ardour/livetrax
13
0
Fork 0
Code

Optimize stem and direct-out export

Browse Source
This commit is contained in:
Robin Gareus 2020-11-20 20:14:52 +01:00
parent a1f40979bd
commit a529122249
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
libs/ardour/export_channel.cc
View File

@ -120,12 +120,18 @@ PortExportChannel::read (Sample const *& data, samplecnt_t samples) const
Sample* port_buffer = ab.data();
ab.set_written (true);
(*di)->write (port_buffer, samples);
// TODO optimze, get_read_vector()
for (uint32_t i = 0; i < samples; ++i) {
Sample spl;
(*di)->read (&spl, 1);
_buffer[i] += spl;
PBD::RingBuffer<Sample>::rw_vector vec;
(*di)->get_read_vector (&vec);
assert (vec.len[0] + vec.len[1] >= samples);
samplecnt_t to_write = std::min (samples, (samplecnt_t) vec.len[0]);
mix_buffers_no_gain (&_buffer[0], vec.buf[0], to_write);
to_write = std::min (to_write - samples, (samplecnt_t) vec.len[1]);
if (to_write > 0) {
mix_buffers_no_gain (&_buffer[vec.len[0]], vec.buf[1], to_write);
}
++di;
}