diff options
| author | Carl Hetherington <cth@carlh.net> | 2014-03-04 20:22:47 +0000 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2014-03-04 20:22:47 +0000 |
| commit | 1b1bc528ee5ca1fee1bd33f9fb6f79cd551e3b33 (patch) | |
| tree | d60b9fb573dd8d6ab89036fb8788cd1b1c69aada /src/lib/audio_content.cc | |
| parent | 6d8bcba724be622739a749064466901486304cee (diff) | |
New DCPTime/ContentTime types.
Diffstat (limited to 'src/lib/audio_content.cc')
| -rw-r--r-- | src/lib/audio_content.cc | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/src/lib/audio_content.cc b/src/lib/audio_content.cc index 3c0d13ba9..1def7e5cc 100644 --- a/src/lib/audio_content.cc +++ b/src/lib/audio_content.cc @@ -149,27 +149,3 @@ AudioContent::technical_summary () const { return String::compose ("audio: channels %1, length %2, raw rate %3, out rate %4", audio_channels(), audio_length(), content_audio_frame_rate(), output_audio_frame_rate()); } - -/** Note: this is not particularly fast, as the FrameRateChange lookup - * is not very intelligent. - * - * @param t Some duration to convert. - * @param at The time within the DCP to get the active frame rate change from; i.e. a point at which - * the `controlling' video content is active. - */ -AudioFrame -AudioContent::time_to_content_audio_frames (DCPTime t, DCPTime at) const -{ - shared_ptr<const Film> film = _film.lock (); - assert (film); - - /* Consider the case where we're running a 25fps video at 24fps (i.e. slow) - Our audio is at 44.1kHz. We will resample it to 48000 * 25 / 24 and then - run it at 48kHz (i.e. slow, to match). - - After 1 second, we'll have run the equivalent of 44.1kHz * 24 / 25 samples - in the source. - */ - - return rint (t * content_audio_frame_rate() * film->active_frame_rate_change(at).speed_up / TIME_HZ); -} |
