FFmpeg

Commit Graph

Author	SHA1	Message	Date
Vittorio Giovara	ec17782e17	dvdsubdec: Check memory allocations	10 years ago
wm4	816577716b	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>	10 years ago
wm4	bcaa9099b3	avcodec/dvdsubdec: error on bitmaps with size 0 Attemtping to decode them could lead to invalid writes with some fuzzed samples. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
wm4	c9151de7c4	avcodec/dvdsubdec: fix out of bounds accesses 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>	10 years ago
Michael Niedermayer	5d0cfb58ef	avcodec/dvdsubdec: Avoid strerror() due to thread saftey Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Luca Barbato	d466d82faa	dvdsubdec: Do not leak on failure path CC: libav-stable@libav.org Bug-Id: CID 1198262	10 years ago
Michael Niedermayer	1de786777e	avcodec/dvdsubdec: Check all fseek()s return codes Fixes CID1254660 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Shin-ichi Toyama	12630fa821	avcodec/dvdsubdec: New option for obtaining global palette from .IFO file (experimental) Suggested-by: Nicolas George <george@nsup.org> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Nicholas Robbins	c7d21dee28	libavcodec/dvdsubdec: Add option forced_subs_only to only decode forced subtitle frames. Signed-off-by: Nicholas Robbins <nickrobbins@yahoo.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	5c073bbb57	avcodec/dvdsubdec: fix VD/SD identifier name Found-by: Nicholas Robbins <nickrobbins-at-yahoo.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Michael Niedermayer	2d7cec14be	avcodec/dvdsubdec: Dont mix integers with pointers Reviewed-by: James Darnley <james.darnley@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Gabriel Dume	4b1f5e5090	cosmetics: Write NULL pointer inequality checks more compactly Signed-off-by: Diego Biurrun <diego@biurrun.de>	10 years ago
Gabriel Dume	f929ab0569	cosmetics: Write NULL pointer equality checks more compactly Signed-off-by: Diego Biurrun <diego@biurrun.de>	10 years ago
Michael Niedermayer	dd200c56c0	avcodec/dvdsubdec: free subtitle rectangles if nothing is output Fixes assertion failure Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Oliver Fromme	d73823286d	avcodec/dvdsubdec: fix alpha in debuging code improve the debugging function for saving subtitles to PPM files: Actually use the alpha channel. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Oliver Fromme	3f0a3e9e12	avcodec/dvdsubdec: Fix off-by-one error 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>	11 years ago
Diego Biurrun	3dc6272bed	Remove a number of unnecessary dsputil.h #includes	11 years ago
Diego Biurrun	05563ccacc	dsputil: cosmetics: Lose camelCase on ff_cropTbl and ff_squareTbl names Also switch from "tbl" to "tab" name suffixes.	11 years ago
Michael Niedermayer	7fa9f7ef1c	dvdsub_parse_extradata: fix memleak Fixes CID1135765 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	b7fea3daab	libavcodec/dvdsubdec: remove exit() call in debug code Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	86f910806b	Remove #undefs for formerly forbidden system functions The macros forbidding the system functions no longer exist, obviating the need for the #undefs.	11 years ago
Anton Khirnov	babbec0867	dvdsubdec: stop using deprecated avcodec_set_dimensions	11 years ago
Clément Bœsch	95cafeb684	avcodec/dvdsubdec: reconstruct incomplete SPU packets.	11 years ago
Clément Bœsch	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.	11 years ago
Clément Bœsch	41fd6f0796	avcodec/dvdsubdec: factor out rectangles reset.	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Carl Eugen Hoyos	0915b531bc	Rename "AVClass class" as "AVClass component_class". The aix header math.h defines "extern int class()" for C.	12 years ago
Diego Biurrun	2832ea26f3	Remove commented-out debug #define cruft	12 years ago
Michael Niedermayer	a1f234be11	make the ordering of the return type and av_cold consistent Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	6fee1b90ce	avcodec: Add av_cold attributes to init functions missing them	12 years ago
Martin Storsjö	9e0f14f16c	lavc: Make pointers to ff_cropTbl const There's no point in these pointers not being const. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Reimar Döffinger	efa7f42020	Use the avstring.h locale-independent character type functions Make sure the behavior does not change with the locale. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Reimar Döffinger	88d55b827d	Remove incorrect use of ctype.h functions. 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>	12 years ago
Clément Bœsch	40976257bc	dvdsubdec: parse the size from the extradata Signed-off-by: Alexandra Khirnova <alexandra.khirnova@gmail.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Joakim Plate	f924d52975	dvdsubdec: Support palette in mkv 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>	12 years ago
Michael Niedermayer	754dd7e889	dvdsubdec: use unsigned shifts to avoid shifting into the sign bit Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Nicolas George	217b10de3f	lavc/dvdsubdec: accept palette from options. On DVDs, the palette is part of the IFO file and therefore not available when reading from a dumped VOB file.	12 years ago
Clément Bœsch	3b6e9cd7ec	lavc/dvdsubdec: parse the size from the extradata.	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
hakuya	79e5902cf1	Exposing forced flag for DVD and PGS subtitles Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Martin Storsjö	00c3b67b8a	cosmetics: Align codec declarations Also break some long lines, remove codec function placeholder comments and add spaces in sample/pixel format lists. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Diego Biurrun	a92be9b856	Replace memset(0) by zero initializations. Also remove one pointless zero initialization in rangecoder.c.	13 years ago
Diego Biurrun	124e28847b	Remove some stray unnecessary ffmpeg references.	13 years ago
Kelly Anderson	872655fee9	dvdsubdec: fix bad free in dvdsub_init Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Joakim Plate	32c0c562e7	dvdsubdec: Move colormap and alpha to context This makes it rememember old values should the stream not contain new values for these for each subtitle.	13 years ago
Joakim Plate	7009b96511	dvdsubdec: Support palette information for vobsub's stored as text in extradata This is how mkv's store palette information for vobsubs Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Reimar Döffinger	99c7b51641	Abort if command offset decreases, avoids potential endless loop. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
Anton Khirnov	ec6402b7c5	lavc: use designated initialisers for all codecs. It's more readable and less prone to breakage.	14 years ago
Alexandre Colucci	676eaf8433	dvdsubdec: fix incorrect colors. On DVD and HD-DVD colors are stored in the order YCrCb (and not YCbCr) as mentioned in the specifications: see DVD Specifications for Read-Only Disc / Part 3, 4.3 Program Chain Information (7) PGC_SP_PLT see DVD Specifications for High Definition Disc, 5.2 Navigation for Standard Content (11) PGC_SDSP_PLT see DVD Specifications for High Definition Disc, 5.2 Navigation for Standard Content (12) PGC_HDSP_PLT see DVD Specifications for High Definition Disc, 5.5 Presentation Data (4) SET_COLOR2 When decoding a DVD or HD-DVD subtitle, the colors were incorrectly set. Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
Reimar Döffinger	cf16104ad1	Change guess_palette so its output matches the most common palette. This means it uses full brightness range and brightness increasing instead of decreasing with index of non-opaque color. Based on patch by Alexandre Colucci [alexandre elgato com]	14 years ago

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101 Commits (fb6dd77000f1ad6740494269f55a0ff21df5bcf2)