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| author | Glenn Kasten <gkasten@google.com> | 2014-03-21 17:53:17 -0700 |
|---|---|---|
| committer | Glenn Kasten <gkasten@google.com> | 2014-05-19 09:46:25 -0700 |
| commit | c56f3426099a3cf2d07ccff8886050c7fbce140f (patch) | |
| tree | 9e486a809f9d500a70fd26c4e1d2596ded190dbe /services/audioflinger/FastMixerState.h | |
| parent | 7c96d53a65085f42ac2b6d416cbc16fd36ed72ff (diff) | |
| download | frameworks_av-c56f3426099a3cf2d07ccff8886050c7fbce140f.zip frameworks_av-c56f3426099a3cf2d07ccff8886050c7fbce140f.tar.gz frameworks_av-c56f3426099a3cf2d07ccff8886050c7fbce140f.tar.bz2 | |
Pass stereo gains as packed minifloat
This will allow (eventually) a greater dynamic range for gains.
However there are still a few remaining places in effects and mixer
that will also need to be changed in order to get the full benefit.
Also fixes a minor bug: was not checking for NaN in AudioTrack C++.
Change-Id: I63bce9e82e0a61546d8ff475fb94bcb700d99c96
Diffstat (limited to 'services/audioflinger/FastMixerState.h')
| -rw-r--r-- | services/audioflinger/FastMixerState.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/services/audioflinger/FastMixerState.h b/services/audioflinger/FastMixerState.h index be1a376..e388fb3 100644 --- a/services/audioflinger/FastMixerState.h +++ b/services/audioflinger/FastMixerState.h @@ -17,6 +17,7 @@ #ifndef ANDROID_AUDIO_FAST_MIXER_STATE_H #define ANDROID_AUDIO_FAST_MIXER_STATE_H +#include <audio_utils/minifloat.h> #include <system/audio.h> #include <media/ExtendedAudioBufferProvider.h> #include <media/nbaio/NBAIO.h> @@ -29,9 +30,8 @@ struct FastMixerDumpState; class VolumeProvider { public: - // Return the track volume in U4_12 format: left in lower half, right in upper half. The - // provider implementation is responsible for validating that the return value is in range. - virtual uint32_t getVolumeLR() = 0; + // The provider implementation is responsible for validating that the return value is in range. + virtual gain_minifloat_packed_t getVolumeLR() = 0; protected: VolumeProvider() { } virtual ~VolumeProvider() { } |