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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MEDIA_FILTERS_OPUS_AUDIO_DECODER_H_ | 5 #ifndef MEDIA_FILTERS_OPUS_AUDIO_DECODER_H_ |
| 6 #define MEDIA_FILTERS_OPUS_AUDIO_DECODER_H_ | 6 #define MEDIA_FILTERS_OPUS_AUDIO_DECODER_H_ |
| 7 | 7 |
| 8 #include "base/callback.h" | 8 #include "base/callback.h" |
| 9 #include "base/memory/weak_ptr.h" | 9 #include "base/memory/weak_ptr.h" |
| 10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
| 11 #include "media/base/audio_decoder.h" | 11 #include "media/base/audio_decoder.h" |
| 12 #include "media/base/demuxer_stream.h" | 12 #include "media/base/demuxer_stream.h" |
| 13 #include "media/base/sample_format.h" | 13 #include "media/base/sample_format.h" |
| 14 | 14 |
| 15 struct OpusMSDecoder; | 15 struct OpusMSDecoder; |
| 16 | 16 |
| 17 namespace base { | 17 namespace base { |
| 18 class MessageLoopProxy; | 18 class SingleThreadTaskRunner; |
| 19 } | 19 } |
| 20 | 20 |
| 21 namespace media { | 21 namespace media { |
| 22 | 22 |
| 23 class AudioBuffer; | 23 class AudioBuffer; |
| 24 class AudioTimestampHelper; | 24 class AudioTimestampHelper; |
| 25 class DecoderBuffer; | 25 class DecoderBuffer; |
| 26 struct QueuedAudioBuffer; | 26 struct QueuedAudioBuffer; |
| 27 | 27 |
| 28 class MEDIA_EXPORT OpusAudioDecoder : public AudioDecoder { | 28 class MEDIA_EXPORT OpusAudioDecoder : public AudioDecoder { |
| 29 public: | 29 public: |
| 30 explicit OpusAudioDecoder( | 30 explicit OpusAudioDecoder( |
| 31 const scoped_refptr<base::MessageLoopProxy>& message_loop); | 31 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner); |
| 32 virtual ~OpusAudioDecoder(); | 32 virtual ~OpusAudioDecoder(); |
| 33 | 33 |
| 34 // AudioDecoder implementation. | 34 // AudioDecoder implementation. |
| 35 virtual void Initialize(DemuxerStream* stream, | 35 virtual void Initialize(DemuxerStream* stream, |
| 36 const PipelineStatusCB& status_cb, | 36 const PipelineStatusCB& status_cb, |
| 37 const StatisticsCB& statistics_cb) OVERRIDE; | 37 const StatisticsCB& statistics_cb) OVERRIDE; |
| 38 virtual void Read(const ReadCB& read_cb) OVERRIDE; | 38 virtual void Read(const ReadCB& read_cb) OVERRIDE; |
| 39 virtual int bits_per_channel() OVERRIDE; | 39 virtual int bits_per_channel() OVERRIDE; |
| 40 virtual ChannelLayout channel_layout() OVERRIDE; | 40 virtual ChannelLayout channel_layout() OVERRIDE; |
| 41 virtual int samples_per_second() OVERRIDE; | 41 virtual int samples_per_second() OVERRIDE; |
| 42 virtual void Reset(const base::Closure& closure) OVERRIDE; | 42 virtual void Reset(const base::Closure& closure) OVERRIDE; |
| 43 | 43 |
| 44 private: | 44 private: |
| 45 // Reads from the demuxer stream with corresponding callback method. | 45 // Reads from the demuxer stream with corresponding callback method. |
| 46 void ReadFromDemuxerStream(); | 46 void ReadFromDemuxerStream(); |
| 47 void BufferReady(DemuxerStream::Status status, | 47 void BufferReady(DemuxerStream::Status status, |
| 48 const scoped_refptr<DecoderBuffer>& input); | 48 const scoped_refptr<DecoderBuffer>& input); |
| 49 | 49 |
| 50 | 50 |
| 51 bool ConfigureDecoder(); | 51 bool ConfigureDecoder(); |
| 52 void CloseDecoder(); | 52 void CloseDecoder(); |
| 53 void ResetTimestampState(); | 53 void ResetTimestampState(); |
| 54 bool Decode(const scoped_refptr<DecoderBuffer>& input, | 54 bool Decode(const scoped_refptr<DecoderBuffer>& input, |
| 55 scoped_refptr<AudioBuffer>* output_buffer); | 55 scoped_refptr<AudioBuffer>* output_buffer); |
| 56 | 56 |
| 57 scoped_refptr<base::MessageLoopProxy> message_loop_; | 57 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
| 58 base::WeakPtrFactory<OpusAudioDecoder> weak_factory_; | 58 base::WeakPtrFactory<OpusAudioDecoder> weak_factory_; |
| 59 base::WeakPtr<OpusAudioDecoder> weak_this_; | 59 base::WeakPtr<OpusAudioDecoder> weak_this_; |
| 60 | 60 |
| 61 DemuxerStream* demuxer_stream_; | 61 DemuxerStream* demuxer_stream_; |
| 62 StatisticsCB statistics_cb_; | 62 StatisticsCB statistics_cb_; |
| 63 OpusMSDecoder* opus_decoder_; | 63 OpusMSDecoder* opus_decoder_; |
| 64 | 64 |
| 65 // Decoded audio format. | 65 // Decoded audio format. |
| 66 ChannelLayout channel_layout_; | 66 ChannelLayout channel_layout_; |
| 67 int samples_per_second_; | 67 int samples_per_second_; |
| (...skipping 22 matching lines...) Expand all Loading... |
| 90 // Timestamp to be subtracted from all the frames. This is typically computed | 90 // Timestamp to be subtracted from all the frames. This is typically computed |
| 91 // from the CodecDelay value in the container. | 91 // from the CodecDelay value in the container. |
| 92 base::TimeDelta timestamp_offset_; | 92 base::TimeDelta timestamp_offset_; |
| 93 | 93 |
| 94 DISALLOW_IMPLICIT_CONSTRUCTORS(OpusAudioDecoder); | 94 DISALLOW_IMPLICIT_CONSTRUCTORS(OpusAudioDecoder); |
| 95 }; | 95 }; |
| 96 | 96 |
| 97 } // namespace media | 97 } // namespace media |
| 98 | 98 |
| 99 #endif // MEDIA_FILTERS_OPUS_AUDIO_DECODER_H_ | 99 #endif // MEDIA_FILTERS_OPUS_AUDIO_DECODER_H_ |
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