[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
This bug might or might not be fixed in VLC 2.0.0 or 2.1.0. Do you experience this bug with Ubuntu 12.04 or later? I mark this bug as fixed. Please set the status back to new if you can still experience with Ubuntu 12.04 or later. ** Changed in: vlc (Ubuntu) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
** Changed in: vlc Status: Unknown = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Should be fixed in VLC 2.1.0, though there may be other issues with A/V sync. ** Changed in: vlc (Ubuntu) Status: Incomplete = Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Is it possible to backport these changes to the 2.0.x branch or are the required changes too big? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
I don't know; it should not be too difficult. But it does not fit the upstream backport policy (so I won't try). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
** Description changed:
- Binary package hint: vlc
+ The audio-sync function does not appear to work correctly in VLC 1.1.4
+ Ubuntu 10.10 Maverick.
+ [Symptom]
+ After initial audio/video sync up using audio-desync, the audio/video
+ sync drifts out noticably within a few minutes and significantly in an
+ hour or so.
+ * The standard Ubuntu Lucid 10.04 VLC 1.0.6 version performs correctly
+ * The MS windows (XP) version 1.1.4 performs correctly
- The audio-sync function does not appear to work correctly in VLC 1.1.4
+ [Test case]
- Ubuntu 10.10 Maverick.
+ A. Setup
+ * Same Hardware and software setup in both Ubuntu test cases
+ * Video in: PCI analog capture card (bt878video pci capture card,
Hauppauge VCB Impact)
+ * Audio in: Soundcard line-in
+ * Std desktop install Ubuntu versions using Std default repos
+ * +VLC, +ffmpeg libavdevice-extra52, +x264
+ * Broadcast TV analog out used as test input source. Video into capture card,
audio into sound card ( I would usually be using analogue camera and mic/line
in)
- Symptom
+ B. Procedure
- After initial audio/video sync up using audio-desync, the audio/video
- sync
+ 1. Open GUI, test video/audio capture, by Open Capture device - Play
- drifts out noticably within a few minutes and significantly in an hour
- or
+ 2. Select Streaming from menu, select Capture device tab, all input
+ settings left at default
- so.
-
-
- The standard Ubuntu Lucid 10.04 VLC 1.0.6 version performs correctly
-
-
- The MS windows (XP) version 1.1.4 performs correctly
-
-
-
-
- Test case
-
-
- Same Hardware and software setup in both Ubuntu test cases
-
-
- Video in: PCI analog capture card (bt878video pci capture card,
- Hauppauge
-
- VCB Impact)
-
-
- Audio in: Soundcard line-in
-
-
- Std desktop install Ubuntu versions using Std default repos
-
- +VLC, +ffmpeg libavdevice-extra52, +x264
-
- Broadcast TV analog out used as test input source. Video into capture
-
- card, audio into sound card ( I would usually be using analogue camera
- and
-
- mic/line in)
-
-
- Procedure
-
-
- 1 Open GUI, test video/audio capture, by Open Capture device - Play
-
-
- 2 Select Streaming from menu, select Capture device tab, all input
-
- settings left at default
-
-
- 3 select Stream, Next, Next , Paste output string into textbox, as
+ 3. select Stream, Next, Next , Paste output string into textbox, as
follows
+ --sout-keep --audio-desync=-40
+
:sout=#transcode{vcodec=h264,vb=600,deinterlace,ab=64,fps=25,width=160,height=120,acodec=mp3,samplerate=44100
+ ,audio-
+
sync}:duplicate{dst=std{access=http{mime=video/x-flv},mux=ffmpeg{mux=flv},dst=0.0.0.0:8082/stream.flv},dst=display}
+ * Audio-desync value adjusted to initial optimum value (predetermined before
test)
+ * Width and height set to low values to minimise cpu load
+ * Same procedure in all cases including Win XP. Win test using
similar hardware, bt878 pci capture card.
- --sout-keep --audio-desync=-40
-
-
:sout=#transcode{vcodec=h264,vb=600,deinterlace,ab=64,fps=25,width=160,height=120,acodec=mp3,samplerate=44100
-
- ,audio-sync}:duplicate{dst=std{access=http
-
-
{mime=video/x-flv},mux=ffmpeg{mux=flv},dst=0.0.0.0:8082/stream.flv},dst=display}
-
-
- Audio-desync value adjusted to initial optimum value (predetermined
- before
-
- test)
-
- Width and height set to low values to minimise cpu load
-
-
- Same procedure in all cases including Win XP. Win test using similar
-
- hardware, bt878 pci capture card.
-
-
- Appendix
+ [Appendix]
Suspected that pulseaudio may be the cause:
- Removed pulseaudio and installed alsa mixer. Problem persisted.
-
- Also tried VLC 1.1.5 from Maverick Bleed PPA. Problem persisted
-
- Also tried VLC 1.1.4 from Lucid Bleed PPA with Lucid. Problem here as
- well.
-
+ * Removed pulseaudio and installed alsa mixer. Problem persisted.
+ * Also tried VLC 1.1.5 from Maverick Bleed PPA. Problem persisted
+ * Also tried VLC 1.1.4 from Lucid Bleed PPA with Lucid. Problem here as well.
Reported problem to Videolan Trac
-
Response as follows.
-
-
- Changes (by courmisch): * status: new = closed* resolution: =
- incomplete* component: I don't know = Access
+ Changes (by courmisch):
+ * status: new = closed
+ * resolution: = incomplete
+ * component: I don't know = Access
Comment: And I bet you get the same effect if you just render the inputs
- locally,no? Then I would tend to blame the V4L2 and ALSA input plugins
+ locally,no? Then I would tend to blame the V4L2 and ALSA input plugins
for not timestamping correctly. Or it might even be a driver bug.
