AudioSource.cpp revision f88d1d8e63442d09303ca1090e1ee12e22040500
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( 5346d26dd29195450db15704e84d65740628a821fbChong Zhang audio_source_t inputSource, const String16 &opPackageName, 5446d26dd29195450db15704e84d65740628a821fbChong Zhang uint32_t sampleRate, uint32_t channelCount, uint32_t outSampleRate) 55e2ffd5b583da9d30d96710b0e8879e90b2b51d30Glenn Kasten : mStarted(false), 566b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mSampleRate(sampleRate), 5746d26dd29195450db15704e84d65740628a821fbChong Zhang mOutSampleRate(outSampleRate > 0 ? outSampleRate : sampleRate), 58f88d1d8e63442d09303ca1090e1ee12e22040500Marco Nelissen mTrackMaxAmplitude(false), 59f88d1d8e63442d09303ca1090e1ee12e22040500Marco Nelissen mStartTimeUs(0), 60f88d1d8e63442d09303ca1090e1ee12e22040500Marco Nelissen mMaxAmplitude(0), 6146292fb347d72a314d985e34e5e3743d846cb9b6James Dong mPrevSampleTimeUs(0), 6246d26dd29195450db15704e84d65740628a821fbChong Zhang mFirstSampleTimeUs(-1ll), 63f88d1d8e63442d09303ca1090e1ee12e22040500Marco Nelissen mInitialReadTimeUs(0), 646b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mNumFramesReceived(0), 65af5dd7753e62353411cf0daf3b513c38818e9662Andreas Huber mNumClientOwnedBuffers(0) { 6646d26dd29195450db15704e84d65740628a821fbChong Zhang ALOGV("sampleRate: %u, outSampleRate: %u, channelCount: %u", 6746d26dd29195450db15704e84d65740628a821fbChong Zhang sampleRate, outSampleRate, channelCount); 68ab334fd351ae5a0e18903da123d63e565b536874Glenn Kasten CHECK(channelCount == 1 || channelCount == 2); 6946d26dd29195450db15704e84d65740628a821fbChong Zhang CHECK(sampleRate > 0); 70be6ec71af2d12e2a55f2f0b1b77d3fa5d593a1c7James Dong 71e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t minFrameCount; 72e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent status_t status = AudioRecord::getMinFrameCount(&minFrameCount, 73e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent sampleRate, 74e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AUDIO_FORMAT_PCM_16_BIT, 75dd8104cc5367262f0e5f13df4e79f131e8d560bbGlenn Kasten audio_channel_in_mask_from_count(channelCount)); 76e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent if (status == OK) { 77e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // make sure that the AudioRecord callback never returns more than the maximum 78e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // buffer size 79838b3d8bafa4a781e277870dee4e0390165cff52Glenn Kasten uint32_t frameCount = kMaxBufferSize / sizeof(int16_t) / channelCount; 80e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent 81e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // make sure that the AudioRecord total buffer size is large enough 8284333e0475bc911adc16417f4ca327c975cf6c36Andreas Huber size_t bufCount = 2; 83e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent while ((bufCount * frameCount) < minFrameCount) { 84e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent bufCount++; 85e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } 86e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent 87e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mRecord = new AudioRecord( 88e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent inputSource, sampleRate, AUDIO_FORMAT_PCM_16_BIT, 89e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent audio_channel_in_mask_from_count(channelCount), 90be71aa29a3c86d2e01cd17839d2a72ab09a1bce5Svet Ganov opPackageName, 91bce50bfc3846ab008bafa75c5d3f29fd7b5395f7Glenn Kasten (size_t) (bufCount * frameCount), 92e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AudioRecordCallbackFunction, 93e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent this, 94838b3d8bafa4a781e277870dee4e0390165cff52Glenn Kasten frameCount /*notificationFrames*/); 95e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mInitCheck = mRecord->initCheck(); 963e98ecd18c906dc3ac2ff1a890f0b3163447272dGlenn Kasten if (mInitCheck != OK) { 973e98ecd18c906dc3ac2ff1a890f0b3163447272dGlenn Kasten mRecord.clear(); 983e98ecd18c906dc3ac2ff1a890f0b3163447272dGlenn Kasten } 99e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } else { 100e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mInitCheck = status; 101e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } 102e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 103e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 104e7c9cb48fec02697227bd847cd2e69432659adfdAndreas HuberAudioSource::~AudioSource() { 105e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (mStarted) { 106b44c9d2bdc0d5b9cb03254022a58e017b516e9e6James Dong reset(); 107e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 108e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 109e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 110e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::initCheck() const { 111e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return mInitCheck; 112e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 113e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 114e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::start(MetaData *params) { 1156b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 116e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (mStarted) { 117e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return UNKNOWN_ERROR; 118e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 119e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1206e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1216e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 1226e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1236e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 