1e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber/* 2e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * Copyright (C) 2010 The Android Open Source Project 3e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * 4e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * you may not use this file except in compliance with the License. 6e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * You may obtain a copy of the License at 7e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * 8e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * 10e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * Unless required by applicable law or agreed to in writing, software 11e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * See the License for the specific language governing permissions and 14e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber * limitations under the License. 15e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber */ 16e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 17a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn#include <inttypes.h> 18a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn#include <stdlib.h> 19a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn 20050b28a593350047845a45a14cc5026221ac1620James Dong//#define LOG_NDEBUG 0 21050b28a593350047845a45a14cc5026221ac1620James Dong#define LOG_TAG "AudioSource" 22050b28a593350047845a45a14cc5026221ac1620James Dong#include <utils/Log.h> 23050b28a593350047845a45a14cc5026221ac1620James Dong 24e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber#include <media/AudioRecord.h> 256b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong#include <media/stagefright/AudioSource.h> 266b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong#include <media/stagefright/MediaBuffer.h> 27e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber#include <media/stagefright/MediaDefs.h> 28e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber#include <media/stagefright/MetaData.h> 296b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong#include <media/stagefright/foundation/ADebug.h> 30082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huber#include <media/stagefright/foundation/ALooper.h> 31365a963142093a1cd8efdcea76b5f65096a5b115James Dong#include <cutils/properties.h> 32e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 33e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Hubernamespace android { 34e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 356b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongstatic void AudioRecordCallbackFunction(int event, void *user, void *info) { 366b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong AudioSource *source = (AudioSource *) user; 376b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong switch (event) { 386b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong case AudioRecord::EVENT_MORE_DATA: { 39082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huber source->dataCallback(*((AudioRecord::Buffer *) info)); 406b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong break; 416b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 426b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong case AudioRecord::EVENT_OVERRUN: { 435ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("AudioRecord reported overrun!"); 446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong break; 456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 466b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong default: 476b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // does nothing 486b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong break; 496b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 506b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 516b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 52e7c9cb48fec02697227bd847cd2e69432659adfdAndreas HuberAudioSource::AudioSource( 53ab334fd351ae5a0e18903da123d63e565b536874Glenn Kasten audio_source_t inputSource, uint32_t sampleRate, uint32_t channelCount) 54e2ffd5b583da9d30d96710b0e8879e90b2b51d30Glenn Kasten : mStarted(false), 556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mSampleRate(sampleRate), 5646292fb347d72a314d985e34e5e3743d846cb9b6James Dong mPrevSampleTimeUs(0), 576b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mNumFramesReceived(0), 58af5dd7753e62353411cf0daf3b513c38818e9662Andreas Huber mNumClientOwnedBuffers(0) { 59ab334fd351ae5a0e18903da123d63e565b536874Glenn Kasten ALOGV("sampleRate: %d, channelCount: %d", sampleRate, channelCount); 60ab334fd351ae5a0e18903da123d63e565b536874Glenn Kasten CHECK(channelCount == 1 || channelCount == 2); 61be6ec71af2d12e2a55f2f0b1b77d3fa5d593a1c7James Dong 62e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t minFrameCount; 63e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent status_t status = AudioRecord::getMinFrameCount(&minFrameCount, 64e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent sampleRate, 65e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AUDIO_FORMAT_PCM_16_BIT, 66dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten audio_channel_in_mask_from_count(channelCount)); 67e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent if (status == OK) { 68e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // make sure that the AudioRecord callback never returns more than the maximum 69e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // buffer size 70838b3d8bafa4a781e277870dee4e0390165cff52Glenn Kasten uint32_t frameCount = kMaxBufferSize / sizeof(int16_t) / channelCount; 71e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent 72e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // make sure that the AudioRecord total buffer size is large enough 7384333e0475bc911adc16417f4ca327c975cf6c36Andreas Huber size_t bufCount = 2; 74e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent while ((bufCount * frameCount) < minFrameCount) { 75e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent bufCount++; 76e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } 