MPlayer loses JACK connections on every track change

[MountainX]

I'm running KX Studio on Kubuntu 12.04. I have a Komplete Audio K6. I use Claudia to save studios. I use SMPlayer GUI (which calls MPlayer). When I begin playing a folder of MP3 files (e.g., an audiobook) I set up the JACK connections so that MPlayer out_0 connects to alsa_pcm hw:K6,0:in1, in3, in5 and out_1 connects to in2, in4, in6. I save that. But with every track change, those connections are lost and MPlayer establishes connections only to in1 and in2.

Here is my XML config file:

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<?xml version="1.0"?>
<!--
ladish Studio configuration.
-->
<!-- Fri Oct  4 13:06:06 2013 -->
<studio>
  <jack>
    <conf>
      <parameter path="/engine/driver">alsa</parameter>
      <parameter path="/engine/realtime">false</parameter>
      <parameter path="/engine/realtime-priority">70</parameter>
      <parameter path="/engine/verbose">false</parameter>
      <parameter path="/engine/client-timeout">500</parameter>
      <parameter path="/engine/port-max">512</parameter>
      <parameter path="/engine/alias">true</parameter>
      <parameter path="/driver/device">hw:K6,0</parameter>
      <parameter path="/driver/capture">hw:K6,0</parameter>
      <parameter path="/driver/playback">hw:K6,0</parameter>
      <parameter path="/driver/rate">48000</parameter>
      <parameter path="/driver/period">2048</parameter>
      <parameter path="/driver/nperiods">3</parameter>
      <parameter path="/driver/hwmon">false</parameter>
      <parameter path="/driver/hwmeter">false</parameter>
      <parameter path="/driver/duplex">true</parameter>
      <parameter path="/driver/softmode">false</parameter>
      <parameter path="/driver/monitor">false</parameter>
      <parameter path="/driver/dither">n</parameter>
      <parameter path="/driver/shorts">false</parameter>
      <parameter path="/driver/hw-alias">false</parameter>
    </conf>
    <clients>
      <client name="alsa_pcm" uuid="3fb94e2d-9dc5-4dd7-baf5-562694bb6f80">
        <ports>
          <port name="hw:K6,0:out1" uuid="b3e04f9c-3838-4c70-947c-26e934d061c1" />
          <port name="hw:K6,0:out2" uuid="2478433e-a52b-4b01-a2bb-27800e959496" />
          <port name="hw:K6,0:out3" uuid="39a234b0-e091-4583-9940-82340672376d" />
          <port name="hw:K6,0:out4" uuid="428d0d95-0bcc-46f8-b520-8e8a31026eef" />
          <port name="hw:K6,0:out5" uuid="dcce9f4a-da5b-4a94-8f83-47851c34a048" />
          <port name="hw:K6,0:out6" uuid="705e66c1-ddc2-405a-831c-065afa8a14be" />
          <port name="hw:K6,0:in1" uuid="1535a730-73a1-498c-88b4-9514998c50c7" />
          <port name="hw:K6,0:in2" uuid="1115207d-d97b-4935-aa53-8829ab25d229" />
          <port name="hw:K6,0:in3" uuid="584c66cf-4083-4874-b677-d41f5395095b" />
          <port name="hw:K6,0:in4" uuid="b28baf8e-440e-4d10-92b0-b559f76b6025" />
          <port name="hw:K6,0:in5" uuid="3366fedb-a585-4e75-b288-baca5a432d34" />
          <port name="hw:K6,0:in6" uuid="06baf093-dd37-4fc7-b782-1384419cc667" />
        </ports>
      </client>
      <client name="claudia" uuid="dfbb15d6-a3e4-4d44-a0fb-4b1a5ca174ed">
        <ports>
        </ports>
      </client>
      <client name="cadence-aloop-daemon" uuid="625c2d47-4260-47ce-a4e5-f5de0bc049f2">
        <ports>
        </ports>
      </client>
      <client name="alsa2jack" uuid="ca5004d2-04d6-4ebc-ae84-ba656ebab2a4">
        <ports>
          <port name="capture_1" uuid="7c630c12-109e-48af-9b2d-dd6a02484fdf" />
          <port name="capture_2" uuid="bf55e118-b83d-4871-8091-801246500d59" />
        </ports>
      </client>
      <client name="jack2alsa" uuid="e36c12fa-070f-4814-b869-3da9aff25db1">
        <ports>
          <port name="playback_1" uuid="f6290d6d-69d9-4117-b674-586ca4342203" />
          <port name="playback_2" uuid="80a1b1d4-08b0-4d18-a86c-b9425b454a78" />
        </ports>
      </client>
      <client name="MPlayer [347]" uuid="2c7f35c9-4117-4432-9df4-11b442ca5114">
        <ports>
          <port name="out_0" uuid="d2a46e94-dda0-48fe-bce2-76808f58ef7f" />
          <port name="out_1" uuid="7b67a2ad-5ce7-4d36-8609-0a584b112670" />
        </ports>
      </client>
    </clients>
