| cd04484f4837b8ca0041d118286ab6a98e84fc75 |
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07-Aug-2014 |
Andy Hung <hunga@google.com> |
Extend downsampling ratios greater than 2:1
Also improve robustness to choice of sampling rate or buffer size
such that increasing either by 10x does not cause overflow.
Bug: 12979141
Bug: 15933066
Change-Id: If7989bd745d1bee3bdf811b8b7c978543ccafb65
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| a4daf0b4f934b800a49f199fb8c09409391c8fc0 |
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29-Jul-2014 |
Glenn Kasten <gkasten@google.com> |
Fix build warnings
Change-Id: Ife5e40264f43fb3ccb40830228701003fe106bf5
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 5e58b0abe5b6c8f5bd96a8f78bbeeeb4d3892020 |
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24-Jun-2014 |
Andy Hung <hunga@google.com> |
Add floating point volume handling to AudioMixer
Use floating point volume in AudioMixer mixing when floating
point input is used with the new mixer engine.
AudioResampler is updated to take floating point volume to match.
Both legacy integer and floating point mixer engines work.
For now, integer volume is used when the new mixer engine
runs in integer input mode, for backward compatibility with
the legacy mixer. The new mixer engine will generally run in
floating point input mode. When the legacy path is removed,
the integer volumes will be removed.
Change-Id: I79e80c292ae7c8b8bdd0aa371a1b2c3a1b618290
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 3348e36c51e91e78020bcc6578eda83d97c31bec |
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07-Jul-2014 |
Andy Hung <hunga@google.com> |
Replace int bitDepth with audio_format_t in Resampler
Remove mBitDepth from class (not used).
Replace with audio_format_t in factory method to distinguish
between float and pcm 16-bit.
Change-Id: I166860796c68285077ef4458d8758d19b82523f9
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 075abae2a954bf3edf18ad1705c2c0f188454ae0 |
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10-Apr-2014 |
Andy Hung <hunga@google.com> |
Add and enable multichannel for audio resampler
Change-Id: I2b86fb73d70abc4c456f7567270a888086b301d4
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 717007429a50c02d2acc704a8c1ebbe6760a2c22 |
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03-Jun-2014 |
Andy Hung <hunga@google.com> |
Update resampler to fetch exactly the frames needed
This avoids unnecessary overfetching/releasing, which
could cause problems with the upstream AudioBufferProvider.
A one input sample delay is placed on the stream compared
with the previous implementation.
This change only affects the Dynamic resampler.
Change-Id: Ic7fcff130e0081b4724cfb5a00dc8e8b4a8b1af3
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 411cb8e45442d16d983a38722c7c7bce487bde6b |
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27-May-2014 |
Andy Hung <hunga@google.com> |
Update dynamic resampler buffer fetching
Make the criteria tight for fetching to avoid storing
excessive frame data internal to the resampler.
This should reduce jitter in frame delivery computation.
Bug: 14962343
Change-Id: I7adaf714d11c272696ccdbf218bda994c7217477
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 771386e6e6e79697e2d839ef0f25a242946ba1e5 |
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09-Apr-2014 |
Andy Hung <hunga@google.com> |
Add and enable floating point option for audio resampler
Can be tested with test-resample.
Change-Id: I8339846d7c647444b6025d33cfa145d5d3658121
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| d549139155b20d7cbf6a4326133e06def465ef54 |
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09-Apr-2014 |
Andy Hung <hunga@google.com> |
Add floating point to audio resample processing
Add template type parameters for input, output data type.
Minor change in non-NEON mono channel handling.
Minor fixup on comments.
Change-Id: I7dc9972d130913718b62f32c02d31f99c06682f2
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| b78d804b1090a430a126a6c356037ded96ffd91a |
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25-Feb-2014 |
Andy Hung <hunga@google.com> |
Merge "Fix 1:1 dynamic resampler rate setting"
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| 1af34085e18c4d5ab297232f167a71e89ff7f65d |
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20-Feb-2014 |
Andy Hung <hunga@google.com> |
Fix 1:1 dynamic resampler rate setting
Change-Id: Id69e98ebaaca8dd8c976eb823f1cc1024b0eddf5
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 24781fff62a4cf7279d3dac83c33e2ac612712ba |
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19-Feb-2014 |
Andy Hung <hunga@google.com> |
Fix resampler to allow output of single frame
Bug: 13073201
Change-Id: If7818a3389a191a37277bbd8e96a59ef8ce68509
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
|
| a3bb9a3a25b58669d75da4f73764ac4c2bf34158 |
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11-Feb-2014 |
Andy Hung <hunga@google.com> |
Proper adjustment of filterlength for downsampling
Bug: 12963040
Change-Id: I772b8efd3f7eae6d075994b210dd0168f5365f4d
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 83be2560d9396b3bd32919123bd67a783e6aaf7c |
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03-Feb-2014 |
Andy Hung <hunga@google.com> |
Fix dynamic resampling for non-NEON devices
The stride by 16 code template automatically falls back to stride by 2
(as the NEON code template override does not occur).
As such the stride by 2 (in the switch) was removed as it was unnecessary.
Removing the if() causes the fall back to happen properly for non-NEON
compilation.
Change-Id: Ia7aec6ae1d88eb54377e56e2fb57f2ae5b74cf1b
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
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| 6582f2b14a21e630654c5522ef9ad64e80d5058d |
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03-Jan-2014 |
Andy Hung <hunga@google.com> |
Improve dynamic audio resampler filter generation
Improve dynamic audio resampler filter generation speed by 2x.
The resulting filters should be the same (excepting roundoff).
Also added check for upsampling sample rate changes to share
previously generated filters.
Modify the profiling to improve output format and sampling result
reliability.
Change-Id: I9aa6b914fd552a63f79dd4a95945df2f8275772a
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
|
| 86eae0e5931103e040ac2cdd023ef5db252e09f6 |
|
09-Dec-2013 |
Andy Hung <hunga@google.com> |
Audio resampler update to add S16 filters
This does not affect the existing resamplers.
New resampler accessed through additional quality settings:
DYN_LOW_QUALITY = 5
DYN_MED_QUALITY = 6
DYN_HIGH_QUALITY = 7
Change-Id: Iebbd31871e808a4a6dee3f3abfd7e9dcf77c48e1
Signed-off-by: Andy Hung <hunga@google.com>
/frameworks/av/services/audioflinger/AudioResamplerDyn.cpp
|