ardour/livetrax
13
0
Fork 0
Code

LTC generator fix latency compensation.

Browse Source 
thinko: the generated timecode is offset and
not the timestamp when to send it.

git-svn-id: svn://localhost/ardour2/branches/3.0@13377 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Robin Gareus 2012-11-04 06:31:49 +00:00
parent fd9ca8354e
commit 0ede2d0088
1 changed files with 3 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
libs/ardour/session_ltc.cc
View File

@ -195,18 +195,11 @@ Session::ltc_tx_send_time_code_for_cycle (framepos_t start_frame, framepos_t end
#define SIGNUM(a) ( (a) < 0 ? -1 : 1)
bool speed_changed = false;
/* use port latency compensation */
#if 1
/* The generated timecode is offset by the port-latency,
/* port latency compensation:
* The _generated timecode_ is offset by the port-latency,
* therefore the offset depends on the direction of transport.
*/
framepos_t cycle_start_frame = (current_speed < 0) ? (start_frame + ltc_out_latency.max) : (start_frame - ltc_out_latency.max);
#else
/* This comes in handy when testing sync - record output on an A3 track
* see also http://tracker.ardour.org/view.php?id=5073
*/
framepos_t cycle_start_frame = start_frame;
#endif
framepos_t cycle_start_frame = (current_speed < 0) ? (start_frame - ltc_out_latency.max) : (start_frame + ltc_out_latency.max);
/* cycle-start may become negative due to latency compensation */
if (cycle_start_frame < 0) { cycle_start_frame = 0; }