+ DCPTime const video_frame = DCPTime::from_frames (1, _film->video_frame_rate ());
+ int const audio_frames = video_frame.frames_round(_film->audio_frame_rate());
+ float* interleaved = new float[_output_audio_channels * audio_frames];
+ shared_ptr<AudioBuffers> deinterleaved (new AudioBuffers (_output_audio_channels, audio_frames));
+ for (DCPTime i; i < _film->length(); i += video_frame) {
+ pair<shared_ptr<PlayerVideo>, DCPTime> v = _butler->get_video ();
+ video (v.first, v.second);
+ _butler->get_audio (interleaved, audio_frames);
+ /* XXX: inefficient; butler interleaves and we deinterleave again */
+ float* p = interleaved;
+ for (int j = 0; j < audio_frames; ++j) {
+ for (int k = 0; k < _output_audio_channels; ++k) {
+ deinterleaved->data(k)[j] = *p++;
+ }
+ }
+ audio (deinterleaved);
+ }
+ delete[] interleaved;