-
Ticket URL: http://trac.videolan.org/vlc/ticket/4315#comment:2
-
- I did not see the problem when playing capture device, only when streaming.
+ I did not see the problem when playing capture device, only when
+ streaming.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: vlc 1.1.4-1ubuntu1.1
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
** Changed in: vlc Importance: Unknown = Undecided ** Changed in: vlc Status: Unknown = New ** Changed in: vlc Remote watch: VLC Trac #5068 = None ** Changed in: vlc Status: New = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
** Bug watch added: VLC Trac #5068 http://trac.videolan.org/vlc/ticket/5068 ** Changed in: vlc Importance: Undecided = Unknown ** Changed in: vlc Status: Invalid = Unknown ** Changed in: vlc Remote watch: None = VLC Trac #5068 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Hi, I've the same symptom on oneiric vlc version 1.1.12 streaming
microsoft live webcam:
vlc -I dummy --color 'v4l2:///dev/video0:width=640:height=360'
:input-slave=alsa://hw:1,0
--sout='#transcode{acodec=aac,vcodec=h264,audio-sync,width=640,height=360}:rtp{dst=0.0.0.0,sdp=rtsp://0.0.0.0:2323/test.sdp}'
-v --sout-transcode-threads 3 --sout-x264-bframes 0 --no-sout-x264-cabac
The problem is that video is delayed (sound is before video). I've tried
audio-sync and without but it has no effect.
Using gstreamer on the same system results in perfect sync even after
many hours. I've also tried vlc forum to discuss it there:
http://forum.videolan.org/viewtopic.php?f=13t=95866 and the developer
says that the v4l2 drivers are broken in some way.
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Title:
Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
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[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
I only have the problem when streaming to somewhere else, not when playing back. I am not and have not been using a DVB device. Analogue capture cards only (bt878 type for video input) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Is the desynchronization also perceptible when playing back, or only when streaming to somewhere else? And please don't mix DVB and analog. By design, there cannot be audio/video desync in DVB unless the broadcaster is broken. There may however be desync due to transcoding or outputting from VLC. ** Changed in: vlc Status: Incomplete = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
** Changed in: vlc Importance: Unknown = Undecided ** Changed in: vlc Status: Unknown = New ** Changed in: vlc Remote watch: VLC Trac #4315 = None ** Changed in: vlc Status: New = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 To manage notifications about this bug go to: https://bugs.launchpad.net/vlc/+bug/686248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Propagating upstream status... ** Bug watch added: VLC Trac #4315 http://trac.videolan.org/vlc/ticket/4315 ** Also affects: vlc via http://trac.videolan.org/vlc/ticket/4315 Importance: Unknown Status: Unknown ** Changed in: vlc (Ubuntu) Status: New = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Update#2 Fresh clean install Ubuntu 10.10 VLC 1.1.7 (maverick-bleed as above) Tried several capture and transcode runs, same bt878 + soundcard + settings as previous update. Results similar, if variable in that the amount of audio desync and the time it became significantly noticable was not consistant. Sometimes within a couple of hours, sometimes could hold well for circa 4 hrs. So problem still present. Reference check Installed Ubuntu 10.04 VLC 1.0.6 on same hardware, 3Ghz P4 dual boot. Again same results as previously seen. Held sync for 12+ hrs with minor fluctuations. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Hi! Have you tried the new version 1.1.6? I don't have time now to try it myself. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
FYI, I am pushing builds of VLC 1.1.6 into maverickbleed and lucidbleed ppas: https://launchpad.net/~lucid-bleed/+archive/ppa https://launchpad.net/~maverick-bleed/+archive/ppa They will be available sometimes tomorrow. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Well, i did not tried so long time, but i will try it today or tomorrow. I will put my results here once i have made my tests. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
After a hour, there is a small out of sync, less than a second, and it increases little by little on time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Thank you for taking the time and trouble to check. You have also confirmed the bug on different hardware which is helpfull. Perhaps add yourself to the affected list if appropriate? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Hello Fenix-TX Can you confirm that your solution Stays synchronised? Eg after 6Hrs or more Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Hi! I'm using this ppa: https://launchpad.net/~n-muench/+archive/vlc
And i'm using this command to stream:
vlc dvb-t:// input_stream --dvb-frequency=53800 --dvb-adapter=0
--dvb-bandwidth=8 --file-caching=2500
--sout=#transcode{venc=x264{keyint=60,idrint=2,subme=7,ref=3,bframes=16,me=hex,b-adapt=1,merange=16,deblock=-3:3,threads=4,cabac},vcodec=h264,vb=200,scale=0.5,fps=12,acodec=aac,ab=28,channels=1,samplerate=22050,deinterlace}:rtp{dst=127.0.0.1,port=5004,mux=ts,sdp=file:///home/jesus/vlc.sdp}
Well, before adding mux=ts on rtp section, audio was out of sync, but
now using mux=ts the audio goes syncrhonized. Perhaps this helps.
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Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
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[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
Update/further info If package x264 is removed leaving only libx264-98, the audio-desync=xx necessary for initial sync reduces to zero or one frame or so. The audio-sync drift also is much less, but still quite apparent. Noticable in an hour or two and significant beyond 3 hrs plus, getting worse over time. The Lucid test case had both x264 and libx264-95 installed. The Lucid test case was over a 6.5hr period with some minor flucuations in sync (est a frame or two at random test times) but was still well syncronised at the end of the test period. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 686248] Re: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/686248 Title: Audio sync problem streaming ubuntu 10.10 VLC 1.1.4 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
