| /* |
| * Copyright (C) 2011 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 USE_LOG SLAndroidLogLevel_Verbose |
| |
| #include "sles_allinclusive.h" |
| #include "android/android_AudioSfDecoder.h" |
| #include "android/channels.h" |
| |
| #include <binder/IServiceManager.h> |
| #include <media/IMediaHTTPService.h> |
| #include <media/stagefright/foundation/ADebug.h> |
| #include <media/stagefright/MediaBuffer.h> |
| #include <media/stagefright/SimpleDecodingSource.h> |
| |
| |
| #define SIZE_CACHED_HIGH_BYTES 1000000 |
| #define SIZE_CACHED_MED_BYTES 700000 |
| #define SIZE_CACHED_LOW_BYTES 400000 |
| |
| namespace android { |
| |
| //-------------------------------------------------------------------------------------------------- |
| AudioSfDecoder::AudioSfDecoder(const AudioPlayback_Parameters* params) : GenericPlayer(params), |
| mDataSource(0), |
| mAudioSource(0), |
| mAudioSourceStarted(false), |
| mBitrate(-1), |
| mDurationUsec(ANDROID_UNKNOWN_TIME), |
| mDecodeBuffer(NULL), |
| mSeekTimeMsec(0), |
| // play event logic depends on the initial time being zero not ANDROID_UNKNOWN_TIME |
| mLastDecodedPositionUs(0) |
| { |
| SL_LOGD("AudioSfDecoder::AudioSfDecoder()"); |
| } |
| |
| |
| AudioSfDecoder::~AudioSfDecoder() { |
| SL_LOGD("AudioSfDecoder::~AudioSfDecoder()"); |
| } |
| |
| |
| void AudioSfDecoder::preDestroy() { |
| GenericPlayer::preDestroy(); |
| SL_LOGD("AudioSfDecoder::preDestroy()"); |
| { |
| Mutex::Autolock _l(mBufferSourceLock); |
| |
| if (NULL != mDecodeBuffer) { |
| mDecodeBuffer->release(); |
| mDecodeBuffer = NULL; |
| } |
| |
| if ((mAudioSource != 0) && mAudioSourceStarted) { |
| mAudioSource->stop(); |
| mAudioSourceStarted = false; |
| } |
| } |
| } |
| |
| |
| //-------------------------------------------------- |
| void AudioSfDecoder::play() { |
| SL_LOGD("AudioSfDecoder::play"); |
| |
| GenericPlayer::play(); |
| (new AMessage(kWhatDecode, this))->post(); |
| } |
| |
| |
| void AudioSfDecoder::getPositionMsec(int* msec) { |
| int64_t timeUsec = getPositionUsec(); |
| if (timeUsec == ANDROID_UNKNOWN_TIME) { |
| *msec = ANDROID_UNKNOWN_TIME; |
| } else { |
| *msec = timeUsec / 1000; |
| } |
| } |
| |
| |
| //-------------------------------------------------- |
| uint32_t AudioSfDecoder::getPcmFormatKeyCount() const { |
| return NB_PCMMETADATA_KEYS; |
| } |
| |
| |
| //-------------------------------------------------- |
| bool AudioSfDecoder::getPcmFormatKeySize(uint32_t index, uint32_t* pKeySize) { |
| if (index >= NB_PCMMETADATA_KEYS) { |
| return false; |
| } else { |
| *pKeySize = strlen(kPcmDecodeMetadataKeys[index]) +1; |
| return true; |
| } |
| } |
| |
| |
| //-------------------------------------------------- |
| bool AudioSfDecoder::getPcmFormatKeyName(uint32_t index, uint32_t keySize, char* keyName) { |
| uint32_t actualKeySize; |
| if (!getPcmFormatKeySize(index, &actualKeySize)) { |
| return false; |
| } |
| if (keySize < actualKeySize) { |
| return false; |
| } |
| strncpy(keyName, kPcmDecodeMetadataKeys[index], actualKeySize); |
| return true; |
| } |
| |
| |
| //-------------------------------------------------- |
| bool AudioSfDecoder::getPcmFormatValueSize(uint32_t index, uint32_t* pValueSize) { |
| if (index >= NB_PCMMETADATA_KEYS) { |
| *pValueSize = 0; |
| return false; |
| } else { |
| *pValueSize = sizeof(uint32_t); |
| return true; |
| } |
| } |
| |
| |
| //-------------------------------------------------- |
| bool AudioSfDecoder::getPcmFormatKeyValue(uint32_t index, uint32_t size, uint32_t* pValue) { |
