| // Copyright 2015 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 COBALT_AUDIO_AUDIO_NODE_OUTPUT_H_ |
| #define COBALT_AUDIO_AUDIO_NODE_OUTPUT_H_ |
| |
| #include <set> |
| #include <vector> |
| |
| #include "base/memory/ref_counted.h" |
| #include "cobalt/audio/audio_buffer.h" |
| #include "cobalt/audio/audio_helpers.h" |
| #if defined(COBALT_MEDIA_SOURCE_2016) |
| #include "cobalt/media/base/shell_audio_bus.h" |
| #else // defined(COBALT_MEDIA_SOURCE_2016) |
| #include "media/base/shell_audio_bus.h" |
| #endif // defined(COBALT_MEDIA_SOURCE_2016) |
| |
| namespace cobalt { |
| namespace audio { |
| |
| class AudioNode; |
| class AudioNodeInput; |
| |
| // This represents the output coming out of the AudioNode. |
| // It may be connected to one or more AudioNodeInputs. |
| class AudioNodeOutput : public base::RefCountedThreadSafe<AudioNodeOutput> { |
| #if defined(COBALT_MEDIA_SOURCE_2016) |
| typedef media::ShellAudioBus ShellAudioBus; |
| #else // defined(COBALT_MEDIA_SOURCE_2016) |
| typedef ::media::ShellAudioBus ShellAudioBus; |
| #endif // defined(COBALT_MEDIA_SOURCE_2016) |
| |
| public: |
| explicit AudioNodeOutput(AudioNode* owner_node) : owner_node_(owner_node) {} |
| ~AudioNodeOutput(); |
| |
| void AddInput(AudioNodeInput* input); |
| void RemoveInput(AudioNodeInput* input); |
| |
| void DisconnectAll(); |
| |
| scoped_ptr<ShellAudioBus> PassAudioBusFromSource(int32 number_of_frames, |
| SampleType sample_type); |
| |
| private: |
| AudioNode* const owner_node_; |
| std::set<AudioNodeInput*> inputs_; |
| }; |
| |
| } // namespace audio |
| } // namespace cobalt |
| |
| #endif // COBALT_AUDIO_AUDIO_NODE_OUTPUT_H_ |