124d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mTrackMaxAmplitude = false; 125d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = 0; 126d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong mInitialReadTimeUs = 0; 127f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong mStartTimeUs = 0; 128f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong int64_t startTimeUs; 129f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong if (params && params->findInt64(kKeyTime, &startTimeUs)) { 130f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong mStartTimeUs = startTimeUs; 131f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong } 132e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber status_t err = mRecord->start(); 133e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (err == OK) { 134e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber mStarted = true; 135eaae38445a340c4857c1c5569475879a728e63b7James Dong } else { 136e2ffd5b583da9d30d96710b0e8879e90b2b51d30Glenn Kasten mRecord.clear(); 137e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 138e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 139eaae38445a340c4857c1c5569475879a728e63b7James Dong 140e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return err; 141e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 142e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1436b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::releaseQueuedFrames_l() { 1443856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("releaseQueuedFrames_l"); 1456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong List<MediaBuffer *>::iterator it; 1466b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (!mBuffersReceived.empty()) { 1476b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong it = mBuffersReceived.begin(); 1486b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (*it)->release(); 1496b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.erase(it); 1506b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 1516b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 1526b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 1536b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::waitOutstandingEncodingFrames_l() { 154a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn ALOGV("waitOutstandingEncodingFrames_l: %" PRId64, mNumClientOwnedBuffers); 1556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (mNumClientOwnedBuffers > 0) { 1566b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameEncodingCompletionCondition.wait(mLock); 1576b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 1586b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 1596b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 160b44c9d2bdc0d5b9cb03254022a58e017b516e9e6James Dongstatus_t AudioSource::reset() { 1616b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 162e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (!mStarted) { 163e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return UNKNOWN_ERROR; 164e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 165e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1666e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1676e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 1686e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1696e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 170e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber mStarted = false; 17116e79115e497386eaf010af388627f94314a55a3Chong Zhang mFrameAvailableCondition.signal(); 17216e79115e497386eaf010af388627f94314a55a3Chong Zhang 1736b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mRecord->stop(); 1746b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong waitOutstandingEncodingFrames_l(); 1756b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong releaseQueuedFrames_l(); 176365a963142093a1cd8efdcea76b5f65096a5b115James Dong 177e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return OK; 178e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 179e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 180e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Hubersp<MetaData> AudioSource::getFormat() { 1816b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 1826e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1836e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return 0; 1846e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1856e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 186e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber sp<MetaData> meta = new MetaData; 187e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW); 1886b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong meta->setInt32(kKeySampleRate, mSampleRate); 189e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setInt32(kKeyChannelCount, mRecord->channelCount()); 190e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setInt32(kKeyMaxInputSize, kMaxBufferSize); 191e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 192e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return meta; 193e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 194e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 195f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dongvoid AudioSource::rampVolume( 196f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t startFrame, int32_t rampDurationFrames, 197f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong uint8_t *data, size_t bytes) { 198f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 199f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong const int32_t kShift = 14; 200f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t fixedMultiplier = (startFrame << kShift) / rampDurationFrames; 201f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong const int32_t nChannels = mRecord->channelCount(); 202f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t stopFrame = startFrame + bytes / sizeof(int16_t); 203f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int16_t *frame = (int16_t *) data; 204f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if (stopFrame > rampDurationFrames) { 205f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong stopFrame = rampDurationFrames; 206f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 207f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 208f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong while (startFrame < stopFrame) { 209f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if (nChannels == 1) { // mono 210f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[0] = (frame[0] * fixedMultiplier) >> kShift; 211f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong ++frame; 212f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong ++startFrame; 213f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } else { // stereo 214f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[0] = (frame[0] * fixedMultiplier) >> kShift; 215f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[1] = (frame[1] * fixedMultiplier) >> kShift; 216f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame += 2; 217f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong startFrame += 2; 218f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 219f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 220f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong // Update the multiplier every 4 frames 221f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if ((startFrame & 3) == 0) { 222f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong fixedMultiplier = (startFrame << kShift) / rampDurationFrames; 223f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 224f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 225f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong} 226f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 227e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::read( 22884333e0475bc911adc16417f4ca327c975cf6c36Andreas Huber MediaBuffer **out, const ReadOptions * /* options */) { 2296b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2306b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong *out = NULL; 2316e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 2326e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 2336e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 2346e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 2356e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 2366b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (mStarted && mBuffersReceived.empty()) { 2376b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameAvailableCondition.wait(mLock); 2386b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 2396b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (!mStarted) { 2406b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2416b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 2426b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong MediaBuffer *buffer = *mBuffersReceived.begin(); 2436b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.erase(mBuffersReceived.begin()); 2446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong ++mNumClientOwnedBuffers; 2456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->setObserver(this); 2466b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->add_ref(); 2476b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2486b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Mute/suppress the recording sound 2496b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int64_t timeUs; 2506b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs)); 2516b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int64_t elapsedTimeUs = timeUs - mStartTimeUs; 2526b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (elapsedTimeUs < kAutoRampStartUs) { 2536b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong memset((uint8_t *) buffer->data(), 0, buffer->range_length()); 2546b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } else if (elapsedTimeUs < kAutoRampStartUs + kAutoRampDurationUs) { 2556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t autoRampDurationFrames = 256b65473f4f881ee7c0a24217ceac69514f6c127d5Vineeta Srivastava ((int64_t)kAutoRampDurationUs * mSampleRate + 500000LL) / 1000000LL; //Need type casting 2576b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2586b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t autoRampStartFrames = 259b65473f4f881ee7c0a24217ceac69514f6c127d5Vineeta Srivastava ((int64_t)kAutoRampStartUs * mSampleRate + 500000LL) / 1000000LL; //Need type casting 2606b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2616b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t nFrames = mNumFramesReceived - autoRampStartFrames; 2626b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong rampVolume(nFrames, autoRampDurationFrames, 2636b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (uint8_t *) buffer->data(), buffer->range_length()); 2646b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 265542db5d438988360d491a5add1040a2df9aa90c9James Dong 2666b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Track the max recording signal amplitude. 