b895e29941
avcodec/dvdsubdec: fix accessing dangling pointers
...
dvdsub_decode() can call append_to_cached_buf() 2 times, the second time
with ctx->buf as argument. If the second append_to_cached_buf() reallocs
ctx->buf, the argument will be a pointer to the previous, freed block.
This can cause invalid reads at least with some fuzzed files - and
possibly with valid files.
Since packets can apparently not be larger than 64K (even if packets are
combined), just use a fixed size buffer. It will be allocated as part of
the DVDSubContext, and although some memory is "wasted", it's relatively
minimal by modern standards and should be acceptable.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 816577716b
2015-01-09 17:19:10 +01:00
3d71024f8a
avcodec/dvdsubdec: error on bitmaps with size 0
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Attemtping to decode them could lead to invalid writes with some fuzzed
samples.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bcaa9099b3
2015-01-09 17:19:10 +01:00
e0a12b3dc3
avcodec/dvdsubdec: fix out of bounds accesses
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The code blindly trusted buffer offsets read from the file in the RLE
decoder. Explicitly check the offset. Also error out on other RLE
decoding errors.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c9151de7c4
2015-01-09 17:19:10 +01:00
ac967ad872
Merge commit 'd466d82faaf6e0e57a3a4be5e38e3902ef251ac3'
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* commit 'd466d82faaf6e0e57a3a4be5e38e3902ef251ac3':
dvdsubdec: Do not leak on failure path
Conflicts:
libavcodec/dvdsubdec.c
See: 7fa9f7ef1c
2014-11-21 22:36:01 +01:00
d466d82faa
dvdsubdec: Do not leak on failure path
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CC: libav-stable@libav.org
Bug-Id: CID 1198262
2014-11-21 12:36:19 +00:00
1de786777e
avcodec/dvdsubdec: Check all fseek()s return codes
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Fixes CID1254660
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-16 17:50:18 +01:00
12630fa821
avcodec/dvdsubdec: New option for obtaining global palette from .IFO file (experimental)
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Suggested-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-15 12:50:39 +01:00
c7d21dee28
libavcodec/dvdsubdec: Add option forced_subs_only to only decode forced subtitle frames.
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Signed-off-by: Nicholas Robbins <nickrobbins@yahoo.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-22 21:01:13 +02:00
5c073bbb57
avcodec/dvdsubdec: fix VD/SD identifier name
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Found-by: Nicholas Robbins <nickrobbins-at-yahoo.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-19 23:47:20 +02:00
2d7cec14be
avcodec/dvdsubdec: Dont mix integers with pointers
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Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-16 15:58:40 +02:00
fb33bff990
Merge commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39'
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* commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39':
cosmetics: Write NULL pointer equality checks more compactly
Conflicts:
cmdutils.c
ffmpeg_opt.c
ffplay.c
libavcodec/dvbsub.c
libavcodec/dvdsubdec.c
libavcodec/dvdsubenc.c
libavcodec/dxa.c
libavcodec/libxvid_rc.c
libavcodec/mpegvideo.c
libavcodec/mpegvideo_enc.c
libavcodec/rv10.c
libavcodec/tiffenc.c
libavcodec/utils.c
libavcodec/vc1dec.c
libavcodec/zmbv.c
libavdevice/v4l2.c
libavformat/matroskadec.c
libavformat/movenc.c
libavformat/sdp.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-15 21:00:50 +02:00
4b1f5e5090
cosmetics: Write NULL pointer inequality checks more compactly
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2014-08-15 05:34:13 -07:00
f929ab0569
cosmetics: Write NULL pointer equality checks more compactly
...
