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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_BASE_ANDROID_MEDIA_CODEC_DECODER_H_ | 5 #ifndef MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_ |
6 #define MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_ | 6 #define MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_ |
7 | 7 |
8 #include "base/android/scoped_java_ref.h" | 8 #include "base/android/scoped_java_ref.h" |
9 #include "base/callback.h" | 9 #include "base/callback.h" |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
13 #include "base/single_thread_task_runner.h" | 13 #include "base/single_thread_task_runner.h" |
14 #include "base/synchronization/lock.h" | 14 #include "base/synchronization/lock.h" |
15 #include "base/threading/thread.h" | 15 #include "base/threading/thread.h" |
16 #include "base/time/time.h" | 16 #include "base/time/time.h" |
17 #include "media/base/android/access_unit_queue.h" | 17 #include "media/base/android/access_unit_queue.h" |
18 #include "media/base/android/demuxer_stream_player_params.h" | 18 #include "media/base/android/demuxer_stream_player_params.h" |
19 | 19 |
20 namespace media { | 20 namespace media { |
21 | 21 |
| 22 class FrameStatistics; |
22 class MediaCodecBridge; | 23 class MediaCodecBridge; |
23 | 24 |
24 // The decoder for MediaCodecPlayer. | 25 // The decoder for MediaCodecPlayer. |
25 // This class accepts the incoming data into AccessUnitQueue and works with | 26 // This class accepts the incoming data into AccessUnitQueue and works with |
26 // MediaCodecBridge for decoding and rendering the frames. The MediaCodecPlayer | 27 // MediaCodecBridge for decoding and rendering the frames. The MediaCodecPlayer |
27 // has two decoder objects: audio and video. | 28 // has two decoder objects: audio and video. |
28 // | 29 // |
29 // The decoder works on two threads. The data from demuxer comes on Media | 30 // The decoder works on two threads. The data from demuxer comes on Media |
30 // thread. The commands from MediaCodecPlayer, such as Prefetch, Start, | 31 // thread. The commands from MediaCodecPlayer, such as Prefetch, Start, |
31 // RequestToStop also come on the Media thread. The operations with MediaCodec | 32 // RequestToStop also come on the Media thread. The operations with MediaCodec |
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158 // decoder_thread_name: | 159 // decoder_thread_name: |
159 // The thread name to be passed to decoder thread constructor. | 160 // The thread name to be passed to decoder thread constructor. |
160 MediaCodecDecoder( | 161 MediaCodecDecoder( |
161 const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner, | 162 const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner, |
162 const base::Closure& external_request_data_cb, | 163 const base::Closure& external_request_data_cb, |
163 const base::Closure& starvation_cb, | 164 const base::Closure& starvation_cb, |
164 const base::Closure& decoder_drained_cb, | 165 const base::Closure& decoder_drained_cb, |
165 const base::Closure& stop_done_cb, | 166 const base::Closure& stop_done_cb, |
166 const base::Closure& key_required_cb, | 167 const base::Closure& key_required_cb, |
167 const base::Closure& error_cb, | 168 const base::Closure& error_cb, |
168 const char* decoder_thread_name); | 169 const char* decoder_thread_name, |
| 170 FrameStatistics* frame_statistics); |
| 171 |
169 virtual ~MediaCodecDecoder(); | 172 virtual ~MediaCodecDecoder(); |
170 | 173 |
171 virtual const char* class_name() const; | 174 virtual const char* class_name() const; |
172 | 175 |
173 // MediaCodecDecoder exists through the whole lifetime of the player | 176 // MediaCodecDecoder exists through the whole lifetime of the player |
174 // to support dynamic addition and removal of the streams. | 177 // to support dynamic addition and removal of the streams. |
