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54 Commits

Author SHA1 Message Date
Vittorio Giovara
1e76345432 png: improve signature check 
Return proper error code, print an error message and add missing
parentheses.
 2015-01-14 17:10:19 +01:00
Vittorio Giovara
e64f0bf2d2 png: support reading gray+alpha at 16 bits 2014-08-04 12:57:38 +01:00
Vittorio Giovara
2257165bff png: disable broken MMX/SIMD code for bpp <= 2 
The decoder was producing different results when ASM was disabled.
Based on a long debug session with Kostya.
 2014-08-04 12:57:38 +01:00
Vittorio Giovara
e96c3b81ca avutil: rename AV_PIX_FMT_Y400A to AV_PIX_FMT_YA8 
The rationale is that you have a packed format in form
<greyscale sample> <alpha sample> <greyscale sample> <alpha sample>
and shortening greyscale to 'G' might make one thing about Greenscale instead.
An alias pixel format and color space name are provided for compatibility.
 2014-08-04 12:55:08 +01:00
Vittorio Giovara
92a36a6b33 pngdec: correctly indent macros 2014-08-01 13:07:53 +01:00
Vittorio Giovara
c598b569fb png: K&R formatting cosmetics 2014-03-16 23:29:50 +01:00
Diego Biurrun
b2bed9325d cosmetics: Group .name and .long_name together in codec/format declarations 2013-10-03 23:32:01 +02:00
Martin Storsjö
a81cad8f86 pngdec: Stop trying to decode once inflate returns Z_STREAM_END 
If the input buffer contains more data after the deflate stream,
the loop previously left running infinitely, with inflate returning
Z_STREAM_END.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-09-29 20:01:03 +03:00
Diego Biurrun
2832ea26f3 Remove commented-out debug #define cruft 2013-05-16 00:23:30 +02:00
Anton Khirnov
759001c534 lavc decoders: work with refcounted frames. 2013-03-08 07:38:30 +01:00
Anton Khirnov
9221c0af77 pngdec: cosmetics, reformat. 
Also remove a commented out line.
 2013-01-26 13:02:19 +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
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
Ronald S. Bultje
d2205d6543 png: check bit depth for PAL8/Y400A pixel formats. 
Wrong bit depth can lead to invalid rowsize values, which crashes the
decoder further down.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-05-04 16:06:47 -07:00
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
4c25269ced png: convert to bytestream2 API. 
Protects against overreads in the input buffer.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2012-03-08 11:17:25 -08:00
Paul B Mahol
08630d25a2 png: make .long_name more descriptive 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2012-02-21 15:47:05 +01:00
Ronald S. Bultje
e92003514d png: move DSP functions to their own DSP context. 2012-01-29 08:11:18 -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
Mans Rullgard
e23a05ab06 Fix incorrect max_lowres values 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-07-20 10:19:36 +01:00
Mans Rullgard
e65ab9d94f Remove unused variables 2011-06-02 20:06:00 +01:00
Stefano Sabatini
975a1447f7 Replace deprecated FF_*_TYPE symbols with AV_PICTURE_TYPE_*. 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2011-05-02 12:18:44 +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
Reinhard Tartler
737eb5976f Merge libavcore into libavutil 
It is pretty hopeless that other considerable projects will adopt
libavutil alone in other projects. Projects that need small footprint
are better off with more specialized libraries such as gnulib or rather
just copy the necessary parts that they need. With this in mind, nobody
is helped by having libavutil and libavcore split. In order to ease
maintenance inside and around FFmpeg and to reduce confusion where to
put common code, avcore's functionality is merged (back) to avutil.

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
 2011-02-15 16:18:21 +01:00
Luca Barbato
dfd2a005eb Replace dprintf with av_dlog 
dprintf clashes with POSIX.1-2008
 2011-01-29 23:55:37 +01:00
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
Stefano Sabatini
e16f217ceb Use new imgutils.h API names, fix deprecation warnings. 
Originally committed as revision 25058 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-09-07 19:15:29 +00:00
Stefano Sabatini
6ce9b4310c Remove use of the deprecated function avcodec_check_dimensions(), use 
av_check_image_size() instead.

