View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0002569 | ardour | bugs | public | 2009-02-24 17:24 | 2012-05-23 15:09 |
| Reporter | sletz | Assigned To | paul | ||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | assigned | Resolution | open | ||
| Product Version | 3.0-beta1 | ||||
| Target Version | 3.0 | ||||
| Summary | 0002569: Transport management in JACK1 (latest SVN) and JACK2 (latest SVN) | ||||
| Description | A bug report concerning Transport management in JACK2 here: http://ccrma-mail.stanford.edu/pipermail/planetccrma/2009-January/015390.html The thing is that when "time master" in on in Ardour, changing the position cause the timebase callback to be called with a new_pos = true. The timebase callback takes a jack_position_t *pos parameter containing the *new* pos (in the "frame" field) but for some reason Ardour timebase callback set it back to the *current* pos. Then JACK2 takes this pos in account and the final position *does not* change... JACK1 seems not to take this changed pos value in account, and so the final position *does* change... The documentation says here : http://jackaudio.org/files/docs/html/group__TransportControl.html#g5861cf9b84a0a3c3f6ff0f193ca3ec2c "The timebase master may not use its pos argument to set pos->frame. To change position, use jack_transport_reposition() or jack_transport_locate(). These functions are realtime-safe, the timebase_callback can call them directly." This is not so clear for me, so who is right? - JACK1 and Ardour (changing the pos in the timebase callback) are both right? - or JACK1 and Ardour (changing the pos in the timebase callback) both have bugs that cancel each other? - or Ardour has a bug (changing the pos in the timebase callback) but JACK2 is correct and the resulting behaviour is incorrect... Thanks for any clarification! | ||||
| Tags | No tags attached. | ||||
| has duplicate | 0002856 | confirmed | jackdmp (jack2) & Timemaster issue |
|
|
i think its a bug in ardour. working a fix now. |
|
|
Did this get fixed? |
|
|
i did some work on it, but need to check it. will do so along with a general test of jack 1.9.6, which now appears "too old" to support 2.8.12 and 3. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2009-02-24 17:24 | sletz | New Issue | |
| 2010-04-24 10:28 | cth103 | Category | bugs => bugs2 |
| 2010-04-24 10:31 | cth103 | Category | bugs2 => bugs |
| 2010-06-07 18:21 | paul | Status | new => assigned |
| 2010-06-07 18:21 | paul | Assigned To | => paul |
| 2010-08-06 18:01 | paul | Relationship added | has duplicate 0002856 |
| 2010-08-31 14:31 | paul | cost | => 0.00 |
| 2010-08-31 14:31 | paul | Product Version | 2.7.1 => 3.0-beta1 |
| 2010-08-31 14:44 | paul | Note Added: 0008968 | |
| 2010-09-02 02:58 | cth103 | Target Version | => 3.0-beta1 |
| 2011-11-15 17:27 | cth103 | Target Version | 3.0-beta1 => 3.0-beta2 |
| 2011-11-21 00:12 | cth103 | Note Added: 0012145 | |
| 2011-11-21 01:03 | paul | Note Added: 0012147 | |
| 2012-01-10 20:46 | cth103 | Target Version | 3.0-beta2 => 3.0-beta3 |
| 2012-02-14 17:20 | paul | Target Version | 3.0-beta3 => 3.0 beta4 |
| 2012-05-23 15:09 | cth103 | Target Version | 3.0 beta4 => 3.0 |
