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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_FILTERS_DECODER_SELECTOR_H_ | 5 #ifndef MEDIA_FILTERS_DECODER_SELECTOR_H_ |
| 6 #define MEDIA_FILTERS_DECODER_SELECTOR_H_ | 6 #define MEDIA_FILTERS_DECODER_SELECTOR_H_ |
| 7 | 7 |
| 8 #include <memory> | 8 #include <memory> |
| 9 #include <vector> |
| 9 | 10 |
| 10 #include "base/callback.h" | 11 #include "base/callback.h" |
| 11 #include "base/macros.h" | 12 #include "base/macros.h" |
| 12 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
| 13 #include "base/memory/scoped_vector.h" | |
| 14 #include "base/memory/weak_ptr.h" | 14 #include "base/memory/weak_ptr.h" |
| 15 #include "build/build_config.h" | 15 #include "build/build_config.h" |
| 16 #include "media/base/demuxer_stream.h" | 16 #include "media/base/demuxer_stream.h" |
| 17 #include "media/base/pipeline_status.h" | 17 #include "media/base/pipeline_status.h" |
| 18 #include "media/filters/decoder_stream_traits.h" | 18 #include "media/filters/decoder_stream_traits.h" |
| 19 | 19 |
| 20 namespace base { | 20 namespace base { |
| 21 class SingleThreadTaskRunner; | 21 class SingleThreadTaskRunner; |
| 22 } | 22 } |
| 23 | 23 |
| (...skipping 11 matching lines...) Expand all Loading... |
| 35 template<DemuxerStream::Type StreamType> | 35 template<DemuxerStream::Type StreamType> |
| 36 class MEDIA_EXPORT DecoderSelector { | 36 class MEDIA_EXPORT DecoderSelector { |
| 37 public: | 37 public: |
| 38 typedef DecoderStreamTraits<StreamType> StreamTraits; | 38 typedef DecoderStreamTraits<StreamType> StreamTraits; |
| 39 typedef typename StreamTraits::DecoderType Decoder; | 39 typedef typename StreamTraits::DecoderType Decoder; |
| 40 typedef typename StreamTraits::DecoderConfigType DecoderConfig; | 40 typedef typename StreamTraits::DecoderConfigType DecoderConfig; |
| 41 | 41 |
| 42 // Callback to create a list of decoders to select from. | 42 // Callback to create a list of decoders to select from. |
| 43 // TODO(xhwang): Use a DecoderFactory to create decoders one by one as needed, | 43 // TODO(xhwang): Use a DecoderFactory to create decoders one by one as needed, |
| 44 // instead of creating a list of decoders all at once. | 44 // instead of creating a list of decoders all at once. |
| 45 using CreateDecodersCB = base::RepeatingCallback<ScopedVector<Decoder>()>; | 45 using CreateDecodersCB = |
| 46 base::RepeatingCallback<std::vector<std::unique_ptr<Decoder>>()>; |
| 46 | 47 |
| 47 // Indicates completion of Decoder selection. | 48 // Indicates completion of Decoder selection. |
| 48 // - First parameter: The initialized Decoder. If it's set to NULL, then | 49 // - First parameter: The initialized Decoder. If it's set to NULL, then |
| 49 // Decoder initialization failed. | 50 // Decoder initialization failed. |
| 50 // - Second parameter: The initialized DecryptingDemuxerStream. If it's not | 51 // - Second parameter: The initialized DecryptingDemuxerStream. If it's not |
| 51 // NULL, then a DecryptingDemuxerStream is created and initialized to do | 52 // NULL, then a DecryptingDemuxerStream is created and initialized to do |
| 52 // decryption for the initialized Decoder. | 53 // decryption for the initialized Decoder. |
| 53 // Note: The caller owns selected Decoder and DecryptingDemuxerStream. | 54 // Note: The caller owns selected Decoder and DecryptingDemuxerStream. |
| 54 // The caller should call DecryptingDemuxerStream::Reset() before | 55 // The caller should call DecryptingDemuxerStream::Reset() before |
| 55 // calling Decoder::Reset() to release any pending decryption or read. | 56 // calling Decoder::Reset() to release any pending decryption or read. |
| (...skipping 53 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 109 // Could be the |stream| passed in SelectDecoder, or |decrypted_stream_| when | 110 // Could be the |stream| passed in SelectDecoder, or |decrypted_stream_| when |
| 110 // a DecryptingDemuxerStream is selected. | 111 // a DecryptingDemuxerStream is selected. |
| 111 DemuxerStream* input_stream_; | 112 DemuxerStream* input_stream_; |
| 112 | 113 |
| 113 CdmContext* cdm_context_; | 114 CdmContext* cdm_context_; |
| 114 std::string blacklisted_decoder_; | 115 std::string blacklisted_decoder_; |
| 115 SelectDecoderCB select_decoder_cb_; | 116 SelectDecoderCB select_decoder_cb_; |
| 116 typename Decoder::OutputCB output_cb_; | 117 typename Decoder::OutputCB output_cb_; |
| 117 base::Closure waiting_for_decryption_key_cb_; | 118 base::Closure waiting_for_decryption_key_cb_; |
| 118 | 119 |
| 119 ScopedVector<Decoder> decoders_; | 120 std::vector<std::unique_ptr<Decoder>> decoders_; |
| 120 | 121 |
| 121 std::unique_ptr<Decoder> decoder_; | 122 std::unique_ptr<Decoder> decoder_; |
| 122 std::unique_ptr<DecryptingDemuxerStream> decrypted_stream_; | 123 std::unique_ptr<DecryptingDemuxerStream> decrypted_stream_; |
| 123 | 124 |
| 124 // Config of the |input_stream| used to initialize decoders. | 125 // Config of the |input_stream| used to initialize decoders. |
| 125 DecoderConfig config_; | 126 DecoderConfig config_; |
| 126 | 127 |
| 127 // NOTE: Weak pointers must be invalidated before all other member variables. | 128 // NOTE: Weak pointers must be invalidated before all other member variables. |
| 128 base::WeakPtrFactory<DecoderSelector> weak_ptr_factory_; | 129 base::WeakPtrFactory<DecoderSelector> weak_ptr_factory_; |
| 129 | 130 |
| 130 DISALLOW_IMPLICIT_CONSTRUCTORS(DecoderSelector); | 131 DISALLOW_IMPLICIT_CONSTRUCTORS(DecoderSelector); |
| 131 }; | 132 }; |
| 132 | 133 |
| 133 typedef DecoderSelector<DemuxerStream::VIDEO> VideoDecoderSelector; | 134 typedef DecoderSelector<DemuxerStream::VIDEO> VideoDecoderSelector; |
| 134 typedef DecoderSelector<DemuxerStream::AUDIO> AudioDecoderSelector; | 135 typedef DecoderSelector<DemuxerStream::AUDIO> AudioDecoderSelector; |
| 135 | 136 |
| 136 } // namespace media | 137 } // namespace media |
| 137 | 138 |
| 138 #endif // MEDIA_FILTERS_DECODER_SELECTOR_H_ | 139 #endif // MEDIA_FILTERS_DECODER_SELECTOR_H_ |
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