2676b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mTrackMaxAmplitude) { 2686b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong trackMaxAmplitude( 2696b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (int16_t *) buffer->data(), buffer->range_length() >> 1); 2706b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 271542db5d438988360d491a5add1040a2df9aa90c9James Dong 27246d26dd29195450db15704e84d65740628a821fbChong Zhang if (mSampleRate != mOutSampleRate) { 27346d26dd29195450db15704e84d65740628a821fbChong Zhang if (mFirstSampleTimeUs < 0) { 27446d26dd29195450db15704e84d65740628a821fbChong Zhang mFirstSampleTimeUs = timeUs; 27546d26dd29195450db15704e84d65740628a821fbChong Zhang } 27646d26dd29195450db15704e84d65740628a821fbChong Zhang timeUs = mFirstSampleTimeUs + (timeUs - mFirstSampleTimeUs) 27746d26dd29195450db15704e84d65740628a821fbChong Zhang * (int64_t)mSampleRate / (int64_t)mOutSampleRate; 27846d26dd29195450db15704e84d65740628a821fbChong Zhang buffer->meta_data()->setInt64(kKeyTime, timeUs); 27946d26dd29195450db15704e84d65740628a821fbChong Zhang } 28046d26dd29195450db15704e84d65740628a821fbChong Zhang 2816b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong *out = buffer; 2826b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2836b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 284542db5d438988360d491a5add1040a2df9aa90c9James Dong 2856b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::signalBufferReturned(MediaBuffer *buffer) { 2863856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("signalBufferReturned: %p", buffer->data()); 2876b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2886b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong --mNumClientOwnedBuffers; 2896b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->setObserver(0); 2906b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->release(); 2916b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameEncodingCompletionCondition.signal(); 2926b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return; 2936b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 29446292fb347d72a314d985e34e5e3743d846cb9b6James Dong 295082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huberstatus_t AudioSource::dataCallback(const AudioRecord::Buffer& audioBuffer) { 296af5dd7753e62353411cf0daf3b513c38818e9662Andreas Huber int64_t timeUs = systemTime() / 1000ll; 297082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huber 298a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn ALOGV("dataCallbackTimestamp: %" PRId64 " us", timeUs); 2996b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 3006b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (!mStarted) { 3015ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("Spurious callback from AudioRecord. Drop the audio data."); 3026b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 3036b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 30446292fb347d72a314d985e34e5e3743d846cb9b6James Dong 305a472613aec322e25891abf5c77bf3f7e3c244920James Dong // Drop retrieved and previously lost audio data. 306a472613aec322e25891abf5c77bf3f7e3c244920James Dong if (mNumFramesReceived == 0 && timeUs < mStartTimeUs) { 3075f972c031d4061f4f037c9fda1ea4bd9b6a756cdGlenn Kasten (void) mRecord->getInputFramesLost(); 308a5750e0dad9e90f2195ce36f2c4457fa04b2b83eMark Salyzyn ALOGV("Drop audio data at %" PRId64 "/%" PRId64 " us", timeUs, mStartTimeUs); 309a472613aec322e25891abf5c77bf3f7e3c244920James Dong return OK; 310a472613aec322e25891abf5c77bf3f7e3c244920James Dong } 311a472613aec322e25891abf5c77bf3f7e3c244920James Dong 3126b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mNumFramesReceived == 0 && mPrevSampleTimeUs == 0) { 3136b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mInitialReadTimeUs = timeUs; 3146b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Initial delay 315af5dd7753e62353411cf0daf3b513c38818e9662Andreas Huber if (mStartTimeUs > 0) { 3166b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mStartTimeUs = timeUs - mStartTimeUs; 3176b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } else { 3186b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Assume latency is constant. 3196b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mStartTimeUs += mRecord->latency() * 1000; 320f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong } 321082830f92373a1b9e512dbbfb940187ffa1c2c6fAndreas Huber 3226b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mPrevSampleTimeUs = mStartTimeUs; 3236b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 324e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 325a472613aec322e25891abf5c77bf3f7e3c244920James Dong size_t numLostBytes = 0; 326a472613aec322e25891abf5c77bf3f7e3c244920James Dong if (mNumFramesReceived > 0) { // Ignore earlier frame lost 327a472613aec322e25891abf5c77bf3f7e3c244920James Dong // getInputFramesLost() returns the number of lost frames. 328a472613aec322e25891abf5c77bf3f7e3c244920James Dong // Convert number of frames lost to number of bytes lost. 329a472613aec322e25891abf5c77bf3f7e3c244920James Dong numLostBytes = mRecord->getInputFramesLost() * mRecord->frameSize(); 330a472613aec322e25891abf5c77bf3f7e3c244920James Dong } 331a472613aec322e25891abf5c77bf3f7e3c244920James Dong 3326b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK_EQ(numLostBytes & 1, 0u); 3336b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK_EQ(audioBuffer.size & 1, 0u); 3346b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (numLostBytes > 0) { 335b575ddce78d266fa218006f90306158dda5c8f56James Dong // Loss of audio frames should happen rarely; thus the LOGW should 336b575ddce78d266fa218006f90306158dda5c8f56James Dong // not cause a logging spam 337377b2ec9a2885f9b6405b07ba900a9e3f4349c38Kévin PETIT ALOGW("Lost audio record data: %zu bytes", numLostBytes); 338b575ddce78d266fa218006f90306158dda5c8f56James Dong } 339b575ddce78d266fa218006f90306158dda5c8f56James Dong 