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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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_MOJO_SERVICES_MOJO_AUDIO_DECODER_H_ | 5 #ifndef MEDIA_MOJO_SERVICES_MOJO_AUDIO_DECODER_H_ |
6 #define MEDIA_MOJO_SERVICES_MOJO_AUDIO_DECODER_H_ | 6 #define MEDIA_MOJO_SERVICES_MOJO_AUDIO_DECODER_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
10 #include "media/base/audio_decoder.h" | 10 #include "media/base/audio_decoder.h" |
11 #include "media/mojo/interfaces/audio_decoder.mojom.h" | 11 #include "media/mojo/interfaces/audio_decoder.mojom.h" |
12 #include "mojo/public/cpp/bindings/binding.h" | 12 #include "mojo/public/cpp/bindings/binding.h" |
13 #include "mojo/public/cpp/system/data_pipe.h" | 13 #include "mojo/public/cpp/system/data_pipe.h" |
14 | 14 |
15 namespace base { | 15 namespace base { |
16 class SingleThreadTaskRunner; | 16 class SingleThreadTaskRunner; |
17 } | 17 } |
18 | 18 |
19 namespace media { | 19 namespace media { |
20 | 20 |
21 // An AudioDecoder that proxies to an interfaces::AudioDecoder. | 21 // An AudioDecoder that proxies to a mojom::AudioDecoder. |
22 class MojoAudioDecoder : public AudioDecoder, | 22 class MojoAudioDecoder : public AudioDecoder, public mojom::AudioDecoderClient { |
23 public interfaces::AudioDecoderClient { | |
24 public: | 23 public: |
25 MojoAudioDecoder(scoped_refptr<base::SingleThreadTaskRunner> task_runner, | 24 MojoAudioDecoder(scoped_refptr<base::SingleThreadTaskRunner> task_runner, |
26 interfaces::AudioDecoderPtr remote_decoder); | 25 mojom::AudioDecoderPtr remote_decoder); |
27 ~MojoAudioDecoder() final; | 26 ~MojoAudioDecoder() final; |
28 | 27 |
29 // AudioDecoder implementation. | 28 // AudioDecoder implementation. |
30 std::string GetDisplayName() const final; | 29 std::string GetDisplayName() const final; |
31 void Initialize(const AudioDecoderConfig& config, | 30 void Initialize(const AudioDecoderConfig& config, |
32 CdmContext* cdm_context, | 31 CdmContext* cdm_context, |
33 const InitCB& init_cb, | 32 const InitCB& init_cb, |
34 const OutputCB& output_cb) final; | 33 const OutputCB& output_cb) final; |
35 void Decode(const scoped_refptr<DecoderBuffer>& buffer, | 34 void Decode(const scoped_refptr<DecoderBuffer>& buffer, |
36 const DecodeCB& decode_cb) final; | 35 const DecodeCB& decode_cb) final; |
37 void Reset(const base::Closure& closure) final; | 36 void Reset(const base::Closure& closure) final; |
38 bool NeedsBitstreamConversion() const final; | 37 bool NeedsBitstreamConversion() const final; |
39 | 38 |
40 // AudioDecoderClient implementation. | 39 // AudioDecoderClient implementation. |
41 void OnBufferDecoded(interfaces::AudioBufferPtr buffer) final; | 40 void OnBufferDecoded(mojom::AudioBufferPtr buffer) final; |
42 | 41 |
43 private: | 42 private: |
44 // Callback for connection error on |remote_decoder_|. | 43 // Callback for connection error on |remote_decoder_|. |
45 void OnConnectionError(); | 44 void OnConnectionError(); |
46 | 45 |
47 // Called when |remote_decoder_| finished initialization. | 46 // Called when |remote_decoder_| finished initialization. |
48 void OnInitialized(bool success, bool needs_bitstream_conversion); | 47 void OnInitialized(bool success, bool needs_bitstream_conversion); |
49 | 48 |
50 // Called when |remote_decoder_| accepted or rejected DecoderBuffer. | 49 // Called when |remote_decoder_| accepted or rejected DecoderBuffer. |
51 void OnDecodeStatus(interfaces::AudioDecoder::DecodeStatus decode_status); | 50 void OnDecodeStatus(mojom::AudioDecoder::DecodeStatus decode_status); |
52 | 51 |
53 // called when |remote_decoder_| finished Reset() sequence. | 52 // called when |remote_decoder_| finished Reset() sequence. |
