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-rw-r--r--media/libmedia/AudioRecord.cpp555
1 files changed, 0 insertions, 555 deletions
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
deleted file mode 100644
index e833c85..0000000
--- a/media/libmedia/AudioRecord.cpp
+++ /dev/null
@@ -1,555 +0,0 @@
-/*
-**
-** Copyright 2008, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-** http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "AudioRecord"
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <sched.h>
-#include <sys/resource.h>
-
-#include <private/media/AudioTrackShared.h>
-
-#include <media/AudioSystem.h>
-#include <media/AudioRecord.h>
-
-#include <utils/IServiceManager.h>
-#include <utils/Log.h>
-#include <utils/MemoryDealer.h>
-#include <utils/Parcel.h>
-#include <utils/IPCThreadState.h>
-#include <utils/Timers.h>
-#include <cutils/atomic.h>
-
-#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
-#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
-
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-AudioRecord::AudioRecord()
- : mStatus(NO_INIT)
-{
-}
-
-AudioRecord::AudioRecord(
- int streamType,
- uint32_t sampleRate,
- int format,
- int channelCount,
- int frameCount,
- uint32_t flags,
- callback_t cbf,
- void* user,
- int notificationFrames)
- : mStatus(NO_INIT)
-{
- mStatus = set(streamType, sampleRate, format, channelCount,
- frameCount, flags, cbf, user, notificationFrames);
-}
-
-AudioRecord::~AudioRecord()
-{
- if (mStatus == NO_ERROR) {
- // Make sure that callback function exits in the case where
- // it is looping on buffer empty condition in obtainBuffer().
- // Otherwise the callback thread will never exit.
- stop();
- if (mClientRecordThread != 0) {
- mCblk->cv.signal();
- mClientRecordThread->requestExitAndWait();
- mClientRecordThread.clear();
- }
- mAudioRecord.clear();
- IPCThreadState::self()->flushCommands();
- }
-}
-
-status_t AudioRecord::set(
- int streamType,
- uint32_t sampleRate,
- int format,
- int channelCount,
- int frameCount,
- uint32_t flags,
- callback_t cbf,
- void* user,
- int notificationFrames,
- bool threadCanCallJava)
-{
-
- LOGV("set(): sampleRate %d, channelCount %d, frameCount %d",sampleRate, channelCount, frameCount);
- if (mAudioFlinger != 0) {
- return INVALID_OPERATION;
- }
-
- const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
- if (audioFlinger == 0) {
- return NO_INIT;
- }
-
- if (streamType == DEFAULT_INPUT) {
- streamType = MIC_INPUT;
- }
-
- if (sampleRate == 0) {
- sampleRate = DEFAULT_SAMPLE_RATE;
- }
- // these below should probably come from the audioFlinger too...
- if (format == 0) {
- format = AudioSystem::PCM_16_BIT;
- }
- if (channelCount == 0) {
- channelCount = 1;
- }
-
- // validate parameters
- if (format != AudioSystem::PCM_16_BIT) {
- return BAD_VALUE;
- }
- if (channelCount != 1 && channelCount != 2) {
- return BAD_VALUE;
- }
-
- // TODO: Get input frame count from hardware.
