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147 Commits

Author SHA1 Message Date
Michael Niedermayer
45a306e4c4 avcodec/dvbsubdec: Use ff_set_dimensions() 
Fixes: signed integer overflow: 65313 * 65313 cannot be represented in type 'int'
Fixes: 15740/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DVBSUB_fuzzer-5641749164195840

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>
(cherry picked from commit 5941b7f615b0c0cab0d8f8613b918de75d3c1222)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-12-02 19:41:48 +01:00
Michael Niedermayer
f8cb091b6e avcodec/dvbsubdec: Check object position 
Reference: ETSI EN 300 743 V1.2.1  7.2.2 Region composition segment

Fixes: Timeout
Fixes: 13325/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DVBSUB_fuzzer-5143979392237568

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a8c5ae451184e879fc8ff1333c6f26f9542c8ebf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2019-12-02 19:41:47 +01:00
Michael Niedermayer
680157adb2 avcodec/dvbsubdec: Check entry_id 
Fixes: randomly writing over the array end
Fixes: 1473/clusterfuzz-testcase-minimized-5768907824562176

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8a69f2602fea04b7ebae2db16f2581e8ff5ee0cd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-20 03:41:33 +02:00
Michael Niedermayer
e7d36d262e avcodec/dvbsubdec: check region dimensions 
Fixes: 1408/clusterfuzz-testcase-minimized-6529985844084736
Fixes: integer overflow

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0075d9eced22839fa4f7a6eaa02155803ccae3e6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-20 03:41:33 +02:00
Andreas Cadhalpun
2260c0776a dvbsubdec: fix division by zero in compute_default_clut 
This problem was introduced in commit
4b90dcb8493552c17a811c8b1e6538dae4061f9d.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit c82b8ef0e4f226423ddd644bfe37e6a15d070924)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2016-11-27 00:46:34 +01:00
Ronald S. Bultje
6471040f56 FF_OPT_TYPE_* -> AV_OPT_TYPE_*. 2015-08-18 11:48:49 -04:00
Michael Niedermayer
d21ab8e411 avcodec/dvbsubdec: Print field lens in case they are too lerge 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-08-13 01:50:08 +02:00
Carl Eugen Hoyos
daf2c35f52 lavc: Remove newline from avpriv_request_sample() calls. 2015-08-11 22:50:45 +02:00
Michael Niedermayer
e5774f28d1 avcodec/dvbsubdec: Do not stop decoding at a invalid depth 
This corrects parsing the later elements

Fixes Ticket4754

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-08-05 00:16:43 +02:00
Carl Eugen Hoyos
087c0a0a93 lavc/dvbsub: Do not fail on clut depth 0. 
Fixes ticket #4752.
 2015-08-04 15:01:22 +02:00
Michael Niedermayer
3f87a17063 avcodec/dvbsubdec: Allow selecting the substream, or all substreams 
Fixes Ticket 2161

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-08-04 14:24:13 +02:00
Michael Niedermayer
1fc20af6af avcodec/dvbsubdec: Implement display definition segment fallback from ETSI EN 300 743 V1.3.1 
Fixes: subtitles.ts
Fixes: Ticket679

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-29 18:02:07 +02:00
Michael Niedermayer
d41dceb14e avcodec/dvbsubdec: Add option to select when to computer clut (always/never/"if needed") 
Reviewed-by: Anshul <anshul.ffmpeg@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 00:02:48 +02:00
Michael Niedermayer
4b90dcb849 avcodec/dvbsubdec: Compute default CLUT based on bitmap analysis 
Fixes displaying subtitles before any CLUT has been received
Fixes Ticket153

This will of course not display these initial subtitles in the correct
color (as that is not known at that point) but they should look clean
and not corrupted

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-26 14:39:55 +02:00
banastasov
debf4d6e67 avcodec/dvbsubdec: Fix buf_size check in dvbsub_parse_display_definition_segment() 
Fixes Ticket4326

