diff options
Diffstat (limited to 'media/libmedia/AudioRecord.cpp')
| -rw-r--r-- | media/libmedia/AudioRecord.cpp | 234 |
1 files changed, 189 insertions, 45 deletions
diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp index 07ca14f..011b31f 100644 --- a/media/libmedia/AudioRecord.cpp +++ b/media/libmedia/AudioRecord.cpp @@ -65,9 +65,10 @@ status_t AudioRecord::getMinFrameCount( // --------------------------------------------------------------------------- -AudioRecord::AudioRecord() - : mStatus(NO_INIT), mSessionId(AUDIO_SESSION_ALLOCATE), - mPreviousPriority(ANDROID_PRIORITY_NORMAL), mPreviousSchedulingGroup(SP_DEFAULT) +AudioRecord::AudioRecord(const String16 &opPackageName) + : mStatus(NO_INIT), mOpPackageName(opPackageName), mSessionId(AUDIO_SESSION_ALLOCATE), + mPreviousPriority(ANDROID_PRIORITY_NORMAL), mPreviousSchedulingGroup(SP_DEFAULT), + mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE) { } @@ -76,6 +77,7 @@ AudioRecord::AudioRecord( uint32_t sampleRate, audio_format_t format, audio_channel_mask_t channelMask, + const String16& opPackageName, size_t frameCount, callback_t cbf, void* user, @@ -83,15 +85,20 @@ AudioRecord::AudioRecord( int sessionId, transfer_type transferType, audio_input_flags_t flags, + int uid, + pid_t pid, const audio_attributes_t* pAttributes) - : mStatus(NO_INIT), mSessionId(AUDIO_SESSION_ALLOCATE), + : mStatus(NO_INIT), + mOpPackageName(opPackageName), + mSessionId(AUDIO_SESSION_ALLOCATE), mPreviousPriority(ANDROID_PRIORITY_NORMAL), mPreviousSchedulingGroup(SP_DEFAULT), - mProxy(NULL) + mProxy(NULL), + mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE) { mStatus = set(inputSource, sampleRate, format, channelMask, frameCount, cbf, user, notificationFrames, false /*threadCanCallJava*/, sessionId, transferType, flags, - pAttributes); + uid, pid, pAttributes); } AudioRecord::~AudioRecord() @@ -107,12 +114,18 @@ AudioRecord::~AudioRecord() mAudioRecordThread->requestExitAndWait(); mAudioRecordThread.clear(); } + // No lock here: worst case we remove a NULL callback which will be a nop + if (mDeviceCallback != 0 && mInput != AUDIO_IO_HANDLE_NONE) { + AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput); + } IInterface::asBinder(mAudioRecord)->unlinkToDeath(mDeathNotifier, this); mAudioRecord.clear(); mCblkMemory.clear(); mBufferMemory.clear(); IPCThreadState::self()->flushCommands(); - AudioSystem::releaseAudioSessionId(mSessionId, -1); + ALOGV("~AudioRecord, releasing session id %d", + mSessionId); + AudioSystem::releaseAudioSessionId(mSessionId, -1 /*pid*/); } } @@ -129,12 +142,15 @@ status_t AudioRecord::set( int sessionId, transfer_type transferType, audio_input_flags_t flags, + int uid, + pid_t pid, const audio_attributes_t* pAttributes) { ALOGV("set(): inputSource %d, sampleRate %u, format %#x, channelMask %#x, frameCount %zu, " - "notificationFrames %u, sessionId %d, transferType %d, flags %#x", + "notificationFrames %u, sessionId %d, transferType %d, flags %#x, opPackageName %s " + "uid %d, pid %d", inputSource, sampleRate, format, channelMask, frameCount, notificationFrames, - sessionId, transferType, flags); + sessionId, transferType, flags, String8(mOpPackageName).string(), uid, pid); switch (transferType) { case TRANSFER_DEFAULT: @@ -159,8 +175,6 @@ status_t AudioRecord::set( } mTransfer = transferType; - AutoMutex lock(mLock); - // invariant that mAudioRecord != 0 is true only after set() returns successfully if (mAudioRecord != 0) { ALOGE("Track already in use"); @@ -189,13 +203,9 @@ status_t AudioRecord::set( } // validate parameters - if (!audio_is_valid_format(format)) { - ALOGE("Invalid format %#x", format); - return BAD_VALUE; - } - // Temporary restriction: AudioFlinger currently supports 16-bit PCM only - if (format != AUDIO_FORMAT_PCM_16_BIT) { - ALOGE("Format %#x is not supported", format); + // AudioFlinger capture only supports linear PCM + if (!audio_is_valid_format(format) || !audio_is_linear_pcm(format)) { + ALOGE("Format %#x is not linear