FFmpeg

Commit Graph

Author	SHA1	Message	Date
Anton Khirnov	cc976a75df	audio_mix: print (SKIP) instead of 0.0 for matrix columns removed along with output zeroing	11 years ago
Anton Khirnov	fc6a3ef40d	audio_mix: fix zeroing output channels in certain cases Specifically, when the corresponding input channel exists and its matrix column is all-zero (which is necessary for zeroing the output), the matrix column must be removed from the matrix. This is not done currently, so the mixing code would end up using uninitialized pointers from stack. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind	11 years ago
Anton Khirnov	3d95d27376	audio_mix: initialize the data pointers to NULL This should make it easier to catch problems where some of those pointers are used uninitialized, since reading from NULL should always crash, while random numbers from stack can turn out to be valid pointers, so random memory may be silently overwritten.	11 years ago
Diego Biurrun	b83d1ee3b4	avutil: Move library version related macros to version.h This is a more sensible place for these macros.	11 years ago
Diego Biurrun	8f8bc92365	Add missing #includes for INT64_MAX and INT64_C	11 years ago
Justin Ruggles	211ca69b13	lavr: check that current_buffer is not NULL before using it Fixes a segfault during resampling when compiled with -DDEBUG. Fixes all fate-lavr-resample tests with -DDEBUG. CC:libav-stable@libav.org	11 years ago
Derek Buitenhuis	206895708e	x86inc: Remove our FMA4 support This is so we can sync to x264's version of FMA4 support. This partialy reverts commit `79687079a9`. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Derek Buitenhuis	15748773bf	avresample/x86: Switch operand order for mulps With the forthcoming VEX instruction emulation, mulps must have only the third operand point to memory, as this is what vmulps expects. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	11 years ago
Anton Khirnov	df6737a55f	audio_mix: fix channel order in mix_1_to_2_fltp_flt_c CC:libav-stable@libav.org	11 years ago
Diego Biurrun	b5a138652f	Give less generic names to global library option arrays	11 years ago
Diego Biurrun	03039f4c8c	miscellaneous typo fixes	11 years ago
Diego Biurrun	3ac7fa81b2	Consistently use "cpu_flags" as variable/parameter name for CPU flags	11 years ago
Anton Khirnov	006ec64877	lavr doxy: add version.h to the lavr group	12 years ago
Diego Biurrun	e445647b4f	avresample: Add av_cold attributes to init functions missing them	12 years ago
Diego Biurrun	b6649ab503	cosmetics: Remove unnecessary extern keywords from function declarations	12 years ago
Justin Ruggles	b2eea615c0	lavr: allow setting internal_sample_fmt option by string	12 years ago
Justin Ruggles	50f4337a2f	lavr: Add "resample_cutoff" option as a duplicate of "cutoff" Avoids an option name conflict with libavcodec, which is needed in order to work properly with avconv.	12 years ago
Justin Ruggles	157542ebc1	lavr: fix mixing matrix reduction when normalization is disabled In some cases when an input contributes fully to the corresponding output, other inputs may also contribute to the same output. This is the case, for example, for the default 5.1 to stereo downmix matrix without normalization.	12 years ago
Justin Ruggles	600b4c973f	lavr: fix matrix reduction for upmixing in certain cases Do not skip an output if the corresponding input contributes to other output channels.	12 years ago
Justin Ruggles	a3735bb92a	lavr: cosmetics: reindent	12 years ago
Justin Ruggles	1647da89dd	lavr: make sure that the mix function is reset even if no mixing will be done If the matrix reduction ends up with no mixing matrix needed, we need to still reset the mix function accordingly and log the info to the user.	12 years ago
Justin Ruggles	646831e697	lavr: print out the mix matrix in ff_audio_mix_set_matrix() This will print the new matrix if it is set after initialization.	12 years ago
Justin Ruggles	b90632d596	lavr: always reset mix function names and pointers in mix_function_init() CC: libav-stable@libav.org	12 years ago
Justin Ruggles	f07ef2d9c9	lavr: call mix_function_init() in ff_audio_mix_set_matrix() This is needed if a custom matrix is set by the user after opening the AVAudioResampleContext because the matrix channel count can change if different mixing coefficients are used. CC:libav-stable@libav.org	12 years ago
Justin Ruggles	a6a3164b13	x86: lavr: add SSE2/AVX dither_int_to_float()	12 years ago
Justin Ruggles	1fb8f6a44f	x86: lavr: add SSE2 quantize() for dithering	12 years ago