- int minFrameCount = 1024*2;
-
- if (frameCount == 0) {
- frameCount = minFrameCount;
- } else if (frameCount < minFrameCount) {
- return BAD_VALUE;
- }
-
- if (notificationFrames == 0) {
- notificationFrames = frameCount/2;
- }
-
- // open record channel
- status_t status;
- sp<IAudioRecord> record = audioFlinger->openRecord(getpid(), streamType,
- sampleRate, format, channelCount, frameCount, flags, &status);
- if (record == 0) {
- LOGE("AudioFlinger could not create record track, status: %d", status);
- return status;
- }
- sp<IMemory> cblk = record->getCblk();
- if (cblk == 0) {
- return NO_INIT;
- }
- if (cbf != 0) {
- mClientRecordThread = new ClientRecordThread(*this, threadCanCallJava);
- if (mClientRecordThread == 0) {
- return NO_INIT;
- }
- }
-
- mStatus = NO_ERROR;
-
- mAudioFlinger = audioFlinger;
- mAudioRecord = record;
- mCblkMemory = cblk;
- mCblk = static_cast<audio_track_cblk_t*>(cblk->pointer());
- mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t);
- mCblk->out = 0;
- mSampleRate = sampleRate;
- mFormat = format;
- // Update buffer size in case it has been limited by AudioFlinger during track creation
- mFrameCount = mCblk->frameCount;
- mChannelCount = channelCount;
- mActive = 0;
- mCbf = cbf;
- mNotificationFrames = notificationFrames;
- mRemainingFrames = notificationFrames;
- mUserData = user;
- // TODO: add audio hardware input latency here
- mLatency = (1000*mFrameCount) / mSampleRate;
- mMarkerPosition = 0;
- mNewPosition = 0;
- mUpdatePeriod = 0;
-
- return NO_ERROR;
-}
-
-status_t AudioRecord::initCheck() const
-{
- return mStatus;
-}
-
-// -------------------------------------------------------------------------
-
-uint32_t AudioRecord::latency() const
-{
- return mLatency;
-}
-
-uint32_t AudioRecord::sampleRate() const
-{
- return mSampleRate;
-}
-
-int AudioRecord::format() const
-{
- return mFormat;
-}
-
-int AudioRecord::channelCount() const
-{
- return mChannelCount;
-}
-
-uint32_t AudioRecord::frameCount() const
-{
- return mFrameCount;
-}
-
-int AudioRecord::frameSize() const
-{
- return channelCount()*((format() == AudioSystem::PCM_8_BIT) ? sizeof(uint8_t) : sizeof(int16_t));
-}
-
-// -------------------------------------------------------------------------
-
-status_t AudioRecord::start()
-{
- status_t ret = NO_ERROR;
- sp<ClientRecordThread> t = mClientRecordThread;
-
- LOGV("start");
-
- if (t != 0) {
- if (t->exitPending()) {
- if (t->requestExitAndWait() == WOULD_BLOCK) {
- LOGE("AudioRecord::start called from thread");
- return WOULD_BLOCK;
- }
- }
- t->mLock.lock();
- }
-
- if (android_atomic_or(1, &mActive) == 0) {
- mNewPosition = mCblk->user + mUpdatePeriod;
- mCblk->bufferTimeoutMs = MAX_RUN_TIMEOUT_MS;
- mCblk->waitTimeMs = 0;
- if (t != 0) {
- t->run("ClientRecordThread", THREAD_PRIORITY_AUDIO_CLIENT);
- } else {
- setpriority(PRIO_PROCESS, 0, THREAD_PRIORITY_AUDIO_CLIENT);
- }
- ret = mAudioRecord->start();
- }
-
- if (t != 0) {
- t->mLock.unlock();
- }
-
- return ret;
-}
-
-status_t AudioRecord::stop()
-{
- sp<ClientRecordThread> t = mClientRecordThread;
-
- LOGV("stop");
-
- if (t != 0) {
- t->mLock.lock();
- }
-
- if (android_atomic_and(~1, &mActive) == 1) {
- mAudioRecord->stop();
- if (t != 0) {
- t->requestExit();
- } else {
- setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_NORMAL);
- }
- }
-
- if (t != 0) {
- t->mLock.unlock();
- }
-
- return NO_ERROR;
-}
-
