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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_STREAM_H_ | 5 #ifndef MEDIA_FILTERS_DECODER_STREAM_H_ |
6 #define MEDIA_FILTERS_DECODER_STREAM_H_ | 6 #define MEDIA_FILTERS_DECODER_STREAM_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 #include <list> | 9 #include <list> |
10 #include <memory> | 10 #include <memory> |
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105 | 105 |
106 // Allows callers to register for notification of config changes; this is | 106 // Allows callers to register for notification of config changes; this is |
107 // called immediately after receiving the 'kConfigChanged' status from the | 107 // called immediately after receiving the 'kConfigChanged' status from the |
108 // DemuxerStream, before any action is taken to handle the config change. | 108 // DemuxerStream, before any action is taken to handle the config change. |
109 typedef base::Closure ConfigChangeObserverCB; | 109 typedef base::Closure ConfigChangeObserverCB; |
110 void set_config_change_observer( | 110 void set_config_change_observer( |
111 const ConfigChangeObserverCB& config_change_observer) { | 111 const ConfigChangeObserverCB& config_change_observer) { |
112 config_change_observer_cb_ = config_change_observer; | 112 config_change_observer_cb_ = config_change_observer; |
113 } | 113 } |
114 | 114 |
115 const Decoder* get_previous_decoder_for_testing() const { | |
116 return previous_decoder_.get(); | |
117 } | |
118 | |
119 int get_pending_buffers_size_for_testing() const { | 115 int get_pending_buffers_size_for_testing() const { |
120 return pending_buffers_.size(); | 116 return pending_buffers_.size(); |
121 } | 117 } |
122 | 118 |
123 int get_fallback_buffers_size_for_testing() const { | 119 int get_fallback_buffers_size_for_testing() const { |
124 return fallback_buffers_.size(); | 120 return fallback_buffers_.size(); |
125 } | 121 } |
126 | 122 |
127 private: | 123 private: |
128 enum State { | 124 enum State { |
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198 base::Closure reset_cb_; | 194 base::Closure reset_cb_; |
199 | 195 |
200 DemuxerStream* stream_; | 196 DemuxerStream* stream_; |
201 | 197 |
202 CdmContext* cdm_context_; | 198 CdmContext* cdm_context_; |
203 | 199 |
204 std::unique_ptr<DecoderSelector<StreamType>> decoder_selector_; | 200 std::unique_ptr<DecoderSelector<StreamType>> decoder_selector_; |
205 | 201 |
206 std::unique_ptr<Decoder> decoder_; | 202 std::unique_ptr<Decoder> decoder_; |
207 | 203 |
208 // When falling back from H/W decoding to S/W decoding, destructing the | 204 // Whether |decoder_| has produced a frame yet. Reset on fallback. |
209 // GpuVideoDecoder too early results in black frames being displayed. | 205 bool decoder_produced_a_frame_; |
210 // |previous_decoder_| is used to keep it alive. It is destroyed once we've | |
211 // decoded at least media::limits::kMaxVideoFrames frames after fallback. | |
212 int decoded_frames_since_fallback_; | |
213 std::unique_ptr<Decoder> previous_decoder_; | |
214 | 206 |
215 std::unique_ptr<DecryptingDemuxerStream> decrypting_demuxer_stream_; | 207 std::unique_ptr<DecryptingDemuxerStream> decrypting_demuxer_stream_; |
216 | 208 |
217 ConfigChangeObserverCB config_change_observer_cb_; | 209 ConfigChangeObserverCB config_change_observer_cb_; |
218 | 210 |
219 // An end-of-stream buffer has been sent for decoding, no more buffers should | 211 // An end-of-stream buffer has been sent for decoding, no more buffers should |
220 // be sent for decoding until it completes. | 212 // be sent for decoding until it completes. |
221 // TODO(sandersd): Turn this into a State. http://crbug.com/408316 | 213 // TODO(sandersd): Turn this into a State. http://crbug.com/408316 |
222 bool decoding_eos_; | 214 bool decoding_eos_; |
223 | 215 |
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261 | 253 |
262 template <> | 254 template <> |
263 int DecoderStream<DemuxerStream::AUDIO>::GetMaxDecodeRequests() const; | 255 int DecoderStream<DemuxerStream::AUDIO>::GetMaxDecodeRequests() const; |
264 | 256 |
265 typedef DecoderStream<DemuxerStream::VIDEO> VideoFrameStream; | 257 typedef DecoderStream<DemuxerStream::VIDEO> VideoFrameStream; |
266 typedef DecoderStream<DemuxerStream::AUDIO> AudioBufferStream; | 258 typedef DecoderStream<DemuxerStream::AUDIO> AudioBufferStream; |
267 | 259 |
268 } // namespace media | 260 } // namespace media |
269 | 261 |
270 #endif // MEDIA_FILTERS_DECODER_STREAM_H_ | 262 #endif // MEDIA_FILTERS_DECODER_STREAM_H_ |
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