Justin Ruggles	7ff3fd7ae4	lavr: log channel conversion description for any-to-any functions	12 years ago
Justin Ruggles	4164b0e8d3	lavr: mix: reduce the mixing matrix when possible If the matrix results in an output channel not getting a contribution from any input channel and the corresponding input channel does not contribute to any outputs, we can skip the channel during mixing and silence it after mixing. If the matrix results in an input channel not contributing to any output channels and it is not in the output mix, or if the input channel only contributes fully to the same output channel, we can skip the channel during mixing. If the matrix results in an output channel only getting full contribution from the corresponding input channel and that input channel does not contribute to any other output channels, we can skip the channel during mixing.	12 years ago
Justin Ruggles	1ccf82cfd8	lavr: cosmetics: reindent	12 years ago
Justin Ruggles	074a00d192	lavr: add a public function for setting a custom channel map This allows reordering, duplication, and silencing of input channels.	12 years ago
Justin Ruggles	4d68269d58	lavr: typedef internal structs in internal.h Simplifies header dependencies by not including all other internal headers in internal.h.	12 years ago
Justin Ruggles	95d01c3f1c	x86: lavr: use the x86inc.asm automatic stack alignment in mixing functions CC:libav-stable@libav.org	12 years ago
Peter Meerwald	be6cde3ce8	lavr: fix missing " in header documentation Signed-off-by: Peter Meerwald <p.meerwald@bct-electronic.com> Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Diego Biurrun	511cf612ac	miscellaneous typo fixes	12 years ago
Justin Ruggles	b2fe6756e3	lavr: add option for dithering during sample format conversion to s16	12 years ago
Hendrik Leppkes	0cf3505930	avresample: use valid log context in mixing functions Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	12 years ago
Justin Ruggles	f1c2915ce1	lavr: remove automatic context close/open for resampling compensation It adds unnecessary complication for insignificant usability improvement. The user really should know if they'll need resampling compensation before opening the context. Note that only the documentation has changed. The current functionality will still work until the next major bump.	12 years ago
Justin Ruggles	f322b20735	lavr: only save/restore the mixing matrix if mixing is being done	12 years ago
Justin Ruggles	230acdde26	lavr: move AudioMix struct definition to audio_mix.c	12 years ago
Justin Ruggles	42b5688d5e	lavr: fix segfault due to overlooked change needed in `14758e3` Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	12 years ago
Justin Ruggles	14758e3211	lavr: temporarily store custom matrix in AVAudioResampleContext This allows AudioMix to be treated the same way as other conversion contexts and removes the requirement to allocate it at the same time as the AVAudioResampleContext. The current matrix get/set functions are split between the public interface and AudioMix private functions.	12 years ago
Justin Ruggles	887d4c05c9	lavr: clarify documentation for avresample_get/set_matrix()	12 years ago
Justin Ruggles	1d86aa8b0f	lavr: do not pass consumed samples as a parameter to ff_audio_resample() Since the resampler handles buffering of unconsumed samples internally, the caller does not need this information.	12 years ago
Justin Ruggles	d2f9f8e094	lavr: correct the documentation for the ff_audio_resample() return value	12 years ago
Justin Ruggles	7f534d11ed	lavr: do not pass sample count as a parameter to ff_audio_convert() It will always be the number of samples in the input buffer, so just use that directly instead of passing it as a separate parameter.	12 years ago
Ronald S. Bultje	7a9e65acee	x86: lavr: fix stack allocation for 7 and 8 channel downmixing on x86-32 Fixes crashes on Win32 and stack overruns on x86-32 in general.	12 years ago
Justin Ruggles	02738792c5	lavr: fix the decision for writing directly to the output buffer If there are any samples remaining in the output fifo from previous conversion calls, we have to output those samples first instead of doing direct output of the current samples.	12 years ago
Diego Biurrun	2b479bcab0	build: Drop AVX assembly ifdefs An assembler able to cope with AVX instructions is now required.	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	4b60fac419	x86: PALIGNR: port to cpuflags	12 years ago

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120 Commits (f8558780bbbbba05f4724772b27152f257cb7b05)