Mosaic - I can't get a smooth picture

[soisses]

Hi,

I used VLC 1.11 to display four Axis-Webcams in one mosaic pictures without any problem.

After upgrading to VLC 2.0 I changed a little bit the code, because the fake input was not longer supported. Finally, I got the mosaic with the four axis webcams, but the picture is not smooth. It seems that there are many frames dropped. The CPU usage is about 40%.

Here is my code:

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new channel1 broadcast enabled setup channel1 input rtsp://192.168.2.100/axis-media/media.amp?codec=h264 setup channel1 option network-caching=600 setup channel1 output #mosaic-bridge{id=1,width=480,height=360} new channel2 broadcast enabled setup channel2 input rtsp://192.168.2.101/axis-media/media.amp?codec=h264 setup channel2 option network-caching=600 setup channel2 output #mosaic-bridge{id=2,width=480,height=360} new channel3 broadcast enabled setup channe3 input rtsp://192.168.2.102/axis-media/media.amp?codec=h264 setup channel3 option network-caching=600 setup channel3 output #mosaic-bridge{id=3,width=480,height=360} new channel4 broadcast enabled setup channel4 input rtsp://192.168.2.103/axis-media/media.amp?codec=h264 setup channel4 option network-caching=600 setup channel4 output #mosaic-bridge{id=4,width=480,height=360} new test broadcast enabled setup test input "file:///background.jpg" setup test option image-duration=-1 setup test option image-fps=0 setup test output #transcode{sfilter=mosaic,vcodec=mp4v,vb=8500,fps=25}:display control channel1 play control channel2 play control channel3 play control channel4 play control test play

I start VLC with

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SET PATH=%PATH%;%programfiles%\videolan\vlc\;%programfiles(x86)%\videolan\vlc\ vlc --mosaic-width=960 --mosaic-height=720 --mosaic-delay=1 --vlm-conf=%1

Any help is greatly appreciated.

Manfred

[Sébastien Escudier]

and, are the axis smooth if you watch them once at a time, without the mosaic ?

[soisses]

yes, no problem when i open the video streams in vlc player.

in mosaic there are the following debug messages (repeated)

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main warning: original picture size is undefined mosaic debug: too late picture for 1 (211704) mosaic debug: too late picture for 3 (175471) mosaic debug: too late picture for 4 (210164) mosaic debug: too late picture for 2 (198448)

next i saved the video streams to disc and created a mosaic from the files - the same result.

at last i tried another video from my digicam - also the same result.

???

[soisses]

Still I have no solution for my problem.

Is there anyone who uses a 2x2 mosaic with VLC > 2 with no problems?

[virgism]

I have same problem - can't get smooth picture, debug message (input udp, output HLS):

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[0x185ef68] main mux warning: late buffer for mux input (279804) [181/27674] [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (336845) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (375007) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (443316) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (457252) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (444913) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (424237) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (404860) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (383959) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (386447) [0x1cfa868] mosaic filter debug: too late picture for 1 (1509) [0x1cfa868] mosaic filter debug: too late picture for 3 (21528) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (362164) [0x1cfa868] mosaic filter debug: too late picture for 1 (1509) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (361919) [0x1cfa868] mosaic filter debug: too late picture for 1 (41509) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (373842) [0x1cfa868] mosaic filter debug: too late picture for 1 (1509) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (342681) [0x1cfa868] mosaic filter debug: too late picture for 1 (41509) [0x1cfa868] mosaic filter debug: too late picture for 3 (21528) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (311310) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (362217) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (398106) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (377570) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (374457) [0x18a8798] main subpicture warning: original picture size is undefined [0x185ef68] main mux warning: late buffer for mux input (402198) [0x1cfa868] mosaic filter debug: too late picture for 0 (9450) [0x18a8798] main subpicture warning: original picture size is undefined

With --network-caching=2000 error "late buffer for mux input" disappear, but picture not smooth ( not full picture, only differrent inputs)

[soisses]

I found a solution for this problem:

Instead of using

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setup test option image-fps=25

you have to use

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setup test option image-fps=25/1

Now it works perfect! Don't know why, but....

[Jean-Baptiste Kempf]

This is weird, indeed.

[soisses]

Accidently I found this hint in preferences:



Perhaps the documentation must be adjusted.

[nishant1234]

what will be the maximum frame rate

[virgism]

I found a solution for this problem:

Instead of using

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setup test option image-fps=25

you have to use

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setup test option image-fps=25/1

Now it works perfect! Don't know why, but....

This fixed my isssue too. Thank you.