ab518977ec
Remove unnecessary casts.
2020-01-30 21:25:50 +10:00
96f747d3f3
Don't allow format and channels to change for biquad and LPF filters.
...
Previously this would result in a glitch, however in the interest of
avoiding as many sources of glitching as possible, changing the format
and/or channel count of a biquad filter (and by extension, anything
derived from it, such as low-pass filters) will now result in an error.
2020-01-30 21:23:21 +10:00
9dbcc39c6e
Update biquad documentation.
2020-01-29 19:01:04 +10:00
c8b6fdaf2c
Use fixed point arithmetic with s16 biquads.
2020-01-29 18:50:50 +10:00
68b960215f
Update old comments.
2020-01-28 22:03:47 +10:00
b9c2509d78
Fix an overflow bug in the s16 biquad pipeline.
2020-01-28 21:54:15 +10:00
040dcf8d2c
Add documentation for low-pass filters.
2020-01-28 21:49:33 +10:00
b97c6fd35b
Remove the old direct form 1 biquad code.
2020-01-28 21:19:14 +10:00
8a44789840
Remove the unnecessary config member from ma_lpf.
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This is never actually used internally and saves a bit of memory.
2020-01-28 20:42:59 +10:00
42095a3e5a
Add documentation for biquads.
2020-01-28 20:41:41 +10:00
e525d457c9
Change biquad filter to use transposed direct form 2.
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This change reduces memory usage by removing half the number of delay
registers.
This commit also sets up some infrastructure for future work on a fixed
point implementation. Both the floating and fixed point implementations
will run on a 32-bit pipeline for now.
2020-01-28 20:14:55 +10:00
eedb7d3200
Add some documentation for channel conversion.
2020-01-27 20:17:01 +10:00
d37b23a729
Bug fixes to the new data converter.
2020-01-27 18:30:49 +10:00
5d3ed8687e
Bug fixes to the linear resampler.
...
This changes the the lpfCutoffFrequency config variable from a uint32
to a double. This is required because we simplify the sample rate
fraction which cant result in cases where the cutoff frequency is too
aggressively rounded down due to dividing tiny integers.
2020-01-27 18:12:25 +10:00
4f5eb2f8a1
Finish initial work on the new data converter.
2020-01-27 09:08:15 +10:00
b546607332
Begin work on integration of the new channel converter.
2020-01-26 19:01:43 +10:00
cbcf6f6cf3
Early work on new channel converter.
2020-01-26 18:37:10 +10:00
68dc797469
Add early work on new data converter.
2020-01-26 16:42:27 +10:00
d27678a277
Fix bug in ma_linear_resampler_get_required_input_frame_count().
2020-01-26 11:53:12 +10:00
4241b9f6ae
Add ma_linear_resampler_set_rate_ratio().
2020-01-26 11:28:33 +10:00
ed6ad79e24
Don't use generic seeking with the linear resampler.
2020-01-26 11:24:02 +10:00
f704b62767
Update resampling documentation.
2020-01-26 11:21:09 +10:00
01c41ed329
Add support for passing in NULL for input frames for linear resampler.
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This is equivalent to passing in zeroes.
2020-01-26 09:19:24 +10:00
b092720bf3
Integrate the new linear resampler.
2020-01-26 09:05:50 +10:00
13a5512879
Work in progress on the linear resampler.
2020-01-26 08:51:53 +10:00
811e438d1b
Add support for reinitialization of low-pass and biquad filters.
2020-01-20 19:01:42 +10:00
5d0f21448e
Remove MA_RESAMPLER_MIN_RATIO and MA_RESAMPLER_MAX_RATIO.
2020-01-19 21:29:43 +10:00
ad9d1e636b
Remove old experimental resampler code.
2020-01-19 21:26:02 +10:00
a9e7d6d8c9
Add some documentation for the new resampler.
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This commit also renames ma_resampler_process() to
ma_resampler_process_pcm_frames().
2020-01-19 21:23:57 +10:00
b770ea91d5
Add generic seeking to the resampler.
2020-01-19 19:18:43 +10:00
867e1ee7e4
SRC: Implement ma_speex_resampler_get_expected_output_frame_count().
2020-01-19 17:47:22 +10:00
f7ff9ee19e
SRC: Fix linear ma_resampler_get_expected_output_frame_count().
2020-01-19 17:24:20 +10:00
959885a303
SRC/Speex: Add support for querying required input frame counts.
2020-01-19 14:23:35 +10:00
3e8f261c6f
Minor restructuring in preparation for some Speex work.
2020-01-19 11:27:58 +10:00
6894d10d78
Warning fixes.
2020-01-19 11:18:22 +10:00
31086c5de9
Fix bugs in ma_resampler_get_required_input_frame_count().
2020-01-19 11:12:35 +10:00
5df3c0ce15
SRC: Add APIs for querying required input and expected output frames.
...
* ma_resampler_get_required_input_frame_count()
* ma_resampler_get_expected_output_frame_count()
These have not yet been implemented for the Speex backend.
This commit also adds an APIs for setting changing the rate:
* ma_resampler_set_rate()
* ma_resampler_set_rate_ratio()
2020-01-19 08:15:47 +10:00
8fabcc44d8
Add support for passing in null for the input buffer to the resampler.
2020-01-18 18:44:35 +10:00
6817dc84f8
Rearrange some function parameters.
2020-01-18 17:46:51 +10:00
f22ad84986
Add ma_resampler_uninit().
2020-01-18 17:37:55 +10:00
7b27cda74a
Add support for s16 format to biquad and low-pass filters.
2020-01-18 17:23:36 +10:00
705e54c69a
Add support for s16 format to the linear resampler.
2020-01-18 17:12:30 +10:00
1449edf49f
Add support for the Speex resampler.
2020-01-18 16:38:22 +10:00
7d37789418
Resampling and LPF work.
2020-01-18 14:36:12 +10:00
11d752ad78
Untested work in progress on the improved resampler.
2020-01-14 21:50:01 +10:00
2b526f6945
Add experimental code for biquad and low-pass filters.
2020-01-09 11:27:57 +10:00
e8e048c965
Random resampler WIP experiments.
2019-12-01 08:45:22 +10:00
98792caeaa
Resampling testing.
2019-10-19 07:40:46 +10:00
3e825396c1
Random resampler work.
2019-08-17 11:01:53 +10:00
d289e5cf6f
Sketch out an API idea for the new resampler.
2019-05-09 19:10:28 +10:00
David Reid