| uint32_t valueSize = 0; |
| if (!getPcmFormatValueSize(index, &valueSize)) { |
| return false; |
| } else if (size != valueSize) { |
| // this ensures we are accessing mPcmFormatValues with a valid size for that index |
| SL_LOGE("Error retrieving metadata value at index %d: using size of %d, should be %d", |
| index, size, valueSize); |
| return false; |
| } else { |
| android::Mutex::Autolock autoLock(mPcmFormatLock); |
| *pValue = mPcmFormatValues[index]; |
| return true; |
| } |
| } |
| |
| |
| //-------------------------------------------------- |
| // Event handlers |
| // it is strictly verboten to call those methods outside of the event loop |
| |
| // Initializes the data and audio sources, and update the PCM format info |
| // post-condition: upon successful initialization based on the player data locator |
| // GenericPlayer::onPrepare() was called |
| // mDataSource != 0 |
| // mAudioSource != 0 |
| // mAudioSourceStarted == true |
| // All error returns from this method are via notifyPrepared(status) followed by "return". |
| void AudioSfDecoder::onPrepare() { |
| SL_LOGD("AudioSfDecoder::onPrepare()"); |
| Mutex::Autolock _l(mBufferSourceLock); |
| |
| { |
| android::Mutex::Autolock autoLock(mPcmFormatLock); |
| // Initialize the PCM format info with the known parameters before the start of the decode |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_BITSPERSAMPLE] = SL_PCMSAMPLEFORMAT_FIXED_16; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_CONTAINERSIZE] = 16; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_ENDIANNESS] = SL_BYTEORDER_LITTLEENDIAN; |
| // initialization with the default values: they will be replaced by the actual values |
| // once the decoder has figured them out |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_NUMCHANNELS] = UNKNOWN_NUMCHANNELS; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_SAMPLERATE] = UNKNOWN_SAMPLERATE; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_CHANNELMASK] = UNKNOWN_CHANNELMASK; |
| } |
| |
| //--------------------------------- |
| // Instantiate and initialize the data source for the decoder |
| sp<DataSource> dataSource; |
| |
| switch (mDataLocatorType) { |
| |
| case kDataLocatorNone: |
| SL_LOGE("AudioSfDecoder::onPrepare: no data locator set"); |
| notifyPrepared(MEDIA_ERROR_BASE); |
| return; |
| |
| case kDataLocatorUri: |
| dataSource = DataSource::CreateFromURI( |
| NULL /* XXX httpService */, mDataLocator.uriRef); |
| if (dataSource == NULL) { |
| SL_LOGE("AudioSfDecoder::onPrepare(): Error opening %s", mDataLocator.uriRef); |
| notifyPrepared(MEDIA_ERROR_BASE); |
| return; |
| } |
| break; |
| |
| case kDataLocatorFd: |
| { |
| // As FileSource unconditionally takes ownership of the fd and closes it, then |
| // we have to make a dup for FileSource if the app wants to keep ownership itself |
| int fd = mDataLocator.fdi.fd; |
| if (mDataLocator.fdi.mCloseAfterUse) { |
| mDataLocator.fdi.mCloseAfterUse = false; |
| } else { |
| fd = ::dup(fd); |
| } |
| dataSource = new FileSource(fd, mDataLocator.fdi.offset, mDataLocator.fdi.length); |
| status_t err = dataSource->initCheck(); |
| if (err != OK) { |
| notifyPrepared(err); |
| return; |
| } |
| break; |
| } |
| |
| // AndroidBufferQueue data source is handled by a subclass, |
| // which does not call up to this method. Hence, the missing case. |
| default: |
| TRESPASS(); |
| } |
| |
| //--------------------------------- |
| // Instantiate and initialize the decoder attached to the data source |