Originally committed as revision 24711 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-06 09:37:04 +00:00
Måns Rullgård
8fc0162ac4 Add av_ prefix to bswap macros 
Originally committed as revision 24170 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-10 22:12:30 +00:00
Carl Eugen Hoyos
0fd0ef7947 Add new decoder property max_lowres and do not init decoder if requested value is higher. 
Originally committed as revision 24098 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-07 21:23:36 +00:00
Andreas Öman
67d96fb42d pngdec: Add support for PIX_FMT_Y400A 
Originally committed as revision 22882 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-14 20:15:50 +00:00
Jean-Daniel Dupas
cc947f04cc Replace all occurences of PKT_FLAG_KEY with AV_PKT_FLAG_KEY. 
Patch by Jean-Daniel Dupas, devlists shadowlab org

Originally committed as revision 22744 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-31 12:29:58 +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
Jai Menon
de3553b078 pngdec.c : release allocated buffers. 
Originally committed as revision 20680 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-12-01 11:38:37 +00:00
Diego Biurrun
8b44de14d1 Change av_log() calls surrounded by '#ifdef DEBUG' into dprintf macros. 
Originally committed as revision 19550 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-30 21:00:08 +00:00
Kostya Shishkov
f3ac96e4d8 Support RGB48 PNG decoding 
Originally committed as revision 19301 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-30 03:37:20 +00:00
Baptiste Coudurier
d0a7936710 png decoder use get_buffer, set CODEC_CAP_DR1 
Originally committed as revision 19099 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-06-05 08:32:41 +00:00
Vitor Sessak
09d1208cdb Fix unaligned dsputil call. 
Should fix FATE corepng test on Solaris/Sparc.

Originally committed as revision 18930 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-05-24 12:44:54 +00:00
Thilo Borgmann
ee30cdabad Add support to CorePNG P-frames. 
Patch by Thilo Borgmann thilo DOT borgmann A googlemail com.

Originally committed as revision 18421 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-10 17:16:19 +00:00
Thilo Borgmann
7a00bbad21 Implement avcodec_decode_video2(), _audio3() and _subtitle2() which takes an 
AVPacket argument rather than a const uint8_t *buf + int buf_size. This allows
passing of packet-specific flags from demuxer to decoder, such as the keyframe
flag, which appears necessary to playback corePNG P-frames.

Patch by Thilo Borgmann thilo.borgmann googlemail com, see also the thread
"Google Summer of Code participation" on the mailinglist.

Originally committed as revision 18351 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-07 15:59:50 +00:00
Diego Biurrun
406792e7b0 cosmetics: Remove pointless period after copyright statement non-sentences. 
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-19 15:46:40 +00:00
avcoder
6413d91d08 Remove useless casts. 
Patch by avcoder ffmpeg at gmail d0t com

Originally committed as revision 14154 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-10 11:52:51 +00:00
Stefano Sabatini
fe4bf37455 Make AVCodec long_names definition conditional depending on CONFIG_SMALL. 
Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-12 21:50:13 +00:00
Stefano Sabatini
bcdb2378f7 Add long names to some AVCodec declarations. 
patch by Stefano Sabatini, stefano.sabatini-lala poste it

Originally committed as revision 13022 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-04-29 21:31:21 +00:00
Zuxy Meng
98a6fff98c Apply 'cold' attribute to init/uninit functions in libavcodec 
Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-21 03:11:20 +00:00
Loren Merritt
042e0adda9 decode mng color decorrelation 
Originally committed as revision 12228 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-26 10:21:33 +00:00
Loren Merritt
bd58e7f730 remove a memcpy 
Originally committed as revision 12193 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-25 05:46:53 +00:00
Loren Merritt
4a9ca0a279 simd and unroll png_filter_row 
cycles per 1000 pixels on core2:
left: 9211->5170
top: 9283->2138
avg: 12215->7611
paeth: 64024->17360
overall rgb png decoding speed: +45%
overall greyscale png decoding speed: +6%

Originally committed as revision 12164 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-21 07:10:46 +00:00