54 void OnResetDone(); | 53 void OnResetDone(); |
55 | 54 |
56 // A helper method that creates data pipe and sets the data connection to | 55 // A helper method that creates data pipe and sets the data connection to |
57 // the service. | 56 // the service. |
58 void CreateDataPipe(); | 57 void CreateDataPipe(); |
59 | 58 |
60 // A helper method to serialize the data section of DecoderBuffer into pipe. | 59 // A helper method to serialize the data section of DecoderBuffer into pipe. |
61 interfaces::DecoderBufferPtr TransferDecoderBuffer( | 60 mojom::DecoderBufferPtr TransferDecoderBuffer( |
62 const scoped_refptr<DecoderBuffer>& media_buffer); | 61 const scoped_refptr<DecoderBuffer>& media_buffer); |
63 | 62 |
64 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 63 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
65 | 64 |
66 // This class is constructed on one thread and used exclusively on another | 65 // This class is constructed on one thread and used exclusively on another |
67 // thread. This member is used to safely pass the AudioDecoderPtr from one | 66 // thread. This member is used to safely pass the AudioDecoderPtr from one |
68 // thread to another. It is set in the constructor and is consumed in | 67 // thread to another. It is set in the constructor and is consumed in |
69 // Initialize(). | 68 // Initialize(). |
70 interfaces::AudioDecoderPtrInfo remote_decoder_info_; | 69 mojom::AudioDecoderPtrInfo remote_decoder_info_; |
71 | 70 |
72 interfaces::AudioDecoderPtr remote_decoder_; | 71 mojom::AudioDecoderPtr remote_decoder_; |
73 | 72 |
74 // DataPipe for serializing the data section of DecoderBuffer. | 73 // DataPipe for serializing the data section of DecoderBuffer. |
75 mojo::ScopedDataPipeProducerHandle producer_handle_; | 74 mojo::ScopedDataPipeProducerHandle producer_handle_; |
76 | 75 |
77 // Binding for AudioDecoderClient, bound to the |task_runner_|. | 76 // Binding for AudioDecoderClient, bound to the |task_runner_|. |
78 mojo::Binding<AudioDecoderClient> binding_; | 77 mojo::Binding<AudioDecoderClient> binding_; |
79 | 78 |
80 // We call the following callbacks to pass the information to the pipeline. | 79 // We call the following callbacks to pass the information to the pipeline. |
81 // |output_cb_| is permanent while other three are called only once, | 80 // |output_cb_| is permanent while other three are called only once, |
82 // |decode_cb_| and |reset_cb_| are replaced by every by Decode() and Reset(). | 81 // |decode_cb_| and |reset_cb_| are replaced by every by Decode() and Reset(). |
83 InitCB init_cb_; | 82 InitCB init_cb_; |
84 OutputCB output_cb_; | 83 OutputCB output_cb_; |
85 DecodeCB decode_cb_; | 84 DecodeCB decode_cb_; |
86 base::Closure reset_cb_; | 85 base::Closure reset_cb_; |
87 | 86 |
88 // Flag that is set if we got connection error. Never cleared. | 87 // Flag that is set if we got connection error. Never cleared. |
89 bool has_connection_error_; | 88 bool has_connection_error_; |
90 | 89 |
91 // Flag telling whether this decoder requires bitstream conversion. | 90 // Flag telling whether this decoder requires bitstream conversion. |
92 // Passed from |remote_decoder_| as a result of its initialization. | 91 // Passed from |remote_decoder_| as a result of its initialization. |
93 bool needs_bitstream_conversion_; | 92 bool needs_bitstream_conversion_; |
94 | 93 |
95 DISALLOW_COPY_AND_ASSIGN(MojoAudioDecoder); | 94 DISALLOW_COPY_AND_ASSIGN(MojoAudioDecoder); |
96 }; | 95 }; |
97 | 96 |
98 } // namespace media | 97 } // namespace media |
99 | 98 |
100 #endif // MEDIA_MOJO_SERVICES_MOJO_AUDIO_DECODER_H_ | 99 #endif // MEDIA_MOJO_SERVICES_MOJO_AUDIO_DECODER_H_ |
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