f62be777ee
support decoding of files that contain the number
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of vector coded coefficients in their bitstream
fixes issue 2536
Originally committed as revision 26388 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-16 16:39:53 +00:00
a0f593d00d
Values >4 for lowres corrupt output.
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Originally committed as revision 26386 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-16 12:45:59 +00:00
05503cee00
Since lowres == crop for bmp, remove it to avoid confusion.
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Originally committed as revision 26384 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-16 12:42:43 +00:00
1b3e43e4fd
Fix overflow in pred16x16_plane x86 simd code. Fixes issue 2547.
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Originally committed as revision 26381 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 22:00:44 +00:00
b9af15402d
Remove evil timers that snuck their way into r26375.
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Originally committed as revision 26377 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 18:14:36 +00:00
fb2734c8a6
Fix r26375 on non-x86.
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Originally committed as revision 26376 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 18:13:40 +00:00
f14bdd8e75
H.264: Partially inline CABAC residual decoding
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Improves CABAC performance about ~1.2%.
Trick originates from x264 and has also been used in ffvp8. It's useful because
coded block flags are usually zero, so it helps to have the early termination
inlined into the main function.
Originally committed as revision 26375 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 17:52:48 +00:00
925aa96915
Second hunk from secrity fix from google.
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The hunk is not fully understood but it just makes a check tighter so its
safer for us to apply until it is fully understood.
Might fix issue 2550 (and Chrome issue 68115 and unknown CERT issues).
Our bugtracker issue though should stay open until this has been fully
investiagted
Patch by Frank Barchard, fbarchard at google
Originally committed as revision 26368 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 17:10:49 +00:00
f734671925
do not read over the end of the packet
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fixes issue 2543
Originally committed as revision 26367 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 16:39:52 +00:00
13184036a6
Check rangebits to avoid a possible crash.
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Fixes issue 2548 (and Chrome issue 68115 and unknown CERT issues).
Patch by Frank Barchard, fbarchard at google
Originally committed as revision 26365 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 16:19:06 +00:00
03ec42aa1c
Change some band size calculations in Bink decoder to use width in blocks
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instead of real width, this fixes decoding of some Bink files with odd width.
Originally committed as revision 26364 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 13:29:14 +00:00
b0c8b8a69d
Lagarith: fix decoding of one-coloured frames by reading the per-plane
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color value instead of always taking 0 (resulting in green frames).
Fixes issue issue2531.
Originally committed as revision 26363 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 12:44:48 +00:00
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
2011-01-15 10:18:38 +00:00
0db5d2b09e
cosmetics: spacing, line wrap, and remove unneeded braces
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Originally committed as revision 26359 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:59:31 +00:00
964f2cf2a0
Process all EXP_REUSE blocks at once in exponent_min().
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43% faster in function encode_exponents().
Originally committed as revision 26358 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:59:21 +00:00
7d87d56ff8
Take advantage of per-channel exponent and exponent strategy layout to
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simplify and speed up encode_exponents().
8% faster in function.
Originally committed as revision 26357 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:59:15 +00:00
5bff8590f3
Simplify compute_exp_strategy() by passing a pointer to all exponents and
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exponent strategies for a single channel to compute_exp_strategy_ch().
This allows for removal of the temporary pointer arrays.
Originally committed as revision 26356 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:59:10 +00:00
4b90c35d74
Use a local variable in the inner loop of group_exponents() to simplify the
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code.
Originally committed as revision 26355 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:59:04 +00:00
a281c6509f
cosmetics: remove unneeded braces
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Originally committed as revision 26354 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:58:59 +00:00
5fc2e0075d
cosmetics: rename block_num to blk for variable name consistency
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Originally committed as revision 26353 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:58:55 +00:00
0429e4a6ca
Move exp_strategy from AC3Block to AC3EncodeContext in order to arrange by
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channel first, then by block.
Originally committed as revision 26352 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:58:50 +00:00
7cc4be58b4
Rearrange exponent buffer to group all blocks for a single channel together.
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This will allow for faster and simpler processing of all blocks at once.
Originally committed as revision 26351 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:58:45 +00:00
2a1f431d38
H.264/SVQ3: make chroma DC work the same way as luma DC
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No speed improvement, but necessary for some future stuff.
Also opens up the possibility of asm chroma dc idct/dequant.
Originally committed as revision 26349 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 01:10:46 +00:00
290fabc684
Port SVQ3 to use the new mb_luma_dc method of storing luma DC coefficients.
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Doesn't help speed as there isn't an asm implementation yet, but consistency
is a good thing.
