diff options
Diffstat (limited to 'src/lib/resampler.cc')
| -rw-r--r-- | src/lib/resampler.cc | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/lib/resampler.cc b/src/lib/resampler.cc index 01d71c79b..d08e7bc38 100644 --- a/src/lib/resampler.cc +++ b/src/lib/resampler.cc @@ -67,9 +67,19 @@ Resampler::set_fast () } } -shared_ptr<const AudioBuffers> -Resampler::run (shared_ptr<const AudioBuffers> in) +pair<shared_ptr<const AudioBuffers>, Frame> +Resampler::run (shared_ptr<const AudioBuffers> in, Frame frame) { + if (!_next_in || !_next_out || _next_in.get() != frame) { + /* Either there was a discontinuity in the input or this is the first input; + reset _next_out. + */ + _next_out = lrintf (frame * _out_rate / _in_rate); + } + + /* Expected next input frame */ + _next_in = frame + in->frames (); + int in_frames = in->frames (); int in_offset = 0; int out_offset = 0; @@ -142,7 +152,12 @@ Resampler::run (shared_ptr<const AudioBuffers> in) delete[] data.data_out; } - return resampled; + Frame out_frame = _next_out.get (); + + /* Expected next output frame */ + _next_out = _next_out.get() + resampled->frames(); + + return make_pair (resampled, out_frame); } shared_ptr<const AudioBuffers> |