[gst-devel] playing live mpegts stream over udp

[Julien Isorce]

Hi,

Thx for your informations.

I set the udpsrc buffer-size property to 20 000 000 bytes and it seems to be
fine for now. (If I put 10 000 000 I am getting some macro blocks, same with
500 000)
(the stream is around 13 MB/s)

I cannot control the stream server (and I cannot select an other
encapsulation) since it's a professional source of one of our customer.

Sincerely
Julien

2011/1/17 Kapil Agrawal <kapil.agl at gmail.com>

> Hello Julien,
>
> Based on my personal experience I think you might even try ffdemux_mpegts.
>
> Yeah fixing mpegtsdemux would surely need aspirin.
>
> Best
> Kapil
>
> On Sat, Jan 15, 2011 at 12:38 AM, Julien Isorce <julien.isorce at gmail.com>wrote:
>
>> Hi,
>>
>> I am trying to play nicely a usual mpegts stream from network.  (720p
>> h264/ac3 mpegts over udp multicast)
>> The pipeline is:
>> gst-launch uridecodebin uri=239.102.101.3:1013 ! then audio and video
>> renderers.
>> My network interface is connected in 1GO.
>>
>> With default properties, the video has a lot of macro block. If I record
>> the network packets in a pcap file then
>> I can perfeclty play the stream using pcapparse.
>> So I think the problem comes from some buffering pbs.
>>
>> When configuring with some heuristics use-buffering=1, buffer-duration and
>> buffer-size properties of uridecodebin,
>> the video contains less macro blocks but it still contains enough block to
>> make me fill it's not normal.
>>
>> With VLC the stream is played almost perfectly.
>>
>> Am I doing something wrong ? Should I need a something like a jitterbuffer
>> (no rtp here) ?
>>
>> Any help would be appreciated.
>> Sincerely
>> Julien Isorce
>>
>>
>>
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>
>
> --
> www.mediamagictechnologies.com (Gstreamer, ffmpeg, Red5, Streaming)
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>
>
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