inline void RtmpParser::onGetAAC(const char* pcData, int iLen, uint32_t ui32TimeStamp) {
//添加adts头
memcpy(m_adts.data + 7, pcData, iLen);
m_adts.aac_frame_length = 7 + iLen;
m_adts.timeStamp = ui32TimeStamp;
writeAdtsHeader(m_adts, m_adts.data);
{
lock_guard<recursive_mutex> lck(m_mtxCB);
if (onAudio) {
onAudio(m_adts);
}
}
m_adts.aac_frame_length = 7;
}
status_t AACWriter::threadFunc() {
mEstimatedDurationUs = 0;
mEstimatedSizeBytes = 0;
int64_t previousPausedDurationUs = 0;
int64_t maxTimestampUs = 0;
status_t err = OK;
prctl(PR_SET_NAME, (unsigned long)"AACWriterThread", 0, 0, 0);
while (!mDone && err == OK) {
MediaBuffer *buffer;
err = mSource->read(&buffer);
if (err != OK) {
break;
}
if (mPaused) {
buffer->release();
buffer = NULL;
continue;
}
mEstimatedSizeBytes += kAdtsHeaderLength + buffer->range_length();
if (exceedsFileSizeLimit()) {
buffer->release();
buffer = NULL;
notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0);
break;
}
int32_t isCodecSpecific = 0;
if (buffer->meta_data()->findInt32(kKeyIsCodecConfig, &isCodecSpecific) && isCodecSpecific) {
ALOGV("Drop codec specific info buffer");
buffer->release();
buffer = NULL;
continue;
}
int64_t timestampUs;
CHECK(buffer->meta_data()->findInt64(kKeyTime, ×tampUs));
if (timestampUs > mEstimatedDurationUs) {
mEstimatedDurationUs = timestampUs;
}
if (mResumed) {
previousPausedDurationUs += (timestampUs - maxTimestampUs - mFrameDurationUs);
mResumed = false;
}
timestampUs -= previousPausedDurationUs;
ALOGV("time stamp: %lld, previous paused duration: %lld",
timestampUs, previousPausedDurationUs);
if (timestampUs > maxTimestampUs) {
maxTimestampUs = timestampUs;
}
if (exceedsFileDurationLimit()) {
buffer->release();
buffer = NULL;
notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_DURATION_REACHED, 0);
break;
}
// Each output AAC audio frame to the file contains
// 1. an ADTS header, followed by
// 2. the compressed audio data.
ssize_t dataLength = buffer->range_length();
uint8_t *data = (uint8_t *)buffer->data() + buffer->range_offset();
if (writeAdtsHeader(kAdtsHeaderLength + dataLength) != OK ||
dataLength != write(mFd, data, dataLength)) {
err = ERROR_IO;
}
buffer->release();
buffer = NULL;
}
close(mFd);
mFd = -1;
mReachedEOS = true;
if (err == ERROR_END_OF_STREAM) {
return OK;
}
return err;
}