| sp<MediaExtractor> extractor = MediaExtractor::Create(dataSource); |
| if (extractor == NULL) { |
| SL_LOGE("AudioSfDecoder::onPrepare: Could not instantiate extractor."); |
| notifyPrepared(ERROR_UNSUPPORTED); |
| return; |
| } |
| |
| ssize_t audioTrackIndex = -1; |
| bool isRawAudio = false; |
| for (size_t i = 0; i < extractor->countTracks(); ++i) { |
| sp<MetaData> meta = extractor->getTrackMetaData(i); |
| |
| const char *mime; |
| CHECK(meta->findCString(kKeyMIMEType, &mime)); |
| |
| if (!strncasecmp("audio/", mime, 6)) { |
| if (isSupportedCodec(mime)) { |
| audioTrackIndex = i; |
| |
| if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_RAW, mime)) { |
| isRawAudio = true; |
| } |
| break; |
| } |
| } |
| } |
| |
| if (audioTrackIndex < 0) { |
| SL_LOGE("AudioSfDecoder::onPrepare: Could not find a supported audio track."); |
| notifyPrepared(ERROR_UNSUPPORTED); |
| return; |
| } |
| |
| sp<MediaSource> source = extractor->getTrack(audioTrackIndex); |
| sp<MetaData> meta = source->getFormat(); |
| |
| // we can't trust the OMXCodec (if there is one) to issue a INFO_FORMAT_CHANGED so we want |
| // to have some meaningful values as soon as possible. |
| int32_t channelCount; |
| bool hasChannelCount = meta->findInt32(kKeyChannelCount, &channelCount); |
| int32_t sr; |
| bool hasSampleRate = meta->findInt32(kKeySampleRate, &sr); |
| |
| // first compute the duration |
| off64_t size; |
| int64_t durationUs; |
| int32_t durationMsec; |
| if (dataSource->getSize(&size) == OK |
| && meta->findInt64(kKeyDuration, &durationUs)) { |
| if (durationUs != 0) { |
| mBitrate = size * 8000000ll / durationUs; // in bits/sec |
| } else { |
| mBitrate = -1; |
| } |
| mDurationUsec = durationUs; |
| durationMsec = durationUs / 1000; |
| } else { |
| mBitrate = -1; |
| mDurationUsec = ANDROID_UNKNOWN_TIME; |
| durationMsec = ANDROID_UNKNOWN_TIME; |
| } |
| |
| // then assign the duration under the settings lock |
| { |
| Mutex::Autolock _l(mSettingsLock); |
| mDurationMsec = durationMsec; |
| } |
| |
| // the audio content is not raw PCM, so we need a decoder |
| if (!isRawAudio) { |
| source = SimpleDecodingSource::Create(source); |
| if (source == NULL) { |
| SL_LOGE("AudioSfDecoder::onPrepare: Could not instantiate decoder."); |
| notifyPrepared(ERROR_UNSUPPORTED); |
| return; |
| } |
| |
| meta = source->getFormat(); |
| } |
| |
| |
| if (source->start() != OK) { |
| SL_LOGE("AudioSfDecoder::onPrepare: Failed to start source/decoder."); |
| notifyPrepared(MEDIA_ERROR_BASE); |
| return; |
| } |
| |
| //--------------------------------- |
| // The data source, and audio source (a decoder if required) are ready to be used |
| mDataSource = dataSource; |
| mAudioSource = source; |
| mAudioSourceStarted = true; |
| |
| if (!hasChannelCount) { |
| CHECK(meta->findInt32(kKeyChannelCount, &channelCount)); |
| } |
| |
| if (!hasSampleRate) { |
| CHECK(meta->findInt32(kKeySampleRate, &sr)); |
| } |
| // FIXME add code below once channel mask support is in, currently initialized to default |
| // value computed from the channel count |
| // if (!hasChannelMask) { |
| // CHECK(meta->findInt32(kKeyChannelMask, &channelMask)); |
| // } |
| |
| if (!wantPrefetch()) { |
| SL_LOGV("AudioSfDecoder::onPrepare: no need to prefetch"); |
| // doesn't need prefetching, notify good to go |
| mCacheStatus = kStatusHigh; |
| mCacheFill = 1000; |
| notifyStatus(); |
| notifyCacheFill(); |
| } |
| |
| { |