pcm", format); return BAD_VALUE; } mFormat = format; @@ -227,16 +237,30 @@ status_t AudioRecord::set( } ALOGV("set(): mSessionId %d", mSessionId); + int callingpid = IPCThreadState::self()->getCallingPid(); + int mypid = getpid(); + if (uid == -1 || (callingpid != mypid)) { + mClientUid = IPCThreadState::self()->getCallingUid(); + } else { + mClientUid = uid; + } + if (pid == -1 || (callingpid != mypid)) { + mClientPid = callingpid; + } else { + mClientPid = pid; + } + mFlags = flags; mCbf = cbf; if (cbf != NULL) { mAudioRecordThread = new AudioRecordThread(*this, threadCanCallJava); mAudioRecordThread->run("AudioRecord", ANDROID_PRIORITY_AUDIO); + // thread begins in paused state, and will not reference us until start() } // create the IAudioRecord - status_t status = openRecord_l(0 /*epoch*/); + status_t status = openRecord_l(0 /*epoch*/, mOpPackageName); if (status != NO_ERROR) { if (mAudioRecordThread != 0) { @@ -284,9 +308,10 @@ status_t AudioRecord::start(AudioSystem::sync_event_t event, int triggerSession) mNewPosition = mProxy->getPosition() + mUpdatePeriod; int32_t flags = android_atomic_acquire_load(&mCblk->mFlags); + mActive = true; + status_t status = NO_ERROR; if (!(flags & CBLK_INVALID)) { - ALOGV("mAudioRecord->start()"); status = mAudioRecord->start(event, triggerSession); if (status == DEAD_OBJECT) { flags |= CBLK_INVALID; @@ -297,9 +322,9 @@ status_t AudioRecord::start(AudioSystem::sync_event_t event, int triggerSession) } if (status != NO_ERROR) { + mActive = false; ALOGE("start() status %d", status); } else { - mActive = true; sp<AudioRecordThread> t = mAudioRecordThread; if (t != 0) { t->resume(); @@ -352,6 +377,10 @@ status_t AudioRecord::setMarkerPosition(uint32_t marker) mMarkerPosition = marker; mMarkerReached = false; + sp<AudioRecordThread> t = mAudioRecordThread; + if (t != 0) { + t->wake(); + } return NO_ERROR; } @@ -378,6 +407,10 @@ status_t AudioRecord::setPositionUpdatePeriod(uint32_t updatePeriod) mNewPosition = mProxy->getPosition() + updatePeriod; mUpdatePeriod = updatePeriod; + sp<AudioRecordThread> t = mAudioRecordThread; + if (t != 0) { + t->wake(); + } return NO_ERROR; } @@ -408,15 +441,42 @@ status_t AudioRecord::getPosition(uint32_t *position) const uint32_t AudioRecord::getInputFramesLost() const { // no need to check mActive, because if inactive this will return 0, which is what we want - return AudioSystem::getInputFramesLost(getInput()); + return AudioSystem::getInputFramesLost(getInputPrivate()); +} + +// ---- Explicit Routing --------------------------------------------------- +status_t AudioRecord::setInputDevice(audio_port_handle_t deviceId) { + AutoMutex lock(mLock); + if (mSelectedDeviceId != deviceId) { + mSelectedDeviceId = deviceId; + // stop capture so that audio policy manager does not reject the new instance start request + // as only one capture can be active at a time. + if (mAudioRecord != 0 && mActive) { + mAudioRecord->stop(); + } + android_atomic_or(CBLK_INVALID, &mCblk->mFlags); + } + return NO_ERROR; +} + +audio_port_handle_t AudioRecord::getInputDevice() { + AutoMutex lock(mLock); + return mSelectedDeviceId; +} + +audio_port_handle_t AudioRecord::getRoutedDeviceId() { + AutoMutex lock(mLock); + if (mInput == AUDIO_IO_HANDLE_NONE) { + return AUDIO_PORT_HANDLE_NONE; + } + return AudioSystem::getDeviceIdForIo(mInput); } // ------------------------------------------------------------------------- // must be called with mLock held -status_t AudioRecord::openRecord_l(size_t epoch) +status_t AudioRecord::openRecord_l(size_t epoch, const String16& opPackageName) { - status_t status; const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger(); if (audioFlinger == 0) { ALOGE("Could not get audioflinger"); @@ -431,12 +491,16 @@ status_t AudioRecord::openRecord_l(size_t epoch) } // Client can only express a preference for FAST. Server will perform additional tests. - if ((mFlags & AUDIO_INPUT_FLAG_FAST) && !( - // use case: callback transfer mode - (mTransfer == TRANSFER_CALLBACK) && + if ((mFlags & AUDIO_INPUT_FLAG_FAST) && !