175 // This method returns true if the current stream (audio or video) | 178 // This method returns true if the current stream (audio or video) |
176 // is currently active. | 179 // is currently active. |
177 virtual bool HasStream() const = 0; | 180 virtual bool HasStream() const = 0; |
178 | 181 |
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294 #endif | 297 #endif |
295 | 298 |
296 // Helper methods. | 299 // Helper methods. |
297 | 300 |
298 // Synchroniously stop decoder thread. | 301 // Synchroniously stop decoder thread. |
299 void DoEmergencyStop(); | 302 void DoEmergencyStop(); |
300 | 303 |
301 // Returns true if we are in the process of sync stop. | 304 // Returns true if we are in the process of sync stop. |
302 bool InEmergencyStop() const { return GetState() == kInEmergencyStop; } | 305 bool InEmergencyStop() const { return GetState() == kInEmergencyStop; } |
303 | 306 |
304 // Notifies the decoder if the frame is the last one. | 307 // Notifies the decoder if the frame is the last one. Returns true if the |
305 void CheckLastFrame(bool eos_encountered, bool has_delayed_tasks); | 308 // current frame is the last frame. |
| 309 bool CheckLastFrame(bool eos_encountered, bool has_delayed_tasks); |
306 | 310 |
307 const char* AsString(RenderMode render_mode); | 311 const char* AsString(RenderMode render_mode); |
308 | 312 |
309 // Protected data. | 313 // Protected data. |
310 | 314 |
311 // Object for posting tasks on Media thread. | 315 // Object for posting tasks on Media thread. |
312 scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_; | 316 scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_; |
313 | 317 |
314 // Controls Android MediaCodec | 318 // Controls Android MediaCodec |
315 scoped_ptr<MediaCodecBridge> media_codec_bridge_; | 319 scoped_ptr<MediaCodecBridge> media_codec_bridge_; |
316 | 320 |
317 // We call MediaCodecBridge on this thread for both | 321 // We call MediaCodecBridge on this thread for both |
318 // input and output buffers. | 322 // input and output buffers. |
319 base::Thread decoder_thread_; | 323 base::Thread decoder_thread_; |
320 | 324 |
321 // The queue of access units. | 325 // The queue of access units. |
322 AccessUnitQueue au_queue_; | 326 AccessUnitQueue au_queue_; |
323 | 327 |
| 328 // Statistics for UMA. |
| 329 FrameStatistics* frame_statistics_; |
| 330 |
324 // Flag forces reconfiguration even if |media_codec_bridge_| exists. Currently | 331 // Flag forces reconfiguration even if |media_codec_bridge_| exists. Currently |
325 // is set by video decoder when the video surface changes. | 332 // is set by video decoder when the video surface changes. |
326 bool needs_reconfigure_; | 333 bool needs_reconfigure_; |
327 | 334 |
328 // Flag forces to drain decoder in the process of dynamic reconfiguration. | 335 // Flag forces to drain decoder in the process of dynamic reconfiguration. |
329 bool drain_decoder_; | 336 bool drain_decoder_; |
330 | 337 |
331 // For tests only. Forces to always reconfigure for |kConfigChanged| unit. | 338 // For tests only. Forces to always reconfigure for |kConfigChanged| unit. |
332 bool always_reconfigure_for_tests_; | 339 bool always_reconfigure_for_tests_; |
333 | 340 |
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443 | 450 |
444 // NOTE: Weak pointers must be invalidated before all other member variables. | 451 // NOTE: Weak pointers must be invalidated before all other member variables. |
445 base::WeakPtrFactory<MediaCodecDecoder> weak_factory_; | 452 base::WeakPtrFactory<MediaCodecDecoder> weak_factory_; |
446 | 453 |
447 DISALLOW_COPY_AND_ASSIGN(MediaCodecDecoder); | 454 DISALLOW_COPY_AND_ASSIGN(MediaCodecDecoder); |
448 }; | 455 }; |
449 | 456 |
450 } // namespace media | 457 } // namespace media |
451 | 458 |
452 #endif // MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_ | 459 #endif // MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_ |
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