float frames_per_second () const;
Size native_size () const;
int audio_channels () const;
int audio_sample_rate () const;
AVSampleFormat audio_sample_format () const;
int64_t audio_channel_layout () const;
float frames_per_second () const;
Size native_size () const;
int audio_channels () const;
int audio_sample_rate () const;
AVSampleFormat audio_sample_format () const;
int64_t audio_channel_layout () const;