| android::Mutex::Autolock autoLock(mPcmFormatLock); |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_SAMPLERATE] = sr; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_NUMCHANNELS] = channelCount; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_CHANNELMASK] = |
| channelCountToMask(channelCount); |
| } |
| |
| // at this point we have enough information about the source to create the sink that |
| // will consume the data |
| createAudioSink(); |
| |
| // signal successful completion of prepare |
| mStateFlags |= kFlagPrepared; |
| |
| GenericPlayer::onPrepare(); |
| SL_LOGD("AudioSfDecoder::onPrepare() done, mStateFlags=0x%x", mStateFlags); |
| } |
| |
| |
| void AudioSfDecoder::onPause() { |
| SL_LOGV("AudioSfDecoder::onPause()"); |
| GenericPlayer::onPause(); |
| pauseAudioSink(); |
| } |
| |
| |
| void AudioSfDecoder::onPlay() { |
| SL_LOGV("AudioSfDecoder::onPlay()"); |
| GenericPlayer::onPlay(); |
| startAudioSink(); |
| } |
| |
| |
| void AudioSfDecoder::onSeek(const sp<AMessage> &msg) { |
| SL_LOGV("AudioSfDecoder::onSeek"); |
| int64_t timeMsec; |
| CHECK(msg->findInt64(WHATPARAM_SEEK_SEEKTIME_MS, &timeMsec)); |
| |
| Mutex::Autolock _l(mTimeLock); |
| mStateFlags |= kFlagSeeking; |
| mSeekTimeMsec = timeMsec; |
| // don't set mLastDecodedPositionUs to ANDROID_UNKNOWN_TIME; getPositionUsec |
| // ignores mLastDecodedPositionUs while seeking, and substitutes the seek goal instead |
| |
| // nop for now |
| GenericPlayer::onSeek(msg); |
| } |
| |
| |
| void AudioSfDecoder::onLoop(const sp<AMessage> &msg) { |
| SL_LOGV("AudioSfDecoder::onLoop"); |
| int32_t loop; |
| CHECK(msg->findInt32(WHATPARAM_LOOP_LOOPING, &loop)); |
| |
| if (loop) { |
| //SL_LOGV("AudioSfDecoder::onLoop start looping"); |
| mStateFlags |= kFlagLooping; |
| } else { |
| //SL_LOGV("AudioSfDecoder::onLoop stop looping"); |
| mStateFlags &= ~kFlagLooping; |
| } |
| |
| // nop for now |
| GenericPlayer::onLoop(msg); |
| } |
| |
| |
| void AudioSfDecoder::onCheckCache(const sp<AMessage> &msg) { |
| //SL_LOGV("AudioSfDecoder::onCheckCache"); |
| bool eos; |
| CacheStatus_t status = getCacheRemaining(&eos); |
| |
| if (eos || status == kStatusHigh |
| || ((mStateFlags & kFlagPreparing) && (status >= kStatusEnough))) { |
| if (mStateFlags & kFlagPlaying) { |
| startAudioSink(); |
| } |
| mStateFlags &= ~kFlagBuffering; |
| |
| SL_LOGV("AudioSfDecoder::onCheckCache: buffering done."); |
| |
| if (mStateFlags & kFlagPreparing) { |
| //SL_LOGV("AudioSfDecoder::onCheckCache: preparation done."); |
| mStateFlags &= ~kFlagPreparing; |
| } |
| |
| if (mStateFlags & kFlagPlaying) { |
| (new AMessage(kWhatDecode, this))->post(); |
| } |
| return; |
| } |
| |
| msg->post(100000); |
| } |
| |
| |
| void AudioSfDecoder::onDecode() { |
| SL_LOGV("AudioSfDecoder::onDecode"); |
| |
| //-------------------------------- Need to buffer some more before decoding? |
| bool eos; |
| if (mDataSource == 0) { |
| // application set play state to paused which failed, then set play state to playing |
| return; |
| } |
| |
| if (wantPrefetch() |
| && (getCacheRemaining(&eos) == kStatusLow) |
| && !eos) { |
| SL_LOGV("buffering more."); |
| |
| if (mStateFlags & kFlagPlaying) { |
| pauseAudioSink(); |
| } |
| mStateFlags |= kFlagBuffering; |
| (new AMessage(kWhatCheckCache, this))->post(100000); |
| return; |
| } |
| |
| if (!(mStateFlags & (kFlagPlaying | kFlagBuffering | kFlagPreparing))) { |
| // don't decode if we're not buffering, prefetching or playing |
| //SL_LOGV("don't decode: not buffering, prefetching or playing"); |
| return; |
| } |
| |
