Re: [linux-dvb] Re: DVB-H information
Le mardi 6 mars 2007 16:43, Francesco Schiavarelli a écrit : > Stéphane Esté-Gracias wrote: > >>> I found on Internet a free application to extract PES or ES from a TS, > >>> but don't know how I can 'de-packetize' the RTP/UDP/IP stack to > >>> visualize the raw H.264 stream. Do you know application in order to do > >>> it? > >> > >> I used dvbnet apps (available with Linux DVB) to receive datagrams from > >> TS on a virtual net interface and routing to a multicast group. > >> Then you should be able to dump the H.264 ES with mplayer, > >> I used VLC to watch audio and video. > >> > >> regards, > >> Francesco > > > > Hello Francesco, > > > > I've tried without any succes to read DVB-H streams throught dvbnet and > > VLC. I only use tcpdump to extract packets from dvbnet interface. > > To get the ESG I've done the following: > 1 - Tune and create dvb network interface with dvbnet on the ESG pid > 2 - Bring up dvb0_0 in promisc mode (otherwise won't work) > 3 - Start a multicast routing daemon to route packet to eth0 > 4 - Receive ALC/FLUTE packets to reassemble ESG using bootstrap > 5 - Extract SDP file from ESG > > In 3) I used smcroute as I had problems with mrouted. > In 4) I used MAD-FLUTE receiver > In 5) you can have the SDP inspecting ESG fragments with a hex editor > > To get A/V you need the SDP and then again: > 1 - Tune and create dvb network interface with dvbnet on the A/V pid > 2 - Bring up dvb0_0 in promisc mode (otherwise won't work) > 3 - Start a multicast routing daemon to route packet to eth0 > 4 - Start VLC with the given SDP and enjoy your TV! Thank you for this procedure :) > > For your information, I've started (first step) to write a library to > > decode ESG in order to obtain SDP (aka PMT like in DVB-H systems) > > > > Please see DVB-APPS repository for LIBESG : > > http://linuxtv.org/hg/dvb-apps?mf=8b37590c8695;path=/lib/libesg/;style=gi > >tweb > > Very good! > I hacked in some c code to parse ESG and extract SDP files. > It's ugly, incomplete and mostly unreadable code, but works here. > I'll be happy to share it, you are warned :) Why not :) ! My code is only a library to parse most of ESG fragments (in LGPL). I wanted to code application against my library, but I have no time yet. Stephane > regards, > Francesco ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
[linux-dvb] Re: DVB-H information
Stéphane Esté-Gracias wrote: I found on Internet a free application to extract PES or ES from a TS, but don't know how I can 'de-packetize' the RTP/UDP/IP stack to visualize the raw H.264 stream. Do you know application in order to do it? I used dvbnet apps (available with Linux DVB) to receive datagrams from TS on a virtual net interface and routing to a multicast group. Then you should be able to dump the H.264 ES with mplayer, I used VLC to watch audio and video. regards, Francesco Hello Francesco, I've tried without any succes to read DVB-H streams throught dvbnet and VLC. I only use tcpdump to extract packets from dvbnet interface. To get the ESG I've done the following: 1 - Tune and create dvb network interface with dvbnet on the ESG pid 2 - Bring up dvb0_0 in promisc mode (otherwise won't work) 3 - Start a multicast routing daemon to route packet to eth0 4 - Receive ALC/FLUTE packets to reassemble ESG using bootstrap 5 - Extract SDP file from ESG In 3) I used smcroute as I had problems with mrouted. In 4) I used MAD-FLUTE receiver In 5) you can have the SDP inspecting ESG fragments with a hex editor To get A/V you need the SDP and then again: 1 - Tune and create dvb network interface with dvbnet on the A/V pid 2 - Bring up dvb0_0 in promisc mode (otherwise won't work) 3 - Start a multicast routing daemon to route packet to eth0 4 - Start VLC with the given SDP and enjoy your TV! For your information, I've started (first step) to write a library to decode ESG in order to obtain SDP (aka PMT like in DVB-H systems) Please see DVB-APPS repository for LIBESG : http://linuxtv.org/hg/dvb-apps?mf=8b37590c8695;path=/lib/libesg/;style=gitweb Very good! I hacked in some c code to parse ESG and extract SDP files. It's ugly, incomplete and mostly unreadable code, but works here. I'll be happy to share it, you are warned :) regards, Francesco ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Re: DVB-H information
> > I found on Internet a free application to extract PES or ES from a TS, > > but don't know how I can 'de-packetize' the RTP/UDP/IP stack to > > visualize the raw H.264 stream. Do you know application in order to do > > it? > > I used dvbnet apps (available with Linux DVB) to receive datagrams from > TS on a virtual net interface and routing to a multicast group. > Then you should be able to dump the H.264 ES with mplayer, > I used VLC to watch audio and video. > > regards, > Francesco Hello Francesco, I've tried without any succes to read DVB-H streams throught dvbnet and VLC. I only use tcpdump to extract packets from dvbnet interface. How do you route to a multicast group and read with VLC ? For your information, I've started (first step) to write a library to decode ESG in order to obtain SDP (aka PMT like in DVB-H systems) Please see DVB-APPS repository for LIBESG : http://linuxtv.org/hg/dvb-apps?mf=8b37590c8695;path=/lib/libesg/;style=gitweb Regards, Stephane ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
[linux-dvb] Re: DVB-H information
Paolo Pasquali wrote: > Thanks a lot Francesco. > So, I have a recorded TS on my PC. With dvbnet apps I 'open' the *.ts > and 'send' the ts to be dump to mplayer. Is it right? No, dvbnet needs a real DVB adapter supported by a linux-dvb kernel module, so it is an online solution. If you have a recorded TS you can try with dvbloopback module, never tried myself though. regards, Francesco ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
[linux-dvb] Re: DVB-H information
Paolo Pasquali wrote: Hi to all, I'm Paolo Pasquali, Telecommunications engineer, and I'm working on the DVB-H TS quality. This is the first time I post in this mailing-list. I have a problem with a DVB-H Transport Stream. What kind of problem? I found on Internet a free application to extract PES or ES from a TS, but don't know how I can 'de-packetize' the RTP/UDP/IP stack to visualize the raw H.264 stream. Do you know application in order to do it? I used dvbnet apps (available with Linux DVB) to receive datagrams from TS on a virtual net interface and routing to a multicast group. Then you should be able to dump the H.264 ES with mplayer, I used VLC to watch audio and video. regards, Francesco ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
