- if (_opt->audio_range) {
- shared_ptr<AudioBuffers> trimmed (new AudioBuffers (*data.get ()));
-
- /* Range that we are encoding */
- pair<int64_t, int64_t> required_range = _opt->audio_range.get();
- /* Range of this block of data */
- pair<int64_t, int64_t> this_range (_audio_frame, _audio_frame + trimmed->frames());
-
- if (this_range.second < required_range.first || required_range.second < this_range.first) {
- /* No part of this audio is within the required range */
- return;
- } else if (required_range.first >= this_range.first && required_range.first < this_range.second) {
- /* Trim start */
- int64_t const shift = required_range.first - this_range.first;
- trimmed->move (shift, 0, trimmed->frames() - shift);
- trimmed->set_frames (trimmed->frames() - shift);
- } else if (required_range.second >= this_range.first && required_range.second < this_range.second) {
- /* Trim end */
- trimmed->set_frames (required_range.second - this_range.first);
- }
-
- data = trimmed;
- }
-