| //-------------------------------- Decode |
| status_t err; |
| MediaSource::ReadOptions readOptions; |
| if (mStateFlags & kFlagSeeking) { |
| assert(mSeekTimeMsec != ANDROID_UNKNOWN_TIME); |
| readOptions.setSeekTo(mSeekTimeMsec * 1000); |
| } |
| |
| int64_t timeUsec = ANDROID_UNKNOWN_TIME; |
| { |
| Mutex::Autolock _l(mBufferSourceLock); |
| |
| if (NULL != mDecodeBuffer) { |
| // the current decoded buffer hasn't been rendered, drop it |
| mDecodeBuffer->release(); |
| mDecodeBuffer = NULL; |
| } |
| if (!mAudioSourceStarted) { |
| return; |
| } |
| err = mAudioSource->read(&mDecodeBuffer, &readOptions); |
| if (err == OK) { |
| // FIXME workaround apparent bug in AAC decoder: kKeyTime is 3 frames old if length is 0 |
| if (mDecodeBuffer->range_length() == 0) { |
| timeUsec = ANDROID_UNKNOWN_TIME; |
| } else { |
| CHECK(mDecodeBuffer->meta_data()->findInt64(kKeyTime, &timeUsec)); |
| } |
| } else { |
| // errors are handled below |
| } |
| } |
| |
| { |
| Mutex::Autolock _l(mTimeLock); |
| if (mStateFlags & kFlagSeeking) { |
| mStateFlags &= ~kFlagSeeking; |
| mSeekTimeMsec = ANDROID_UNKNOWN_TIME; |
| } |
| if (timeUsec != ANDROID_UNKNOWN_TIME) { |
| // Note that though we've decoded this position, we haven't rendered it yet. |
| // So a GetPosition called after this point will observe the advanced position, |
| // even though the PCM may not have been supplied to the sink. That's OK as |
| // we don't claim to provide AAC frame-accurate (let alone sample-accurate) GetPosition. |
| mLastDecodedPositionUs = timeUsec; |
| } |
| } |
| |
| //-------------------------------- Handle return of decode |
| if (err != OK) { |
| bool continueDecoding = false; |
| switch (err) { |
| case ERROR_END_OF_STREAM: |
| if (0 < mDurationUsec) { |
| Mutex::Autolock _l(mTimeLock); |
| mLastDecodedPositionUs = mDurationUsec; |
| } |
| // handle notification and looping at end of stream |
| if (mStateFlags & kFlagPlaying) { |
| notify(PLAYEREVENT_ENDOFSTREAM, 1, true /*async*/); |
| } |
| if (mStateFlags & kFlagLooping) { |
| seek(0); |
| // kick-off decoding again |
| continueDecoding = true; |
| } |
| break; |
| case INFO_FORMAT_CHANGED: |
| SL_LOGD("MediaSource::read encountered INFO_FORMAT_CHANGED"); |
| // reconfigure output |
| { |
| Mutex::Autolock _l(mBufferSourceLock); |
| hasNewDecodeParams(); |
| } |
| continueDecoding = true; |
| break; |
| case INFO_DISCONTINUITY: |
| SL_LOGD("MediaSource::read encountered INFO_DISCONTINUITY"); |
| continueDecoding = true; |
| break; |
| default: |
| SL_LOGE("MediaSource::read returned error %d", err); |
| break; |
| } |
| if (continueDecoding) { |
| if (NULL == mDecodeBuffer) { |
| (new AMessage(kWhatDecode, this))->post(); |
| return; |
| } |
| } else { |
| return; |
| } |
| } |
| |
| //-------------------------------- Render |
| sp<AMessage> msg = new AMessage(kWhatRender, this); |
| msg->post(); |
| |
| } |
| |
| |
| void AudioSfDecoder::onMessageReceived(const sp<AMessage> &msg) { |
| switch (msg->what()) { |
| case kWhatDecode: |
| onDecode(); |
| break; |
| |
| case kWhatRender: |
| onRender(); |
| break; |
| |
| case kWhatCheckCache: |
| onCheckCache(msg); |
| break; |
| |
| default: |
| GenericPlayer::onMessageReceived(msg); |
| break; |
| } |
| } |
| |
| //-------------------------------------------------- |
| // Prepared state, prefetch status notifications |
| void AudioSfDecoder::notifyPrepared(status_t prepareRes) { |
| assert(!(mStateFlags & (kFlagPrepared | kFlagPreparedUnsuccessfully))); |
| if (NO_ERROR == prepareRes) { |
