| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef STARBOARD_SHARED_STARBOARD_PLAYER_FILTER_AUDIO_RENDERER_SINK_H_ |
| #define STARBOARD_SHARED_STARBOARD_PLAYER_FILTER_AUDIO_RENDERER_SINK_H_ |
| |
| #include "starboard/audio_sink.h" |
| |
| namespace starboard { |
| namespace shared { |
| namespace starboard { |
| namespace player { |
| namespace filter { |
| |
| // The interface used by AudioRendererImpl to output audio samples. |
| class AudioRendererSink { |
| public: |
| class RenderCallback { |
| public: |
| virtual void OnUpdateSourceStatus(int* frames_in_buffer, |
| int* offset_in_frames, |
| bool* is_playing, |
| bool* is_eos_reached) = 0; |
| virtual void OnConsumeFrames(int frames_consumed) = 0; |
| |
| protected: |
| ~RenderCallback() {} |
| }; |
| |
| virtual ~AudioRendererSink() {} |
| |
| virtual bool IsAudioSampleTypeSupported( |
| SbMediaAudioSampleType audio_sample_type) const = 0; |
| virtual bool IsAudioFrameStorageTypeSupported( |
| SbMediaAudioFrameStorageType audio_frame_storage_type) const = 0; |
| virtual int GetNearestSupportedSampleFrequency( |
| int sampling_frequency_hz) const = 0; |
| |
| virtual bool HasStarted() const = 0; |
| virtual void Start(int channels, |
| int sampling_frequency_hz, |
| SbMediaAudioSampleType audio_sample_type, |
| SbMediaAudioFrameStorageType audio_frame_storage_type, |
| SbAudioSinkFrameBuffers frame_buffers, |
| int frames_per_channel, |
| RenderCallback* render_callback) = 0; |
| virtual void Stop() = 0; |
| |
| virtual void SetVolume(double volume) = 0; |
| virtual void SetPlaybackRate(double playback_rate) = 0; |
| }; |
| |
| } // namespace filter |
| } // namespace player |
| } // namespace starboard |
| } // namespace shared |
| } // namespace starboard |
| |
| #endif // STARBOARD_SHARED_STARBOARD_PLAYER_FILTER_AUDIO_RENDERER_SINK_H_ |