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44 Commits

Author SHA1 Message Date
Andreas Rheinhardt
a247ac640d avcodec: Constify AVCodecs 
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 2021-04-27 10:43:15 -03:00
Michael Niedermayer
9cd1e939cf avcodec/dds: Use ff_set_dimensions() 
Fixes: signed integer overflow: 2082471995 * 36 cannot be represented in type 'int'
Fixes: 16025/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DDS_fuzzer-5136663778426880

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-08-11 19:13:21 +02:00
Michael Niedermayer
c49fa2a514 avcodec/dds: Fix runtime error: left shift of 145 by 24 places cannot be represented in type 'int' 
Fixes: 1891/clusterfuzz-testcase-minimized-6274417925554176

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-29 13:51:42 +02:00
Michael Niedermayer
afb4632cc3 avcodec/dds: Fix runtime error: left shift of 210 by 24 places cannot be represented in type 'int' 
Fixes: 1510/clusterfuzz-testcase-minimized-5826231746428928

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-13 01:40:43 +02:00
Michael Niedermayer
8a8335de03 avcodec/dds: Fix runtime error: left shift of 1 by 31 places cannot be represented in type 'int' 
Fixes: 1380/clusterfuzz-testcase-minimized-650122545122508

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-06 23:23:39 +02:00
Clément Bœsch
67e370ee52 lavc: fix usages of av_get_codec_tag_string() 2017-03-29 14:49:29 +02:00
Andreas Cadhalpun
90ebf3c428 dds: limit 4 bpp handling to AV_PIX_FMT_PAL8 
This fixes NULL pointer dereferencing for formats, where frame->data[1]
is not allocated.

The problem was introduced in commit
257fbc3af4.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2016-11-16 19:29:45 +01:00
Paul B Mahol
257fbc3af4 avcodec/dds: add support for 4bpp format 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-09-21 13:40:04 +02:00
Clément Bœsch
f36fcf7b6c Merge commit '4b2e69397b84d1c1a29ffae6e9f106f2c32b1869' 
* commit '4b2e69397b84d1c1a29ffae6e9f106f2c32b1869':
  dds: Add support for monochrome images

Merged-by: Clément Bœsch <clement@stupeflix.com>
 2016-06-21 12:29:46 +02:00
Derek Buitenhuis
d62984d8a0 Merge commit '22e49e6edead9c83696f20127988f659b952ce65' 
* commit '22e49e6edead9c83696f20127988f659b952ce65':
  dds: Simplify postprocessing check

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-08 23:50:09 +01:00
Derek Buitenhuis
6ebec1049e Merge commit '02538636261fdec9c70f4185b23147c636f269b4' 
* commit '02538636261fdec9c70f4185b23147c636f269b4':
  dds: Add support for alpha-only files

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-08 23:49:26 +01:00
Derek Buitenhuis
6c00703685 Merge commit '9a9fb710bcf4657e030467cfe2556cb0e2c01afc' 
* commit '9a9fb710bcf4657e030467cfe2556cb0e2c01afc':
  dds: Add support for rgb555 files

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-08 23:49:04 +01:00
Vittorio Giovara
4b2e69397b dds: Add support for monochrome images 2016-04-26 16:30:18 -04:00
Vittorio Giovara
6eb2505855 dds: Drop gray-alpha swapping 
The original sample was generated with invalid software.
 2016-04-26 16:30:04 -04:00
Carl Eugen Hoyos
139cbeb75e lavc/dds: Fix GRAY8A decoding. 
Fixes ticket #4667.
 2016-04-15 21:06:34 +02:00
Vittorio Giovara
22e49e6ede dds: Simplify postprocessing check 2016-04-06 12:13:50 -04:00
Vittorio Giovara
0253863626 dds: Add support for alpha-only files 
Due to how pixel format conversion is done, they behave the same way
as gray files.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2016-04-06 12:13:49 -04:00
Vittorio Giovara
9a9fb710bc dds: Add support for rgb555 files 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2016-04-06 12:13:47 -04:00
Ganesh Ajjanagadde
5979c740f5 lavc/dds: replace rint by lrint 
avoids float to int cast.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
 2015-12-26 20:29:22 -08:00
Andreas Cadhalpun
603ebab8d7 dds: disable palette flag for compressed dds 
Having both is not valid and can cause a NULL pointer dereference of
frame->data[1] later.

Reviewed-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-14 21:52:11 +01:00
Andreas Cadhalpun
0a8bff788b dds: disable palette flag for compressed images 
Having both is not valid and can cause a NULL pointer dereference of
frame->data[1] later.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-11-14 03:40:20 +01:00
Andreas Cadhalpun
7b2211bfc4 dds: add missing newline to log messages 
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-12 04:39:14 +01:00
Andreas Cadhalpun
29b1752861 dds: validate compressed source buffer size 
A too small buffer will cause segfaults somewhere below
decompress_texture_thread.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-12 04:39:14 +01:00
Andreas Cadhalpun
e6459c655e dds: validate source buffer size before copying 
If it is too small av_image_copy_plane segfaults.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-12 04:39:14 +01:00
Andreas Cadhalpun
edd0c1d78a dds: add missing newline to log messages 
Reviewed-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-11 21:49:51 +01:00
Andreas Cadhalpun
9a37d47644 dds: validate compressed source buffer size 
A too small buffer will cause segfaults somewhere below
decompress_texture_thread.

