FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	84d29df013	g723_1dec: remove unneeded cliping that leaked in from merge from libav Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	a9040a1167	g723_1dec: avoid memcpy Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	bd70a52712	paf: prevent invalid write Closes #1631. Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Nicolas George	03e8944fc1	lavc: add missing codec descriptors.	12 years ago
Michael Niedermayer	710600077d	h264_cavlc: switch forgotten assert to av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	e9d0ab5717	h264: fix x264 build detection Fixes Ticket1503 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mans Rullgard	69665bd6f4	g723.1: do not pass large structs by value Signed-off-by: Mans Rullgard <mans@mansr.com>	12 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>	12 years ago
Mans Rullgard	cbcf1b411f	g723.1: declare a variable in the block it is used Signed-off-by: Mans Rullgard <mans@mansr.com>	12 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>	12 years ago
Mans Rullgard	4b728b4712	g723.1: avoid unnecessary memcpy() in residual_interp() Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	f645710cf3	g723.1: make postfilter write directly to output buffer Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	1953264331	g723.1: drop unnecessary variable buf_ptr in formant_postfilter() Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	b2af2c4bee	g723.1: make scale_vector() output to a separate buffer Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	783da0d696	g723.1: make autocorr_max() work on an arbitrary buffer Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	3716105103	g723.1: do not needlessly use int64_t Signed-off-by: Mans Rullgard <mans@mansr.com>	12 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>	12 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>	12 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>	12 years ago
Mans Rullgard	5a43eba956	g723.1: remove unnecessary argument 'shift' from dot_product() The 'shift' argument is always 1 so there is no need to pass it explicitly in every call. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	8b0de73464	g723.1: deobfuscate "(x << 4) - x" to "15 * x" The compiler performs this optimisation. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	fddc5b9bea	celp: optimise ff_celp_lp_synthesis_filter() Adding instead of subtracting the products in the loop allows the compiler to generate more efficient multiply-accumulate instructions when 16-bit multiply-subtract is not available. ARM has only multiply-accumulate for 16-bit operands. In general, if only one variant exists, it is usually accumulate rather than subtract. In the same spirit, using the dedicated saturation function enables use of any special optimised versions of this. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Derek Buitenhuis	17c11cef9f	cllc: Implement ARGB support Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Derek Buitenhuis	ba752dc016	cllc: Implement ARGB support Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Derek Buitenhuis	7fda47d53b	cllc: Add support for QRGB Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Derek Buitenhuis	f4bb38cc26	cllc: Rename some funcs to represent what they actually do This is in preparation for adding support for other colorspaces and coding types. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Derek Buitenhuis	21d62c4730	cllc: Add support for QRGB Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Derek Buitenhuis	4637009e59	cllc: Rename some funcs to represent what they actually do This is in preparation for adding support for other colorspaces and coding types. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Boris Maksalov	d70231f02d	Fix reading past the end of frame buffer. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	3b9e832e17	x86: Drop silly "_yasm" suffixes from filenames	12 years ago
Michael Niedermayer	da74e883f1	lavc: add codec_descriptor field to AVCodecContext. This can be used to avoid a time consuming lookup of the descriptor Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	6fd7bf7b03	sgidec: fix error free end detection. Fixes Ticket1506 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	39c56ef921	sgidec: correct end pointer Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	15e4bd65b1	vc1dec: support debug & FF_DEBUG_PICT_INFO. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	5a49482cc0	dsputil_template: switch to av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	51efed152d	lavc: add an intra-only codec property.	12 years ago
Anton Khirnov	c223d79945	lavc: add codec descriptors. They describe properties that are inherent to a codec (as described by an AVCodecID) without referring to a specific implementation.	12 years ago
Michael Niedermayer	48d20b918c	snowdec: increase stack size Fixes Ticket1632 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	994923ec00	dwt: switch to av_assert Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	58825a18aa	msrle: fix regression causing null ptr dereference Fixes Ticket1630 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	f9505923a3	cavsdec: check dimensions being valid. Fixes crash Fixes Ticket1628 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	2ff67c909c	lavc: fix mixing CODEC_ID/AV_CODEC_ID in C++ code. C++ does not allow to mix different enums, so e.g. code comparing ACodecID with CodecID would fail to compile with gcc. This very evil hack should fix this problem.	12 years ago
Michael Niedermayer	d9d0c1ccc3	mjpegdec: support AVRn interlaced Fixes Ticket1527 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mans Rullgard	05c36e0e5f	g723.1: fix addition overflow This addition must be done as 64-bit to avoid overflow and for the subsequent clipping to be meaningful. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	52aa3015a3	g723.1: simplify and fix multiplication overflow In 16-bit arithmetic, x * 0xffffc is simply x * -4 with extra overflows, (and the constant was probably meant to be 0xfffc). Combined with the shift, this simplifies to -x >> 1. Finally, clearing the low two bits with a 32-bit mask and switching to a 32-bit type allows more efficient code on 32-bit machines. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	e141cf2c57	g723.1: deobfuscate an expression (x << 2) - x is just an optimisation of 3 * x the compiler is perfectly capable of doing on its own. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	e2b7c5783d	g723.1: remove unused #includes Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Diego Biurrun	804d7a1aa6	doxygen: Fix function parameter names to match the code	12 years ago
Mans Rullgard	0db9eba48c	motion_est: drop inline from sad_hpel_motion_search() This function is only ever called through a function pointer, so marking it inline makes no sense. Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	5bf7bc625b	motion_est: remove unused macros Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago

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20279 Commits (e367d90664f622db9f3f1f515ac979bfbd358064)