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// Copyright 2018 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef STARBOARD_SHARED_OPUS_OPUS_AUDIO_DECODER_H_
#define STARBOARD_SHARED_OPUS_OPUS_AUDIO_DECODER_H_
#include <queue>
#include <vector>
#include "starboard/common/ref_counted.h"
#include "starboard/media.h"
#include "starboard/shared/internal_only.h"
#include "starboard/shared/starboard/media/media_util.h"
#include "starboard/shared/starboard/player/decoded_audio_internal.h"
#include "starboard/shared/starboard/player/filter/audio_decoder_internal.h"
#include "starboard/shared/starboard/player/job_queue.h"
#include "third_party/opus/include/opus_multistream.h"
namespace starboard {
namespace shared {
namespace opus {
class OpusAudioDecoder
: public ::starboard::shared::starboard::player::filter::AudioDecoder,
private starboard::player::JobQueue::JobOwner {
public:
typedef shared::starboard::media::AudioSampleInfo AudioSampleInfo;
explicit OpusAudioDecoder(const SbMediaAudioSampleInfo& audio_sample_info);
~OpusAudioDecoder() override;
bool is_valid() const;
// AudioDecoder functions
void Initialize(const OutputCB& output_cb, const ErrorCB& error_cb) override;
void Decode(const scoped_refptr<InputBuffer>& input_buffer,
const ConsumedCB& consumed_cb) override;
void WriteEndOfStream() override;
scoped_refptr<DecodedAudio> Read(int* samples_per_second) override;
void Reset() override;
private:
static const int kMaxOpusFramesPerAU = 9600;
SbMediaAudioSampleType GetSampleType() const;
OutputCB output_cb_;
ErrorCB error_cb_;
OpusMSDecoder* decoder_ = NULL;
bool stream_ended_ = false;
std::queue<scoped_refptr<DecodedAudio> > decoded_audios_;
AudioSampleInfo audio_sample_info_;
int frames_per_au_ = kMaxOpusFramesPerAU;
};
} // namespace opus
} // namespace shared
} // namespace starboard
#endif // STARBOARD_SHARED_OPUS_OPUS_AUDIO_DECODER_H_