Luca Abeni a écrit :
> Tekweb wrote:
>> I already tried to check if the stream is supported
>>
>> G:\Dokumente und Einstellungen\Keksi\Desktop\videomixer>ffmpeg -i
>> rtsp://134.155
>> .92.47:1024/mpeg4/1/media.amp
>> FFmpeg version SVN-r13712, Copyright (c) 2000-2008 Fabrice Bellard, et al.
>> configuration: --enable-memalign-hack --enable-avisynth
>> --enable-libxvid --ena
>> ble-libx264 --enable-libgsm --enable-libfaac --enable-libfaad
>> --enable-liba52 --
>> enable-libmp3lame --enable-libvorbis --enable-libtheora
>> --enable-pthreads --enab
>> le-swscale --enable-gpl
>> libavutil version: 49.7.0
>> libavcodec version: 51.57.2
>> libavformat version: 52.14.0
>> libavdevice version: 52.0.0
>> built on Jun 8 2008 21:33:14, gcc: 4.2.3
>>
>> ffmpeg.exe just hangs without an error
>>
>> VLC can play this Stream with live555 and ffmpeg as decoder, but i would
>> be glad if theres an easy"out of the box" solution.
>
> Is your client on the same network of the camera? Is there any firewall
> in the middle? Or do you have a windows firewall enabled, which blocks
> the UDP traffic?
>
> What's probably happening is that ffmpeg asks for RTP over UDP, but
> something is blocking the UDP traffic... VLC solves this problem by
> switching to RTP over RTSP if no packet is received after a short timeout.
>
> Can you try to change the "protocol_mask = (1 << RTSP_PROTOCOL_RTP_LAST) - 1;"
> line in libavformat/rtsp.c (around line 1061) in
> "protocol_mask = (1<< RTSP_PROTOCOL_RTP_TCP);" and see if this helps?
>
Hi,
It's not a matter of TCP or UDP, Axis cameras support both protocols.
In file libavformat/utils.c , you can read :" /* Do not open file if
the format does not need it. XXX: specific
hack needed to handle RTSP/TCP */
Stephane
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