-bool AudioRecord::stopped() const
-{
- return !mActive;
-}
-
-status_t AudioRecord::setMarkerPosition(uint32_t marker)
-{
- if (mCbf == 0) return INVALID_OPERATION;
-
- mMarkerPosition = marker;
-
- return NO_ERROR;
-}
-
-status_t AudioRecord::getMarkerPosition(uint32_t *marker)
-{
- if (marker == 0) return BAD_VALUE;
-
- *marker = mMarkerPosition;
-
- return NO_ERROR;
-}
-
-status_t AudioRecord::setPositionUpdatePeriod(uint32_t updatePeriod)
-{
- if (mCbf == 0) return INVALID_OPERATION;
-
- uint32_t curPosition;
- getPosition(&curPosition);
- mNewPosition = curPosition + updatePeriod;
- mUpdatePeriod = updatePeriod;
-
- return NO_ERROR;
-}
-
-status_t AudioRecord::getPositionUpdatePeriod(uint32_t *updatePeriod)
-{
- if (updatePeriod == 0) return BAD_VALUE;
-
- *updatePeriod = mUpdatePeriod;
-
- return NO_ERROR;
-}
-
-status_t AudioRecord::getPosition(uint32_t *position)
-{
- if (position == 0) return BAD_VALUE;
-
- *position = mCblk->user;
-
- return NO_ERROR;
-}
-
-
-// -------------------------------------------------------------------------
-
-status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, int32_t waitCount)
-{
- int active;
- int timeout = 0;
- status_t result;
- audio_track_cblk_t* cblk = mCblk;
- uint32_t framesReq = audioBuffer->frameCount;
-
- audioBuffer->frameCount = 0;
- audioBuffer->size = 0;
-
- uint32_t framesReady = cblk->framesReady();
-
- if (framesReady == 0) {
- Mutex::Autolock _l(cblk->lock);
- goto start_loop_here;
- while (framesReady == 0) {
- active = mActive;
- if (UNLIKELY(!active))
- return NO_MORE_BUFFERS;
- if (UNLIKELY(!waitCount))
- return WOULD_BLOCK;
- timeout = 0;
- result = cblk->cv.waitRelative(cblk->lock, milliseconds(WAIT_PERIOD_MS));
- if (__builtin_expect(result!=NO_ERROR, false)) {
- cblk->waitTimeMs += WAIT_PERIOD_MS;
- if (cblk->waitTimeMs >= cblk->bufferTimeoutMs) {
- LOGW( "obtainBuffer timed out (is the CPU pegged?) "
- "user=%08x, server=%08x", cblk->user, cblk->server);
- timeout = 1;
- cblk->waitTimeMs = 0;
- }
- if (--waitCount == 0) {
- return TIMED_OUT;
- }
- }
- // read the server count again
- start_loop_here:
- framesReady = cblk->framesReady();
- }
- }
-
- LOGW_IF(timeout,
- "*** SERIOUS WARNING *** obtainBuffer() timed out "
- "but didn't need to be locked. We recovered, but "
- "this shouldn't happen (user=%08x, server=%08x)", cblk->user, cblk->server);
-
- cblk->waitTimeMs = 0;
-
- if (framesReq > framesReady) {
- framesReq = framesReady;
- }
-
- uint32_t u = cblk->user;
- uint32_t bufferEnd = cblk->userBase + cblk->frameCount;
-
- if (u + framesReq > bufferEnd) {
- framesReq = bufferEnd - u;
- }
-
- audioBuffer->flags = 0;
- audioBuffer->channelCount= mChannelCount;
- audioBuffer->format = mFormat;
- audioBuffer->frameCount = framesReq;
- audioBuffer->size = framesReq*mChannelCount*sizeof(int16_t);
- audioBuffer->raw = (int8_t*)cblk->buffer(u);
- active = mActive;
- return active ? status_t(NO_ERROR) : status_t(STOPPED);
-}
-
-void AudioRecord::releaseBuffer(Buffer* audioBuffer)
-{
- audio_track_cblk_t* cblk = mCblk;
- cblk->stepUser(audioBuffer->frameCount);
-}
-
-// -------------------------------------------------------------------------
-
-ssize_t AudioRecord::read(void* buffer, size_t userSize)
-{
- ssize_t read = 0;
- Buffer audioBuffer;
- int8_t *dst = static_cast<int8_t*>(buffer);
-
- if (ssize_t(userSize) < 0) {
- // sanity-check. user is most-likely passing an error code.
