c84bae739a
pcm/Convert: add option to enable the integer-only dsd2pcm implementation
2020-01-17 16:37:09 +01:00
925b5954c3
pcm/Dsd2Pcm: add integer-only implementation
2020-01-17 16:17:32 +01:00
235b6980b8
pcm/Dsd2Pcm: add optimized stereo version
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This code path is 2% faster.
2020-01-14 23:38:46 +01:00
ee46150329
pcm/Dsd2Pcm: add class MultiDsd2Pcm
2020-01-14 23:29:03 +01:00
79c585bf03
pcm/PcmDsd: use size_t
2020-01-14 23:28:34 +01:00
becd81f771
pcm/PcmDsd: manage Dsd2Pcm instances, not pointers
2020-01-14 23:26:34 +01:00
2073a2c1b0
pcm/Dsd2Pcm: remove unused "lsbf" flag
2020-01-14 23:20:45 +01:00
3f3104348e
pcm/Dsd2Pcm: add "restrict" attribute
2020-01-14 23:20:36 +01:00
4038d8527f
pcm/Dsd2Pcm: eliminate "& 0xff"
2020-01-14 22:56:28 +01:00
3565f0c8ce
pcm/Dsd2Pcm: move code to TranslateSample()
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10% speedup. Strange, huh?
2020-01-14 22:51:20 +01:00
9647b2cb01
pcm/Dsd2Pcm: move code to ApplySample()
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For some reason, this speeds up the library by 2%.
2020-01-14 22:43:11 +01:00
2d5bf53240
pcm/Dsd2Pcm: use sizet_t instead of int
2020-01-14 22:40:54 +01:00
a65f7b1006
pcm/Dsd2Pcm: use std::fill_n()
2020-01-14 22:39:54 +01:00
bc5b647053
pcm/Dsd2Pcm: use sizet_t instead of unsigned
2020-01-14 22:37:30 +01:00
1708ae3e3c
pcm/Dsd2Pcm: use uint8_t instead of unsigned char
2020-01-14 22:36:50 +01:00
6bfbc5d320
pcm/Dsd2Pcm: move code to CalcOutputSample()
2020-01-14 22:25:54 +01:00
e7483bc5bc
pcm/Dsd2Pcm: make variables more local
2020-01-14 22:21:32 +01:00
b911ec1a29
pcm/Dsd2Pcm: convert to class
2020-01-14 22:16:02 +01:00
ca2633bf26
pcm/Dsd2Pcm: remove unused function dsd2pcm_clone()
2020-01-14 22:15:05 +01:00
566ac171f5
pcm/Dsd2Pcm: generate ctables at compile time
2020-01-14 22:11:12 +01:00
4d95402e4e
pcm/Dsd2Pcm: move formula to CalculateCtableValue()
2020-01-14 22:11:12 +01:00
4d102c4770
pcm/Dsd2Pcm: convert parameter to bool
2020-01-14 22:11:12 +01:00
91bc41ea20
pcm/Dsd2Pcm: add noexcept and remove extern
2020-01-14 22:11:12 +01:00
e565dcf18c
pcm/dsd2pcm: convert to C++
2020-01-14 22:05:58 +01:00
5a87fc7c26
pcm/dsd2pcm: remove unused sources
2020-01-14 22:05:27 +01:00
44d7a1d8d2
pcm/Traits: drop "_type" from type names
2020-01-03 16:01:44 +01:00
683d5848f4
Merge tag 'v0.21.17'
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release v0.21.17
2019-12-16 23:44:20 +01:00
dc3c0c8866
pcm/Convert, ...: add missing include for std::runtime_error
2019-12-16 22:52:50 +01:00
f357f743a3
pcm/Volume: use transform_n()
2019-08-10 12:05:37 +02:00
91e565d92e
pcm/PcmFormat: use transform_n()
2019-08-10 12:05:35 +02:00
af99f9fc90
pcm/Volume: convert S16 to S24 to preserve quality and reduce noise
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Applying software volume to S16 samples means several bits of
precision are lost; at 25% volume, two bits are lost. Additionally,
dithering adds some noise.
The problem gets worse when you apply the software volume code twice:
for the software mixer volume, and again for the replay gain. This
loses some more precision and adds even more dithering noise, which
can become audible (see
https://github.com/MusicPlayerDaemon/MPD/issues/542 ).
By converting everything to 24 bit, we need to shift only two bits to
the right instead of ten, losing nearly no precision, and dithering is
not needed. Even if the output device is unable to play S24 directly,
we can convert back to S16 with only one stage of dithering.
Closes https://github.com/MusicPlayerDaemon/MPD/issues/542
2019-07-30 20:03:37 +02:00
326c6ae615
pcm/Volume: add variable "dest_size"
2019-07-05 21:01:09 +02:00
5fa7610264
pcm/Volume: Open() returns output sample format
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Prepare for a new mode which may convert to a different sample format
when applying volume, to reduce dithering.
2019-07-05 19:03:00 +02:00
1c757f8c1c
pcm/Volume: allow any exception
2019-07-05 19:01:46 +02:00
06fbbe2d7b
pcm/Volume: calculate PCM_VOLUME_1
2019-07-05 18:26:26 +02:00
21d91cb1d1
pcm/Volume: fix API documentation
2019-07-05 18:26:14 +02:00
d663f81420
include cleanups (powered by iwyu)
2019-07-05 09:59:58 +02:00
beed004b10
pcm/Export: add GetSilence()
2019-06-26 16:04:46 +02:00
34c6337887
pcm/Export: add GetInputBlockSize(), GetOutputBlockSize()
2019-06-26 15:49:08 +02:00
2093e53641
pcm/Export: add GetInputFrameSize()
2019-06-26 15:48:18 +02:00
2f243f2295
pcm/Export: rename GetFrameSize() to GetOutputFrameSize()
2019-06-26 15:46:49 +02:00
e69fd0300a
pcm/Export: rename CalcSourceSize() to CalcInputSize()
2019-06-26 15:46:05 +02:00
f43cafbf7d
pcm/Export: eliminate the AudioFormat parameter from GetFrameSize()
2019-06-26 15:42:47 +02:00
53faf77d20
pcm/Export: use the "channels" attribute in GetFrameSize()
2019-06-26 15:41:07 +02:00
bf574dcb0a
pcm/RestBuffer: make internal methods private
2019-06-26 14:44:20 +02:00
72b8f33272
pcm/Export: split src_sample_format from alsa_channel_order
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Combining these two in one single value saves some memory, but is
complicated and we may need the src_sample_format for new features
later.
2019-06-18 12:19:40 +02:00
a17f420d6b
pcm/Export: update API documentation
2019-06-18 12:19:40 +02:00
bf26adf555
pcm/Dsd{16,32}: stash odd frames away for the next call
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Similar to commit 32380d1db0https://github.com/MusicPlayerDaemon/MPD/issues/469
2019-06-18 11:19:27 +02:00
0cc94fe30c
pcm/Dsd{16,32}: convert public function to stateful class
2019-06-18 10:58:55 +02:00
d5d5705213
pcm/Export: update API documentation
2019-06-18 10:58:26 +02:00
Max Kellermann