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by thomasferre
12 Jul 2011 12:36
Forum: VLC media player for Windows Troubleshooting
Topic: H264 RTP multicast streaming crash with win XP VLC 1.1.10
Replies: 2
Views: 470

Re: H264 RTP multicast streaming crash with win XP VLC 1.1.1

Hi

I am away on holiday but I asked a colleague to post the log file.

REgards
by thomasferre
11 Jul 2011 09:31
Forum: VLC stream-output (sout)
Topic: vlc hardware encoding for real-time screen multicast
Replies: 9
Views: 3375

Re: vlc hardware encoding for real-time screen multicast

Hi

I am busy right now but I asked a colleague to post the VLC log of the crash.

Regards
by thomasferre
11 Jul 2011 09:31
Forum: VLC stream-output (sout)
Topic: H264 RTP multicast streaming crash with win XP VLC 1.1.10
Replies: 2
Views: 1163

Re: H264 RTP multicast streaming crash with win XP VLC 1.1.1

Hi

I am busy right now but I asked a colleague to post the VLC log of the crash.

Regards
by thomasferre
11 Jul 2011 09:01
Forum: VLC media player for Windows Troubleshooting
Topic: H264 RTP multicast streaming crash with win XP VLC 1.1.10
Replies: 2
Views: 470

H264 RTP multicast streaming crash with win XP VLC 1.1.10

Hi

I am using windows XP VLC 0.86i for live H264 RTP multicast streaming for a few years.

Works very well.

I tried 1.1.10 but the RTP H264 multicast streaming crashes VLC after about 8 hours of streaming.

Have you met the same pb ?

Regards
by thomasferre
11 Jul 2011 09:00
Forum: VLC stream-output (sout)
Topic: H264 RTP multicast streaming crash with win XP VLC 1.1.10
Replies: 2
Views: 1163

H264 RTP multicast streaming crash with win XP VLC 1.1.10

Hi

I am using windows XP VLC 0.86i for live H264 RTP multicast streaming for a few years.

Works very well.

I tried 1.1.10 but the RTP H264 multicast streaming crashes VLC after about 8 hours of streaming.

Have you met the same pb ?

Regards
by thomasferre
11 Jul 2011 08:56
Forum: VLC stream-output (sout)
Topic: vlc hardware encoding for real-time screen multicast
Replies: 9
Views: 3375

Re: vlc hardware encoding for real-time screen multicast

I tried windows 1.1.10.

H264 RTP streaming crashes VLC after about 8 hours of streaming.

So I got back to 0.86i, which is quite stable.
by thomasferre
08 Jul 2011 14:58
Forum: VLC stream-output (sout)
Topic: vlc hardware encoding for real-time screen multicast
Replies: 9
Views: 3375

Re: vlc hardware encoding for real-time screen multicast

OS windows XP (extremergb driver only on windows) We were using VLC 0.86i because it was the most stable and efficient H264 encoder. We tried 1.1.x versions but there was a cyclic visual remance on black boards with H264 encoder. The 1.1.9 H264 seemed OK but it seems that RTP causes VLC to crash aft...
by thomasferre
08 Jul 2011 14:33
Forum: VLC stream-output (sout)
Topic: vlc hardware encoding for real-time screen multicast
Replies: 9
Views: 3375

Re: vlc hardware encoding for real-time screen multicast

Hi We have 3 000 students in the first year of medical school in Lille (PACES). We only take the 450 best students to pursuit medical studies. As we don't have a signle 3 000 seats amphitheatre for the lectures, we do multicast streaming in several amphitheatres (600 seats, 300 seats, ...). The Extr...
by thomasferre
08 Jul 2011 11:16
Forum: VLC stream-output (sout)
Topic: vlc hardware encoding for real-time screen multicast
Replies: 9
Views: 3375

Re: vlc hardware encoding for real-time screen multicast

Hi I work in the Lille faculty of medecine in France. We are using VLC to multicast HD (1920*1080) streaming lectures (PC or HD camera). We are using the extremergb hardware : http://www.xtremergb.com/categories/HDMI-%7B47%7D-DVI-%7B47%7D-RGB-Capture-Cards/ The hardware is working very well (about 1...
by thomasferre
06 Jul 2010 10:00
Forum: VLC stream-output (sout)
Topic: [v1.1] No video with MPEG-TS/h264/mp4a during RTP broadcast
Replies: 6
Views: 2048

Re: [v1.1] No video with MPEG-TS/h264/mp4a during RTP broadc

Hi

I have just installed the 1.1.1 version.

VLC crashes when trying to do RTP / TS H264 streaming ...
by thomasferre
25 Jun 2010 23:38
Forum: VLC stream-output (sout)
Topic: [v1.1] No video with MPEG-TS/h264/mp4a during RTP broadcast
Replies: 6
Views: 2048

Re: [v1.1] No video with MPEG-TS/h264/mp4a during RTP broadc

The RTP broadcast is working fine with the MPEG2 video codec (mp2v).

