-/** @class AudioBuffers
- * @brief A class to hold multi-channel audio data in float format.
- */
-class AudioBuffers
-{
-public:
- AudioBuffers (int channels, int frames);
- AudioBuffers (AudioBuffers const &);
- AudioBuffers (boost::shared_ptr<const AudioBuffers>);
- ~AudioBuffers ();
-
- float** data () const {
- return _data;
- }
-
- float* data (int) const;
-
- int channels () const {
- return _channels;
- }
-
- int frames () const {
- return _frames;
- }
-
- void set_frames (int f);
-
- void make_silent ();
- void make_silent (int c);
-
- void copy_from (AudioBuffers* from, int frames_to_copy, int read_offset, int write_offset);
- void move (int from, int to, int frames);
- void accumulate (boost::shared_ptr<const AudioBuffers>, int, int);
-
-private:
- /** Number of channels */
- int _channels;
- /** Number of frames (where a frame is one sample across all channels) */
- int _frames;
- /** Number of frames that _data can hold */
- int _allocated_frames;
- /** Audio data (so that, e.g. _data[2][6] is channel 2, sample 6) */
- float** _data;
-};
-
-extern int64_t video_frames_to_audio_frames (ContentVideoFrame v, float audio_sample_rate, float frames_per_second);
-extern std::pair<std::string, int> cpu_info ();