Luca Barbato
0ac8ff618c
avresample: Reallocate the internal buffer to the correct size
...
Fixes the corner case in which the internal buffer size
is larger than input buffer provided and resizing it
before moving the left over samples would make it write
to now unallocated memory.
Bug-Id: 825
CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2015-04-28 23:51:51 +02:00
Vittorio Giovara
1a3eb042c7
Replace av_dlog with normal av_log at trace level
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This applies to every library where performance is not critical.
2015-04-19 12:41:59 +01:00
Peter Meerwald
12655c4804
libavresample: NEON optimized FIR audio resampling
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modelled after aarch64 code
on Cortex-A8, s16 and s32 code is about 2x faster,
float code about 7x faster
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Martin Storsjö <martin@martin.st>
2015-02-21 22:08:39 +02:00
Janne Grunau
a24a252709
aarch64: NEON optimized FIR audio resampling
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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
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Required for arch optimized resampling.
2014-04-24 18:28:26 +02:00
Anton Khirnov
21d8f4da91
resample: remove an unneeded context variable
2014-04-17 20:08:19 +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
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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
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
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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
Justin Ruggles
4d68269d58
lavr: typedef internal structs in internal.h
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Simplifies header dependencies by not including all other internal headers
in internal.h.
2013-01-07 21:49:05 -05:00
Justin Ruggles
f1c2915ce1
lavr: remove automatic context close/open for resampling compensation
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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.
2012-12-16 19:26:17 -05:00
Justin Ruggles
f322b20735
lavr: only save/restore the mixing matrix if mixing is being done
2012-12-16 19:26:17 -05:00
Justin Ruggles
1d86aa8b0f
lavr: do not pass consumed samples as a parameter to ff_audio_resample()
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Since the resampler handles buffering of unconsumed samples internally, the
caller does not need this information.
2012-11-27 16:49:19 -05:00
Martin Storsjö
1d9c2dc89a
Don't include common.h from avutil.h
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-15 22:32:06 +03:00
Diego Biurrun
3aa696e883
avresample: De-doxygenize some comments where Doxygen is not appropriate
2012-08-11 20:22:01 +02:00
Justin Ruggles
6410397600
lavr: resampling: add support for s32p, fltp, and dblp internal sample formats
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Based partially on implementation by Michael Niedermayer <michaelni@gmx.at> in
libswresample in FFmpeg. See commits:
7f1ae79d3824ab1abfb6
2012-07-08 15:22:11 -04:00
Justin Ruggles
372647aed0
lavr: resampling: add filter type and Kaiser window beta to AVOptions
2012-07-08 15:22:11 -04:00
Justin Ruggles
c8af852b97
Add libavresample
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This is a new library for audio sample format, channel layout, and sample rate
conversion.
2012-04-24 21:28:27 -04:00
