AudioSource.cpp revision e49f2b424318aa8e830e7a1338e5e32ab82992f9
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 17050b28a593350047845a45a14cc5026221ac1620James Dong//#define LOG_NDEBUG 0 18050b28a593350047845a45a14cc5026221ac1620James Dong#define LOG_TAG "AudioSource" 19050b28a593350047845a45a14cc5026221ac1620James Dong#include <utils/Log.h> 20050b28a593350047845a45a14cc5026221ac1620James Dong 21e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber#include <media/AudioRecord.h> 226b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong#include <media/stagefright/AudioSource.h> 236b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong#include <media/stagefright/MediaBuffer.h> 24e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber#include <media/stagefright/MediaDefs.h> 25e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber#include <media/stagefright/MetaData.h> 266b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong#include <media/stagefright/foundation/ADebug.h> 27365a963142093a1cd8efdcea76b5f65096a5b115James Dong#include <cutils/properties.h> 2846292fb347d72a314d985e34e5e3743d846cb9b6James Dong#include <stdlib.h> 29e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 30e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Hubernamespace android { 31e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 326b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongstatic void AudioRecordCallbackFunction(int event, void *user, void *info) { 336b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong AudioSource *source = (AudioSource *) user; 346b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong switch (event) { 356b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong case AudioRecord::EVENT_MORE_DATA: { 366b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong source->dataCallbackTimestamp(*((AudioRecord::Buffer *) info), systemTime() / 1000); 376b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong break; 386b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 396b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong case AudioRecord::EVENT_OVERRUN: { 405ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("AudioRecord reported overrun!"); 416b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong break; 426b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 436b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong default: 446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // does nothing 456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong break; 466b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 476b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 486b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 49e7c9cb48fec02697227bd847cd2e69432659adfdAndreas HuberAudioSource::AudioSource( 50ab334fd351ae5a0e18903da123d63e565b536874Glenn Kasten audio_source_t inputSource, uint32_t sampleRate, uint32_t channelCount) 51be6ec71af2d12e2a55f2f0b1b77d3fa5d593a1c7James Dong : mStarted(false), 526b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mSampleRate(sampleRate), 5346292fb347d72a314d985e34e5e3743d846cb9b6James Dong mPrevSampleTimeUs(0), 546b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mNumFramesReceived(0), 556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mNumClientOwnedBuffers(0) { 56be6ec71af2d12e2a55f2f0b1b77d3fa5d593a1c7James Dong 57ab334fd351ae5a0e18903da123d63e565b536874Glenn Kasten ALOGV("sampleRate: %d, channelCount: %d", sampleRate, channelCount); 58ab334fd351ae5a0e18903da123d63e565b536874Glenn Kasten CHECK(channelCount == 1 || channelCount == 2); 59be6ec71af2d12e2a55f2f0b1b77d3fa5d593a1c7James Dong 60e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent int minFrameCount; 61e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent status_t status = AudioRecord::getMinFrameCount(&minFrameCount, 62e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent sampleRate, 63e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AUDIO_FORMAT_PCM_16_BIT, 64e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent channelCount); 65e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent if (status == OK) { 66e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // make sure that the AudioRecord callback never returns more than the maximum 67e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // buffer size 68e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent int frameCount = kMaxBufferSize / sizeof(int16_t) / channelCount; 69e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent 70e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent // make sure that the AudioRecord total buffer size is large enough 71e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent int bufCount = 2; 72e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent while ((bufCount * frameCount) < minFrameCount) { 73e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent bufCount++; 74e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } 75e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent 76e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AudioRecord::record_flags flags = (AudioRecord::record_flags) 77e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent (AudioRecord::RECORD_AGC_ENABLE | 78e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AudioRecord::RECORD_NS_ENABLE | 79e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AudioRecord::RECORD_IIR_ENABLE); 80e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mRecord = new AudioRecord( 81e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent inputSource, sampleRate, AUDIO_FORMAT_PCM_16_BIT, 82e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent audio_channel_in_mask_from_count(channelCount), 83e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent bufCount * frameCount, 84e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent flags, 85e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent AudioRecordCallbackFunction, 86e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent this, 87e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent frameCount); 88e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mInitCheck = mRecord->initCheck(); 89e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } else { 90e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent mInitCheck = status; 91e49f2b424318aa8e830e7a1338e5e32ab82992f9Eric Laurent } 92e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 93e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 94e7c9cb48fec02697227bd847cd2e69432659adfdAndreas HuberAudioSource::~AudioSource() { 95e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (mStarted) { 96b44c9d2bdc0d5b9cb03254022a58e017b516e9e6James Dong reset(); 97e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 98e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 99e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber delete mRecord; 100e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber mRecord = NULL; 101e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 102e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 103e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::initCheck() const { 104e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return mInitCheck; 105e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 106e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 107e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::start(MetaData *params) { 1086b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 109e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (mStarted) { 110e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return UNKNOWN_ERROR; 111e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 112e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1136e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1146e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 1156e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1166e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 117d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mTrackMaxAmplitude = false; 118d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = 0; 119d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong mInitialReadTimeUs = 0; 120f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong mStartTimeUs = 0; 121f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong int64_t startTimeUs; 122f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong if (params && params->findInt64(kKeyTime, &startTimeUs)) { 123f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong mStartTimeUs = startTimeUs; 124f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong } 125e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber status_t err = mRecord->start(); 126e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (err == OK) { 127e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber mStarted = true; 128eaae38445a340c4857c1c5569475879a728e63b7James Dong } else { 129eaae38445a340c4857c1c5569475879a728e63b7James Dong delete mRecord; 130eaae38445a340c4857c1c5569475879a728e63b7James Dong mRecord = NULL; 131e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 132e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 133eaae38445a340c4857c1c5569475879a728e63b7James Dong 134e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return err; 135e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 136e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1376b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::releaseQueuedFrames_l() { 1383856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("releaseQueuedFrames_l"); 1396b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong List<MediaBuffer *>::iterator it; 1406b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (!mBuffersReceived.empty()) { 1416b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong it = mBuffersReceived.begin(); 1426b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (*it)->release(); 1436b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.erase(it); 1446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 1456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 1466b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 1476b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::waitOutstandingEncodingFrames_l() { 1483856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("waitOutstandingEncodingFrames_l: %lld", mNumClientOwnedBuffers); 1496b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (mNumClientOwnedBuffers > 0) { 1506b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameEncodingCompletionCondition.wait(mLock); 1516b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 1526b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 1536b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 154b44c9d2bdc0d5b9cb03254022a58e017b516e9e6James Dongstatus_t AudioSource::reset() { 1556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 156e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber if (!mStarted) { 157e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return UNKNOWN_ERROR; 158e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber } 159e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 1606e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1616e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 1626e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1636e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 164e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber mStarted = false; 1656b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mRecord->stop(); 1666b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong waitOutstandingEncodingFrames_l(); 1676b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong releaseQueuedFrames_l(); 168365a963142093a1cd8efdcea76b5f65096a5b115James Dong 169e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return OK; 170e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 171e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 