Reviewed-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-11 21:49:51 +01:00
Andreas Cadhalpun
1675809d2d dds: validate source buffer size before copying 
If it is too small av_image_copy_plane segfaults.

Reviewed-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-11 21:49:51 +01:00
Michael Niedermayer
444e9874a7 Merge commit 'def97856de6021965db86c25a732d78689bd6bb0' 
* commit 'def97856de6021965db86c25a732d78689bd6bb0':
  lavc: AV-prefix all codec capabilities

Conflicts:
	cmdutils.c
	ffmpeg.c
	ffplay.c
	libavcodec/8svx.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/adpcm.c
	libavcodec/alac.c
	libavcodec/atrac3plusdec.c
	libavcodec/bink.c
	libavcodec/dnxhddec.c
	libavcodec/dvdec.c
	libavcodec/dvenc.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/fic.c
	libavcodec/flacdec.c
	libavcodec/flacenc.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/hevc.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libvo-aacenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxdec.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec_float.c
	libavcodec/msmpeg4dec.c
	libavcodec/mxpegdec.c
	libavcodec/nvenc_h264.c
	libavcodec/nvenc_hevc.c
	libavcodec/pngdec.c
	libavcodec/qpeg.c
	libavcodec/ra288.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tiff.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/vp9.c
	libavcodec/wavpack.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 22:50:18 +02:00
Vittorio Giovara
def97856de lavc: AV-prefix all codec capabilities 
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Martin Storsjö
44f7df0c98 dds: Write the palette in the native endian form 
This fixes the palette on big endian, broken (or, differing from
little endian) since 57214b2f7.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2015-07-23 19:07:43 +03:00
Tom Butterworth
ebe8b5d947 dds: Fix the slice size computation 
A bug was introduced in 6b2b26e7af whereby when
frame height wasn't divisible by the number of threads, pixels would be omitted
from the bottom rows during decode.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2015-07-23 10:45:40 +02:00
Michael Niedermayer
157fa73992 Merge commit 'ebe8b5d947c41449c684f17c6826fe6bc46c0360' 
* commit 'ebe8b5d947c41449c684f17c6826fe6bc46c0360':
  dds: Fix the slice size computation

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-23 12:20:53 +02:00
Michael Niedermayer
eaf15bba03 Merge commit 'ea4d46e72945cba37feb7aa154eb970732f513e4' 
* commit 'ea4d46e72945cba37feb7aa154eb970732f513e4':
  dds: Fix enum declaration

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-22 17:14:24 +02:00
Michael Niedermayer
d08d8b61aa dds: Fix 32bpp bitmaps decoding 
Found-By: ami_stuff
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-22 13:35:44 +01:00
Vittorio Giovara
57214b2f7f dds: Fix palette decoding 
Red and blue channels were decoded in the wrong order.

Found-By: ami_stuff
 2015-07-22 13:35:44 +01:00
Vittorio Giovara
ea4d46e729 dds: Fix enum declaration 
Drop the global variables with anonymous enum type.
 2015-07-22 13:35:43 +01:00
Michael Niedermayer
8fe00dd18a Merge commit '6b2b26e7af3ede0abfb46eb5725c26d1083f50bc' 
* commit '6b2b26e7af3ede0abfb46eb5725c26d1083f50bc':
  dds: Decode using optimal slices sizes

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-21 20:35:59 +02:00
Luca Barbato
6b2b26e7af dds: Decode using optimal slices sizes 
Enjoy some cache locality and use less threads.
About the same speedup provided to HAP.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2015-07-21 12:14:25 +02:00
Michael Niedermayer
5c583b1419 avcodec/dds: Flip more R<->B cases 
Fixes Ticket4665

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-20 00:03:11 +02:00
Michael Niedermayer
36a87c2dc7 avcodec/dds: fix paletted files 
Fixes Ticket4664

The changed fate tests lack red/blue shades and thus look correct
either way

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-19 23:26:59 +02:00
Luca Barbato
4d55484391 dds: Fix palette mode on big endian 
Found-By: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-06-24 14:45:16 +01:00
Michael Niedermayer
21d2e3d602 avcodec/dds: Fix palettes on big endian 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-06-22 23:59:28 +02:00
Michael Niedermayer
ff68b83968 Merge commit '5c018ee18895f88e9e1d2174059dcdd48bf872d2' 
* commit '5c018ee18895f88e9e1d2174059dcdd48bf872d2':
  DirectDraw Surface image decoder

Conflicts:
	Changelog
	configure
	doc/general.texi
	libavcodec/Makefile
	libavcodec/version.h
	tests/fate/image.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-06-22 23:34:56 +02:00
Vittorio Giovara
5c018ee188 DirectDraw Surface image decoder 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-06-22 15:23:08 +01:00