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2014-08-15 03:18:18 -07:00
dd200c56c0
avcodec/dvdsubdec: free subtitle rectangles if nothing is output
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Fixes assertion failure
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-07-31 14:17:46 +02:00
d73823286d
avcodec/dvdsubdec: fix alpha in debuging code
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improve the debugging function for saving subtitles
to PPM files: Actually use the alpha channel.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-07-04 00:35:21 +02:00
3f0a3e9e12
avcodec/dvdsubdec: Fix off-by-one error
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Fix an off-by-one error that causes the height of decoded
subtitles to be too small, thus cutting off the lowest row
of pixels.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-07-04 00:32:43 +02:00
5440151fa4
Merge commit '3dc6272bed7890a49080e18eacf3c7a4a6594b0d'
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* 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
3dc6272bed
Remove a number of unnecessary dsputil.h #includes
2014-04-04 19:08:05 +02:00
6016b8329b
Merge commit '05563ccacc98fd185affdbf8cbaf094caf36b852'
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* commit '05563ccacc98fd185affdbf8cbaf094caf36b852':
dsputil: cosmetics: Lose camelCase on ff_cropTbl and ff_squareTbl names
Conflicts:
libavcodec/bit_depth_template.c
libavcodec/motionpixels_tablegen.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-14 00:39:51 +01:00
05563ccacc
dsputil: cosmetics: Lose camelCase on ff_cropTbl and ff_squareTbl names
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Also switch from "tbl" to "tab" name suffixes.
2014-03-13 08:12:44 -07:00
7fa9f7ef1c
dvdsub_parse_extradata: fix memleak
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Fixes CID1135765
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-12-10 18:30:44 +01:00
b7fea3daab
libavcodec/dvdsubdec: remove exit() call in debug code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-08 00:42:50 +01:00
48f37664a8
Merge remote-tracking branch 'qatar/master'
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* qatar/master:
Remove #undefs for formerly forbidden system functions
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-07 23:39:31 +01:00
86f910806b
Remove #undefs for formerly forbidden system functions
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The macros forbidding the system functions no longer exist, obviating
the need for the #undefs.
2013-11-07 00:26:15 +01:00
4a35651267
Merge commit 'd6da372984c87fd6288c148c291065d6032ceda3'
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* commit 'd6da372984c87fd6288c148c291065d6032ceda3':
eacmv: stop using deprecated avcodec_set_dimensions
dvdsubdec: stop using deprecated avcodec_set_dimensions
dvdec: stop using deprecated avcodec_set_dimensions
dpx: stop using deprecated avcodec_set_dimensions
Conflicts:
libavcodec/dpx.c
libavcodec/dvdec.c
libavcodec/dvdsubdec.c
libavcodec/eacmv.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-01 14:01:02 +01:00
babbec0867
dvdsubdec: stop using deprecated avcodec_set_dimensions
2013-10-31 20:14:15 +01:00
ee77140afa
Merge commit 'b2bed9325dbd6be0da1d91ffed3f513c40274fd2'
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* commit 'b2bed9325dbd6be0da1d91ffed3f513c40274fd2':
cosmetics: Group .name and .long_name together in codec/format declarations
Conflicts:
libavcodec/8svx.c
libavcodec/alac.c
libavcodec/cljr.c
libavcodec/dnxhddec.c
libavcodec/dnxhdenc.c
libavcodec/dpxenc.c
libavcodec/dvdec.c
libavcodec/dvdsubdec.c
libavcodec/dvdsubenc.c
libavcodec/ffv1dec.c
libavcodec/flacdec.c
libavcodec/flvdec.c
libavcodec/fraps.c
libavcodec/frwu.c
libavcodec/g726.c
libavcodec/gif.c
libavcodec/gifdec.c
libavcodec/h261dec.c
libavcodec/h263dec.c
libavcodec/iff.c
libavcodec/imc.c
libavcodec/libopencore-amr.c
libavcodec/libopenjpegdec.c
libavcodec/libopenjpegenc.c
libavcodec/libspeexenc.c
libavcodec/libvo-amrwbenc.c
libavcodec/libvorbisenc.c
libavcodec/libvpxenc.c
libavcodec/libx264.c
libavcodec/libxavs.c
libavcodec/libxvid.c
libavcodec/ljpegenc.c
libavcodec/mjpegbdec.c
libavcodec/mjpegdec.c
libavcodec/mpeg12dec.c
libavcodec/mpeg4videodec.c
libavcodec/msmpeg4dec.c
libavcodec/pgssubdec.c
libavcodec/pngdec.c
libavcodec/pngenc.c
libavcodec/proresdec_lgpl.c
libavcodec/proresenc_kostya.c
libavcodec/ra144enc.c
libavcodec/rawdec.c
libavcodec/rv10.c
libavcodec/sp5xdec.c
libavcodec/takdec.c
libavcodec/tta.c
libavcodec/v210dec.c
libavcodec/vp6.c
libavcodec/wavpack.c
libavcodec/xbmenc.c
libavcodec/yop.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-04 12:34:23 +02:00
95cafeb684
avcodec/dvdsubdec: reconstruct incomplete SPU packets.
