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142 Commits

Author SHA1 Message Date
Luca Barbato
b2d4565422 avresample: Add avresample_get_out_samples 
Utility function to get the upper bound on the number of samples the
resampler would output.
 2014-05-28 22:04:56 +02:00
Janne Grunau
449511740f build: handle library dependencies in configure 
Instead of setting FFLIBS in each library Makefile configure
exports FFLIBS-$library in config.mak.
 2014-05-13 20:02:01 +02:00
Janne Grunau
a24a252709 aarch64: NEON optimized FIR audio resampling 
Optimized for the default filter length 16.

30% faster opus silk decoding.
 2014-04-24 18:28:26 +02:00
Janne Grunau
cae8df7875 lavr: define ResampleContext in resample.h 
Required for arch optimized resampling.
 2014-04-24 18:28:26 +02:00
Janne Grunau
f4d5a2cc35 aarch64: NEON float to s16 audio conversion 2014-04-22 19:35:41 +02:00
Anton Khirnov
21d8f4da91 resample: remove an unneeded context variable 2014-04-17 20:08:19 +02:00
Anton Khirnov
ac976ed91e lavr: allocate the resampling buffer with a positive size 
This fixes cases where very few input samples (fewer than needed for one
output sample) are passed to lavr at the beginning.
CC:libav-stable@libav.org
 2014-04-13 11:21:20 +02:00
Anton Khirnov
f7c5fd8151 resample: implement flushing 2014-04-13 11:15:45 +02:00
Anton Khirnov
254c95cdd1 resample: split linear into its own function 2014-04-11 16:34:02 +02:00
Anton Khirnov
be394968c8 resample: add initial padding explicitly 
This simplifies the code, since we do not have to deal with a possibly
negative source index anymore.
 2014-04-11 16:33:46 +02:00
Anton Khirnov
eed752d61d resample: drop useless abs() 
negative sample_index is handled in the block above.
 2014-04-11 16:28:11 +02:00
Anton Khirnov
3c84f6b5d2 resample: reindent 2014-04-11 16:27:22 +02:00
Anton Khirnov
f20892eb67 resample: split the nearest neighbour path into a separate function pointer 2014-04-11 16:26:36 +02:00
Anton Khirnov
b9dea23766 resample: fix avresample_get_delay() return value 
The correct "next" input sample is not the first sample of the
resampling buffer, but the center sample of the filter_length-sized
block at the beginning.

CC:libav-stable@libav.org
 2014-04-11 16:21:25 +02:00
Diego Biurrun
01c5779f56 x86: Drop some unnecessary YASM ifdefs 
Dead code elimination is enough to avoid undefined references in these cases.
 2014-04-04 19:08:05 +02:00
Diego Biurrun
aba70bb538 Add missing headers to make template files compile (more) standalone 2014-03-26 04:31:27 -07:00
Anton Khirnov
1db03a6864 lavr: return an error if a avresample_open() is called on an open context 2014-02-22 20:53:09 +01:00
Anton Khirnov
7e86c27b4e lavr: add a function for checking whether AVAudioResampleContext is open 2014-02-22 20:52:36 +01:00
Tim Walker
76a75c523c lavr: mix front center channel as indicated in the ATSC A/52 specification. 
When mixing 3 front channels into 2, the center channel is mixed into left and right with the center mix level, not -3dB.
 2014-02-08 13:42:55 +01:00
Martin Storsjö
5bcbb516f2 arm: Add X() around all references to extern symbols 
Don't rely on the fact that an unprefixed label currently exists.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2014-02-07 15:13:58 +02:00
Janne Grunau
fe96769bed aarch64: port neon clobber test from arm 2014-01-15 12:31:07 +01:00
Martin Storsjö
99e2012523 x86/arm: Add clobber tests to libavresample 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2014-01-13 14:13:27 +02:00
Anton Khirnov
cc976a75df audio_mix: print (SKIP) instead of 0.0 for matrix columns removed along with output zeroing 2014-01-03 16:43:25 +01:00
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
 2014-01-03 16:42:46 +01:00
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.
 2014-01-03 16:42:23 +01:00
Diego Biurrun
b83d1ee3b4 avutil: Move library version related macros to version.h 
This is a more sensible place for these macros.
 2013-12-26 19:05:22 +01:00
Diego Biurrun
8f8bc92365 Add missing #includes for *INT64_MAX and *INT64_C 2013-11-23 21:55:52 +01:00
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
 2013-10-27 15:07:10 -04:00
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>
 2013-10-14 12:39:29 +01:00
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>
 2013-10-14 12:36:11 +01:00
Anton Khirnov
df6737a55f audio_mix: fix channel order in mix_1_to_2_fltp_flt_c 
CC:libav-stable@libav.org
 2013-10-12 15:06:55 +02:00
Diego Biurrun
b5a138652f Give less generic names to global library option arrays 2013-08-02 19:19:02 +02:00
Diego Biurrun
03039f4c8c miscellaneous typo fixes 2013-07-25 19:43:32 +02:00
Diego Biurrun
3ac7fa81b2 Consistently use "cpu_flags" as variable/parameter name for CPU flags 2013-07-18 00:31:35 +02:00
Anton Khirnov
006ec64877 lavr doxy: add version.h to the lavr group 2013-05-17 20:27:48 +02:00
Diego Biurrun
e445647b4f avresample: Add av_cold attributes to init functions missing them 2013-05-04 21:10:05 +02:00
Diego Biurrun
b6649ab503 cosmetics: Remove unnecessary extern keywords from function declarations 2013-03-27 14:21:45 +01:00
Justin Ruggles
b2eea615c0 lavr: allow setting internal_sample_fmt option by string 2013-02-23 17:07:54 -05:00
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.
 2013-02-23 17:07:54 -05:00
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.
 2013-02-12 13:41:13 -05:00
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.
 2013-02-12 13:41:13 -05:00
Justin Ruggles
a3735bb92a lavr: cosmetics: reindent 2013-02-12 13:41:13 -05:00
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.
 2013-02-12 13:41:09 -05:00
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.
 2013-02-12 13:35:04 -05:00
Justin Ruggles
b90632d596 lavr: always reset mix function names and pointers in mix_function_init() 
CC: libav-stable@libav.org
 2013-01-17 19:27:01 -05:00
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
 2013-01-17 19:27:01 -05:00
Justin Ruggles
a6a3164b13 x86: lavr: add SSE2/AVX dither_int_to_float() 2013-01-08 14:52:43 -05:00
Justin Ruggles
1fb8f6a44f x86: lavr: add SSE2 quantize() for dithering 2013-01-08 14:52:43 -05:00
Justin Ruggles
7ff3fd7ae4 lavr: log channel conversion description for any-to-any functions 2013-01-07 21:49:07 -05:00
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.
 2013-01-07 21:49:06 -05:00