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33 Commits

Author SHA1 Message Date
Diego Biurrun
0d439fbede dsputil: Split off HuffYUV decoding bits into their own context 
Also shorten HuffYUV context member names to avoid clutter.
 2014-05-27 08:52:34 -07:00
Diego Biurrun
4f4840377f lagarith: Fix typo in printf format string 
libavcodec/lagarith.c:671:16: warning: '#' flag used with ‘%u’ gnu_printf format [-Wformat]
 2014-03-22 18:36:33 +01:00
Diego Biurrun
cc8163e1a3 avcodec: more correct printf specifiers 2014-03-22 14:08:20 +01:00
Anton Khirnov
4c3e1956ee lagarith: reallocate rgb_planes when needed 
Fixes invalid writes on pixel format changes.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
 2014-02-04 22:00:27 +01:00
Kostya Shishkov
2f97094608 lagarith: do not call simd functions on unaligned lines 
They end up overwriting past the line end.

Partially based on a patch by Michael Niedermayer <michaelni@gmx.at>

Bug-Id: vlc/9700
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-01-06 08:19:29 +01:00
Diego Biurrun
b2bed9325d cosmetics: Group .name and .long_name together in codec/format declarations 2013-10-03 23:32:01 +02:00
Anton Khirnov
759001c534 lavc decoders: work with refcounted frames. 2013-03-08 07:38:30 +01:00
Diego Biurrun
511cf612ac miscellaneous typo fixes 2012-12-21 00:18:34 +01:00
Anton Khirnov
df9b956751 lavc: fix decode_frame() third parameter semantics for video decoders 
It's got_frame, not data size
 2012-12-04 21:45:36 +01:00
Anton Khirnov
716d413c13 Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat 2012-10-08 07:13:26 +02:00
Michael Niedermayer
b631e4ed64 lagarith: check count before writing zeros. 
Fixes CVE-2012-2793

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2012-09-29 09:28:32 +02:00
Hendrik Leppkes
f9150c8ac0 lagarith: frame multithreading 
About 2x speedup going from 1 to 2 threads.
1.7s to 0.85s on foreman CIF.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2012-08-09 10:50:27 +02:00
Anton Khirnov
36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +02:00
Ronald S. Bultje
7191e1c490 lagarith: fix color plane inversion for YUY2 output. 2012-08-03 11:09:17 -07:00
Ronald S. Bultje
98d0d19208 lagarith: pad RGB buffer by 1 byte. 
For left HFYU prediction, we predict from the buffer buf+1 using 8- or
16-byte reads. This means that aligning the buffer by 16 bytes is in
itself not sufficient, because if the width itself is 16- or 8-byte
aligned, the buffer will not be padded, and thus a read of size 16 at
buf+1 will overflow boundaries at the right edge. Padding the buffer by
1 byte is sufficient to not overflow its boundaries.

Fixes bug 342.
 2012-08-03 11:09:17 -07:00
Kostya Shishkov
464e9ab011 lagarith: add YUY2 decoding support 
Unlike other variants, for YUY2 we need to use different prediction:
* on line 0 for luma we should left predict starting from the second pixel
* on line 1 we should left predict first 4 pixels for luma and 2 for chroma
* median prediction employed here is taken directly from HuffYUV
 2012-05-08 07:24:31 +02:00
Carl Eugen Hoyos
58637a0b24 Support decoding unaligned rgb24 lagarith. 
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
 2012-05-08 07:23:44 +02:00
Kostya Shishkov
1fdb5649d9 lagarith: make offset array type unsigned 
This is logical and also fixes checking for the fourth plane offset.
 2012-05-06 09:32:08 +02:00
Martin Storsjö
00c3b67b8a cosmetics: Align codec declarations 
Also break some long lines, remove codec function placeholder comments
and add spaces in sample/pixel format lists.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-04-06 22:37:38 +03:00
Ronald S. Bultje
0a82f5275f lagarith: fix buffer overreads. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-03-28 07:06:47 -07:00
Martin Storsjö
e9ca85e714 lagarith: Add ff_ prefix to lag_rac_init 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-02-15 22:06:49 +02:00
Martin Storsjö
9cf0841ef3 dsputil: Add ff_ prefix to the dsputil*_init* functions 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-02-15 22:06:34 +02:00
Thad Ward
7af507ea99 lagarith: add decode support for arith rgb24 mode 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2011-12-29 07:37:33 +01:00
Kostya Shishkov
ffc638c283 lagarith: add some RGBA decoding support 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2011-11-16 10:49:51 +02:00
Nathan Caldwell
39616fc307 lagarith: Add correct line prediction for RGB 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2011-11-16 10:46:30 +02:00
Anton Khirnov
ec6402b7c5 lavc: use designated initialisers for all codecs. 
It's more readable and less prone to breakage.
 2011-07-29 08:42:34 +02:00
Diego Biurrun
adbfc605f6 doxygen: Consistently use '@' instead of '\' for Doxygen markup. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-06-24 00:37:49 +02:00
Diego Biurrun
f25a2ece76 Drop explicit filenames from @file Doxygen tags. 
The filename is unnecessary and brittle across file renames.
 2011-06-05 16:01:00 +02:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Anton Khirnov
b2ed95ec48 Replace remaining occurrences of CODEC_TYPE_* with AVMEDIA_TYPE* 
Tested to compile with lavc major bump.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-02-03 13:37:09 +00:00
Diego Elio Pettenò
d36beb3f69 Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf. 
None of these symbols should be accessed directly, so declare them as
hidden.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-26 16:08:45 +00:00
Reimar Döffinger
b0c8b8a69d Lagarith: fix decoding of one-coloured frames by reading the per-plane 
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
Carl Eugen Hoyos
d267b339e4 Lagarith decoder by Nathan Caldwell, saintdev at gmail 
Originally committed as revision 26270 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2011-01-08 21:22:15 +00:00