Wim Taymans
fb2b314660
audioconvert: interchange the resampler loops
...
Iterate the channels in the inner loop instead of the outer loop. This
makes it handle with 0 channels better but also does the more
complicated phase increment code only once for all channels. Also the
filters might stay in the cache for each channel now.
2024-10-30 13:31:24 +01:00
Wim Taymans
1ae4374ccf
Fix compilation with -Werror=float-conversion
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Better make the conversions explicit so that we don't get any surprises.
Fixes #4065
2024-06-18 12:17:56 +02:00
Dimitrios Katsaros
77f6c009c1
resample: use a float phase in update_rate
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My making the phase into a float, the resampler can do finer grained
adjustments, which should improve the stability of adaptive
resampling
2024-02-16 20:08:18 +00:00
Barnabás Pőcze
934ab3036e
treewide: use SPDX tags to specify copyright information
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SPDX tags make the licensing information easy to understand and clear,
and they are machine parseable.
See https://spdx.dev for more information.
2023-02-16 10:54:48 +00:00
Wim Taymans
4c3f56fca1
resample: cleanup the resampler core functions
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Move the increment function to a macro.
Don't use extra local variables, we can just as well call the resample
functipon with them.
2022-11-20 16:19:24 +01:00
Wim Taymans
51f4f1fb69
audioconvert: expose the selected function names
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And debug them.
2022-06-28 16:50:14 +02:00
Wim Taymans
0d1cef6b3a
audioconvert: move some things around
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To make it easier to add other implementations later.
Improve selection of resampler function
2020-04-03 18:03:42 +02:00
Wim Taymans
67a5dd35be
resample: add neon optimizations
2020-03-27 08:27:11 -04:00
Wim Taymans
7267a6bc34
resample: remove old debug variable
2020-02-13 20:11:39 +01:00
Wim Taymans
761119f640
resample: fix start position of new samples
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When we finished processing the history it might be possible that we
need to skip some samples from the input. Implement this by adding
a start offset for the samples in the buffer.
2020-02-13 16:43:06 +01:00
Wim Taymans
e04d58ee3a
Improve some debug
2019-10-02 18:02:07 +02:00
Wim Taymans
a232e67dd8
resample: completely fill resampler
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start with a completely filled resampler so that the first
input byte immediately gives an output sample. When then have
n_taps/2 leading (almost) 0 samples.
Also make the passthrough resampler act like the real resampler
by introducing an n_taps/2 delay.
2019-09-05 13:13:20 +02:00
Wim Taymans
595dc0ab5b
resample: fix phase calculation
2019-07-09 16:54:52 +02:00
Wim Taymans
0154e6eaac
small cleanups
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resample: remove unused index variable
2019-07-08 18:23:22 +02:00
Wim Taymans
636c02d38b
audioconvert: fix native variable rate resampler
2019-04-30 15:14:05 +02:00
Wim Taymans
dc01b294a2
resample: return the number of consumed samples
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We need to return the number of consumed samples, even when we don't
start from the first sample in the buffer.
Add some more logging.
2019-04-02 23:06:46 +02:00
Wim Taymans
d47353c0e6
resample-native: small tweaks
2019-03-29 12:08:45 +01:00
Wim Taymans
d260cb19be
audioconvert: compile c version separately
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Also compile the c versions in a separate module with their own
flags.
2019-03-28 21:07:53 +01:00
Wim Taymans
e7ef13e310
audioconvert: add avx optimizations
2019-03-28 16:45:57 +01:00
Wim Taymans
c8d3d475bb
audioconvert: handle more optimizations
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Compile an optimized library for the given CPU with the right flags,
then link it with the main library.
2019-03-27 17:58:48 +01:00
Wim Taymans
eaffb25cc2
resample-native: optimize equal input and output sample rates
2019-03-27 13:38:34 +01:00
Wim Taymans
4fafd10a89
resample-native: cleanups
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Add some comments, reorganize for better readability
More alignment of filter and history
Add some more test
2019-03-27 11:23:52 +01:00
Wim Taymans
555fe2f9f5
resample-native: implement variable rate
2019-03-26 17:25:14 +01:00
Wim Taymans
9c8913437b
audioconvert: add simple and faster resampler
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Add a sinc based resampler that, unlike speex, avoids memcpy and
works directly on the source data. It also allows for ssse3
optimizations and aligned loads. It will later switch to table
interpolation when doing variable rate.
2019-03-26 12:58:26 +01:00