77e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent 78e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mRecord = new AudioRecord( 79e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent inputSource, sampleRate, AUDIO_FORMAT_PCM_16_BIT, 80e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent audio_channel_in_mask_from_count(channelCount), 81bce50bfc3846ab008bafa75c5d3f29fd7b5395f7Glenn Kasten (size_t) (bufCount * frameCount), 82e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AudioRecordCallbackFunction, 83e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent this, 84838b3d8bafa4a781e277870dee4e0390165cff52Glenn Kasten frameCount /*notificationFrames*/); 85e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mInitCheck = mRecord->initCheck(); 86e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } else { 87e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mInitCheck = status; 88e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } 89e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 90e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 91e7c9cb48fec02697227bd847cd2e69432659adfdAndreas HuberAudioSource::~AudioSource() { 92e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (mStarted) { 93b44c9d2bdc0d5b9cb03254022a58e017b516e9e6James Dong reset(); 94e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 95e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 96e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 97e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::initCheck() const { 98e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return mInitCheck; 99e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 100e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 101e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::start(MetaData *params) { 1026b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 103e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (mStarted) { 104e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return UNKNOWN_ERROR; 105e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 106e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1076e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1086e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 1096e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1106e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 111d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mTrackMaxAmplitude = false; 112d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = 0; 113d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong mInitialReadTimeUs = 0; 114f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong mStartTimeUs = 0; 115f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong int64_t startTimeUs; 116f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong if (params && params->findInt64(kKeyTime, &startTimeUs)) { 117f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong mStartTimeUs = startTimeUs; 118f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong } 119e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber status_t err = mRecord->start(); 120e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (err == OK) { 121e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber mStarted = true; 122eaae38445a340c4857c1c5569475879a728e63b7James Dong } else { 123e2ffd5b583da9d30d96710b0e8879e90b2b51d30Glenn Kasten mRecord.clear(); 124e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 125e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 126eaae38445a340c4857c1c5569475879a728e63b7James Dong 127e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return err; 128e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 129e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1306b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::releaseQueuedFrames_l() { 1313856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("releaseQueuedFrames_l"); 1326b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong List<MediaBuffer *>::iterator it; 1336b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (!mBuffersReceived.empty()) { 1346b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong it = mBuffersReceived.begin(); 1356b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (*it)->release(); 1366b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.erase(it); 1376b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 1386b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 1396b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 1406b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::waitOutstandingEncodingFrames_l() { 141a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn ALOGV("waitOutstandingEncodingFrames_l: %" PRId64, mNumClientOwnedBuffers); 1426b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (mNumClientOwnedBuffers > 0) { 1436b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameEncodingCompletionCondition.wait(mLock); 1446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 1456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 1466b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 147b44c9d2bdc0d5b9cb03254022a58e017b516e9e6James Dongstatus_t AudioSource::reset() { 1486b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 149e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (!mStarted) { 150e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return UNKNOWN_ERROR; 151e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 152e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1536e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1546e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 1556e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1566e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 157e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber mStarted = false; 15816e79115e497386eaf010af388627f94314a55a3Chong Zhang mFrameAvailableCondition.signal(); 15916e79115e497386eaf010af388627f94314a55a3Chong Zhang 1606b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mRecord->stop(); 1616b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong waitOutstandingEncodingFrames_l(); 1626b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong releaseQueuedFrames_l(); 163365a963142093a1cd8efdcea76b5f65096a5b115James Dong 164e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return OK; 165e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 166e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 167e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Hubersp<MetaData> AudioSource::getFormat() { 1686b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 1696e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1706e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return 0; 1716e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1726e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 173e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber sp<MetaData> meta = new MetaData; 174e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW); 1756b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong meta->setInt32(kKeySampleRate, mSampleRate); 176e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setInt32(kKeyChannelCount, mRecord->channelCount()); 177e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setInt32(kKeyMaxInputSize, kMaxBufferSize); 178e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 179e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return meta; 180e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 181e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 182f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dongvoid AudioSource::rampVolume( 183f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t startFrame, int32_t rampDurationFrames, 184f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong uint8_t *data, size_t bytes) { 185f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 186f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong const int32_t kShift = 14; 187f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t fixedMultiplier = (startFrame << kShift) / rampDurationFrames; 188f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong const int32_t nChannels = mRecord->channelCount(); 189f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t stopFrame = startFrame + bytes / sizeof(int16_t); 190f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int16_t *frame = (int16_t *) data; 191f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if (stopFrame > rampDurationFrames) { 192f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong stopFrame = rampDurationFrames; 193f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 194f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 195f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong while (startFrame < stopFrame) { 196f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if (nChannels == 1) { // mono 197f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[0] = (frame[0] * fixedMultiplier) >> kShift; 198f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong ++frame; 199f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong ++startFrame; 200f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } else { // stereo 201f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[0] = (frame[0] * fixedMultiplier) >> kShift; 202f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[1] = (frame[1] * fixedMultiplier) >> kShift; 203f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame += 2; 204f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong startFrame += 2; 205f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 206f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 207f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong // Update the multiplier every 4 frames 208f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if ((startFrame & 3) == 0) { 209f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong fixedMultiplier = (startFrame << kShift) / rampDurationFrames; 210f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 211f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 212f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong} 213f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 214e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::read( 21584333e0475bc911adc16417f4ca327c975cf6c36Andreas Huber MediaBuffer **out, const ReadOptions * /* options */) { 2166b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2176b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong *out = NULL; 2186e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 2196e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 2206e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 2216e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 2226e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 2236b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (mStarted && mBuffersReceived.empty()) { 2246b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameAvailableCondition.wait(mLock); 2256b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 2266b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (!mStarted) { 2276b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2286b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 2296b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong MediaBuffer *buffer = *mBuffersReceived.begin(); 2306b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.erase(mBuffersReceived.begin()); 2316b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong ++mNumClientOwnedBuffers; 2326b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->setObserver(this); 2336b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->add_ref(); 2346b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2356b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Mute/suppress the recording sound 2366b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int64_t timeUs; 2376b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs)); 2386b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int64_t elapsedTimeUs = timeUs - mStartTimeUs; 2396b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (elapsedTimeUs < kAutoRampStartUs) { 