(( + // either of these use cases: + // use case 1: callback transfer mode + (mTransfer == TRANSFER_CALLBACK) || + // use case 2: obtain/release mode + (mTransfer == TRANSFER_OBTAIN)) && // matching sample rate (mSampleRate == afSampleRate))) { - ALOGW("AUDIO_INPUT_FLAG_FAST denied by client"); + ALOGW("AUDIO_INPUT_FLAG_FAST denied by client; transfer %d, track %u Hz, primary %u Hz", + mTransfer, mSampleRate, afSampleRate); // once denied, do not request again if IAudioRecord is re-created mFlags = (audio_input_flags_t) (mFlags & ~AUDIO_INPUT_FLAG_FAST); } @@ -451,9 +515,16 @@ status_t AudioRecord::openRecord_l(size_t epoch) } } + if (mDeviceCallback != 0 && mInput != AUDIO_IO_HANDLE_NONE) { + AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput); + } + audio_io_handle_t input; - status = AudioSystem::getInputForAttr(&mAttributes, &input, (audio_session_t)mSessionId, - mSampleRate, mFormat, mChannelMask, mFlags); + status_t status = AudioSystem::getInputForAttr(&mAttributes, &input, + (audio_session_t)mSessionId, + IPCThreadState::self()->getCallingUid(), + mSampleRate, mFormat, mChannelMask, + mFlags, mSelectedDeviceId); if (status != NO_ERROR) { ALOGE("Could not get audio input for record source %d, sample rate %u, format %#x, " @@ -476,11 +547,14 @@ status_t AudioRecord::openRecord_l(size_t epoch) sp<IMemory> iMem; // for cblk sp<IMemory> bufferMem; sp<IAudioRecord> record = audioFlinger->openRecord(input, - mSampleRate, mFormat, + mSampleRate, + mFormat, mChannelMask, + opPackageName, &temp, &trackFlags, tid, + mClientUid, &mSessionId, ¬ificationFrames, iMem, @@ -577,6 +651,10 @@ status_t AudioRecord::openRecord_l(size_t epoch) mDeathNotifier = new DeathNotifier(this); IInterface::asBinder(mAudioRecord)->linkToDeath(mDeathNotifier, this); + if (mDeviceCallback != 0) { + AudioSystem::addAudioDeviceCallback(mDeviceCallback, mInput); + } + return NO_ERROR; } @@ -588,15 +666,21 @@ release: return status; } -status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, int32_t waitCount) +status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, int32_t waitCount, size_t *nonContig) { if (audioBuffer == NULL) { + if (nonContig != NULL) { + *nonContig = 0; + } return BAD_VALUE; } if (mTransfer != TRANSFER_OBTAIN) { audioBuffer->frameCount = 0; audioBuffer->size = 0; audioBuffer->raw = NULL; + if (nonContig != NULL) { + *nonContig = 0; + } return INVALID_OPERATION; } @@ -615,7 +699,7 @@ status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, int32_t waitCount) ALOGE("%s invalid waitCount %d", __func__, waitCount); requested = NULL; } - return obtainBuffer(audioBuffer, requested); + return obtainBuffer(audioBuffer, requested, NULL /*elapsed*/, nonContig); } status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, const struct timespec *requested, @@ -684,9 +768,9 @@ status_t AudioRecord::obtainBuffer(Buffer* audioBuffer, const struct timespec *r return status; } -void AudioRecord::releaseBuffer(Buffer* audioBuffer) +void AudioRecord::releaseBuffer(const Buffer* audioBuffer) { - // all TRANSFER_* are valid + // FIXME add error checking on mode, by adding an internal version size_t stepCount = audioBuffer->size / mFrameSize; if (stepCount == 0) { @@ -704,7 +788,7 @@ void AudioRecord::releaseBuffer(Buffer* audioBuffer) // the server does not automatically disable recorder on overrun, so no need to restart } -audio_io_handle_t AudioRecord::getInput() const +audio_io_handle_t AudioRecord::getInputPrivate() const { AutoMutex lock(mLock); return mInput; @@ -712,7 +796,7 @@ audio_io_handle_t AudioRecord::getInput() const // ------------------------------------------------------------------------- -ssize_t AudioRecord::read(void* buffer, size_t userSize) +ssize_t AudioRecord::read(void* buffer, size_t userSize, bool blocking) { if (mTransfer != TRANSFER_SYNC) { return INVALID_OPERATION; @@ -731,7 +815,8 @@ ssize_t AudioRecord::read(void* buffer, size_t userSize) while (userSize >= mFrameSize) { audioBuffer.frameCount = userSize / mFrameSize; - status_t err = obtainBuffer(&audioBuffer, &ClientProxy::kForever); + status_t err = obtainBuffer(&audioBuffer, + blocking ? &ClientProxy::kForever : &ClientProxy::kNonBlocking); if (err < 0) { if (read > 0) { break; @@ -863,8 +948,11 @@ nsecs_t AudioRecord::processAudioBuffer() if (!markerReached && position < markerPosition) { minFrames = markerPosition - position; } - if (updatePeriod > 0 && updatePeriod < minFrames) { - minFrames = updatePeriod; + if (updatePeriod > 0) { + uint32_t remaining = newPosition - position; + if (remaining < minFrames) { + minFrames = remaining; + } } // If > 0, poll periodically to recover from a stuck server. A good value is 2. @@ -990,14 +1078,13 @@ status_t AudioRecord::restoreRecord_l(const char *from) { ALOGW("dead IAudioRecord, creating a new one from %s()", from); ++mSequence; - status_t result; // if the new IAudioRecord is created, openRecord_l() will modify the // following member variables: mAudioRecord, mCblkMemory, mCblk, mBufferMemory. // It will also delete the strong references on previous IAudioRecord and IMemory size_t position = mProxy->getPosition(); mNewPosition = position + mUpdatePeriod; - result = openRecord_l(position); + status_t result = openRecord_l(position, mOpPackageName); if (result == NO_ERROR) { if (mActive) { // callback thread or sync event hasn't changed @@ -1013,6 +1100,48 @@ status_t AudioRecord::restoreRecord_l(const char *from) return result; } +status_t AudioRecord::addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback) +{ + if (callback == 0) { + ALOGW("%s adding NULL callback!", __FUNCTION__); + return BAD_VALUE; + } + AutoMutex lock(mLock); + if (mDeviceCallback == callback) { + ALOGW("%s adding same callback!", __FUNCTION__); + return INVALID_OPERATION; + } + status_t status = NO_ERROR; + if (mInput != AUDIO_IO_HANDLE_NONE) { + if (mDeviceCallback != 0) { + ALOGW("%s callback already present!", __FUNCTION__); + AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput); + } + status = AudioSystem::addAudioDeviceCallback(callback, mInput); + } + mDeviceCallback = callback; + return status; +} + +status_t AudioRecord::removeAudioDeviceCallback( + const sp<AudioSystem::AudioDeviceCallback>& callback) +{ + if (callback == 0) { + ALOGW("%s removing NULL callback!", __FUNCTION__); + return BAD_VALUE; + } + AutoMutex lock(mLock); + if (mDeviceCallback != callback) { + ALOGW("%s removing different callback!", __FUNCTION__); + return INVALID_OPERATION; + } + if (mInput != AUDIO_IO_HANDLE_NONE) { + AudioSystem::removeAudioDeviceCallback(mDeviceCallback, mInput); + } + mDeviceCallback = 0; + return NO_ERROR; +} + // ========================================================================= void AudioRecord::DeathNotifier::binderDied(const wp<IBinder>& who __unused) @@ -1069,8 +1198,8 @@ bool AudioRecord::AudioRecordThread::threadLoop() case NS_NEVER: return false; case NS_WHENEVER: - // FIXME increase poll interval, or make event-driven - ns = 1000000000LL; + // Event driven: call wake() when callback notifications conditions change. + ns = INT64_MAX; // fall through default: LOG_ALWAYS_FATAL_IF(ns < 0, "processAudioBuffer() returned %" PRId64, ns); @@ -1103,6 +1232,21 @@ void AudioRecord::AudioRecordThread::resume() } } +void AudioRecord::AudioRecordThread::wake() +{ + AutoMutex _l(mMyLock); + if (!mPaused) { + // wake() might be called while servicing a callback - ignore the next + // pause time and call processAudioBuffer. + mIgnoreNextPausedInt = true; + if (mPausedInt && mPausedNs > 0) { + // audio record is active and internally paused with timeout. + mPausedInt = false; + mMyCond.signal(); + } + } +} + void AudioRecord::AudioRecordThread::pauseInternal(nsecs_t ns) { AutoMutex _l(mMyLock); @@ -1112,4 +1256,4 @@ void AudioRecord::AudioRecordThread::pauseInternal(nsecs_t ns) // ------------------------------------------------------------------------- -}; // namespace android +} // namespace android |