2013-10-04 07:59:48 +02:00
71e0ae22ac
avcodec/dvdsubdec: extract every subtitle in a different file (debug).
...
Even thought a generic solution would be more relevant, this is
currently helpful while debugging.
2013-10-04 07:59:48 +02:00
41fd6f0796
avcodec/dvdsubdec: factor out rectangles reset.
2013-10-04 07:59:48 +02:00
b2bed9325d
cosmetics: Group .name and .long_name together in codec/format declarations
2013-10-03 23:32:01 +02:00
0915b531bc
Rename "AVClass class" as "AVClass component_class".
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The aix header math.h defines "extern int class()" for C.
2013-06-30 13:47:45 +02:00
efc08e00cc
Merge commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110'
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* commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110':
vf_aspect: use the name 's' for the pointer to the private context
Remove commented-out debug #define cruft
Conflicts:
libavcodec/4xm.c
libavcodec/dvdsubdec.c
libavcodec/ituh263dec.c
libavcodec/mpeg12.c
libavfilter/avfilter.c
libavfilter/vf_aspect.c
libavfilter/vf_fieldorder.c
libavformat/rtmpproto.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-16 09:56:43 +02:00
2832ea26f3
Remove commented-out debug #define cruft
2013-05-16 00:23:30 +02:00
a1f234be11
make the ordering of the return type and av_cold consistent
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-05 13:13:00 +02:00
0aa095483d
Merge commit '6fee1b90ce3bf4fbdfde7016e0890057c9000487'
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* commit '6fee1b90ce3bf4fbdfde7016e0890057c9000487':
avcodec: Add av_cold attributes to init functions missing them
Conflicts:
libavcodec/aacpsy.c
libavcodec/atrac3.c
libavcodec/dvdsubdec.c
libavcodec/ffv1.c
libavcodec/ffv1enc.c
libavcodec/h261enc.c
libavcodec/h264_parser.c
libavcodec/h264dsp.c
libavcodec/h264pred.c
libavcodec/libschroedingerenc.c
libavcodec/libxvid_rc.c
libavcodec/mpeg12.c
libavcodec/mpeg12enc.c
libavcodec/proresdsp.c
libavcodec/rangecoder.c
libavcodec/videodsp.c
libavcodec/x86/proresdsp_init.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-05 11:34:29 +02:00
6fee1b90ce
avcodec: Add av_cold attributes to init functions missing them
2013-05-04 21:09:45 +02:00
024a5f72ee
Merge commit '9e0f14f16cfc9456a691655fda7d01090bffe47e'
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* commit '9e0f14f16cfc9456a691655fda7d01090bffe47e':
lavc: Make pointers to ff_cropTbl const
vp3: Embed idct_permutation array directly in VP3DecoderContext
Conflicts:
libavcodec/bit_depth_template.c
libavcodec/vp3.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-08 12:47:49 +02:00
9e0f14f16c
lavc: Make pointers to ff_cropTbl const
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There's no point in these pointers not being const.
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-04-08 12:38:33 +03:00
efa7f42020
Use the avstring.h locale-independent character type functions
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Make sure the behavior does not change with the locale.
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-03-07 15:16:36 +02:00
88d55b827d
Remove incorrect use of ctype.h functions.
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As far as I can tell the code should not change behaviour
depending on locale in any of these places.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2013-03-03 21:44:10 +01:00
40976257bc
dvdsubdec: parse the size from the extradata
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Signed-off-by: Alexandra Khirnova <alexandra.khirnova@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-01-19 15:12:58 +01:00
06af724c56
Merge commit 'fb845ffdd335a1efd6dfd43e8adeb530397b348e'
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* commit 'fb845ffdd335a1efd6dfd43e8adeb530397b348e':
h264: add 3 pixels below for subpixel filter wait position
dvdsubdec: Support palette in mkv
Conflicts:
libavcodec/dvdsubdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-16 12:01:21 +01:00
f924d52975
dvdsubdec: Support palette in mkv
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Matroska stores palette information as plain text in extradata.
