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43 Commits

Author SHA1 Message Date
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