172e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Hubersp<MetaData> AudioSource::getFormat() { 1736b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 1746e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 1756e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return 0; 1766e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 1776e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 178e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber sp<MetaData> meta = new MetaData; 179e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW); 1806b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong meta->setInt32(kKeySampleRate, mSampleRate); 181e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setInt32(kKeyChannelCount, mRecord->channelCount()); 182e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber meta->setInt32(kKeyMaxInputSize, kMaxBufferSize); 183e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 184e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber return meta; 185e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 186e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 187f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dongvoid AudioSource::rampVolume( 188f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t startFrame, int32_t rampDurationFrames, 189f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong uint8_t *data, size_t bytes) { 190f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 191f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong const int32_t kShift = 14; 192f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t fixedMultiplier = (startFrame << kShift) / rampDurationFrames; 193f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong const int32_t nChannels = mRecord->channelCount(); 194f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int32_t stopFrame = startFrame + bytes / sizeof(int16_t); 195f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong int16_t *frame = (int16_t *) data; 196f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if (stopFrame > rampDurationFrames) { 197f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong stopFrame = rampDurationFrames; 198f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 199f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 200f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong while (startFrame < stopFrame) { 201f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if (nChannels == 1) { // mono 202f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[0] = (frame[0] * fixedMultiplier) >> kShift; 203f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong ++frame; 204f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong ++startFrame; 205f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } else { // stereo 206f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[0] = (frame[0] * fixedMultiplier) >> kShift; 207f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame[1] = (frame[1] * fixedMultiplier) >> kShift; 208f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong frame += 2; 209f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong startFrame += 2; 210f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 211f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 212f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong // Update the multiplier every 4 frames 213f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong if ((startFrame & 3) == 0) { 214f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong fixedMultiplier = (startFrame << kShift) / rampDurationFrames; 215f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 216f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong } 217f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong} 218f1ae1963f5028a670573b50a9c1cfb504fc426b4James Dong 219e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huberstatus_t AudioSource::read( 220e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber MediaBuffer **out, const ReadOptions *options) { 2216b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2226b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong *out = NULL; 2236e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 2246e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong if (mInitCheck != OK) { 2256e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong return NO_INIT; 2266e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong } 2276e20bdf799a6f4efa6c42121a958634ea32ed5ccJames Dong 2286b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong while (mStarted && mBuffersReceived.empty()) { 2296b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameAvailableCondition.wait(mLock); 2306b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 2316b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (!mStarted) { 2326b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2336b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 2346b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong MediaBuffer *buffer = *mBuffersReceived.begin(); 2356b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.erase(mBuffersReceived.begin()); 2366b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong ++mNumClientOwnedBuffers; 2376b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->setObserver(this); 2386b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->add_ref(); 2396b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2406b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Mute/suppress the recording sound 2416b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int64_t timeUs; 2426b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs)); 2436b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int64_t elapsedTimeUs = timeUs - mStartTimeUs; 2446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (elapsedTimeUs < kAutoRampStartUs) { 2456b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong memset((uint8_t *) buffer->data(), 0, buffer->range_length()); 2466b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } else if (elapsedTimeUs < kAutoRampStartUs + kAutoRampDurationUs) { 2476b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t autoRampDurationFrames = 2486b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (kAutoRampDurationUs * mSampleRate + 500000LL) / 1000000LL; 2496b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2506b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t autoRampStartFrames = 2516b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (kAutoRampStartUs * mSampleRate + 500000LL) / 1000000LL; 2526b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong 2536b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong int32_t nFrames = mNumFramesReceived - autoRampStartFrames; 2546b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong rampVolume(nFrames, autoRampDurationFrames, 2556b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (uint8_t *) buffer->data(), buffer->range_length()); 2566b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 257542db5d438988360d491a5add1040a2df9aa90c9James Dong 2586b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Track the max recording signal amplitude. 2596b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mTrackMaxAmplitude) { 2606b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong trackMaxAmplitude( 2616b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong (int16_t *) buffer->data(), buffer->range_length() >> 1); 2626b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 263542db5d438988360d491a5add1040a2df9aa90c9James Dong 2646b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong *out = buffer; 2656b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2666b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 267542db5d438988360d491a5add1040a2df9aa90c9James Dong 2686b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongvoid AudioSource::signalBufferReturned(MediaBuffer *buffer) { 2693856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("signalBufferReturned: %p", buffer->data()); 2706b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2716b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong --mNumClientOwnedBuffers; 2726b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->setObserver(0); 2736b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->release(); 2746b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameEncodingCompletionCondition.signal(); 2756b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return; 2766b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong} 27746292fb347d72a314d985e34e5e3743d846cb9b6James Dong 2786b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dongstatus_t AudioSource::dataCallbackTimestamp( 2796b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong const AudioRecord::Buffer& audioBuffer, int64_t timeUs) { 2803856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("dataCallbackTimestamp: %lld us", timeUs); 2816b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong Mutex::Autolock autoLock(mLock); 2826b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (!mStarted) { 2835ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("Spurious callback from AudioRecord. Drop the audio data."); 2846b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong return OK; 2856b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 28646292fb347d72a314d985e34e5e3743d846cb9b6James Dong 287a472613aec322e25891abf5c77bf3f7e3c244920James Dong // Drop retrieved and previously lost audio data. 288a472613aec322e25891abf5c77bf3f7e3c244920James Dong if (mNumFramesReceived == 0 && timeUs < mStartTimeUs) { 289a472613aec322e25891abf5c77bf3f7e3c244920James Dong mRecord->getInputFramesLost(); 2903856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Drop audio data at %lld/%lld us", timeUs, mStartTimeUs); 291a472613aec322e25891abf5c77bf3f7e3c244920James Dong return OK; 292a472613aec322e25891abf5c77bf3f7e3c244920James Dong } 293a472613aec322e25891abf5c77bf3f7e3c244920James Dong 2946b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mNumFramesReceived == 0 && mPrevSampleTimeUs == 0) { 2956b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mInitialReadTimeUs = timeUs; 2966b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Initial delay 2976b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mStartTimeUs > 0) { 2986b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mStartTimeUs = timeUs - mStartTimeUs; 2996b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } else { 3006b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong // Assume latency is constant. 3016b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mStartTimeUs += mRecord->latency() * 1000; 302f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong } 3036b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mPrevSampleTimeUs = mStartTimeUs; 3046b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 305e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 306a472613aec322e25891abf5c77bf3f7e3c244920James Dong size_t numLostBytes = 0; 307a472613aec322e25891abf5c77bf3f7e3c244920James Dong if (mNumFramesReceived > 0) { // Ignore earlier frame lost 308a472613aec322e25891abf5c77bf3f7e3c244920James Dong // getInputFramesLost() returns the number of lost frames. 