FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	a247ac640d	avcodec: Constify AVCodecs Given that the AVCodec.next pointer has now been removed, most of the AVCodecs are not modified at all any more and can therefore be made const (as this patch does); the only exceptions are the very few codecs for external libraries that have a init_static_data callback. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>	4 years ago
Andreas Rheinhardt	f31bf4a1f9	avcodec/mss4: Make VLCs static Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	313e572440	avcodec/mss4: Don't duplicate standard JPEG tables Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	70bbb4cce8	avcodec/mss4: Simplify creating VLC tables The lengths of the codes used by the mss4 decoder are ascending from left to right and therefore the lengths can be run-length encoded and the codes can be easily derived from them. And this is how it is indeed done. Yet some things can nevertheless be improved: a) The number of entries of the current VLC is implicitly contained in the run-length table and needn't be externally prescribed. b) The maximum length of a code is just the length of the last code (given that the lengths are ascending), so there is no point in setting max_bits in the loop itself. c) One can offload the actual calculation of the codes to ff_init_vlc_from_lengths(). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	f1919dc8fa	avcodec/mss4: Mark decoder as init-threadsafe Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Andreas Rheinhardt	4b4c7d6e1a	avcodec/mss4: Fix memleaks upon allocation error During init the mts2 decoder allocates several VLCs and then several buffers in a loop; if one of the latter allocations fails, only the VLCs are freed, not any buffers that might already have been successfully allocated. This commit fixes this by setting the FF_CODEC_CAP_INIT_CLEANUP flag. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
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>	6 years ago
Michael Niedermayer	0fef412dff	avcodec/mss4: Check input size against skip bits Fixes: Timeout (17sec -> 20ms) Fixes: 14615/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MTS2_fuzzer-5093007763701760 Fixes: 14797/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MTS2_fuzzer-5651696119709696 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	6 years ago
Alexandra Hájková	fa64aea12e	unary: Convert to the new bitstream reader	8 years ago
Diego Biurrun	15b4f494fc	mss*: Change type of array stride parameters to ptrdiff_t ptrdiff_t is the correct type for array strides and similar.	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>	10 years ago
Paul B Mahol	418be7ceb4	avcodec/mss4: check return value of init_get_bits8() Signed-off-by: Paul B Mahol <onemda@gmail.com>	10 years ago
Paul B Mahol	e4eba9e21d	avcodec/mss4: use av_malloc_array() Signed-off-by: Paul B Mahol <onemda@gmail.com>	10 years ago
Michael Niedermayer	cf7ff0146c	avcodec/mss4: Fix () in MKVAL() macro 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
Anton Khirnov	730bac7bab	mss4: use the AVFrame API properly.	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	12 years ago
Paul B Mahol	310bf28354	mss4: make code independent of sizeof(AVFrame) Also fixes #2455. Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	b6d5a948f9	mss4: use init_get_bits8() 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	8658e1c682	mss4, ra288: Remove unused DSPContext local codec context members	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	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	13 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	13 years ago
Kostya Shishkov	5b7e3a195d	MS Expression Encoder Screen decoder	13 years ago

36 Commits (966fc3c070c1e5143537007fb26340c179cc02c5)