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-30 04:29:58 +02:00
Michael Niedermayer
9f0b898e82 avcodec/dvbsubdec: Clear w/h/size on region buffer allocation failure 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-14 23:25:39 +02:00
Michael Niedermayer
e06dde52d7 avcodec/dvbsubdec: Do not return a value from a function returning void 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-04-26 13:47:12 +02:00
Michael Niedermayer
8f7b022c8c Merge commit '6a85dfc830f51f1f5c2d36d4182d265c1ea3ba25' 
* commit '6a85dfc830f51f1f5c2d36d4182d265c1ea3ba25':
  lavc: Replace av_dlog and tprintf with internal macros

Conflicts:
	libavcodec/aacdec.c
	libavcodec/audio_frame_queue.c
	libavcodec/bitstream.c
	libavcodec/dcadec.c
	libavcodec/dnxhddec.c
	libavcodec/dvbsubdec.c
	libavcodec/dvdec.c
	libavcodec/dvdsubdec.c
	libavcodec/get_bits.h
	libavcodec/gifdec.c
	libavcodec/h264.h
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_refs.c
	libavcodec/imc.c
	libavcodec/interplayvideo.c
	libavcodec/jpeglsdec.c
	libavcodec/libopencore-amr.c
	libavcodec/mjpegdec.c
	libavcodec/mpeg12dec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_parser.c
	libavcodec/pngdec.c
	libavcodec/ratecontrol.c
	libavcodec/rv10.c
	libavcodec/svq1dec.c
	libavcodec/vqavideo.c
	libavcodec/wmadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-04-20 04:10:10 +02:00
Vittorio Giovara
6a85dfc830 lavc: Replace av_dlog and tprintf with internal macros 2015-04-19 12:41:59 +01:00
Michael Niedermayer
c5b6b711b2 Merge commit '607ad990d31e6be52980970e5ce8cd25ab3de812' 
* commit '607ad990d31e6be52980970e5ce8cd25ab3de812':
  dvbsubdec: check memory allocations and propagate errors

Conflicts:
	libavcodec/dvbsubdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-27 20:25:40 +01:00
Vittorio Giovara
607ad990d3 dvbsubdec: check memory allocations and propagate errors 2015-01-27 15:26:37 +00:00
Michael Niedermayer
8de0990e9f avcodec/dvbsubdec: Check get_region() return value 
Fixes null pointer dereference with DEBUG enabled

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-17 16:33:02 +01:00
Michael Niedermayer
1bf747ae84 avcodec/dvbsubdec: Return proper error codes from more functions 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-10 19:24:27 +01:00
Michael Niedermayer
ebe3a41ea3 avcodec/dvbsubdec: Add some av_malloc() failure checks 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-01-10 19:21:58 +01:00
Michael Niedermayer
ce800d4695 avcodec/dvbsubdec: Remove redundant "DVBSub error" prefix 
Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-12-06 02:03:08 +01:00
Michael Niedermayer
4ba0141921 avcodec/dvbsubdec: Pass context to av_log() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-12-05 20:33:57 +01:00
Michael Niedermayer
d03867c248 avcodec/dvbsubdec: av_assert* instead of assert() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-12 20:08:24 +01:00
Michael Niedermayer
39dfe6801a avcodec/dvbsubdec: Cleanup on *malloc failure 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-12 17:54:52 +01:00
Michael Niedermayer
287eb69973 Merge commit '443502aed8b814d883825e52e91e4f018955aa66' 
* commit '443502aed8b814d883825e52e91e4f018955aa66':
  dvbsubdec: move shared codepath

Conflicts:
	libavcodec/dvbsubdec.c

The merged code is ignored and the factorization redone with
the code that is in FFmpeg.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-11 23:08:55 +01:00
Michael Niedermayer
e0c36f5825 avcodec/dvbsubdec: Fix 8bit non_mod case 
Untested, i failed to find a sample which triggers this case

