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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 // A fake media source that generates video and audio frames to a cast | 5 // A fake media source that generates video and audio frames to a cast |
6 // sender. | 6 // sender. |
7 // This class can transcode a WebM file using FFmpeg. It can also | 7 // This class can transcode a WebM file using FFmpeg. It can also |
8 // generate an animation and audio of fixed frequency. | 8 // generate an animation and audio of fixed frequency. |
9 | 9 |
10 #ifndef MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ | 10 #ifndef MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ |
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48 | 48 |
49 class FakeMediaSource : public media::AudioConverter::InputCallback { | 49 class FakeMediaSource : public media::AudioConverter::InputCallback { |
50 public: | 50 public: |
51 // |task_runner| is to schedule decoding tasks. | 51 // |task_runner| is to schedule decoding tasks. |
52 // |clock| is used by this source but is not owned. | 52 // |clock| is used by this source but is not owned. |
53 // |audio_config| is the desired audio config. | 53 // |audio_config| is the desired audio config. |
54 // |video_config| is the desired video config. | 54 // |video_config| is the desired video config. |
55 // |keep_frames| is true if all VideoFrames are saved in a queue. | 55 // |keep_frames| is true if all VideoFrames are saved in a queue. |
56 FakeMediaSource(scoped_refptr<base::SingleThreadTaskRunner> task_runner, | 56 FakeMediaSource(scoped_refptr<base::SingleThreadTaskRunner> task_runner, |
57 base::TickClock* clock, | 57 base::TickClock* clock, |
58 const AudioSenderConfig& audio_config, | 58 const FrameSenderConfig& audio_config, |
59 const VideoSenderConfig& video_config, | 59 const FrameSenderConfig& video_config, |
60 bool keep_frames); | 60 bool keep_frames); |
61 ~FakeMediaSource() final; | 61 ~FakeMediaSource() final; |
62 | 62 |
63 // Transcode this file as the source of video and audio frames. | 63 // Transcode this file as the source of video and audio frames. |
64 // If |final_fps| is non zero then the file is played at the desired rate. | 64 // If |final_fps| is non zero then the file is played at the desired rate. |
65 void SetSourceFile(const base::FilePath& video_file, int final_fps); | 65 void SetSourceFile(const base::FilePath& video_file, int final_fps); |
66 | 66 |
67 // Set to true to randomly change the frame size at random points in time. | 67 // Set to true to randomly change the frame size at random points in time. |
68 // Only applies when SetSourceFile() is not used. | 68 // Only applies when SetSourceFile() is not used. |
69 void SetVariableFrameSizeMode(bool enabled); | 69 void SetVariableFrameSizeMode(bool enabled); |
70 | 70 |
71 void Start(scoped_refptr<AudioFrameInput> audio_frame_input, | 71 void Start(scoped_refptr<AudioFrameInput> audio_frame_input, |
72 scoped_refptr<VideoFrameInput> video_frame_input); | 72 scoped_refptr<VideoFrameInput> video_frame_input); |
73 | 73 |
74 const VideoSenderConfig& get_video_config() const { return video_config_; } | 74 const FrameSenderConfig& get_video_config() const { return video_config_; } |
75 | 75 |
76 scoped_refptr<media::VideoFrame> PopOldestInsertedVideoFrame(); | 76 scoped_refptr<media::VideoFrame> PopOldestInsertedVideoFrame(); |
77 | 77 |
78 private: | 78 private: |
79 bool is_transcoding_audio() const { return audio_stream_index_ >= 0; } | 79 bool is_transcoding_audio() const { return audio_stream_index_ >= 0; } |
80 bool is_transcoding_video() const { return video_stream_index_ >= 0; } | 80 bool is_transcoding_video() const { return video_stream_index_ >= 0; } |
81 | 81 |
82 void SendNextFrame(); | 82 void SendNextFrame(); |
83 void SendNextFakeFrame(); | 83 void SendNextFakeFrame(); |
84 | 84 |
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111 double ProvideInput(media::AudioBus* output_bus, | 111 double ProvideInput(media::AudioBus* output_bus, |
112 uint32_t frames_delayed) final; | 112 uint32_t frames_delayed) final; |
113 | 113 |
114 AVStream* av_audio_stream(); | 114 AVStream* av_audio_stream(); |
115 AVStream* av_video_stream(); | 115 AVStream* av_video_stream(); |
116 AVCodecContext* av_audio_context(); | 116 AVCodecContext* av_audio_context(); |
117 AVCodecContext* av_video_context(); | 117 AVCodecContext* av_video_context(); |
118 | 118 |
119 const scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 119 const scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
120 const media::AudioParameters output_audio_params_; | 120 const media::AudioParameters output_audio_params_; |
121 const VideoSenderConfig video_config_; | 121 const FrameSenderConfig video_config_; |
122 const bool keep_frames_; | 122 const bool keep_frames_; |
123 bool variable_frame_size_mode_; | 123 bool variable_frame_size_mode_; |
124 gfx::Size current_frame_size_; | 124 gfx::Size current_frame_size_; |
125 base::TimeTicks next_frame_size_change_time_; | 125 base::TimeTicks next_frame_size_change_time_; |
126 scoped_refptr<AudioFrameInput> audio_frame_input_; | 126 scoped_refptr<AudioFrameInput> audio_frame_input_; |
127 scoped_refptr<VideoFrameInput> video_frame_input_; | 127 scoped_refptr<VideoFrameInput> video_frame_input_; |
128 uint8_t synthetic_count_; | 128 uint8_t synthetic_count_; |
129 base::TickClock* const clock_; // Not owned by this class. | 129 base::TickClock* const clock_; // Not owned by this class. |
130 | 130 |
131 // Time when the stream starts. | 131 // Time when the stream starts. |
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169 // NOTE: Weak pointers must be invalidated before all other member variables. | 169 // NOTE: Weak pointers must be invalidated before all other member variables. |
170 base::WeakPtrFactory<FakeMediaSource> weak_factory_; | 170 base::WeakPtrFactory<FakeMediaSource> weak_factory_; |
171 | 171 |
172 DISALLOW_COPY_AND_ASSIGN(FakeMediaSource); | 172 DISALLOW_COPY_AND_ASSIGN(FakeMediaSource); |
173 }; | 173 }; |
174 | 174 |
175 } // namespace cast | 175 } // namespace cast |
176 } // namespace media | 176 } // namespace media |
177 | 177 |
178 #endif // MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ | 178 #endif // MEDIA_CAST_TEST_FAKE_MEDIA_SOURCE_H_ |
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