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'
...
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
...
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
...
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
...
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
96d74e77eb
pcm/Dsd{16,32}: move the conversion loop to a separate function
2019-06-17 22:51:01 +02:00
28e07e900f
pcm/Export: convert the DSD bools to an enum
...
These options are exclusive.
2019-06-17 22:35:00 +02:00
32380d1db0
pcm/Dop: stash odd frames away for the next call
...
First part of the "real" fix for
https://github.com/MusicPlayerDaemon/MPD/issues/469
2019-06-17 22:18:44 +02:00
c9f1354e4d
pcm/RestBuffer: new utility class
2019-06-17 22:18:41 +02:00
e3f9e96eef
pcm/Dop: convert public function to stateful class
...
Preparing to add more state.
2019-06-17 22:16:29 +02:00
8f9b3cbf0e
pcm/Dop: add separate dsd_buffer for DSD_U16/32
...
The dop_buffer will be moved out soon.
2019-06-17 22:11:23 +02:00
458a1beed9
AudioFormat: move MAX_CHANNELS to pcm/ChannelDefs.hxx
...
Reduce header dependencies.
2019-06-17 22:11:08 +02:00
33f5e03e80
Merge branch 'v0.21.x'
2019-06-17 22:06:54 +02:00
d478bdda8e
pcm/Export: document that Export() may return an empty buffer
2019-06-17 21:07:29 +02:00
e87f0ca771
pcm/Pcm*: drop more "Pcm" prefixes from source file names
2019-06-17 11:17:48 +02:00
a139279575
Copyright year 2019
2019-06-17 11:17:30 +02:00
9fcd33cc8d
pcm/Dop: move the conversion loop to separate function
2019-06-16 12:23:48 +02:00
96ff6b9b8b
pcm/Dop: remove redundant inline keywords
2019-06-16 12:23:38 +02:00
fd5e74dbd0
pcm/Pcm{Dop,Export}: drop "Pcm" prefix
2019-06-16 12:11:44 +02:00
b64571f4a5
pcm/Export: update API documentation
2019-06-16 11:52:57 +02:00
6addc9d6e0
pcm/PcmConvert: remove unused attribute "dest_format"
2019-04-04 21:06:28 +02:00
e78d825059
pcm/PcmConvert: eliminate Open() and Close()
...
Let the constructor and destructor do this. This means that all users
have to be converted to allocate PcmConvert dynamically.
2019-04-04 21:01:08 +02:00
f2cacaf6b6
AudioFormat, pcm/Dsd*: remove redundant inline keywords from constexpr functions
2019-03-08 10:29:03 +01:00
c176d94598
system/ByteOrder: move to util/
2019-03-08 10:21:10 +01:00
ce49d99c2f
check.h: remove obsolete header
...
Since we switched from autotools to Meson in commit
94592c1406
2018-11-19 16:33:49 +01:00
f5c9071494
*: copyright year 2018
2018-10-31 17:54:59 +01:00
c97469283c
pcm: build dsd2pcm only if -Dtest=true
2018-10-30 13:31:43 +01:00
804ccddf7e
pcm/Clamp: convert to constexpr
2018-10-30 00:08:25 +01:00
Max Kellermann