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-11 22:57:01 +01:00
Michael Niedermayer
2813dabdd4 avcodec/dvbsubdec: use av_freep() for saftey 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-11 22:20:20 +01:00
Michael Niedermayer
4809ac75fc Merge commit '2383323661f3b8342b2c4d356fcfe8c5d1b045f8' 
* commit '2383323661f3b8342b2c4d356fcfe8c5d1b045f8':
  dvbsubdec: improve error checking

Conflicts:
	libavcodec/dvbsubdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-11 22:19:54 +01:00
Michael Niedermayer
6229f7823e avcodec/dvbsubdec: Add return code to save_subtitle_set() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-11-11 22:15:14 +01:00
Vittorio Giovara
443502aed8 dvbsubdec: move shared codepath 
CC: libav-stable@libav.org
Bug-Id: CID 1238839
 2014-11-11 11:49:54 +01:00
Vittorio Giovara
2383323661 dvbsubdec: improve error checking 
Use av_mallocz_array instead of iterating and check the returned memory.
Check returned memory and cleanly exit in case of error during the loop.
Avoid a null pointer dereference for invalid data.

CC: libav-stable@libav.org
Bug-Id: CID 29575
 2014-11-11 11:49:54 +01:00
Jernej Fijačko
1bdd21d975 dvbsubdec: add missing break 
Fix a memory leak too.

CC: libav-stable@libav.org
Bug-Id: CID 732230
 2014-11-11 11:49:54 +01:00
Michael Niedermayer
adfc3b81b1 avcodec/dvbsubdec: use av_freep() to avoid leaving stale pointers 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-10-30 23:29:33 +01:00
Michael Niedermayer
25a360286d avcodec/dvbsubdec: merge declaration and init 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-10-30 23:28:15 +01:00
Michael Niedermayer
a2dbf379f0 avcodec/dvbsubdec: make compute_edt user settable 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-09-01 19:51:58 +02:00
Michael Niedermayer
0014541e9a avcodec/dvbsubdec: dont mix integers with pointers 
Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-16 15:58:40 +02:00
Anshul Maheshwari
7d1898ebcc avcodec/dvbsubdec: removed unnecessary null check for subtitle 
In refrence to coverity defect 1224278

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-07-02 19:47:14 +02:00
Anshul Maheshwari
263932c084 avcodec/dvbsubdec: fix ignoring blank frame by updating got_output 
fix ticket 3737

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-27 14:35:58 +02:00
Anshul Maheshwari
ca2f59e121 avcodec/dvbsubdec: support returning exact end times 
fixess part of ticket #2024

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-22 21:06:49 +02:00
Anshul Maheshwari
fbb59a3bf4 avcodec/dvbsubdec: Split save_subtitle_set() out 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-15 20:16:49 +02:00
Anshul Maheshwari
77ade55fe5 avcodec/dvbsubdec: add AVClass to context 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-15 19:59:26 +02:00
Anshul Maheshwari
9a11b33a2d avcodec/dvbsubdec: restructure version check 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-15 19:56:09 +02:00
Michael Niedermayer
8f4b176c55 avcodec/dvbsubdec: add some basic av_log debuging support 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-04 18:09:18 +02:00
Michael Niedermayer
994a582a02 avcodec/dvbsubdec: use av_mallocz_array() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-22 20:08:30 +02:00
Michael Niedermayer
5440151fa4 Merge commit '3dc6272bed7890a49080e18eacf3c7a4a6594b0d' 
* commit '3dc6272bed7890a49080e18eacf3c7a4a6594b0d':
  Remove a number of unnecessary dsputil.h #includes

Conflicts:
	libavcodec/h264pred.c
	libavcodec/vc1dsp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-05 18:54:15 +02:00
Diego Biurrun
3dc6272bed Remove a number of unnecessary dsputil.h #includes 2014-04-04 19:08:05 +02:00