/*
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* Copyright 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "bt_btif_avrcp_audio_track"
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#include "btif_avrcp_audio_track.h"
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#include <base/logging.h>
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#include <media/AudioTrack.h>
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#include <utils/StrongPointer.h>
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#include "bt_target.h"
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#include "osi/include/log.h"
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using namespace android;
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typedef struct { android::sp<android::AudioTrack> track; } BtifAvrcpAudioTrack;
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#if (DUMP_PCM_DATA == TRUE)
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FILE* outputPcmSampleFile;
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char outputFilename[50] = "/data/misc/bluedroid/output_sample.pcm";
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#endif
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void* BtifAvrcpAudioTrackCreate(int trackFreq, int bits_per_sample,
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int channelType) {
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audio_format_t format;
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switch (bits_per_sample) {
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default:
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case 16:
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format = AUDIO_FORMAT_PCM_16_BIT;
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break;
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case 24:
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format = AUDIO_FORMAT_PCM_24_BIT_PACKED;
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break;
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case 32:
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format = AUDIO_FORMAT_PCM_32_BIT;
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break;
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}
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LOG_VERBOSE(LOG_TAG,
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"%s Track.cpp: btCreateTrack freq %d format 0x%x channel %d ",
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__func__, trackFreq, format, channelType);
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sp<android::AudioTrack> track = new android::AudioTrack(
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AUDIO_STREAM_MUSIC, trackFreq, format, channelType,
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(size_t)0 /*frameCount*/, (audio_output_flags_t)AUDIO_OUTPUT_FLAG_FAST,
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NULL /*callback_t*/, NULL /*void* user*/, 0 /*notificationFrames*/,
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AUDIO_SESSION_ALLOCATE, android::AudioTrack::TRANSFER_SYNC);
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CHECK(track != NULL);
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BtifAvrcpAudioTrack* trackHolder = new BtifAvrcpAudioTrack;
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CHECK(trackHolder != NULL);
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trackHolder->track = track;
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if (trackHolder->track->initCheck() != 0) {
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return nullptr;
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}
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#if (DUMP_PCM_DATA == TRUE)
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outputPcmSampleFile = fopen(outputFilename, "ab");
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#endif
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trackHolder->track->setVolume(1, 1);
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return (void*)trackHolder;
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}
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void BtifAvrcpAudioTrackStart(void* handle) {
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if (handle == NULL) {
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LOG_ERROR(LOG_TAG, "%s: handle is null!", __func__);
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return;
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}
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BtifAvrcpAudioTrack* trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
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CHECK(trackHolder != NULL);
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CHECK(trackHolder->track != NULL);
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LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
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trackHolder->track->start();
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}
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void BtifAvrcpAudioTrackStop(void* handle) {
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if (handle == NULL) {
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LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
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return;
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}
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BtifAvrcpAudioTrack* trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
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if (trackHolder != NULL && trackHolder->track != NULL) {
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LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
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trackHolder->track->stop();
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}
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}
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void BtifAvrcpAudioTrackDelete(void* handle) {
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if (handle == NULL) {
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LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
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return;
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}
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BtifAvrcpAudioTrack* trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
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if (trackHolder != NULL && trackHolder->track != NULL) {
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LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
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delete trackHolder;
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}
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#if (DUMP_PCM_DATA == TRUE)
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if (outputPcmSampleFile) {
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fclose(outputPcmSampleFile);
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}
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outputPcmSampleFile = NULL;
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#endif
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}
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void BtifAvrcpAudioTrackPause(void* handle) {
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if (handle == NULL) {
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LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
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return;
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}
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BtifAvrcpAudioTrack* trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
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if (trackHolder != NULL && trackHolder->track != NULL) {
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LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btStartTrack", __func__);
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trackHolder->track->pause();
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trackHolder->track->flush();
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}
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}
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void BtifAvrcpSetAudioTrackGain(void* handle, float gain) {
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if (handle == NULL) {
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LOG_DEBUG(LOG_TAG, "%s handle is null.", __func__);
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return;
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}
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BtifAvrcpAudioTrack* trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
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if (trackHolder != NULL && trackHolder->track != NULL) {
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LOG_VERBOSE(LOG_TAG, "%s set gain %f", __func__, gain);
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trackHolder->track->setVolume(gain);
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}
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}
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int BtifAvrcpAudioTrackWriteData(void* handle, void* audioBuffer,
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int bufferlen) {
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BtifAvrcpAudioTrack* trackHolder = static_cast<BtifAvrcpAudioTrack*>(handle);
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CHECK(trackHolder != NULL);
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CHECK(trackHolder->track != NULL);
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int retval = -1;
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#if (DUMP_PCM_DATA == TRUE)
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if (outputPcmSampleFile) {
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fwrite((audioBuffer), 1, (size_t)bufferlen, outputPcmSampleFile);
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}
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#endif
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retval = trackHolder->track->write(audioBuffer, (size_t)bufferlen);
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LOG_VERBOSE(LOG_TAG, "%s Track.cpp: btWriteData len = %d ret = %d", __func__,
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bufferlen, retval);
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return retval;
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}
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