309a472613aec322e25891abf5c77bf3f7e3c244920James Dong // Convert number of frames lost to number of bytes lost. 310a472613aec322e25891abf5c77bf3f7e3c244920James Dong numLostBytes = mRecord->getInputFramesLost() * mRecord->frameSize(); 311a472613aec322e25891abf5c77bf3f7e3c244920James Dong } 312a472613aec322e25891abf5c77bf3f7e3c244920James Dong 3136b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK_EQ(numLostBytes & 1, 0u); 3146b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong CHECK_EQ(audioBuffer.size & 1, 0u); 3156b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (numLostBytes > 0) { 316b575ddce78d266fa218006f90306158dda5c8f56James Dong // Loss of audio frames should happen rarely; thus the LOGW should 317b575ddce78d266fa218006f90306158dda5c8f56James Dong // not cause a logging spam 318b575ddce78d266fa218006f90306158dda5c8f56James Dong ALOGW("Lost audio record data: %d bytes", numLostBytes); 319b575ddce78d266fa218006f90306158dda5c8f56James Dong } 320b575ddce78d266fa218006f90306158dda5c8f56James Dong 321b575ddce78d266fa218006f90306158dda5c8f56James Dong while (numLostBytes > 0) { 322b575ddce78d266fa218006f90306158dda5c8f56James Dong size_t bufferSize = numLostBytes; 323b575ddce78d266fa218006f90306158dda5c8f56James Dong if (numLostBytes > kMaxBufferSize) { 324b575ddce78d266fa218006f90306158dda5c8f56James Dong numLostBytes -= kMaxBufferSize; 325b575ddce78d266fa218006f90306158dda5c8f56James Dong bufferSize = kMaxBufferSize; 326b575ddce78d266fa218006f90306158dda5c8f56James Dong } else { 327b575ddce78d266fa218006f90306158dda5c8f56James Dong numLostBytes = 0; 328d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong } 329b575ddce78d266fa218006f90306158dda5c8f56James Dong MediaBuffer *lostAudioBuffer = new MediaBuffer(bufferSize); 330b575ddce78d266fa218006f90306158dda5c8f56James Dong memset(lostAudioBuffer->data(), 0, bufferSize); 331b575ddce78d266fa218006f90306158dda5c8f56James Dong lostAudioBuffer->set_range(0, bufferSize); 332b575ddce78d266fa218006f90306158dda5c8f56James Dong queueInputBuffer_l(lostAudioBuffer, timeUs); 333b575ddce78d266fa218006f90306158dda5c8f56James Dong } 334b575ddce78d266fa218006f90306158dda5c8f56James Dong 335b575ddce78d266fa218006f90306158dda5c8f56James Dong if (audioBuffer.size == 0) { 336b575ddce78d266fa218006f90306158dda5c8f56James Dong ALOGW("Nothing is available from AudioRecord callback buffer"); 337b575ddce78d266fa218006f90306158dda5c8f56James Dong return OK; 3386b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong } 3393c3763d2ee1cd1fba7fe522fbaf0faca315d8c2aJames Dong 340b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t bufferSize = audioBuffer.size; 341b575ddce78d266fa218006f90306158dda5c8f56James Dong MediaBuffer *buffer = new MediaBuffer(bufferSize); 342b575ddce78d266fa218006f90306158dda5c8f56James Dong memcpy((uint8_t *) buffer->data(), 343b575ddce78d266fa218006f90306158dda5c8f56James Dong audioBuffer.i16, audioBuffer.size); 3446b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->set_range(0, bufferSize); 345b575ddce78d266fa218006f90306158dda5c8f56James Dong queueInputBuffer_l(buffer, timeUs); 346b575ddce78d266fa218006f90306158dda5c8f56James Dong return OK; 347b575ddce78d266fa218006f90306158dda5c8f56James Dong} 348b575ddce78d266fa218006f90306158dda5c8f56James Dong 349b575ddce78d266fa218006f90306158dda5c8f56James Dongvoid AudioSource::queueInputBuffer_l(MediaBuffer *buffer, int64_t timeUs) { 350b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t bufferSize = buffer->range_length(); 351b575ddce78d266fa218006f90306158dda5c8f56James Dong const size_t frameSize = mRecord->frameSize(); 352b575ddce78d266fa218006f90306158dda5c8f56James Dong const int64_t timestampUs = 353b575ddce78d266fa218006f90306158dda5c8f56James Dong mPrevSampleTimeUs + 354b575ddce78d266fa218006f90306158dda5c8f56James Dong ((1000000LL * (bufferSize / frameSize)) + 355b575ddce78d266fa218006f90306158dda5c8f56James Dong (mSampleRate >> 1)) / mSampleRate; 356e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 3576b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong if (mNumFramesReceived == 0) { 3586b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyAnchorTime, mStartTimeUs); 359542db5d438988360d491a5add1040a2df9aa90c9James Dong } 360b575ddce78d266fa218006f90306158dda5c8f56James Dong 3616b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyTime, mPrevSampleTimeUs); 3626b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong buffer->meta_data()->setInt64(kKeyDriftTime, timeUs - mInitialReadTimeUs); 3636b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mPrevSampleTimeUs = timestampUs; 364b575ddce78d266fa218006f90306158dda5c8f56James Dong mNumFramesReceived += bufferSize / frameSize; 3656b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mBuffersReceived.push_back(buffer); 3666b61f4355db1974cd0f0dfaa4effdd7117b9f09bJames Dong mFrameAvailableCondition.signal(); 367e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} 368e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber 369d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dongvoid AudioSource::trackMaxAmplitude(int16_t *data, int nSamples) { 370d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong for (int i = nSamples; i > 0; --i) { 371d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong int16_t value = *data++; 372d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (value < 0) { 373d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong value = -value; 374d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 375d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (mMaxAmplitude < value) { 376d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = value; 377d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 378d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 379d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong} 380d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong 381d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dongint16_t AudioSource::getMaxAmplitude() { 382d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong // First call activates the tracking. 383d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong if (!mTrackMaxAmplitude) { 384d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mTrackMaxAmplitude = true; 385d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong } 386d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong int16_t value = mMaxAmplitude; 387d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong mMaxAmplitude = 0; 3883856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("max amplitude since last call: %d", value); 389d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong return value; 390d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong} 391d3d4e5069e1af0437c4f5a7b4ba344bda5b937afJames Dong 392e7c9cb48fec02697227bd847cd2e69432659adfdAndreas Huber} // namespace android 393