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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 <stddef.h> | 8 #include <stddef.h> |
| 9 | 9 |
| 10 #include "base/callback.h" | 10 #include "base/callback.h" |
| 11 #include "base/macros.h" | 11 #include "base/macros.h" |
| 12 #include "base/memory/scoped_vector.h" | 12 #include "base/memory/scoped_vector.h" |
| 13 #include "base/memory/weak_ptr.h" | 13 #include "base/memory/weak_ptr.h" |
| 14 #include "media/base/demuxer_stream_provider.h" | 14 #include "media/base/demuxer_stream_provider.h" |
| 15 #include "media/mojo/services/mojo_demuxer_stream_adapter.h" | 15 #include "media/mojo/services/mojo_demuxer_stream_adapter.h" |
| 16 | 16 |
| 17 namespace media { | 17 namespace media { |
| 18 | 18 |
| 19 // DemuxerStreamProvider shim for interfaces::DemuxerStreams. | 19 // DemuxerStreamProvider shim for mojom::DemuxerStreams. |
| 20 class DemuxerStreamProviderShim : public DemuxerStreamProvider { | 20 class DemuxerStreamProviderShim : public DemuxerStreamProvider { |
| 21 public: | 21 public: |
| 22 // Constructs the shim; at least a single audio or video stream must be | 22 // Constructs the shim; at least a single audio or video stream must be |
| 23 // provided. |demuxer_ready_cb| will be called once the streams have been | 23 // provided. |demuxer_ready_cb| will be called once the streams have been |
| 24 // initialized. Calling any method before then is an error. | 24 // initialized. Calling any method before then is an error. |
| 25 DemuxerStreamProviderShim(interfaces::DemuxerStreamPtr audio, | 25 DemuxerStreamProviderShim(mojom::DemuxerStreamPtr audio, |
| 26 interfaces::DemuxerStreamPtr video, | 26 mojom::DemuxerStreamPtr video, |
| 27 const base::Closure& demuxer_ready_cb); | 27 const base::Closure& demuxer_ready_cb); |
| 28 ~DemuxerStreamProviderShim() override; | 28 ~DemuxerStreamProviderShim() override; |
| 29 | 29 |
| 30 // DemuxerStreamProvider interface. | 30 // DemuxerStreamProvider interface. |
| 31 DemuxerStream* GetStream(DemuxerStream::Type type) override; | 31 DemuxerStream* GetStream(DemuxerStream::Type type) override; |
| 32 | 32 |
| 33 private: | 33 private: |
| 34 // Called as each interfaces::DemuxerStream becomes ready. Once all streams | 34 // Called as each mojom::DemuxerStream becomes ready. Once all streams |
| 35 // are ready it will fire the |demuxer_ready_cb_| provided during | 35 // are ready it will fire the |demuxer_ready_cb_| provided during |
| 36 // construction. | 36 // construction. |
| 37 void OnStreamReady(); | 37 void OnStreamReady(); |
| 38 | 38 |
| 39 // Stored copy the ready callback provided during construction; cleared once | 39 // Stored copy the ready callback provided during construction; cleared once |
| 40 // all streams are ready. | 40 // all streams are ready. |
| 41 base::Closure demuxer_ready_cb_; | 41 base::Closure demuxer_ready_cb_; |
| 42 | 42 |
| 43 // Scoped container for demuxer stream adapters which interface with the | 43 // Scoped container for demuxer stream adapters which interface with the |
| 44 // mojo level demuxer streams. |streams_ready_| tracks how many streams are | 44 // mojo level demuxer streams. |streams_ready_| tracks how many streams are |
| 45 // ready and is used by OnStreamReady() to know when |demuxer_ready_cb_| | 45 // ready and is used by OnStreamReady() to know when |demuxer_ready_cb_| |
| 46 // should be fired. | 46 // should be fired. |
| 47 ScopedVector<MojoDemuxerStreamAdapter> streams_; | 47 ScopedVector<MojoDemuxerStreamAdapter> streams_; |
| 48 size_t streams_ready_; | 48 size_t streams_ready_; |
| 49 | 49 |
| 50 // WeakPtrFactorys must always be the last member variable. | 50 // WeakPtrFactorys must always be the last member variable. |
| 51 base::WeakPtrFactory<DemuxerStreamProviderShim> weak_factory_; | 51 base::WeakPtrFactory<DemuxerStreamProviderShim> weak_factory_; |
| 52 | 52 |
| 53 DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProviderShim); | 53 DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProviderShim); |
| 54 }; | 54 }; |
| 55 | 55 |
| 56 } // namespace media | 56 } // namespace media |
| 57 | 57 |
| 58 #endif // MEDIA_MOJO_SERVICES_DEMUXER_STREAM_PROVIDER_SHIM_H_ | 58 #endif // MEDIA_MOJO_SERVICES_DEMUXER_STREAM_PROVIDER_SHIM_H_ |
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