Commits · a458b91cf4350bb170b4e651c0ada92f0e9dcd84 · Linshizhi / ffmpeg.wasm-core

02 Jul, 2013 26 commits

jpeg2000: Split int/float codepaths depending on the DWT · a458b91c
Michael Niedermayer authored Jul 01, 2013
```
DWT53 is always int, DWT97 is always float.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
a458b91c

jpeg2000: Improve reduced resolution decoding · f9581f14

Michael Niedermayer authored Jul 01, 2013

Correctly scale down the component coordinates and
clean up some redundant code.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

f9581f14

jpeg2000: Compute quantization for 'scalar derived' in the correct case. · 952f7ed3
Michael Niedermayer authored Jul 01, 2013
```
Scalar derived case is represented by the JPEG2K_QSTY_SI define.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
952f7ed3

jpeg2000: Calculate code-block coord in ff_jpeg2000_init_component() · 4e11b155

Michael Niedermayer authored Jul 01, 2013

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>

4e11b155

jpeg2000: Fix compute precedence error in lut_gain index · 4cbd5ed1
Michael Niedermayer authored Jul 01, 2013
```
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
4cbd5ed1

jpeg2000: Initialize code blocks structures in precincts to 0 · b44925ae

Michael Niedermayer authored Jul 01, 2013

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>

b44925ae

jpeg2000: Check that we have enough components for MCT · cf04af20

Michael Niedermayer authored Jul 01, 2013

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>

cf04af20

jpeg2000: Check that there is a SOT before SOD · b564784a

Michael Niedermayer authored Jul 01, 2013

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>

b564784a

jpeg2000: Remove unneeded returns · 2c3901b2
Michael Niedermayer authored Jul 01, 2013
```
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
2c3901b2

jpeg2000: Propagate error code from get_cox() · ef35d6db

Michael Niedermayer authored Jul 01, 2013

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

ef35d6db

jpeg2000: Check that nreslevels2decode has been initialized before use · 78962d3d

Michael Niedermayer authored Jul 01, 2013

Avoid buffer overread.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

78962d3d

jpeg2000: Drop unused and writeonly fields · 86a2602e
Michael Niedermayer authored Jul 01, 2013
```
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
86a2602e
jpeg2000: Correctly calculate sgnd · ac921338
Michael Niedermayer authored Jul 01, 2013
```
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
ac921338

jpeg2000: check len before parsing header · fd54dd02

Michael Niedermayer authored Jul 01, 2013

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>

fd54dd02

jpeg2000: Check component number in get_coc() and get_qcc() · eae63e3c

Michael Niedermayer authored Jul 01, 2013

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>

eae63e3c

jpeg2000: Check zero bit-plane validity · 17e5d614
Michael Niedermayer authored Jul 01, 2013
```
Prevent integer overflows.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
17e5d614

jpeg2000: Validate block lengthinc · 7e201d57

Luca Barbato authored Jul 01, 2013

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>

7e201d57

jpeg2000: Validate SIZ parsing · 278a923c

Michael Niedermayer authored Jul 01, 2013

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

278a923c

jpeg2000: Validate SOT parsing · d3cb302b
Michael Niedermayer authored Jul 01, 2013
```
Avoid some overreads.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
d3cb302b

jpeg2000: Use bytestream2 · 1a3598aa

Michael Niedermayer authored Jul 01, 2013

Prevent a number of overreads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

1a3598aa

jpeg2000: Clean up return paths and error messages · 5efadcb8
Luca Barbato authored Jul 01, 2013
```
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
5efadcb8
jpeg2000: Define the maximum decomposition levels · be327100
Luca Barbato authored Jul 01, 2013
```
And define the resolution levels according.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
```
be327100

jpeg2000: Check code-block size · fbcc03db

Michael Niedermayer authored Jul 01, 2013

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>

fbcc03db

jpeg2000: Validate resolution levels · 5650e331

Luca Barbato authored Jul 01, 2013

There are 32 maximum decomposition levels, thus 33 resolution levels.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

5650e331

oggdec: do not fall back on binary search in the generic code. · 8ad3267c

Anton Khirnov authored Jun 28, 2013

Binary search is already attempted in the format-specific seek function,
so the fallback is only reached if binary search failed already.

8ad3267c

lls/x86: use 3-operator vaddpd in ADDPD_MEM · c8b920a9
Loren Merritt authored Jul 02, 2013
```
Fixes build with yasm-1.1
Signed-off-by: Anton Khirnov <anton@khirnov.net>
```
c8b920a9

01 Jul, 2013 5 commits

Revert "indeo5: reject negative motion vectors" · 8bd90399
Luca Barbato authored Jul 01, 2013
```
Negative motion vectors are possible.

This reverts commit 1194a410.
```
8bd90399

indeo: check for reference when inheriting mvs · b36e1893

Luca Barbato authored Jun 30, 2013

The same is done already for qdelta.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

b36e1893

indeo5: reject negative motion vectors · 1194a410
Luca Barbato authored Jun 30, 2013
```
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
```
1194a410
indeo: use proper error code · dd3754a4
Luca Barbato authored Jun 30, 2013

dd3754a4

indeo: Properly forward the error codes · 7388c0c5

Luca Barbato authored Jun 30, 2013

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

7388c0c5

30 Jun, 2013 3 commits
- x86: lpc: fix a segfault in av_evaluate_lls_sse2() · 1221bb62
  Loren Merritt authored Jun 30, 2013
  
  1221bb62
- mjpeg: Check the unescaped size for overflows · 6765ee7b
  Luca Barbato authored Jun 29, 2013
```
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
```
  6765ee7b
- mjpeg: Move code out of else branch · 7520d977
  Luca Barbato authored Jun 29, 2013
```
Simplify the control flow and spare some vertical space.
```
  7520d977
29 Jun, 2013 6 commits

avconv: Don't include colorspace.h · 7798a59d

Derek Buitenhuis authored Jun 29, 2013

The header is private, and avconv.c doesn't use it
for anything.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

7798a59d

wmapro: error out on impossible scale factor offsets · 02ec656a
Luca Barbato authored Jun 29, 2013
```
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
```
02ec656a

wmapro: check the min_samples_per_subframe · d4a217a4

Luca Barbato authored Jun 28, 2013

Must be at least WMAPRO_BLOCK_MIN_SIZE.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

d4a217a4

pictor: use the correct logging context · 183880cf
Luca Barbato authored Jun 29, 2013
```
Broken in 6d97484d
```
183880cf

lpc: use levinson for the first pass of multipass cholesky · c93ccf5a

Loren Merritt authored Jun 16, 2013

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>

c93ccf5a

x86: lpc: simd av_evaluate_lls · b545179f

Loren Merritt authored Jun 18, 2013

1.5x-1.8x faster on sandybridge
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

b545179f