motion vectors" 
Negative motion vectors are possible.

This reverts commit 1194a41080.
 2013-07-01 06:49:46 +02:00
Luca Barbato
b36e1893ef indeo: check for reference when inheriting mvs 
The same is done already for qdelta.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-01 04:20:58 +02:00
Luca Barbato
1194a41080 indeo5: reject negative motion vectors 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-01 04:20:51 +02:00
Luca Barbato
dd3754a488 indeo: use proper error code 2013-07-01 04:17:46 +02:00
Luca Barbato
7388c0c586 indeo: Properly forward the error codes 
If the tile data size does not match the buffer size it did not
return an AVERROR_INVALIDDATA causing futher corruption later.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-07-01 04:17:46 +02:00
Loren Merritt
1221bb6239 x86: lpc: fix a segfault in av_evaluate_lls_sse2() 2013-06-30 23:11:19 +00:00
Luca Barbato
6765ee7b9c mjpeg: Check the unescaped size for overflows 
And contextually check init_get_bits success and fix the reporting
message.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-06-30 08:48:51 +02:00
Luca Barbato
7520d9779c mjpeg: Move code out of else branch 
Simplify the control flow and spare some vertical space.
 2013-06-30 08:46:55 +02:00
Derek Buitenhuis
7798a59dc1 avconv: Don't include colorspace.h 
The header is private, and avconv.c doesn't use it
for anything.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2013-06-29 14:24:02 -04:00
Luca Barbato
02ec656af7 wmapro: error out on impossible scale factor offsets 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-06-29 18:11:59 +02:00
Luca Barbato
d4a217a408 wmapro: check the min_samples_per_subframe 
Must be at least WMAPRO_BLOCK_MIN_SIZE.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-06-29 18:11:40 +02:00
Luca Barbato
183880cfc4 pictor: use the correct logging context 
Broken in 6d97484d72
 2013-06-29 18:11:12 +02:00
Loren Merritt
c93ccf5a4c lpc: use levinson for the first pass of multipass cholesky 
Levinson is faster, and cholesky is only needed if we want to apply different
weights to different samples, which doesn't happen on the first pass.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-06-29 13:26:52 +02:00
Loren Merritt
b545179fdf x86: lpc: simd av_evaluate_lls 
1.5x-1.8x faster on sandybridge

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-06-29 13:23:57 +02:00
Loren Merritt
502ab21af0 x86: lpc: simd av_update_lls 
4x-6x faster on sandybridge

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-06-29 13:23:57 +02:00
Loren Merritt
41578f70cf lpc: use function pointers, in preparation for asm 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-06-29 13:23:57 +02:00
Loren Merritt
cc6714bb16 lpc: remove "decay" argument 
We never used the rolling-average mode, and this makes av_update_lls 15% faster.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2013-06-29 13:23:57 +02:00
Luca Barbato
3822936252 wmapro: check num_vec_coeffs against the actual available buffer 
Prevent yet another buffer overwrite.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-06-28 13:16:35 +02:00
Luca Barbato
6652338f43 wmapro: return early on unsupported condition 
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-06-28 13:16:00 +02:00
Luca Barbato
e30b068ef7 wmapro: make sure there is room to store the current packet 
Prevent horrid and hard to trace struct overwrite.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2013-06-28 13:15:40 +02:00
Luca Barbato
afe03092dd lavc: move put_bits_left in put_bits.h 2013-06-28 13:14:12 +02:00
Luca Barbato
07c52e2c7c aac: return meaningful errors 2013-06-27 01:22:36 +02:00
Luca Barbato
6d8629aac1 aac: K&R formatting cosmetics 2013-06-27 01:22:06 +02:00
Alex Smith
4f6b192e2e configure: Do not omit frame pointers for msvc/icl debug builds 
Because O1 or O2 are required to build libav with msvc/icl, this must be
explicitly set instead of just omitting Oy.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2013-06-24 18:51:30 -04:00
Alex Smith
9f4a16c52e configure: Do not explicitly set Oy for msvc/icl 
It is implied by O1 or O2, both of which are required to build libav
with msvc/icl.  Silences warnings when targeting x64 with icl.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2013-06-24 18:51:20 -04:00