| // The "then" fork is not currently used, but is kept here to make it easier |
| // to replace by a new signalPrepareCompletion(status) if we re-visit this later. |
| mStateFlags |= kFlagPrepared; |
| } else { |
| mStateFlags |= kFlagPreparedUnsuccessfully; |
| } |
| // Do not call the superclass onPrepare to notify, because it uses a default error |
| // status code but we can provide a more specific one. |
| // GenericPlayer::onPrepare(); |
| notify(PLAYEREVENT_PREPARED, (int32_t)prepareRes, true /*async*/); |
| SL_LOGD("AudioSfDecoder::onPrepare() done, mStateFlags=0x%x", mStateFlags); |
| } |
| |
| |
| void AudioSfDecoder::onNotify(const sp<AMessage> &msg) { |
| notif_cbf_t notifyClient; |
| void* notifyUser; |
| { |
| android::Mutex::Autolock autoLock(mNotifyClientLock); |
| if (NULL == mNotifyClient) { |
| return; |
| } else { |
| notifyClient = mNotifyClient; |
| notifyUser = mNotifyUser; |
| } |
| } |
| int32_t val; |
| if (msg->findInt32(PLAYEREVENT_PREFETCHSTATUSCHANGE, &val)) { |
| SL_LOGV("\tASfPlayer notifying %s = %d", PLAYEREVENT_PREFETCHSTATUSCHANGE, val); |
| notifyClient(kEventPrefetchStatusChange, val, 0, notifyUser); |
| } |
| else if (msg->findInt32(PLAYEREVENT_PREFETCHFILLLEVELUPDATE, &val)) { |
| SL_LOGV("\tASfPlayer notifying %s = %d", PLAYEREVENT_PREFETCHFILLLEVELUPDATE, val); |
| notifyClient(kEventPrefetchFillLevelUpdate, val, 0, notifyUser); |
| } |
| else if (msg->findInt32(PLAYEREVENT_ENDOFSTREAM, &val)) { |
| SL_LOGV("\tASfPlayer notifying %s = %d", PLAYEREVENT_ENDOFSTREAM, val); |
| notifyClient(kEventEndOfStream, val, 0, notifyUser); |
| } |
| else { |
| GenericPlayer::onNotify(msg); |
| } |
| } |
| |
| |
| //-------------------------------------------------- |
| // Private utility functions |
| |
| bool AudioSfDecoder::wantPrefetch() { |
| if (mDataSource != 0) { |
| return (mDataSource->flags() & DataSource::kWantsPrefetching); |
| } else { |
| // happens if an improper data locator was passed, if the media extractor couldn't be |
| // initialized, if there is no audio track in the media, if the OMX decoder couldn't be |
| // instantiated, if the source couldn't be opened, or if the MediaSource |
| // couldn't be started |
| SL_LOGV("AudioSfDecoder::wantPrefetch() tries to access NULL mDataSource"); |
| return false; |
| } |
| } |
| |
| |
| int64_t AudioSfDecoder::getPositionUsec() { |
| Mutex::Autolock _l(mTimeLock); |
| if (mStateFlags & kFlagSeeking) { |
| return mSeekTimeMsec * 1000; |
| } else { |
| return mLastDecodedPositionUs; |
| } |
| } |
| |
| |
| CacheStatus_t AudioSfDecoder::getCacheRemaining(bool *eos) { |
| sp<NuCachedSource2> cachedSource = |
| static_cast<NuCachedSource2 *>(mDataSource.get()); |
| |
| CacheStatus_t oldStatus = mCacheStatus; |
| |
| status_t finalStatus; |
| size_t dataRemaining = cachedSource->approxDataRemaining(&finalStatus); |
| *eos = (finalStatus != OK); |
| |
| CHECK_GE(mBitrate, 0); |
| |
| int64_t dataRemainingUs = dataRemaining * 8000000ll / mBitrate; |
| //SL_LOGV("AudioSfDecoder::getCacheRemaining: approx %.2f secs remaining (eos=%d)", |
| // dataRemainingUs / 1E6, *eos); |
| |
| if (*eos) { |
| // data is buffered up to the end of the stream, it can't get any better than this |
| mCacheStatus = kStatusHigh; |
| mCacheFill = 1000; |
| |
| } else { |
| if (mDurationUsec > 0) { |
| // known duration: |
| |
| // fill level is ratio of how much has been played + how much is |
| // cached, divided by total duration |
| int64_t currentPositionUsec = getPositionUsec(); |
