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74 Commits

Author SHA1 Message Date
Diego Biurrun
c697c590fb lcl: Disentangle pointers to input data and decompression buffer 
This is cleaner and avoids a cast plus a related const qualifier warning.
 2014-08-03 01:29:43 -07:00
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
Anton Khirnov
14cf33e957 lcldec: return meaningful error codes. 2013-01-14 11:36:22 +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
594d4d5df3 lavc: add a wrapper for AVCodecContext.get_buffer(). 
It will be useful in the upcoming transition to refcounted AVFrames.
 2012-12-04 21:41:59 +01:00
Diego Biurrun
5bac2d0c30 avutil: Move memcpy_backptr() to mem.c 
The function is used elsewhere and does not belong with the LZO code.
 2012-10-25 11:36:57 +02:00
Diego Biurrun
e831b3b852 av_memcpy_backptr: Drop no longer necessary malloc padding 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2012-10-23 18:57:24 +01:00
Anton Khirnov
716d413c13 Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat 2012-10-08 07:13:26 +02:00
Anton Khirnov
36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +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
bd17a40a7e lcl: return negative error codes on decode_init() errors. 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-03-01 07:12:29 -08:00
Ronald S. Bultje
be129271ea lcl: error out if uncompressed input buffer is smaller than framesize. 
This prevents crashes when trying to read beyond the end of the buffer
while decoding frame data.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-02-24 07:28:57 -08:00
Ronald S. Bultje
01cb62aba2 lcl: don't overwrite input memory. 
If the PNG filter is enabled, a PNG-style filter will run over the
input buffer, writing into the buffer. Therefore, if no zlib compression
was used, ensure that we copy into a temporary buffer, otherwise we
overwrite user-provided input data.
 2012-02-23 10:31:46 -08:00
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
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
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
Diego Biurrun
b34aaed2cf Move #ifdef before zlib_decomp() up so it covers the Doxygen comments. 
Otherwise Doxygen gets confused and cannot map comments to functions.

Originally committed as revision 23988 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-02 12:41:07 +00:00
Diego Biurrun
ba87f0801d Remove explicit filename from Doxygen @file commands. 
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-20 14:45:34 +00:00
Stefano Sabatini
72415b2adb Define AVMediaType enum, and use it instead of enum CodecType, which 
is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-30 23:30:55 +00:00
Reimar Döffinger
4a49ab77c6 Remove unnecessary calls to avcodec_check_dimensions, the check is already 
done at a higher level.

Originally committed as revision 20229 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-10-13 20:13:28 +00:00
Reimar Döffinger
24dd21fa41 add #if CONFIG_ZLIB_DECODER around zlib_decomp function. 
Fixes compilation when zlib is not available.

Originally committed as revision 19069 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 19:51:21 +00:00
Reimar Döffinger
79183d3c3e mszh decompression: add a special case for an all-0 mask, i.e. 32 uncompressed 
bytes in a row.
About 15% faster mszh_decomp on an Atom N270 for
http://samples.mplayerhq.hu/V-codecs/mszh-zlib/avimzsh_sample.avi

Originally committed as revision 19068 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 18:17:33 +00:00
Reimar Döffinger
a7bfbe4e13 lcldec: ensure that the offset for av_memcpy_backptr is valid. 
Originally committed as revision 19067 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 17:44:35 +00:00
Reimar Döffinger
bbf306742c Fix memleak due to c->decomp_buf never being freed. 
Originally committed as revision 19064 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 11:47:52 +00:00
Reimar Döffinger
908425c758 Only call inflateEnd when we were actually using the zlib code. 
Originally committed as revision 19063 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 11:42:50 +00:00
Reimar Döffinger
4ad3df9da2 avctx->priv_data is initialized to 0, get rid of useless extra initialization. 
Originally committed as revision 19062 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 11:41:49 +00:00
Reimar Döffinger
7ffc844742 Merge variable declaration and initialization. 
Originally committed as revision 19061 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 11:35:20 +00:00
Reimar Döffinger
7c20421661 Use int-size types instead of char where it makes no difference. 
Originally committed as revision 19060 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 11:34:19 +00:00
Reimar Döffinger
7a15b25827 Take advantage of available input padding to optimize mszh_decomp 
Originally committed as revision 19059 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 11:32:03 +00:00
Reimar Döffinger
a5d2745d8e Change maskbit variable to contain (1 << maskbit) 
Originally committed as revision 19058 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:58:20 +00:00
Reimar Döffinger
e0b3af9059 Remove check that thanks to padding is no longer necessary. 
Originally committed as revision 19057 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:53:47 +00:00
Reimar Döffinger
0b99764459 100l, the compression field in lcl extradata must be interpreted as 
int8_t, not uint8_t to allow -1 for "no compression".
The original code worked, but only when char was signed.

Originally committed as revision 19056 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:50:54 +00:00
Reimar Döffinger
e4f141ad60 One more use for FFMIN. 
Originally committed as revision 19055 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:44:42 +00:00
Reimar Döffinger
0d48e6ec7f Pad the decompression buffer and use av_memcpy_backptr for the mszh decompression. 
Originally committed as revision 19054 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:42:26 +00:00
Reimar Döffinger
974ce78544 Mark srcptr as const in mszh_decomp 
Originally committed as revision 19053 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:38:17 +00:00
Reimar Döffinger
6065dcea37 Remove unnecessary put_bits/get_bits includes. 
Originally committed as revision 19052 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:37:05 +00:00
Reimar Döffinger
2bee59083d Use bytestream_get_le16 to simplify offset/count calculation for mszh decompression. 
Originally committed as revision 19051 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:35:39 +00:00
Reimar Döffinger
5a18221ba8 Remove useless & 0x1f 
Originally committed as revision 19050 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:31:37 +00:00
Reimar Döffinger
7b151a98b0 Document padding requirements of mszh_decomp srcptr buffer 
Originally committed as revision 19049 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:28:40 +00:00
Reimar Döffinger
5e5fe7dab5 Use srcptr_end variable to avoid having to update both srcptr and srclen. 
Originally committed as revision 19048 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:26:58 +00:00
Reimar Döffinger
dbc53ffc7c Change buffer size checks to avoid the undefined overflow case. 
Originally committed as revision 19047 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:23:38 +00:00
Reimar Döffinger
2fddb91e94 Simply use memcpy instead of AV_RN32/AV_WN32 combination. 
Originally committed as revision 19046 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:16:28 +00:00
Reimar Döffinger
661cb0d4a9 Fix decoding of multithread-encoded lcl files on big-endian. 
Originally committed as revision 19045 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:14:27 +00:00
Reimar Döffinger
ce22c7d075 Remove another useless () 
Originally committed as revision 19044 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:05:21 +00:00
Reimar Döffinger
21bf2f51d7 Correct calculation of compressed input length. 
Originally committed as revision 19043 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 10:01:26 +00:00
Reimar Döffinger
46adcc27a2 Add sanity check for mthread_inlen, avoids crashes due to invalid reads. 
Originally committed as revision 19042 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 09:59:46 +00:00
Reimar Döffinger
1207c84adb Use FFMIN 
Originally committed as revision 19041 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 09:57:42 +00:00
Reimar Döffinger
c2c0c1c023 Factor out zlib decompression code to avoid massive code duplication, 
particularly due to error checks.

Originally committed as revision 19040 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-31 09:51:46 +00:00