status_t ExtendedWriter::threadFunc() { mEstimatedDurationUs = 0; mEstimatedSizeBytes = 0; bool stoppedPrematurely = true; int64_t previousPausedDurationUs = 0; int64_t maxTimestampUs = 0; status_t err = OK; pid_t tid = gettid(); androidSetThreadPriority(tid, ANDROID_PRIORITY_AUDIO); prctl(PR_SET_NAME, (unsigned long)"ExtendedWriter", 0, 0, 0); while (!mDone) { MediaBuffer *buffer; err = mSource->read(&buffer); if (err != OK) { break; } if (mPaused) { buffer->release(); buffer = NULL; continue; } mEstimatedSizeBytes += buffer->range_length(); if (exceedsFileSizeLimit()) { buffer->release(); buffer = NULL; notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0); break; } int64_t timestampUs; CHECK(buffer->meta_data()->findInt64(kKeyTime, ×tampUs)); if (timestampUs > mEstimatedDurationUs) { mEstimatedDurationUs = timestampUs; } if (mResumed) { previousPausedDurationUs += (timestampUs - maxTimestampUs - 20000); mResumed = false; } 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; } ssize_t n = fwrite( (const uint8_t *)buffer->data() + buffer->range_offset(), 1, buffer->range_length(), mFile); mOffset += n; if (n < (ssize_t)buffer->range_length()) { buffer->release(); buffer = NULL; break; } // XXX: How to tell it is stopped prematurely? if (stoppedPrematurely) { stoppedPrematurely = false; } buffer->release(); buffer = NULL; } if (stoppedPrematurely) { notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS, UNKNOWN_ERROR); } if ( mFormat == AUDIO_FORMAT_QCELP ) { writeQCPHeader( ); } else if ( mFormat == AUDIO_FORMAT_EVRC ) { writeEVRCHeader( ); } fflush(mFile); fclose(mFile); mFile = NULL; mReachedEOS = true; if (err == ERROR_END_OF_STREAM || (err == -ETIMEDOUT)) { return OK; } return err; }