2406b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong memset((uint8_t *) buffer->data(), 0, buffer->range_length()); 2416b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } else if (elapsedTimeUs < kAutoRampStartUs + kAutoRampDurationUs) { 2426b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t autoRampDurationFrames = 243b65473f4f881ee7c0a24217ceac69514f6c127d5Vineeta Srivastava ((int64_t)kAutoRampDurationUs * mSampleRate + 500000LL) / 1000000LL; //Need type casting 2446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t autoRampStartFrames = 246b65473f4f881ee7c0a24217ceac69514f6c127d5Vineeta Srivastava ((int64_t)kAutoRampStartUs * mSampleRate + 500000LL) / 1000000LL; //Need type casting 2476b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2486b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t nFrames = mNumFramesReceived - autoRampStartFrames; 2496b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong rampVolume(nFrames, autoRampDurationFrames, 2506b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (uint8_t *) buffer->data(), buffer->range_length()); 2516b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 252542db5d438988360d491a5add1040a2df9aa90c9James Dong 2536b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Track the max recording signal amplitude. 2546b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mTrackMaxAmplitude) { 2556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong trackMaxAmplitude( 2566b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (int16_t *) buffer->data(), buffer->range_length() >> 1); 2576b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 258542db5d438988360d491a5add1040a2df9aa90c9James Dong 2596b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong *out = buffer; 2606b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2616b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 262542db5d438988360d491a5add1040a2df9aa90c9James Dong 2636b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::signalBufferReturned(MediaBuffer *buffer) { 2643856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("signalBufferReturned: %p", buffer->data()); 2656b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2666b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong --mNumClientOwnedBuffers; 2676b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->setObserver(0); 2686b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->release(); 2696b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameEncodingCompletionCondition.signal(); 2706b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return; 2716b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 27246292fb347d72a314d985e34e5e3743d846cb9b6James Dong 273082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huberstatus_t AudioSource::dataCallback(const AudioRecord::Buffer& audioBuffer) { 274af5dd7753e62353411cf0daf3b513c38818e9662Andreas Huber int64_t timeUs = systemTime() / 1000ll; 275082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huber 276a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn ALOGV("dataCallbackTimestamp: %" PRId64 " us", timeUs); 2776b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2786b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (!mStarted) { 2795ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("Spurious callback from AudioRecord. Drop the audio data."); 2806b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2816b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 28246292fb347d72a314d985e34e5e3743d846cb9b6James Dong 283a472613aec322e25891abf5c77bf3f7e3c244920James Dong // Drop retrieved and previously lost audio data. 284a472613aec322e25891abf5c77bf3f7e3c244920James Dong if (mNumFramesReceived == 0 && timeUs < mStartTimeUs) { 2855f972c031d4061f4f037c9fda1ea4bd9b6a756cdGlenn Kasten (void) mRecord->getInputFramesLost(); 286a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn ALOGV("Drop audio data at %" PRId64 "/%" PRId64 " us", timeUs, mStartTimeUs); 287a472613aec322e25891abf5c77bf3f7e3c244920James Dong return OK; 288a472613aec322e25891abf5c77bf3f7e3c244920James Dong } 289a472613aec322e25891abf5c77bf3f7e3c244920James Dong 2906b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mNumFramesReceived == 0 && mPrevSampleTimeUs == 0) { 2916b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mInitialReadTimeUs = timeUs; 2926b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Initial delay 293af5dd7753e62353411cf0daf3b513c38818e9662Andreas Huber if (mStartTimeUs > 0) { 2946b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mStartTimeUs = timeUs - mStartTimeUs; 2956b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } else { 2966b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Assume latency is constant. 2976b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mStartTimeUs += mRecord->latency() * 1000; 298f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong } 299082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huber 3006b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mPrevSampleTimeUs = mStartTimeUs; 3016b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 302e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 303a472613aec322e25891abf5c77bf3f7e3c244920James Dong size_t numLostBytes = 0; 304a472613aec322e25891abf5c77bf3f7e3c244920James Dong if (mNumFramesReceived > 0) { // Ignore earlier frame lost 305a472613aec322e25891abf5c77bf3f7e3c244920James Dong // getInputFramesLost() returns the number of lost frames. 