| if (currentPositionUsec == ANDROID_UNKNOWN_TIME) { |
| // if we don't know where we are, assume the worst for the fill ratio |
| currentPositionUsec = 0; |
| } |
| if (mDurationUsec > 0) { |
| mCacheFill = (int16_t) ((1000.0 |
| * (double)(currentPositionUsec + dataRemainingUs) / mDurationUsec)); |
| } else { |
| mCacheFill = 0; |
| } |
| //SL_LOGV("cacheFill = %d", mCacheFill); |
| |
| // cache status is evaluated against duration thresholds |
| if (dataRemainingUs > DURATION_CACHED_HIGH_MS*1000) { |
| mCacheStatus = kStatusHigh; |
| //ALOGV("high"); |
| } else if (dataRemainingUs > DURATION_CACHED_MED_MS*1000) { |
| //ALOGV("enough"); |
| mCacheStatus = kStatusEnough; |
| } else if (dataRemainingUs < DURATION_CACHED_LOW_MS*1000) { |
| //ALOGV("low"); |
| mCacheStatus = kStatusLow; |
| } else { |
| mCacheStatus = kStatusIntermediate; |
| } |
| |
| } else { |
| // unknown duration: |
| |
| // cache status is evaluated against cache amount thresholds |
| // (no duration so we don't have the bitrate either, could be derived from format?) |
| if (dataRemaining > SIZE_CACHED_HIGH_BYTES) { |
| mCacheStatus = kStatusHigh; |
| } else if (dataRemaining > SIZE_CACHED_MED_BYTES) { |
| mCacheStatus = kStatusEnough; |
| } else if (dataRemaining < SIZE_CACHED_LOW_BYTES) { |
| mCacheStatus = kStatusLow; |
| } else { |
| mCacheStatus = kStatusIntermediate; |
| } |
| } |
| |
| } |
| |
| if (oldStatus != mCacheStatus) { |
| notifyStatus(); |
| } |
| |
| if (abs(mCacheFill - mLastNotifiedCacheFill) > mCacheFillNotifThreshold) { |
| notifyCacheFill(); |
| } |
| |
| return mCacheStatus; |
| } |
| |
| |
| void AudioSfDecoder::hasNewDecodeParams() { |
| |
| if ((mAudioSource != 0) && mAudioSourceStarted) { |
| sp<MetaData> meta = mAudioSource->getFormat(); |
| |
| int32_t channelCount; |
| CHECK(meta->findInt32(kKeyChannelCount, &channelCount)); |
| int32_t sr; |
| CHECK(meta->findInt32(kKeySampleRate, &sr)); |
| |
| // FIXME similar to onPrepare() |
| { |
| android::Mutex::Autolock autoLock(mPcmFormatLock); |
| SL_LOGV("format changed: old sr=%d, channels=%d; new sr=%d, channels=%d", |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_SAMPLERATE], |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_NUMCHANNELS], |
| sr, channelCount); |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_NUMCHANNELS] = channelCount; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_SAMPLERATE] = sr; |
| mPcmFormatValues[ANDROID_KEY_INDEX_PCMFORMAT_CHANNELMASK] = |
| channelCountToMask(channelCount); |
| } |
| // there's no need to do a notify of PLAYEREVENT_CHANNEL_COUNT, |
| // because the only listener is for volume updates, and decoders don't support that |
| } |
| |
| // alert users of those params |
| updateAudioSink(); |
| } |
| |
| static const char* const kPlaybackOnlyCodecs[] = { MEDIA_MIMETYPE_AUDIO_AMR_NB, |
| MEDIA_MIMETYPE_AUDIO_AMR_WB }; |
| #define NB_PLAYBACK_ONLY_CODECS (sizeof(kPlaybackOnlyCodecs)/sizeof(kPlaybackOnlyCodecs[0])) |
| |
| bool AudioSfDecoder::isSupportedCodec(const char* mime) { |
| bool codecRequiresPermission = false; |
| for (unsigned int i = 0 ; i < NB_PLAYBACK_ONLY_CODECS ; i++) { |
| if (!strcasecmp(mime, kPlaybackOnlyCodecs[i])) { |
| codecRequiresPermission = true; |
| break; |
| } |
| } |
| if (codecRequiresPermission) { |
| // verify only the system can decode, for playback only |
| return checkCallingPermission( |
| String16("android.permission.ALLOW_ANY_CODEC_FOR_PLAYBACK")); |
| } else { |
| return true; |
| } |
| } |
| |
| } // namespace android |
