FFMPEG not found by OpenToonz on Ubuntu

[VinceFINET]

Describe the bug
FFMPEG not found by OpenToonz on Ubuntu

To Reproduce
List steps to reproduce the behavior.

1. Install OpenToonz on a Ubuntu from apt-get
2. Install ffmpeg on the same Ubuntu from apt-get (command "which ffmpeg" output "/usr/bin/ffmpeg")
3. Launch OT, try to render as MP4 you get a dialog box saying the program did not found ffmpeg
4. Go to preference, and set "/usr/bin/ffmpeg" and restart OT
5. Same error as step 3
6. Go to preference, and set "/usr/bin/" and restart OT
7. Same error as step 3
8. Go to preference, and set "/usr/bin" and restart OT
9. Same error as step 3

Expected behavior
OT should find ffmpeg

Device Information:

• OS: Linux 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
• OpenToonz: 1.4 built May 29 2020 11:56:49

[VinceFINET]

Problem is linked to the snap package that has no access to /usr/bin

Trying to copy the ffmpeg in home does not help much.
I tried:

• The ffmpeg binary installed in the system
  $ cksum /usr/bin/ffmpeg
24847602 280880 /usr/bin/ffmpeg
• Binary copied into the snap/opentoonz root did not work either
  $ cksum ~/snap/opentoonz/*peg
24847602 280880 /home/xxxx/snap/opentoonz/ffmpeg
24847602 280880 /home/xxxx/snap/opentoonz/FFmpeg
• Same if copy into the /snap/opentoonz root
  $ cksum /snap/opentoonz/*peg
24847602 280880 /snap/opentoonz/ffmpeg

Please could you provide assistance?

FYI:
$ snap connections opentoonz
Interface Connecteur Prise Notes
desktop opentoonz:desktop :desktop -
desktop-legacy opentoonz:desktop-legacy :desktop-legacy -
home opentoonz:home :home -
network opentoonz:network :network -
network-manager opentoonz:network-manager :network-manager manual
opengl opentoonz:opengl :opengl -
pulseaudio opentoonz:pulseaudio :pulseaudio -
removable-media opentoonz:removable-media :removable-media manual
unity7 opentoonz:unity7 :unity7 -
x11 opentoonz:x11 :x11 -

[VinceFINET]

Information about ffmpeg here https://forum.snapcraft.io/t/call-for-testing-opentoonz-snap/5738/27

it seems the ffmpeg is included in the snap
but i am not the only one that has issue with the proposed solution.

Still need to find a solution....

[popey]

ffmpeg is included in the snap. So go to File -> Preferences -> Import/Export. Set the FFmpeg Path to /snap/opentoonz/current/usr/bin/ffmpeg.
Does that work?
Don't try and run /snap/opentoonz/current/usr/bin/ffmpeg from outside the snap, that won't work, and isn't designed to. But when opentoonz calls it, it will call it correctly.

[VinceFINET]

Thank you for answering me !!

Let me show you (i may have missed something):

Preferences as you suggested:

Is there a command you want me to do to check any logs or something else???
Thank you

[VinceFINET]

even I restarted OpenToonz same error...

[popey]

My mistake, don't put /ffmpeg on the end. Just set the path to /snap/opentoonz/current/usr/bin

[VinceFINET]

Same with /snap/opentoonz/current/usr/bin

Closing OT and then reopen

[VinceFINET]

I removed the app, reinstalled from the Ubuntu software program.

Launch the program.

The log is as it is:

Jan 19 12:28:15 ASUS opentoonz_opentoonz.desktop[58398]: Qt: Session management error: Could not open network socket
Jan 19 12:28:16 ASUS opentoonz_opentoonz.desktop[58398]: QFileSystemWatcher::addPath: path is empty
Jan 19 12:28:18 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS opentoonz_opentoonz.desktop[58398]: propsReply "An AppArmor policy prevents this sender from sending this message to this recipient; type=\"method_call\", sender=\":1.514\" (uid=1000 pid=58398 comm=\"/snap/opentoonz/94/bin/../bin/OpenToonz \" label=\"snap.opentoonz.opentoonz (enforce)\") interface=\"org.freedesktop.DBus.Properties\" member=\"GetAll\" error name=\"(unset)\" requested_reply=\"0\" destination=\"org.freedesktop.NetworkManager\" (uid=0 pid=998 comm=\"/usr/sbin/NetworkManager --no-daemon \" label=\"unconfined\")"
Jan 19 12:28:18 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.NetworkManager" member="GetDevices" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS opentoonz_opentoonz.desktop[58398]: nmReply "An AppArmor policy prevents this sender from sending this message to this recipient; type=\"method_call\", sender=\":1.514\" (uid=1000 pid=58398 comm=\"/snap/opentoonz/94/bin/../bin/OpenToonz \" label=\"snap.opentoonz.opentoonz (enforce)\") interface=\"org.freedesktop.NetworkManager\" member=\"GetDevices\" error name=\"(unset)\" requested_reply=\"0\" destination=\"org.freedesktop.NetworkManager\" (uid=0 pid=998 comm=\"/usr/sbin/NetworkManager --no-daemon \" label=\"unconfined\")"
Jan 19 12:28:18 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS opentoonz_opentoonz.desktop[58398]: "Object path cannot be empty"
Jan 19 12:28:18 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS kernel: audit: type=1107 audit(1611055698.085:1218): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS kernel: audit: type=1107 audit(1611055698.085:1219): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.NetworkManager" member="GetDevices" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS kernel: audit: type=1107 audit(1611055698.085:1220): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS kernel: audit: type=1107 audit(1611055698.085:1221): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:28:18 ASUS kernel: audit: type=1107 audit(1611055698.085:1222): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=58398 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"

