Wim Taymans
a489f9ddb3
audio-resampler: Rework make_taps
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Make it return a pointer to the generated taps. That way we can later
decide to actually cache it or not.
2016-03-28 13:25:51 +02:00
Wim Taymans
05eb109c0d
audio-resampler: handle filter length changes
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Update the buffer with history samples when the filter length changes
because of an update of the parameters or sample rates.
2016-03-28 13:25:51 +02:00
Wim Taymans
8dfb3ffb99
audio-resampler: fix samples_avail
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We only know the taps after we calculate them.
2016-03-28 13:25:51 +02:00
Wim Taymans
c8fc9d88a7
audio-resampler: work on dynamically changing the samplerate
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Calculate the new phase for the new sample rate.
Fix some docs.
2016-03-28 13:25:51 +02:00
Wim Taymans
4e48867097
audio-resampler: small cleanups
2016-03-28 13:25:51 +02:00
Wim Taymans
85c77659b9
audio-resampler: add fallback to mono function
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Remove stereo implementations. Implement fall back to mono functions
when the stereo function is missing.
2016-03-28 13:25:50 +02:00
Wim Taymans
2555317a71
audio-resampler: add float stereo SSE function
2016-03-28 13:25:50 +02:00
Wim Taymans
d348fbb9b9
audio-converter: make some optimized functions
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Make an optimized function that just calls the resampler when possible.
Optimize the resampler transform_size function a little.
2016-03-28 13:25:50 +02:00
Wim Taymans
23531bdc93
audio-resampler: remove mirror function
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We don't need to mirror the input, just assume 0 samples.
Always move the processed samples to the start of the buffer.
Add some G_LIKELY
2016-03-28 13:25:50 +02:00
Wim Taymans
71871c5048
audio-resampler: optimizations
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Improve int16 resampling by using pmaddwd
Use intrinsics to scale and pack int16 samples
Align the coefficients so that we can use aligned loads
Add padding to taps and samples so that we don't have to use partial
loads for the remainder of the loops.
Remove copy_n, we can reuse the plain copy function with some new
parameters.
Align and pad the sample array.
2016-03-28 13:25:50 +02:00
Wim Taymans
f55a67ca7c
audio-resampler: make pluggable optimized functions
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Add support for x86 specialized functions and select them at runtime.
2016-03-28 13:25:50 +02:00
Wim Taymans
819c4c26c7
audio-resampler: combine functions
2016-03-28 13:25:50 +02:00
Wim Taymans
de37491662
audio-converter: simplify API
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Remove the consumed/produced output fields from the resampler and
converter. Let the caler specify the right number of input/output
samples so we can be more optimal.
Use just one function to update the converter configuration.
Simplify some things internally.
Make it possible to use writable input as temp space in audioconvert.
2016-03-28 13:25:50 +02:00
Wim Taymans
1d9a793545
audio-converter: more work on resampling
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- Fix the resampler in the audio converter
- fix memory leaks
2016-03-28 13:13:59 +02:00
Wim Taymans
75d668e152
audio-converter: add resampler
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Add a resampler to the processing chain when needed.
port the audio resampler to the new audioconverter library
2016-03-28 13:13:59 +02:00
