h264 streaming and slow to start

[cable007]

hi all,

I configurated vlc to stream video + audio from my webcam
I chose h264 in video codec but I have a big problem from client side, when client connects in http to my vlc, stream is very long to appear (about 30s or 1minute)
he seems to me that problem is h264 because when I choose mp4v, no problem
any idea ?

an other question : what's the best solution to stream a meeting with many users (more than 100)
- create a vlc stream in http
- possible to integrate vlc relays
... what else ?

Thanks

Nicolas

[Jean-Baptiste Kempf]

Do you have an I-frame issue ?

[cable007]

hello,

sorry can you explain a bit more what you mean ... I'm not an expert
what I know is :
my stream is h264 for video and mp4a for audio ... and when client connects, he has voice quickly but no video, but after more than 30s video appears

how can I help you to find a solution ?
maybe I forgot something to stream in h264 ???

Thanks

Nicolas

[Jean-Baptiste Kempf]

Probably you don't send enough I frames. Ask on IRC.

[cable007]

... and how can I change I frames to push enough to get video quickly ?

[cable007]

ok I found, it was :
max/min size of GOP

Thanks

nicolas

[cable007]

hello,

now that I found the keys to improve start of stream for clients

can you tell me what the better sizes for GOP (min/max) to improve it again


Thanks

Nicolas

PS : should be cool to get stream like in mp4v (video starts immeditaly) whereas in h264, I wait 20s to get video