340b575ddce78d266fa218006f90306158dda5c8f56James Dong while (numLostBytes > 0) { 341b575ddce78d266fa218006f90306158dda5c8f56James Dong size_t bufferSize = numLostBytes; 342b575ddce78d266fa218006f90306158dda5c8f56James Dong if (numLostBytes > kMaxBufferSize) { 343b575ddce78d266fa218006f90306158dda5c8f56James Dong numLostBytes -= kMaxBufferSize; 344b575ddce78d266fa218006f90306158dda5c8f56James Dong bufferSize = kMaxBufferSize; 345b575ddce78d266fa218006f90306158dda5c8f56James Dong } else { 346b575ddce78d266fa218006f90306158dda5c8f56James Dong numLostBytes = 0; 347d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong } 348b575ddce78d266fa218006f90306158dda5c8f56James Dong MediaBuffer *lostAudioBuffer = new MediaBuffer(bufferSize); 349b575ddce78d266fa218006f90306158dda5c8f56James Dong memset(lostAudioBuffer->data(), 0, bufferSize); 350b575ddce78d266fa218006f90306158dda5c8f56James Dong lostAudioBuffer->set_range(0, bufferSize); 351b575ddce78d266fa218006f90306158dda5c8f56James Dong queueInputBuffer_l(lostAudioBuffer, timeUs); 352b575ddce78d266fa218006f90306158dda5c8f56James Dong } 353b575ddce78d266fa218006f90306158dda5c8f56James Dong 354b575ddce78d266fa218006f90306158dda5c8f56James Dong if (audioBuffer.size == 0) { 355b575ddce78d266fa218006f90306158dda5c8f56James Dong ALOGW("Nothing is available from AudioRecord callback buffer"); 356b575ddce78d266fa218006f90306158dda5c8f56James Dong return OK; 3576b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 3583c3763d2ee1cd1fba7fe522fbaf0faca315d8c2aJames Dong 359b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t bufferSize = audioBuffer.size; 360b575ddce78d266fa218006f90306158dda5c8f56James Dong MediaBuffer *buffer = new MediaBuffer(bufferSize); 361b575ddce78d266fa218006f90306158dda5c8f56James Dong memcpy((uint8_t *) buffer->data(), 362b575ddce78d266fa218006f90306158dda5c8f56James Dong audioBuffer.i16, audioBuffer.size); 3636b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->set_range(0, bufferSize); 364b575ddce78d266fa218006f90306158dda5c8f56James Dong queueInputBuffer_l(buffer, timeUs); 365b575ddce78d266fa218006f90306158dda5c8f56James Dong return OK; 366b575ddce78d266fa218006f90306158dda5c8f56James Dong} 367b575ddce78d266fa218006f90306158dda5c8f56James Dong 368b575ddce78d266fa218006f90306158dda5c8f56James Dongvoid AudioSource::queueInputBuffer_l(MediaBuffer *buffer, int64_t timeUs) { 369b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t bufferSize = buffer->range_length(); 370b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t frameSize = mRecord->frameSize(); 371b575ddce78d266fa218006f90306158dda5c8f56James Dong const int64_t timestampUs = 372b575ddce78d266fa218006f90306158dda5c8f56James Dong mPrevSampleTimeUs + 373b575ddce78d266fa218006f90306158dda5c8f56James Dong ((1000000LL * (bufferSize / frameSize)) + 374b575ddce78d266fa218006f90306158dda5c8f56James Dong (mSampleRate >> 1)) / mSampleRate; 375e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 3766b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mNumFramesReceived == 0) { 3776b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyAnchorTime, mStartTimeUs); 378542db5d438988360d491a5add1040a2df9aa90c9James Dong } 379b575ddce78d266fa218006f90306158dda5c8f56James Dong 3806b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyTime, mPrevSampleTimeUs); 3816b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyDriftTime, timeUs - mInitialReadTimeUs); 3826b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mPrevSampleTimeUs = timestampUs; 383b575ddce78d266fa218006f90306158dda5c8f56James Dong mNumFramesReceived += bufferSize / frameSize; 3846b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.push_back(buffer); 3856b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameAvailableCondition.signal(); 386e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 387e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 388d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dongvoid AudioSource::trackMaxAmplitude(int16_t *data, int nSamples) { 389d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong for (int i = nSamples; i > 0; --i) { 390d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong int16_t value = *data++; 391d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (value < 0) { 392d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong value = -value; 393d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 394d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (mMaxAmplitude < value) { 395d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = value; 396d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 397d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 398d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong} 399d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong 400d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dongint16_t AudioSource::getMaxAmplitude() { 401d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong // First call activates the tracking. 402d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (!mTrackMaxAmplitude) { 403d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mTrackMaxAmplitude = true; 404d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 405d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong int16_t value = mMaxAmplitude; 406d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = 0; 4073856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("max amplitude since last call: %d", value); 408d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong return value; 409d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong} 410d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong 411e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} // namespace android 412