[VinceFINET]

Then i set the preference as you said. closed the program. reopened it. same error.

here are the logs:

Jan 19 12:34:01 ASUS opentoonz_opentoonz.desktop[59107]: Qt: Session management error: Could not open network socket
Jan 19 12:34:02 ASUS opentoonz_opentoonz.desktop[59107]: QFileSystemWatcher::addPath: path is empty
Jan 19 12:34:04 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS opentoonz_opentoonz.desktop[59107]: propsReply "An AppArmor policy prevents this sender from sending this message to this recipient; type=\"method_call\", sender=\":1.522\" (uid=1000 pid=59107 comm=\"/snap/opentoonz/94/bin/../bin/OpenToonz \" label=\"snap.opentoonz.opentoonz (enforce)\") interface=\"org.freedesktop.DBus.Properties\" member=\"GetAll\" error name=\"(unset)\" requested_reply=\"0\" destination=\"org.freedesktop.NetworkManager\" (uid=0 pid=998 comm=\"/usr/sbin/NetworkManager --no-daemon \" label=\"unconfined\")"
Jan 19 12:34:04 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.NetworkManager" member="GetDevices" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS opentoonz_opentoonz.desktop[59107]: nmReply "An AppArmor policy prevents this sender from sending this message to this recipient; type=\"method_call\", sender=\":1.522\" (uid=1000 pid=59107 comm=\"/snap/opentoonz/94/bin/../bin/OpenToonz \" label=\"snap.opentoonz.opentoonz (enforce)\") interface=\"org.freedesktop.NetworkManager\" member=\"GetDevices\" error name=\"(unset)\" requested_reply=\"0\" destination=\"org.freedesktop.NetworkManager\" (uid=0 pid=998 comm=\"/usr/sbin/NetworkManager --no-daemon \" label=\"unconfined\")"
Jan 19 12:34:04 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS opentoonz_opentoonz.desktop[59107]: "Object path cannot be empty"
Jan 19 12:34:04 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS audit[995]: USER_AVC pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS kernel: audit: type=1107 audit(1611056044.319:1223): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS kernel: audit: type=1107 audit(1611056044.319:1224): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.NetworkManager" member="GetDevices" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS kernel: audit: type=1107 audit(1611056044.319:1225): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS kernel: audit: type=1107 audit(1611056044.319:1226): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:04 ASUS kernel: audit: type=1107 audit(1611056044.319:1227): pid=995 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager/Settings" interface="org.freedesktop.NetworkManager.Settings" member="ListConnections" mask="send" name="org.freedesktop.NetworkManager" pid=59107 label="snap.opentoonz.opentoonz" peer_pid=998 peer_label="unconfined"
Jan 19 12:34:12 ASUS opentoonz_opentoonz.desktop[59107]: QSettings::setValue: Empty key passed

[popey]

We must be doing something different. Please explain how to reproduce this inside opentoonz. I don't need to know how to install or remove opentoonz, just exactly what you did in opentoonz, step by step.

[VinceFINET]

Step 1: open "Software" program on Ubuntu
Step 2: look for OpenToonz
Step 3: select the green one (not the purple one)
Step 4: install it
Step 5: open it
Step 6: close the dialog box proposing to create a new project
Step 7: go to preferences from menu, section import/export, set ffmpeg option path to /snap/opentoonz/current/usr/bin
Step 8: close the dialog box
Step 9: close OT
Step 10: reopen OT
Step 11: same as step 6
Step 12: select the menu to "render as mp4"
Step 13: got the dialog box error

[popey]

Ok, this is now in the stable channel and works. Just make sure to set the path to ffmpeg as /snap/opentoonz/current/usr/bin and the path to save to as something sensible like /home/yourname/Videos.

[VinceFINET]

So in conclusion:

• The new version of the snapcraft opentoonz has a fix about this, thanks to @popey
• Remember to update the snap if already installed with snap refresh opentoonz
• And set the path of FFmpeg in preferences to /snap/opentoonz/current/usr/bin