Originally committed as revision 26348 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-15 00:41:18 +00:00
3cdf69eefa
also support decoding of AVPackets with multiple wma packets
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fixes issue 2539
Originally committed as revision 26346 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 23:58:55 +00:00
65344775b8
H.264: Remove useless arg to chroma_dc_dequant_idct_c
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Originally committed as revision 26345 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 23:46:55 +00:00
ec3233a855
Fix ff_pw_3 alignment.
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Originally committed as revision 26344 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 23:26:34 +00:00
2e18660115
Fix SVQ3
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Regression in r26336-7.
Originally committed as revision 26341 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 22:23:42 +00:00
bd11c7a1a8
Remove outdated comment in h264dsp.h
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Since we no longer have non-transposed scantables, the problem it warns about
no longer exists.
Originally committed as revision 26339 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 21:48:33 +00:00
0d1d01cf70
Reindent after r26337.
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Originally committed as revision 26338 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 21:36:45 +00:00
5657d14094
H.264: switch to x264-style tracking of luma/chroma DC NNZ
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Useful so that we don't have to run the hierarchical DC iDCT if there aren't
any coefficients. Opens up some future opportunities for optimization as well.
Originally committed as revision 26337 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 21:36:16 +00:00
19fb234e4a
H.264: split luma dc idct out and implement MMX/SSE2 versions
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About 2.5x the speed.
NOTE: the way that the asm code handles large qmuls is a bit suboptimal.
If x264-style dequant was used (separate shift and qmul values), it might
be possible to get some extra speed.
Originally committed as revision 26336 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 21:34:25 +00:00
ca32f7f208
H.264: eliminate non-transposed scantable support.
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It was an ugly hack to begin with and didn't give any performance.
NOTE: this patch opens up some future simplifications to be made (such as
removing some of the scantables from H264Context) but doesn't take advantage
of them yet.
Originally committed as revision 26329 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 19:04:59 +00:00
75e4efd2a7
add support for blocksize 64
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fixes issue 2537 and 2538
Originally committed as revision 26328 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-14 16:36:57 +00:00
e83c716e16
don't complain about codec type/id mismatche for attachment streams
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Originally committed as revision 26316 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-12 00:33:22 +00:00
e048a9cab1
Do not crash for illegal sample size, fixes issue 2502.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26309 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-11 14:08:45 +00:00
09fffe9bd4
H.264: fix grayscale decoding with explicit wpred
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Originally committed as revision 26306 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 23:42:45 +00:00
8219782a6d
Do not stop decoding on pnm files with negative maxval.
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Originally committed as revision 26304 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 22:09:52 +00:00
c56e71309e
In gif encoder, fix uninitialized value, patch by Clément Bœsch, ubitux at gmail dot com
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Originally committed as revision 26303 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 21:14:54 +00:00
94e58e5770
perform height sanity check in mmvideo decoder
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Fixes issue2495
Original patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26300 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 12:23:03 +00:00
091bc6ca8c
mmvideo: remove some conditional statements by limiting range of half_horiz and half_vert parameters to [0,1]
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Originally committed as revision 26299 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 12:16:33 +00:00
c19a216af3
Handle ID3v1 tag while decoding mp[123] frames
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patch by Clément Bœsch (ubitux at gmail)
Originally committed as revision 26297 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 11:36:11 +00:00
2843502ea4
Check for invalid decode op-codes, fixes issue 2522.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26295 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 10:47:10 +00:00
8e37a1deb3
Check for vectable ID > 0, fixes issue 2508.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26294 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 10:36:14 +00:00
43c34675af
Check for invalid motion vector, fixes issue 2521.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26293 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 10:28:06 +00:00
ebc3488300
Check for invalid maxval in pgm decoder, fixes issue 2518.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26292 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-10 00:42:57 +00:00
39f4d32908
Fix reading over the end of the allocated buffer.
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Patch by Anssi Hannula, anssi d hannula a iki d fi
Originally committed as revision 26291 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-09 23:01:01 +00:00
b89f4fb190
Check for several overreads, fixes issue 2512.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26289 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-09 19:38:32 +00:00
a4db272a92
Return on negative soff sizes, fixes issue 2515.
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Patch by Daniel Kang, daniel.d.kang at gmail
Originally committed as revision 26288 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-09 19:29:39 +00:00
31561a98ae
Fix arm asm offsets for arm/mach-o
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Originally committed as revision 26287 to svn://svn.ffmpeg.org/ffmpeg/trunk
2011-01-09 15:23:00 +00:00
Sascha Sommer
Carl Eugen Hoyos
Ronald S. Bultje
Jason Garrett-Glaser
Frank Barchard
Kostya Shishkov
Reimar Döffinger
Daniel Kang
Justin Ruggles
Aurelien Jacobs
Clément Bœsch
Peter Ross
Anssi Hannula
Martin Storsjö