  </jack>
  <clients>
    <client name="alsa_pcm" uuid="5825f229-5190-448c-9fec-04735211f6fd" naming="app">
      <ports>
        <port name="hw:K6,0:out1" uuid="b3e04f9c-3838-4c70-947c-26e934d061c1" type="audio" direction="output" />
        <port name="hw:K6,0:out2" uuid="2478433e-a52b-4b01-a2bb-27800e959496" type="audio" direction="output" />
        <port name="hw:K6,0:out3" uuid="39a234b0-e091-4583-9940-82340672376d" type="audio" direction="output" />
        <port name="hw:K6,0:out4" uuid="428d0d95-0bcc-46f8-b520-8e8a31026eef" type="audio" direction="output" />
        <port name="hw:K6,0:out5" uuid="dcce9f4a-da5b-4a94-8f83-47851c34a048" type="audio" direction="output" />
        <port name="hw:K6,0:out6" uuid="705e66c1-ddc2-405a-831c-065afa8a14be" type="audio" direction="output" />
        <port name="hw:K6,0:in1" uuid="1535a730-73a1-498c-88b4-9514998c50c7" type="audio" direction="input" />
        <port name="hw:K6,0:in2" uuid="1115207d-d97b-4935-aa53-8829ab25d229" type="audio" direction="input" />
        <port name="hw:K6,0:in3" uuid="584c66cf-4083-4874-b677-d41f5395095b" type="audio" direction="input" />
        <port name="hw:K6,0:in4" uuid="b28baf8e-440e-4d10-92b0-b559f76b6025" type="audio" direction="input" />
        <port name="hw:K6,0:in5" uuid="3366fedb-a585-4e75-b288-baca5a432d34" type="audio" direction="input" />
        <port name="hw:K6,0:in6" uuid="06baf093-dd37-4fc7-b782-1384419cc667" type="audio" direction="input" />
      </ports>
      <dict>
        <key name="http://ladish.org/ns/canvas/x">1313.066924778761</key>
        <key name="http://ladish.org/ns/canvas/y">1121.0223082595871</key>
      </dict>
    </client>
    <client name="alsa2jack" uuid="4a11e614-afa7-4a68-a95f-4e70da28a25f" naming="app">
      <ports>
        <port name="capture_1" uuid="7c630c12-109e-48af-9b2d-dd6a02484fdf" type="audio" direction="output" />
        <port name="capture_2" uuid="bf55e118-b83d-4871-8091-801246500d59" type="audio" direction="output" />
      </ports>
    </client>
    <client name="jack2alsa" uuid="ec85f496-7740-4a9b-b646-49ff543f37c1" naming="app">
      <ports>
        <port name="playback_1" uuid="f6290d6d-69d9-4117-b674-586ca4342203" type="audio" direction="input" />
        <port name="playback_2" uuid="80a1b1d4-08b0-4d18-a86c-b9425b454a78" type="audio" direction="input" />
      </ports>
    </client>
    <client name="MPlayer [347]" uuid="c21fbaca-e2bc-4d01-9d8b-a74618a63801" naming="app">
      <ports>
        <port name="out_0" uuid="d2a46e94-dda0-48fe-bce2-76808f58ef7f" type="audio" direction="output" />
        <port name="out_1" uuid="7b67a2ad-5ce7-4d36-8609-0a584b112670" type="audio" direction="output" />
      </ports>
      <dict>
        <key name="http://ladish.org/ns/canvas/x">1045.0</key>
        <key name="http://ladish.org/ns/canvas/y">1109.0</key>
      </dict>
    </client>
  </clients>
  <connections>
    <connection port1="b3e04f9c-3838-4c70-947c-26e934d061c1" port2="f6290d6d-69d9-4117-b674-586ca4342203" />
    <connection port1="2478433e-a52b-4b01-a2bb-27800e959496" port2="80a1b1d4-08b0-4d18-a86c-b9425b454a78" />
    <connection port1="7c630c12-109e-48af-9b2d-dd6a02484fdf" port2="1535a730-73a1-498c-88b4-9514998c50c7" />
    <connection port1="bf55e118-b83d-4871-8091-801246500d59" port2="1115207d-d97b-4935-aa53-8829ab25d229" />
    <connection port1="d2a46e94-dda0-48fe-bce2-76808f58ef7f" port2="1535a730-73a1-498c-88b4-9514998c50c7" />
    <connection port1="7b67a2ad-5ce7-4d36-8609-0a584b112670" port2="1115207d-d97b-4935-aa53-8829ab25d229" />
    <connection port1="d2a46e94-dda0-48fe-bce2-76808f58ef7f" port2="584c66cf-4083-4874-b677-d41f5395095b" />
    <connection port1="7b67a2ad-5ce7-4d36-8609-0a584b112670" port2="b28baf8e-440e-4d10-92b0-b559f76b6025" />
    <connection port1="d2a46e94-dda0-48fe-bce2-76808f58ef7f" port2="3366fedb-a585-4e75-b288-baca5a432d34" />
    <connection port1="7b67a2ad-5ce7-4d36-8609-0a584b112670" port2="06baf093-dd37-4fc7-b782-1384419cc667" />
  </connections>
  <applications>
    <application name="ALSA Audio JACK Bridge" uuid="7c70460b-642c-42cb-9fb8-cb64fa5a366b" terminal="true" level="0" autorun="true">cadence-aloop-daemon</application>      
  </applications>
</studio>