306a472613aec322e25891abf5c77bf3f7e3c244920James Dong // Convert number of frames lost to number of bytes lost. 307a472613aec322e25891abf5c77bf3f7e3c244920James Dong numLostBytes = mRecord->getInputFramesLost() * mRecord->frameSize(); 308a472613aec322e25891abf5c77bf3f7e3c244920James Dong } 309a472613aec322e25891abf5c77bf3f7e3c244920James Dong 3106b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK_EQ(numLostBytes & 1, 0u); 3116b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK_EQ(audioBuffer.size & 1, 0u); 3126b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (numLostBytes > 0) { 313b575ddce78d266fa218006f90306158dda5c8f56James Dong // Loss of audio frames should happen rarely; thus the LOGW should 314b575ddce78d266fa218006f90306158dda5c8f56James Dong // not cause a logging spam 315377b2ec9a2885f9b6405b07ba900a9e3f4349c38Kévin PETIT ALOGW("Lost audio record data: %zu bytes", numLostBytes); 316b575ddce78d266fa218006f90306158dda5c8f56James Dong } 317b575ddce78d266fa218006f90306158dda5c8f56James Dong 318b575ddce78d266fa218006f90306158dda5c8f56James Dong while (numLostBytes > 0) { 319b575ddce78d266fa218006f90306158dda5c8f56James Dong size_t bufferSize = numLostBytes; 320b575ddce78d266fa218006f90306158dda5c8f56James Dong if (numLostBytes > kMaxBufferSize) { 321b575ddce78d266fa218006f90306158dda5c8f56James Dong numLostBytes -= kMaxBufferSize; 322b575ddce78d266fa218006f90306158dda5c8f56James Dong bufferSize = kMaxBufferSize; 323b575ddce78d266fa218006f90306158dda5c8f56James Dong } else { 324b575ddce78d266fa218006f90306158dda5c8f56James Dong numLostBytes = 0; 325d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong } 326b575ddce78d266fa218006f90306158dda5c8f56James Dong MediaBuffer *lostAudioBuffer = new MediaBuffer(bufferSize); 327b575ddce78d266fa218006f90306158dda5c8f56James Dong memset(lostAudioBuffer->data(), 0, bufferSize); 328b575ddce78d266fa218006f90306158dda5c8f56James Dong lostAudioBuffer->set_range(0, bufferSize); 329b575ddce78d266fa218006f90306158dda5c8f56James Dong queueInputBuffer_l(lostAudioBuffer, timeUs); 330b575ddce78d266fa218006f90306158dda5c8f56James Dong } 331b575ddce78d266fa218006f90306158dda5c8f56James Dong 332b575ddce78d266fa218006f90306158dda5c8f56James Dong if (audioBuffer.size == 0) { 333b575ddce78d266fa218006f90306158dda5c8f56James Dong ALOGW("Nothing is available from AudioRecord callback buffer"); 334b575ddce78d266fa218006f90306158dda5c8f56James Dong return OK; 3356b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 3363c3763d2ee1cd1fba7fe522fbaf0faca315d8c2aJames Dong 337b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t bufferSize = audioBuffer.size; 338b575ddce78d266fa218006f90306158dda5c8f56James Dong MediaBuffer *buffer = new MediaBuffer(bufferSize); 339b575ddce78d266fa218006f90306158dda5c8f56James Dong memcpy((uint8_t *) buffer->data(), 340b575ddce78d266fa218006f90306158dda5c8f56James Dong audioBuffer.i16, audioBuffer.size); 3416b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->set_range(0, bufferSize); 342b575ddce78d266fa218006f90306158dda5c8f56James Dong queueInputBuffer_l(buffer, timeUs); 343b575ddce78d266fa218006f90306158dda5c8f56James Dong return OK; 344b575ddce78d266fa218006f90306158dda5c8f56James Dong} 345b575ddce78d266fa218006f90306158dda5c8f56James Dong 346b575ddce78d266fa218006f90306158dda5c8f56James Dongvoid AudioSource::queueInputBuffer_l(MediaBuffer *buffer, int64_t timeUs) { 347b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t bufferSize = buffer->range_length(); 348b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t frameSize = mRecord->frameSize(); 349b575ddce78d266fa218006f90306158dda5c8f56James Dong const int64_t timestampUs = 350b575ddce78d266fa218006f90306158dda5c8f56James Dong mPrevSampleTimeUs + 351b575ddce78d266fa218006f90306158dda5c8f56James Dong ((1000000LL * (bufferSize / frameSize)) + 352b575ddce78d266fa218006f90306158dda5c8f56James Dong (mSampleRate >> 1)) / mSampleRate; 353e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 3546b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mNumFramesReceived == 0) { 3556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyAnchorTime, mStartTimeUs); 356542db5d438988360d491a5add1040a2df9aa90c9James Dong } 357b575ddce78d266fa218006f90306158dda5c8f56James Dong 3586b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyTime, mPrevSampleTimeUs); 3596b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyDriftTime, timeUs - mInitialReadTimeUs); 3606b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mPrevSampleTimeUs = timestampUs; 361b575ddce78d266fa218006f90306158dda5c8f56James Dong mNumFramesReceived += bufferSize / frameSize; 3626b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.push_back(buffer); 3636b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameAvailableCondition.signal(); 364e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 365e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 366d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dongvoid AudioSource::trackMaxAmplitude(int16_t *data, int nSamples) { 367d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong for (int i = nSamples; i > 0; --i) { 368d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong int16_t value = *data++; 369d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (value < 0) { 370d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong value = -value; 371d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 372d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (mMaxAmplitude < value) { 373d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = value; 374d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 375d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 376d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong} 377d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong 378d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dongint16_t AudioSource::getMaxAmplitude() { 379d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong // First call activates the tracking. 380d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (!mTrackMaxAmplitude) { 381d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mTrackMaxAmplitude = true; 382d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 383d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong int16_t value = mMaxAmplitude; 384d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = 0; 3853856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("max amplitude since last call: %d", value); 386d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong return value; 387d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong} 388d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong 389e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} // namespace android 390