FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	746ab8327c	avcodec/asvenc: Avoid reversing output data twice The ASUS V2 format is designed for a little-endian bitstream reader, yet our encoder used an ordinary big-endian bitstream writer to write it; the bits of every byte were swapped at the end and some data (namely the numbers not in static tables) had to be bitreversed before writing it at all, so that it would be reversed twice. This commit stops doing so; instead, a little-endian bitstream writer is used. This also necessitated to switch certain static tables, which required trivial modifications to the decoder (that uses the same tables). Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	cdf7619705	avcodec/asvdec: Avoid reversing input data twice Up until now the ASV2 decoder used an ordinary big-endian bitreader to read data actually destined for a little-endian bitreader; this is done by reversing the whole input packet bitwise, using the big-endian bigreader and reversing (and shifting) the result again. This commit stops this and instead uses a little-endian bitreader directly. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	4f3edcdcbc	avcodec/asvdec: Use init_get_bits8() Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	2a8edb1ad3	avcodec/asvdec: Reduce the size of some VLCs Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Michael Niedermayer	adb4854aac	avcodec/asvdec: Use rounded up dimenensions in input size check Fixes: Timeout Fixes: 2001/clusterfuzz-testcase-minimized-6187599389523968 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Michael Niedermayer	cfd1ecdc0b	avcodec/asvdec: Check buf_size Fixes Timeout Fixes: 1746/clusterfuzz-testcase-minimized-6687393392361472 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Diego Biurrun	dcc39ee10e	lavc: Remove deprecated XvMC support hacks Deprecated in 11/2013.	8 years ago
Diego Biurrun	a25dac976a	Use bitstream_init8() where appropriate	8 years ago
Paul B Mahol	0ed4993ad0	avcodec/asvdec: return correct value in case of error Signed-off-by: Paul B Mahol <onemda@gmail.com>	8 years ago
Alexandra Hájková	41679be1a2	asvdec: Convert to the new bitstream reader Signed-off-by: Anton Khirnov <anton@khirnov.net>	8 years ago
Vittorio Giovara	def97856de	lavc: AV-prefix all codec capabilities Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	7c6eb0a1b7	lavc: AV-prefix all codec flags Convert doxygen to multiline and express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Gabriel Dume	f61e47dd68	asv: K&R formatting cosmetics Signed-off-by: Diego Biurrun <diego@biurrun.de>	10 years ago
Diego Biurrun	e3fcb14347	dsputil: Split off IDCT bits into their own context	11 years ago
Diego Biurrun	c67b449beb	dsputil: Split bswap*_buf() off into a separate context	11 years ago
Diego Biurrun	e74433a8e6	dsputil: Split clear_block/fill_block off into a separate context	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Michael Niedermayer	13b353a7cb	avcodec/asvdec: dont fail without extradata extradata is not mandatory to decode asv Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Martin Storsjö	f50803354c	asvdec: Verify the amount of extradata The init function reads one byte of extradata. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Diego Biurrun	2832ea26f3	Remove commented-out debug #define cruft	12 years ago
Paul B Mahol	aa96439fae	lavc: remove unused put_bits.h headers Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Clément Bœsch	1ec94b0f06	lavc: factorize ff_{thread_,re,}get_buffer error messages. Coccinelle profile used: @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_get_buffer(ctx, f, flags)) < 0) + return r; @@ expression r, ctx, f, loglevel, str; @@ -if ((r = ff_reget_buffer(ctx, f)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_reget_buffer(ctx, f)) < 0) + return r; @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) + return r; ...along with some manual patches for the remaining ones.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Diego Biurrun	c242bbd8b6	Remove unnecessary dsputil.h #includes	12 years ago
Diego Biurrun	88bd7fdc82	Drop DCTELEM typedef It does not help as an abstraction and adds dsputil dependencies. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	12 years ago
Anton Khirnov	38de3365ca	asvdec: return meaningful error codes.	12 years ago
Anton Khirnov	c3a76c3dec	asvdec: cosmetics, reformat	12 years ago
Anton Khirnov	df9b956751	lavc: fix decode_frame() third parameter semantics for video decoders It's got_frame, not data size	12 years ago
Anton Khirnov	594d4d5df3	lavc: add a wrapper for AVCodecContext.get_buffer(). It will be useful in the upcoming transition to refcounted AVFrames.	12 years ago
Diego Biurrun	d5c62122a7	Move av_reverse table to libavcodec It is only used in that library.	12 years ago
Anton Khirnov	233a5a807e	lavc: split asv12 encoder/decoder	12 years ago

45 Commits (c0c6b68ddbe6f7d35e2cb62a7c44970f9475eddd)