The pbs seems to be h264 + rtp ...
by thomasferre
25 Jun 2010 23:23
Forum: VLC stream-output (sout)
Topic: [v1.1] No video with MPEG-TS/h264/mp4a during RTP broadcast
Replies: 6
Views: 2048

Re: [v1.1] No video with MPEG-TS/h264/mp4a during RTP broadc

Hi Same thing for me when trying to do RTP broadcast with H264 to another client : audio and no video Same thing with UDP. But I found something "funny" : when you do RTP broadcast to yourself (127.0.0.1) on 2 differents VLC instances on the same machine, it is working fine (at least with ...
by thomasferre
08 Apr 2010 10:54
Forum: VLC media player for Windows Troubleshooting
Topic: Direct Show capture pb with high definition capture card
Replies: 4
Views: 1615

Direct Show capture pb with high definition capture card

Hi I am using VLC 1.0.5 on a PC under windows XP to do live H264 high definition multicast streaming. I have installed a XTREME RGB high definition card : http://www.ems-imaging.com/catalog/modules.php?name=catalog&file=product_info&cPath=39&products_id=116 Datasheet http://www.ems-imagi...
by thomasferre
23 Jul 2009 09:57
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16271

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Hello Like elpechos, I tried A LOT of different X264 encoding parameters with VLC 1.0 but none are producing a decent quality video. I went to the VLC IRC channel to tell the pb. Some people there told me : "go to X264 IRC channel" I did. Some people at the X264 IRC channel told me that th...
by thomasferre
04 Jul 2009 13:20
Forum: VLC 1.0.0 testing
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 13
Views: 51425

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Hi I have also experienced that X264 transcoding with 1.0 is VERY SENSIBLE to capture video noise from a camera (such as lack of light in a room). With a little video noise, 1.0 RC3 produces a much poorer quality than 0.86i, event at high bitrates (>1 Mb/s). I wanted to use mp4v with 1.0 but it is n...
by thomasferre
17 Jun 2009 20:15
Forum: VLC 1.0.0 testing
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 13
Views: 51425

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

I am using the same VLC bach file with 0.86i and 1.0 RC3 : start vlc.exe dshow:// :dshow-vdev="Osprey-100 Video Device 1" :dshow-fps=25.000 :dshow-adev="SigmaTel Audio" :sout=#transcode{vcodec=h264,vb=384,scale=1,acodec=mp4a,ab=64,channels=1,samplerate=44100} My X264 configuratio...
by thomasferre
17 Jun 2009 08:30
Forum: VLC 1.0.0 testing
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 13
Views: 51425

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Hi I have posted my whole X264 configuration here : http://forum.videolan.org/viewtopic.php?f=4&t=60871 I am using the same X264 configuration with 0.86i and 1.0 RC3 I know that subme values have changed from 0.86i (1-7) to 1.0 rc3 (1-9). I tried with the best subme values 9 with 1.0 RC3. Still ...
by thomasferre
16 Jun 2009 16:03
Forum: VLC 1.0.0 testing
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 13
Views: 51425

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Already tried with 7,8 and 9 subme.

Same pb.
by thomasferre
15 Jun 2009 15:52
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16271

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Yes, when I stream, I can see that this is really a 384 kb/s stream
by thomasferre
15 Jun 2009 15:27
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16271

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

In fact, I am using a batch file :

start vlc.exe dshow:// :dshow-vdev="Osprey-100 Video Device 1" :dshow-fps=25.000 :dshow-adev="SigmaTel Audio" :sout=#transcode{vcodec=h264,vb=384,scale=1,acodec=mp4a,ab=64,channels=1,samplerate=44100}
by thomasferre
15 Jun 2009 15:18
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16271

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

All default except :

# integer (Nombre de threads)
sout-transcode-threads=4

# boolean (Priorité élevée)
sout-transcode-high-priority=1

I am using a dual core.

I tried with sout-transcode-high-priority=0 and sout-transcode-threads=0 but the pb remains ...
by thomasferre
15 Jun 2009 15:05
Forum: VLC stream-output (sout)
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 64
Views: 16271

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

I am using the Windows version of VLC downloaded from videolan.org. Here is my X264 configuration file in VLC : All default except sout-x264-partitions and sout-x264-direct set to none to save cpu I am using the same X264 configuration with VLC 0.86i and 1.0 RC3 -- [x264] # Encodeur vidéo H264/MPEG4...
by thomasferre
15 Jun 2009 13:48
Forum: VLC 1.0.0 testing
Topic: RC3 H264 encoding quality worse than 0.86i with low bitrates
Replies: 13
Views: 51425

Re: RC3 H264 encoding quality worse than 0.86i with low bitrates

Hi Just to show you the pb : I am using the same X264 configuration with VLC 1.0 RC3 and VLC 0.86i. As you can see, with a 384 kb/s bit-rate, there is a BIG quality difference ... VLC 0.86 i : http://194.254.117.19/h264-vlc086i-384kbs.jpg VLC 1.0 RC3 : http://194.254.117.19/h264-vlc1.0RC3-384kbs.jpg...

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