}
}
+ if (mActiveTrack == 0) {
+ continue;
+ }
lockEffectChains_l(effectChains);
}
- // thread mutex is now unlocked
+ // thread mutex is now unlocked and mActiveTrack != 0
// FIXME RecordThread::start assigns to mActiveTrack under lock, but we read without lock
- if (mActiveTrack != 0) {
- // FIXME RecordThread::stop assigns to mState under lock, but we read without lock
- if (mActiveTrack->mState != TrackBase::ACTIVE &&
- mActiveTrack->mState != TrackBase::RESUMING) {
- unlockEffectChains(effectChains);
- usleep(kRecordThreadSleepUs);
- continue;
- }
- for (size_t i = 0; i < effectChains.size(); i ++) {
- // thread mutex is not locked, but effect chain is locked
- effectChains[i]->process_l();
- }
+ // FIXME RecordThread::stop assigns to mState under lock, but we read without lock
+ if (mActiveTrack->mState != TrackBase::ACTIVE &&
+ mActiveTrack->mState != TrackBase::RESUMING) {
+ unlockEffectChains(effectChains);
+ usleep(kRecordThreadSleepUs);
+ continue;
+ }
+ for (size_t i = 0; i < effectChains.size(); i ++) {
+ // thread mutex is not locked, but effect chain is locked
+ effectChains[i]->process_l();
+ }
- buffer.frameCount = mFrameCount;
- status_t status = mActiveTrack->getNextBuffer(&buffer);
- if (status == NO_ERROR) {
- readOnce = true;
- size_t framesOut = buffer.frameCount;
- if (mResampler == NULL) {
- // no resampling
- while (framesOut) {
- size_t framesIn = mFrameCount - mRsmpInIndex;
- if (framesIn > 0) {
- int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize;
- int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) *
- mActiveTrack->mFrameSize;
- if (framesIn > framesOut) {
- framesIn = framesOut;
- }
- mRsmpInIndex += framesIn;
- framesOut -= framesIn;
- if (mChannelCount == mReqChannelCount) {
- memcpy(dst, src, framesIn * mFrameSize);
- } else {
- if (mChannelCount == 1) {
- upmix_to_stereo_i16_from_mono_i16((int16_t *)dst,
- (int16_t *)src, framesIn);
- } else {
- downmix_to_mono_i16_from_stereo_i16((int16_t *)dst,
- (int16_t *)src, framesIn);
- }
- }
+ buffer.frameCount = mFrameCount;
+ status_t status = mActiveTrack->getNextBuffer(&buffer);
+ if (status == NO_ERROR) {
+ readOnce = true;
+ size_t framesOut = buffer.frameCount;
+ if (mResampler == NULL) {
+ // no resampling
+ while (framesOut) {
+ size_t framesIn = mFrameCount - mRsmpInIndex;
+ if (framesIn > 0) {
+ int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize;
+ int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) *
+ mActiveTrack->mFrameSize;
+ if (framesIn > framesOut) {
+ framesIn = framesOut;
}
- if (framesOut > 0 && mFrameCount == mRsmpInIndex) {
- void *readInto;
- if (framesOut == mFrameCount && mChannelCount == mReqChannelCount) {
- readInto = buffer.raw;
- framesOut = 0;
+ mRsmpInIndex += framesIn;
+ framesOut -= framesIn;
+ if (mChannelCount == mReqChannelCount) {
+ memcpy(dst, src, framesIn * mFrameSize);
+ } else {
+ if (mChannelCount == 1) {
+ upmix_to_stereo_i16_from_mono_i16((int16_t *)dst,
+ (int16_t *)src, framesIn);
} else {
- readInto = mRsmpInBuffer;
- mRsmpInIndex = 0;
+ downmix_to_mono_i16_from_stereo_i16((int16_t *)dst,
+ (int16_t *)src, framesIn);
}
- mBytesRead = mInput->stream->read(mInput->stream, readInto,
- mBufferSize);
- if (mBytesRead <= 0) {
- // FIXME read mState without lock
- if ((mBytesRead < 0) && (mActiveTrack->mState == TrackBase::ACTIVE))
- {
- ALOGE("Error reading audio input");
- // Force input into standby so that it tries to
- // recover at next read attempt
- inputStandBy();
- // FIXME sleep with effect chains locked
- usleep(kRecordThreadSleepUs);
- }
- mRsmpInIndex = mFrameCount;
- framesOut = 0;
- buffer.frameCount = 0;
+ }
+ }
+ if (framesOut > 0 && mFrameCount == mRsmpInIndex) {
+ void *readInto;
+ if (framesOut == mFrameCount && mChannelCount == mReqChannelCount) {
+ readInto = buffer.raw;
+ framesOut = 0;
+ } else {
+ readInto = mRsmpInBuffer;
+ mRsmpInIndex = 0;
+ }
+ mBytesRead = mInput->stream->read(mInput->stream, readInto,
+ mBufferSize);
+ if (mBytesRead <= 0) {
+ // FIXME read mState without lock
+ if ((mBytesRead < 0) && (mActiveTrack->mState == TrackBase::ACTIVE))
+ {
+ ALOGE("Error reading audio input");
+ // Force input into standby so that it tries to
+ // recover at next read attempt
+ inputStandBy();
+ // FIXME sleep with effect chains locked
+ usleep(kRecordThreadSleepUs);
}
+ mRsmpInIndex = mFrameCount;
+ framesOut = 0;
+ buffer.frameCount = 0;
+ }
#ifdef TEE_SINK
- else if (mTeeSink != 0) {
- (void) mTeeSink->write(readInto,
- mBytesRead >> Format_frameBitShift(mTeeSink->format()));
- }
-#endif
+ else if (mTeeSink != 0) {
+ (void) mTeeSink->write(readInto,
+ mBytesRead >> Format_frameBitShift(mTeeSink->format()));
}
+#endif
}
+ }
+ } else {
+ // resampling
+
+ // resampler accumulates, but we only have one source track
+ memset(mRsmpOutBuffer, 0, framesOut * FCC_2 * sizeof(int32_t));
+ // alter output frame count as if we were expecting stereo samples
+ if (mChannelCount == 1 && mReqChannelCount == 1) {
+ framesOut >>= 1;
+ }
+ mResampler->resample(mRsmpOutBuffer, framesOut,
+ this /* AudioBufferProvider* */);
+ // ditherAndClamp() works as long as all buffers returned by
+ // mActiveTrack->getNextBuffer() are 32 bit aligned which should be always true.
