diff options
| -rw-r--r-- | services/audioflinger/AudioFlinger.cpp | 6 | ||||
| -rw-r--r-- | services/audioflinger/AudioMixer.cpp | 13 | ||||
| -rw-r--r-- | services/audioflinger/AudioMixer.h | 2 | ||||
| -rw-r--r-- | services/audioflinger/AudioResampler.cpp | 6 | ||||
| -rw-r--r-- | services/audioflinger/AudioResampler.h | 2 |
5 files changed, 28 insertions, 1 deletions
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp index 704da72..a07ebfc 100644 --- a/services/audioflinger/AudioFlinger.cpp +++ b/services/audioflinger/AudioFlinger.cpp @@ -1629,6 +1629,7 @@ uint32_t AudioFlinger::MixerThread::prepareTracks_l(const SortedVector< wp<Track track->mState = TrackBase::ACTIVE; param = AudioMixer::RAMP_VOLUME; } + mAudioMixer->setParameter(AudioMixer::RESAMPLE, AudioMixer::RESET, NULL); } else if (cblk->server != 0) { // If the track is stopped before the first frame was mixed, // do not apply ramp @@ -3855,9 +3856,12 @@ status_t AudioFlinger::RecordThread::start(RecordThread::RecordTrack* recordTrac mActiveTrack.clear(); return status; } - mActiveTrack->mState = TrackBase::RESUMING; mRsmpInIndex = mFrameCount; mBytesRead = 0; + if (mResampler != NULL) { + mResampler->reset(); + } + mActiveTrack->mState = TrackBase::RESUMING; // signal thread to start LOGV("Signal record thread"); mWaitWorkCV.signal(); diff --git a/services/audioflinger/AudioMixer.cpp b/services/audioflinger/AudioMixer.cpp index 433f1f7..50dcda7 100644 --- a/services/audioflinger/AudioMixer.cpp +++ b/services/audioflinger/AudioMixer.cpp @@ -220,6 +220,12 @@ status_t AudioMixer::setParameter(int target, int name, void *value) return NO_ERROR; } } + if (name == RESET) { + track_t& track = mState.tracks[ mActiveTrack ]; + track.resetResampler(); + invalidateState(1<<mActiveTrack); + return NO_ERROR; + } break; case RAMP_VOLUME: case VOLUME: @@ -289,6 +295,13 @@ bool AudioMixer::track_t::doesResample() const return resampler != 0; } +void AudioMixer::track_t::resetResampler() +{ + if (resampler != 0) { + resampler->reset(); + } +} + inline void AudioMixer::track_t::adjustVolumeRamp(bool aux) { diff --git a/services/audioflinger/AudioMixer.h b/services/audioflinger/AudioMixer.h index aee3e17..88408a7 100644 --- a/services/audioflinger/AudioMixer.h +++ b/services/audioflinger/AudioMixer.h @@ -67,6 +67,7 @@ public: AUX_BUFFER = 0x4003, // for TARGET RESAMPLE SAMPLE_RATE = 0x4100, + RESET = 0x4101, // for TARGET VOLUME (8 channels max) VOLUME0 = 0x4200, VOLUME1 = 0x4201, @@ -163,6 +164,7 @@ private: bool setResampler(uint32_t sampleRate, uint32_t devSampleRate); bool doesResample() const; + void resetResampler(); void adjustVolumeRamp(bool aux); }; diff --git a/services/audioflinger/AudioResampler.cpp b/services/audioflinger/AudioResampler.cpp index 5dabacb..5c3b43f 100644 --- a/services/audioflinger/AudioResampler.cpp +++ b/services/audioflinger/AudioResampler.cpp @@ -148,6 +148,12 @@ void AudioResampler::setVolume(int16_t left, int16_t right) { mVolume[1] = right; } +void AudioResampler::reset() { + mInputIndex = 0; + mPhaseFraction = 0; + mBuffer.frameCount = 0; +} + // ---------------------------------------------------------------------------- void AudioResamplerOrder1::resample(int32_t* out, size_t outFrameCount, diff --git a/services/audioflinger/AudioResampler.h b/services/audioflinger/AudioResampler.h index 2dfac76..9f06c1c 100644 --- a/services/audioflinger/AudioResampler.h +++ b/services/audioflinger/AudioResampler.h @@ -53,6 +53,8 @@ public: virtual void resample(int32_t* out, size_t outFrameCount, AudioBufferProvider* provider) = 0; + virtual void reset(); + protected: // number of bits for phase fraction - 30 bits allows nearly 2x downsampling static const int kNumPhaseBits = 30; |