[bazsound]

yes this has been the behaviour of media plays for a while (not just mplay, vlc and clementine do this aswell)

The only solution i have found is to use also with media plays. If you use the cadence soundloop deamon the aslajack ports stay open all the time so once you route it somewhere it stays.

[lazyklimm]

from man mplayer:

jack audio output through JACK (Jack Audio Connection Kit)

port=<name>
Connects to the ports with the given name (default: physical ports).

name=<client>
Client name that is passed to JACK (default: MPlayer [<PID>]). Useful if you want to have certain connections established automatically.

Try to change mplayer client name to something static, so ladish can(?) connect it automatically

[emarsk]

If you use qjackctl, you can configure the patchbay to keep (recreate) the connections.
You can snapshot the current ones and see how it looks like; it usually does the right thing, that is it inserts wildcards where appropriate (for example, "vlc_[0-9]+"), this way you don't need to tell mplayer to have a fixed name.

Nice to know that audacious is sane
How difficult would be for the others to it right?

[MountainX]

If you use qjackctl, you can configure the patchbay to keep (recreate) the connections.
You can snapshot the current ones and see how it looks like; it usually does the right thing, that is it inserts wildcards where appropriate (for example, "vlc_[0-9]+"), this way you don't need to tell mplayer to have a fixed name.

Are you saying that in my XML in the OP, I can change this:

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<client name="MPlayer [347]" uuid="2c7f35c9-4117-4432-9df4-11b442ca5114">

to this:

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<client name="MPlayer \[[0-9]+\]" uuid="2c7f35c9-4117-4432-9df4-11b442ca5114">

And it should work? If so, I will try it this evening when I get home.

[MountainX]

If you use qjackctl, you can configure the patchbay to keep (recreate) the connections.
You can snapshot the current ones and see how it looks like; it usually does the right thing, that is it inserts wildcards where appropriate (for example, "vlc_[0-9]+"), this way you don't need to tell mplayer to have a fixed name.

So far I cannot get this to work. I have tried:

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<client name="MPlayer \[[0-9]+\]" uuid="2c7f35c9-4117-4432-9df4-11b442ca5114">

and

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<client name="MPlayer [.*]" uuid="2c7f35c9-4117-4432-9df4-11b442ca5114">

and other variations on regexs that I thought might work...

Suggestions? Thanks

[MountainX]

from man mplayer:

jack audio output through JACK (Jack Audio Connection Kit)

port=<name>
Connects to the ports with the given name (default: physical ports).

name=<client>
Client name that is passed to JACK (default: MPlayer [<PID>]). Useful if you want to have certain connections established automatically.

Try to change mplayer client name to something static, so ladish can(?) connect it automatically

This works. Thanks.

In SMPlayer preferences -> Advanced -> Options for MPlayer -> Options:

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-ao jack:name=MPlayer_Jack

In .ladish XML config file:

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<jack>
<clients>
<client name="MPlayer_Jack" uuid="f7418e67-whatever">
...
</jack>
<clients>
<client name="MPlayer_Jack" uuid="5c2c722c-whatever" naming="app">
...

[MountainX]

Does anyone know how to accomplish the same result for VLC? (SMPlayer is working great with JACK with the changes shown in my last post. Hope to accomplish the same with VLC now.)

[lazyklimm]

As i can see https://wiki.videolan.org/Documentation:Modules/jack/ there's no way to set client name, but you can use something like jack-rack, make static routes from jack-rack out and run

vlc --jack-connect-regex jack-rack