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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_DEMUXER_STREAM_PROVIDER_SHIM_H_ | 5 #ifndef MEDIA_MOJO_SERVICES_DEMUXER_STREAM_PROVIDER_SHIM_H_ |
6 #define MEDIA_MOJO_SERVICES_DEMUXER_STREAM_PROVIDER_SHIM_H_ | 6 #define MEDIA_MOJO_SERVICES_DEMUXER_STREAM_PROVIDER_SHIM_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/memory/scoped_vector.h" | 9 #include "base/memory/scoped_vector.h" |
10 #include "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
11 #include "media/base/demuxer_stream_provider.h" | 11 #include "media/base/demuxer_stream_provider.h" |
12 #include "media/mojo/services/mojo_demuxer_stream_adapter.h" | 12 #include "media/mojo/services/mojo_demuxer_stream_adapter.h" |
13 | 13 |
14 namespace media { | 14 namespace media { |
15 | 15 |
16 // DemuxerStreamProvider shim for mojo::DemuxerStreams. | 16 // DemuxerStreamProvider shim for mojo::DemuxerStreams. |
17 class DemuxerStreamProviderShim : public DemuxerStreamProvider { | 17 class DemuxerStreamProviderShim : public DemuxerStreamProvider { |
18 public: | 18 public: |
19 // Constructs the shim; at least a single audio or video stream must be | 19 // Constructs the shim; at least a single audio or video stream must be |
20 // provided. |demuxer_ready_cb| will be called once the streams have been | 20 // provided. |demuxer_ready_cb| will be called once the streams have been |
21 // initialized. Calling any method before then is an error. | 21 // initialized. Calling any method before then is an error. |
22 DemuxerStreamProviderShim(mojo::DemuxerStreamPtr audio, | 22 DemuxerStreamProviderShim(mojo::DemuxerStreamPtr audio, |
23 mojo::DemuxerStreamPtr video, | 23 mojo::DemuxerStreamPtr video, |
24 const base::Closure& demuxer_ready_cb); | 24 const base::Closure& demuxer_ready_cb); |
25 ~DemuxerStreamProviderShim() override; | 25 ~DemuxerStreamProviderShim() override; |
26 | 26 |
27 // DemuxerStreamProvider interface. | 27 // DemuxerStreamProvider interface. |
28 DemuxerStream* GetStream(DemuxerStream::Type type) override; | 28 DemuxerStream* GetStream(DemuxerStream::Type type) override; |
29 Liveness GetLiveness() const override; | |
30 | 29 |
31 private: | 30 private: |
32 // Called as each mojo::DemuxerStream becomes ready. Once all streams are | 31 // Called as each mojo::DemuxerStream becomes ready. Once all streams are |
33 // ready it will fire the |demuxer_ready_cb_| provided during construction. | 32 // ready it will fire the |demuxer_ready_cb_| provided during construction. |
34 void OnStreamReady(); | 33 void OnStreamReady(); |
35 | 34 |
36 // Stored copy the ready callback provided during construction; cleared once | 35 // Stored copy the ready callback provided during construction; cleared once |
37 // all streams are ready. | 36 // all streams are ready. |
38 base::Closure demuxer_ready_cb_; | 37 base::Closure demuxer_ready_cb_; |
39 | 38 |
40 // Scoped container for demuxer stream adapters which interface with the | 39 // Scoped container for demuxer stream adapters which interface with the |
41 // mojo level demuxer streams. |streams_ready_| tracks how many streams are | 40 // mojo level demuxer streams. |streams_ready_| tracks how many streams are |
42 // ready and is used by OnStreamReady() to know when |demuxer_ready_cb_| | 41 // ready and is used by OnStreamReady() to know when |demuxer_ready_cb_| |
43 // should be fired. | 42 // should be fired. |
44 ScopedVector<MojoDemuxerStreamAdapter> streams_; | 43 ScopedVector<MojoDemuxerStreamAdapter> streams_; |
45 size_t streams_ready_; | 44 size_t streams_ready_; |
46 | 45 |
47 // WeakPtrFactorys must always be the last member variable. | 46 // WeakPtrFactorys must always be the last member variable. |
48 base::WeakPtrFactory<DemuxerStreamProviderShim> weak_factory_; | 47 base::WeakPtrFactory<DemuxerStreamProviderShim> weak_factory_; |
49 | 48 |
50 DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProviderShim); | 49 DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProviderShim); |
51 }; | 50 }; |
52 | 51 |
53 } // namespace media | 52 } // namespace media |
54 | 53 |
55 #endif // MEDIA_MOJO_SERVICES_DEMUXER_STREAM_PROVIDER_SHIM_H_ | 54 #endif // MEDIA_MOJO_SERVICES_DEMUXER_STREAM_PROVIDER_SHIM_H_ |
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