| // 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_FILE_READER_H_ |
| #define COBALT_AUDIO_AUDIO_FILE_READER_H_ |
| |
| #include "base/memory/scoped_ptr.h" // For scoped_array |
| |
| #include "cobalt/audio/audio_helpers.h" |
| |
| namespace cobalt { |
| namespace audio { |
| |
| class AudioFileReader { |
| public: |
| virtual ~AudioFileReader() {} |
| |
| static scoped_ptr<AudioFileReader> TryCreate(const uint8* data, size_t size, |
| SampleType sample_type); |
| |
| // Returns the sample data stored as float sample in planar form. Note that |
| // this function transfers the ownership of the data to the caller so it can |
| // only be called once. |
| virtual scoped_array<uint8> sample_data() = 0; |
| virtual float sample_rate() const = 0; |
| virtual int32 number_of_frames() const = 0; |
| virtual int32 number_of_channels() const = 0; |
| virtual SampleType sample_type() const = 0; |
| }; |
| |
| } // namespace audio |
| } // namespace cobalt |
| |
| #endif // COBALT_AUDIO_AUDIO_FILE_READER_H_ |