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46 Commits

Author SHA1 Message Date
Andreas Rheinhardt
e5fdc682cc avcodec/fic: Mark decoder as init-threadsafe 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-05-02 03:22:07 +02:00
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
Anton Khirnov
e15371061d lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 
They are not properly namespaced and not intended for public use.
 2021-01-01 14:14:57 +01:00
James Almer
9ea6d2149e avcodec/decode: add a flags parameter to ff_reget_buffer() 
Some decoders may not need a writable buffer in some specific cases, but only
a reference to the existing buffer with updated frame properties instead, for
the purpose of returning duplicate frames. For this, the
FF_REGET_BUFFER_FLAG_READONLY flag is added, which will prevent potential
allocations and buffer copies when they are not needed.

Signed-off-by: James Almer <jamrial@gmail.com>
 2019-09-04 10:07:12 -03:00
Michael Niedermayer
c7f95d2bd9 avcodec/fic: Check input size against minimal frame size 
Fixes: Timeout (22sec ->54ms)
Fixes: 14439/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5660988231122944

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-05-09 22:07:26 +02:00
Michael Niedermayer
db1c4acd02 avcodec/fic: Check that there is input left in fic_decode_block() 
Fixes: Timeout
Fixes: 12450/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5661984622641152

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-01-31 00:24:38 +01:00
Paul B Mahol
f89919d4fb avcodec/fic: use init_get_bits8() 2018-12-23 20:49:19 +01:00
Michael Niedermayer
30a7a81cdc avcodec/fic: Fail on invalid slice size/off 
Fixes: Timeout
Fixes: 11486/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5677133863583744

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-12-23 20:24:47 +01:00
Paul B Mahol
ae227fa1f2 avcodec/fic: change class name to more correct one 2018-09-08 20:25:47 +02:00
Michael Niedermayer
cb2f7ea96b avcodec/fic: Check available input space for cursor 
Fixes: out of array read
Fixes: 6546/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-6317064647081984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-05-17 02:23:06 +02:00
Michael Niedermayer
c6a11714c4 avcodec/fic: Avoid some magic numbers related to cursors 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-05-17 02:23:06 +02:00
Michael Niedermayer
0c9d5b015c avcodec/fic: Fixes signed integer overflow 
Fixes: runtime error: signed integer overflow: 1037142357 + 1227025305 cannot be represented in type 'int'
Fixes: 3024/clusterfuzz-testcase-minimized-5885660323905536

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-08-20 02:59:57 +02:00
Michael Niedermayer
a173f484b5 avcodec/fic: Fix multiple runtime error: signed integer overflow: 5793 * 419752 cannot be represented in type 'int' 
Fixes: 1669/clusterfuzz-testcase-minimized-5287529198649344

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-18 18:08:23 +02:00
Michael Niedermayer
548459080b avcodec/fic: Check coefficients 
Fixes: signed integer overflow: 1258291200 * 2 cannot be represented in type 'int'
Fixes: 1413/clusterfuzz-testcase-minimized-5923451770503168

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-09 00:42:20 +02:00
Michael Niedermayer
b20c71409b avcodec/fic: Fix multiple left shift of negative value -15 
Fixes: 1356/clusterfuzz-testcase-minimized-6008489086287872

