FFmpeg

Commit Graph

Author	SHA1	Message	Date
Andreas Rheinhardt	3d284e35c2	avcodec/g723_1: Deduplicate arrays Saves about 17KB. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>	4 years ago
Michael Niedermayer	504d5804ac	avcodec/g723_1: Fix runtime error: signed integer overflow: -1013481472 + -1139123755 cannot be represented in type 'int' See: LsptoA() and L_add() Fixes: 1758/clusterfuzz-testcase-minimized-6054857184116736 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	4ace2d2219	avcodec/g723_1: Fix multiple runtime error: left shift of negative value Fixes: 1367/clusterfuzz-testcase-minimized-571496882346393 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Clément Bœsch	fb99ef0bd3	avcodec: use AV_OPT_TYPE_BOOL in a bunch of places	9 years ago
Mohamed Naufal	f023d57d35	lavc: G.723.1 encoder Additional improvements by Michael Niedermayer <michaelni@gmx.at>. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	165cc6fb9d	g723_1: Move sharable functions to a separate file Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Vittorio Giovara	aac996cc01	g723_1: Rename files to better reflect their purpose Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	b74b88f30d	g723_1: Handle values at the ends of the table in lsp2lpc() Fixes out of array reads. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Ganesh Ajjanagadde	4328e1fc42	avcodec/g723_1: fix a undefined left shift of negative number This fixes a -Wshift-negative-value reported with clang 3.7+, e.g http://fate.ffmpeg.org/log.cgi?time=20150918181527&log=compile&slot=x86_64-darwin-clang-polly-vectorize-stripmine-3.7. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 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
Michael Niedermayer	e36db49b7b	avcodec: Add a min size parameter to ff_alloc_packet2() This parameter can be used to inform the allocation code about how much downsizing might occur, and can be used to optimize how to allocate the packet Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	10 years ago
Diego Biurrun	7f9f771eac	avcodec: Don't anonymously typedef structs	10 years ago
Michael Niedermayer	d35000c2dc	avcodec/g723_1: fix writing into input frame data and warning Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Michael Niedermayer	1457f3fd90	avcodec/g723_1: add assert to help static code analyzers Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Clément Bœsch	b46f19100b	cosmetics: group remaining .name and .long_name. See `b2bed9325`.	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Michael Niedermayer	a072acb108	avcodec: fix duplicate includes Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 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
James Zern	bcaf64b605	normalize calls to ff_alloc_packet2 - check ret < 0 - remove excessive error log Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Justin Ruggles	7e52fd6bca	g723.1: decode directly to the user-provided AVFrame	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
Michael Niedermayer	6535d81d87	g723_1dec: Fix lsp2lpc() so it can handle values at the ends of the table. Fixes out of array reads Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Justin Ruggles	a903f8f087	Include libavutil/channel_layout.h instead of libavutil/audioconvert.h Also reorder some other #include when applicable.	12 years ago
Diego Biurrun	5bac2d0c30	avutil: Move memcpy_backptr() to mem.c The function is used elsewhere and does not belong with the LZO code.	12 years ago
Anton Khirnov	5a9567631a	g.723.1: add missing CODEC_CAP_DR1	12 years ago
Michael Niedermayer	34ccb94796	g723_1: remove unneeded cliping Fixes CID703731 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	014b178f84	g723_1: fix overflow in square_root() the intermediate does not fit in a signed 32bit int Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	269e6212ee	g723_1: add some const for more correctness Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Martin Storsjö	e6153f173a	avopt: Store defaults for AV_OPT_TYPE_INT in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Kostya Shishkov	04fc5c6bde	g723_1: add comfort noise generation	13 years ago
Mans Rullgard	0d230e9312	g723.1: simplify scale_vector() It is impossible for bits to be 15 here so the special case is not needed. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	a4b8fc3a8a	g723.1: simplify normalize_bits() This function is always called with a non-negative argument, so those special cases are not needed. In the places the argument might be zero, the return value for a zero argument does not matter since it would then be used to scale an array full of zeros. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Michael Niedermayer	603221ebd0	g723_1dec: inline normalize_bits() in scale vector and optimize it. many branches and cases of scale_vector are irrelevant for the case here and by inlining they can be reliably removed. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	20035fa241	g723_1dec: remove dead code that leaked in from libav It appears someone thinks this special case can be reached Well, it cannot, thus not only do we not need to optimize it we dont need it at all Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	84d29df013	g723_1dec: remove unneeded cliping that leaked in from merge from libav Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	a9040a1167	g723_1dec: avoid memcpy Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Mans Rullgard	69665bd6f4	g723.1: do not pass large structs by value Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	138914dcd8	g723.1: do not bounce intermediate values via memory Although a reasonable compiler will probably optimise out the actual store and load, this operation still implies a truncation to 16 bits which the compiler will probably not realise is not necessary here. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	cbcf1b411f	g723.1: declare a variable in the block it is used Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	35b533e4de	g723.1: avoid saving/restoring excitation Writing the scaled excitation to a scratch buffer (borrowing the 'audio' array) instead of modifying it in place avoids the need to save and restore the unscaled values. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	4b728b4712	g723.1: avoid unnecessary memcpy() in residual_interp() Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	f645710cf3	g723.1: make postfilter write directly to output buffer Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	1953264331	g723.1: drop unnecessary variable buf_ptr in formant_postfilter() Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	b2af2c4bee	g723.1: make scale_vector() output to a separate buffer Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	783da0d696	g723.1: make autocorr_max() work on an arbitrary buffer Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	3716105103	g723.1: do not needlessly use int64_t Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	47c73a73b0	g723.1: use saturating addition functions Use saturating addition functions instead of 64-bit intermediates and separate clipping. This is much faster when dedicated instructions are available. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	4aca716a53	g723.1: optimise scale_vector() Firstly, nothing in this function can overflow 32 bits so the use of a 64-bit type is completely unnecessary. Secondly, the scale is either a power of two or 0x7fff. Doing separate loops for these cases avoids using multiplications. Finally, since only the number of bits, not the actual value, of the maximum value is needed, the bitwise or of all the values serves the purpose while being faster. It is worth noting that even if overflow could happen, it was not handled correctly anyway. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	1eb1f6f281	g723.1: remove useless uses of MUL64() The operands in both cases are 16-bit so cannot overflow a 32-bit destination. In gain_scale() the inputs are reduced to 14-bit, so even the shift cannot overflow. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago

1 2

51 Commits (d0293c770bbc747ba8eaa310f7b3632207a36ebd)