+ if (mChannelCount == 2 && mReqChannelCount == 1) {
+ // temporarily type pun mRsmpOutBuffer from Q19.12 to int16_t
+ ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut);
+ // the resampler always outputs stereo samples:
+ // do post stereo to mono conversion
+ downmix_to_mono_i16_from_stereo_i16(buffer.i16, (int16_t *)mRsmpOutBuffer,
+ framesOut);
} else {
- // resampling
+ ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut);
+ }
+ // now done with mRsmpOutBuffer
- // resampler accumulates, but we only have one source track
- memset(mRsmpOutBuffer, 0, framesOut * FCC_2 * sizeof(int32_t));
- // alter output frame count as if we were expecting stereo samples
- if (mChannelCount == 1 && mReqChannelCount == 1) {
- framesOut >>= 1;
- }
- mResampler->resample(mRsmpOutBuffer, framesOut,
- this /* AudioBufferProvider* */);
- // ditherAndClamp() works as long as all buffers returned by
- // mActiveTrack->getNextBuffer() are 32 bit aligned which should be always true.
- if (mChannelCount == 2 && mReqChannelCount == 1) {
- // temporarily type pun mRsmpOutBuffer from Q19.12 to int16_t
- ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut);
- // the resampler always outputs stereo samples:
- // do post stereo to mono conversion
- downmix_to_mono_i16_from_stereo_i16(buffer.i16, (int16_t *)mRsmpOutBuffer,
- framesOut);
- } else {
- ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut);
+ }
+ if (mFramestoDrop == 0) {
+ mActiveTrack->releaseBuffer(&buffer);
+ } else {
+ if (mFramestoDrop > 0) {
+ mFramestoDrop -= buffer.frameCount;
+ if (mFramestoDrop <= 0) {
+ clearSyncStartEvent();
}
- // now done with mRsmpOutBuffer
-
- }
- if (mFramestoDrop == 0) {
- mActiveTrack->releaseBuffer(&buffer);
} else {
- if (mFramestoDrop > 0) {
- mFramestoDrop -= buffer.frameCount;
- if (mFramestoDrop <= 0) {
- clearSyncStartEvent();
- }
- } else {
- mFramestoDrop += buffer.frameCount;
- if (mFramestoDrop >= 0 || mSyncStartEvent == 0 ||
- mSyncStartEvent->isCancelled()) {
- ALOGW("Synced record %s, session %d, trigger session %d",
- (mFramestoDrop >= 0) ? "timed out" : "cancelled",
- mActiveTrack->sessionId(),
- (mSyncStartEvent != 0) ? mSyncStartEvent->triggerSession() : 0);
- clearSyncStartEvent();
- }
+ mFramestoDrop += buffer.frameCount;
+ if (mFramestoDrop >= 0 || mSyncStartEvent == 0 ||
+ mSyncStartEvent->isCancelled()) {
+ ALOGW("Synced record %s, session %d, trigger session %d",
+ (mFramestoDrop >= 0) ? "timed out" : "cancelled",
+ mActiveTrack->sessionId(),
+ (mSyncStartEvent != 0) ? mSyncStartEvent->triggerSession() : 0);
+ clearSyncStartEvent();
}
}
- mActiveTrack->clearOverflow();
}
- // client isn't retrieving buffers fast enough
- else {
- if (!mActiveTrack->setOverflow()) {
- nsecs_t now = systemTime();
- if ((now - lastWarning) > kWarningThrottleNs) {
- ALOGW("RecordThread: buffer overflow");
- lastWarning = now;
- }
+ mActiveTrack->clearOverflow();
+ }
+ // client isn't retrieving buffers fast enough
+ else {
+ if (!mActiveTrack->setOverflow()) {
+ nsecs_t now = systemTime();
+ if ((now - lastWarning) > kWarningThrottleNs) {
+ ALOGW("RecordThread: buffer overflow");
+ lastWarning = now;
}
- // Release the processor for a while before asking for a new buffer.
- // This will give the application more chance to read from the buffer and
- // clear the overflow.
- // FIXME sleep with effect chains locked
- usleep(kRecordThreadSleepUs);
}
+ // Release the processor for a while before asking for a new buffer.
+ // This will give the application more chance to read from the buffer and
+ // clear the overflow.
+ // FIXME sleep with effect chains locked
+ usleep(kRecordThreadSleepUs);
}
+
// enable changes in effect chain
unlockEffectChains(effectChains);
// effectChains doesn't need to be cleared, since it is cleared by destructor at scope end
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