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 12:11:43 +02:00
Ronald S. Bultje
73f863d751 fic: set pict_type/key_frame after (instead of during) slice decoding. 
This fixes a race condition that was already documented in the source
code, and is also reported by tsan in fate-fic-avi.
 2017-03-31 08:26:23 -04:00
Carl Eugen Hoyos
00ffbdfb68 lavc/fic: Do not warn about empty cursor. 
Fixes ticket #5174.
 2016-05-01 15:30:22 +02:00
Carl Eugen Hoyos
47a11ff457 lavc/fic: Be less verbose for invisible cursor outside of video. 2016-05-01 15:28:59 +02:00
Carl Eugen Hoyos
db7d0d6e7c lavc/fic: Cosmetics, fix a typo. 
Found by Moritz Barsnick
 2016-04-18 00:18:54 +02:00
Clément Bœsch
fb99ef0bd3 avcodec: use AV_OPT_TYPE_BOOL in a bunch of places 2015-12-04 15:37:05 +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
Michael Niedermayer
d277b05c51 avcodec/fic: Add skip_cursor AVOption 
Previous version reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-06-19 13:57:36 +02:00
Paul B Mahol
392d975efe avcodec: fix clobbered ff_get_buffer() 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2015-02-10 14:20:32 +00:00
Carl Eugen Hoyos
d457478fb0 Silence warnings for fic files with zero-sized cursors. 
Fixes ticket #4072.
 2014-11-03 00:43:08 +01:00
Michael Niedermayer
1b5ec6a0c3 avcodec/fic: Check if a frame is available before using it 
Fixes null pointer dereference
Fixes: ficvf.avi
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-22 02:22:31 +02:00
Michael Niedermayer
23cd5cb18f avcodec/fic: avoid 2 additions per idct row 
before:
5225 decicycles in IDCT, 32756 runs, 12 skips

after:
5057 decicycles in IDCT, 32765 runs, 3 skips

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-23 22:34:31 +02:00
Derek Buitenhuis
14da7f9eb7 fic: Support rendering cursors 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-23 13:31:22 -04:00
Derek Buitenhuis
d7eb8f9033 fic: Make warning message more accurate 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-23 17:53:00 +01:00
Derek Buitenhuis
7596fc3d4b fic: Remove redundant clips 
The equations can't overflow or underflow anyway.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-23 12:40:39 -04:00
Derek Buitenhuis
e299cb2cd3 fic: Simplify alpha blending 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-22 17:51:43 -04:00
Derek Buitenhuis
6d149d2818 fic: Use proper quantization matrix index 
The matrices are not zigzagged.

Fixes artefacting.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-22 16:22:08 -04:00
Derek Buitenhuis
9155c595f1 fic: Support rendering cursors 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-22 21:20:23 +01:00
Derek Buitenhuis
40b331e1f4 fic: Use proper quantization matrix index 
The matrices are not zigzagged.

Fixes artefacting.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-22 21:20:23 +01:00
Michael Niedermayer
6f243b17c5 avcodec/fic: Fix return value check 
Fixes part of Ticket3466
Found-by: Andrey_Karpov / PVS-Studio
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-21 14:56:17 -04:00
Michael Niedermayer
144f7a561d avcodec/fic: clear slice_data 
Fixes artifacts
Fixes use of freed memory

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-21 14:56:17 -04:00
Michael Niedermayer
f34d3173fc avcodec/fic: fix slice checks 
fix integer overflows

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-21 14:56:17 -04:00
Michael Niedermayer
451c78740a Merge commit '93e15a323871613fd26f1f1e317029a50b5b24ca' 
* commit '93e15a323871613fd26f1f1e317029a50b5b24ca':
  fic: use correct IDCT

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-21 20:20:39 +02:00
Kostya Shishkov
93e15a3238 fic: use correct IDCT 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-04-21 12:37:54 -04:00
Michael Niedermayer
230db1426d avcodec/fic: Fix return value check 
Fixes part of Ticket3466
Found-by: Andrey_Karpov / PVS-Studio
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-16 02:32:37 +02:00
Michael Niedermayer
6eb08783a9 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  fic: Properly handle skip frames

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-03-08 00:21:22 +01:00
Derek Buitenhuis
f87a6e500b fic: Properly handle skip frames 
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-03-07 14:54:33 +00:00
Michael Niedermayer
1db8bc5648 avcodec/fic: clear slice_data 
Fixes artifacts
Fixes use of freed memory

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-15 17:19:59 +01:00
Michael Niedermayer
d46ef40129 avcodec/fic: fix slice checks 
fix integer overflows

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-15 17:19:32 +01:00
Michael Niedermayer
0c4bf87b29 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  Mirillis FIC video decoder

Conflicts:
	Changelog
	configure
	libavcodec/Makefile
	libavcodec/avcodec.h
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-02-08 19:02:46 +01:00
Kostya Shishkov
cde7df25ef Mirillis FIC video decoder 
Does not contain cursor rendering yet.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2014-02-08 15:04:13 +00:00