Signed-off-by: Alexandra Khirnova <alexandra.khirnova@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-01-15 20:51:51 +01:00
754dd7e889
dvdsubdec: use unsigned shifts to avoid shifting into the sign bit
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-12 21:39:00 +01:00
217b10de3f
lavc/dvdsubdec: accept palette from options.
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On DVDs, the palette is part of the IFO file and therefore
not available when reading from a dumped VOB file.
2012-12-05 09:25:48 +01:00
1885ffb03d
Merge commit '9a07c1332cfe092b57b5758f22b686ca58806c60'
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* commit '9a07c1332cfe092b57b5758f22b686ca58806c60':
parser: Move Doxygen documentation to the header files
PGS subtitles: Expose forced flag
x86: PMINUB: port to cpuflags
Conflicts:
libavcodec/avcodec.h
libavcodec/pgssubdec.c
libavcodec/version.h
libavcodec/x86/ac3dsp.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-03 14:13:45 +01:00
3b6e9cd7ec
lavc/dvdsubdec: parse the size from the extradata.
2012-09-04 23:38:29 +02:00
7a72695c05
Merge commit '36ef5369ee9b336febc2c270f8718cec4476cb85'
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* commit '36ef5369ee9b336febc2c270f8718cec4476cb85':
Replace all CODEC_ID_* with AV_CODEC_ID_*
lavc: add AV prefix to codec ids.
Conflicts:
doc/APIchanges
doc/examples/decoding_encoding.c
doc/examples/muxing.c
ffmpeg.c
ffprobe.c
ffserver.c
libavcodec/8svx.c
libavcodec/avcodec.h
libavcodec/dnxhd_parser.c
libavcodec/dvdsubdec.c
libavcodec/error_resilience.c
libavcodec/h263dec.c
libavcodec/libvorbisenc.c
libavcodec/mjpeg_parser.c
libavcodec/mjpegenc.c
libavcodec/mpeg12.c
libavcodec/mpeg4videodec.c
libavcodec/mpegvideo.c
libavcodec/mpegvideo_enc.c
libavcodec/pcm.c
libavcodec/r210dec.c
libavcodec/utils.c
libavcodec/v210dec.c
libavcodec/version.h
libavdevice/alsa-audio-dec.c
libavdevice/bktr.c
libavdevice/v4l2.c
libavformat/asfdec.c
libavformat/asfenc.c
libavformat/avformat.h
libavformat/avidec.c
libavformat/caf.c
libavformat/electronicarts.c
libavformat/flacdec.c
libavformat/flvdec.c
libavformat/flvenc.c
libavformat/framecrcenc.c
libavformat/img2.c
libavformat/img2dec.c
libavformat/img2enc.c
libavformat/ipmovie.c
libavformat/isom.c
libavformat/matroska.c
libavformat/matroskadec.c
libavformat/matroskaenc.c
libavformat/mov.c
libavformat/movenc.c
libavformat/mp3dec.c
libavformat/mpeg.c
libavformat/mpegts.c
libavformat/mxf.c
libavformat/mxfdec.c
libavformat/mxfenc.c
libavformat/nsvdec.c
libavformat/nut.c
libavformat/oggenc.c
libavformat/pmpdec.c
libavformat/rawdec.c
libavformat/rawenc.c
libavformat/riff.c
libavformat/sdp.c
libavformat/utils.c
libavformat/vocenc.c
libavformat/wtv.c
libavformat/xmv.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-08-07 22:45:46 +02:00
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
2012-08-07 16:00:24 +02:00
wm4
Michael Niedermayer
Luca Barbato
Shin-ichi Toyama
Nicholas Robbins
Gabriel Dume
Oliver Fromme
Diego Biurrun
Anton Khirnov
Clément Bœsch
Carl Eugen Hoyos
Martin Storsjö
Reimar Döffinger
Clément Bœsch
Joakim Plate
Nicolas George