- LOGE("AudioRecord::read(buffer=%p, size=%u (%d)",
- buffer, userSize, userSize);
- return BAD_VALUE;
- }
-
- LOGV("read size: %d", userSize);
-
- do {
-
- audioBuffer.frameCount = userSize/mChannelCount/sizeof(int16_t);
-
- // Calling obtainBuffer() with a negative wait count causes
- // an (almost) infinite wait time.
- status_t err = obtainBuffer(&audioBuffer, -1);
- if (err < 0) {
- // out of buffers, return #bytes written
- if (err == status_t(NO_MORE_BUFFERS))
- break;
- return ssize_t(err);
- }
-
- size_t bytesRead = audioBuffer.size;
- memcpy(dst, audioBuffer.i8, bytesRead);
-
- dst += bytesRead;
- userSize -= bytesRead;
- read += bytesRead;
-
- releaseBuffer(&audioBuffer);
- } while (userSize);
-
- return read;
-}
-
-// -------------------------------------------------------------------------
-
-bool AudioRecord::processAudioBuffer(const sp<ClientRecordThread>& thread)
-{
- Buffer audioBuffer;
- uint32_t frames = mRemainingFrames;
- size_t readSize;
-
- // Manage marker callback
- if (mMarkerPosition > 0) {
- if (mCblk->user >= mMarkerPosition) {
- mCbf(EVENT_MARKER, mUserData, (void *)&mMarkerPosition);
- mMarkerPosition = 0;
- }
- }
-
- // Manage new position callback
- if (mUpdatePeriod > 0) {
- while (mCblk->user >= mNewPosition) {
- mCbf(EVENT_NEW_POS, mUserData, (void *)&mNewPosition);
- mNewPosition += mUpdatePeriod;
- }
- }
-
- do {
- audioBuffer.frameCount = frames;
- // Calling obtainBuffer() with a wait count of 1
- // limits wait time to WAIT_PERIOD_MS. This prevents from being
- // stuck here not being able to handle timed events (position, markers).
- status_t err = obtainBuffer(&audioBuffer, 1);
- if (err < NO_ERROR) {
- if (err != TIMED_OUT) {
- LOGE("Error obtaining an audio buffer, giving up.");
- return false;
- }
- break;
- }
- if (err == status_t(STOPPED)) return false;
-
- size_t reqSize = audioBuffer.size;
- mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer);
- readSize = audioBuffer.size;
-
- // Sanity check on returned size
- if (ssize_t(readSize) <= 0) break;
- if (readSize > reqSize) readSize = reqSize;
-
- audioBuffer.size = readSize;
- audioBuffer.frameCount = readSize/mChannelCount/sizeof(int16_t);
- frames -= audioBuffer.frameCount;
-
- releaseBuffer(&audioBuffer);
-
- } while (frames);
-
-
- // Manage overrun callback
- if (mActive && (mCblk->framesAvailable_l() == 0)) {
- LOGV("Overrun user: %x, server: %x, flowControlFlag %d", mCblk->user, mCblk->server, mCblk->flowControlFlag);
- if (mCblk->flowControlFlag == 0) {
- mCbf(EVENT_OVERRUN, mUserData, 0);
- mCblk->flowControlFlag = 1;
- }
- }
-
- if (frames == 0) {
- mRemainingFrames = mNotificationFrames;
- } else {
- mRemainingFrames = frames;
- }
- return true;
-}
-
-// =========================================================================
-
-AudioRecord::ClientRecordThread::ClientRecordThread(AudioRecord& receiver, bool bCanCallJava)
- : Thread(bCanCallJava), mReceiver(receiver)
-{
-}
-
-bool AudioRecord::ClientRecordThread::threadLoop()
-{
- return mReceiver.processAudioBuffer(this);
-}
-
-// -------------------------------------------------------------------------
-
-}; // namespace android
-
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