dvb mpeg2?
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Quoted 9 lines · Tim Farrington
Can you please give me some guidance as to how to discover what format is output from the v4l-dvb driver.
The DVB-T standard is, as I understand it, MPEG2, however with kaffeine, me-tv, mplayer if I record to a file, (dump from the raw data stream),
it appears to be stored as a MPEG1 file.
If I use GOPchop, it will not open any of these files, as it will only open MPEG2 files.
Well if I remember it right, a DVB stream (in MPEG2) is MPEG2-TS and GOPchop will handle MPEG2-PS!
Cheers, Tobias
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Quoted 11 lines · Tobias Stoeber
Quoted 9 lines · Tim Farrington
Can you please give me some guidance as to how to discover what format is output from the v4l-dvb driver.
The DVB-T standard is, as I understand it, MPEG2, however with kaffeine, me-tv, mplayer if I record to a file, (dump from the raw data stream),
it appears to be stored as a MPEG1 file.
If I use GOPchop, it will not open any of these files, as it will only open MPEG2 files.
Quoted 5 lines
Well if I remember it right, a DVB stream (in MPEG2) is MPEG2-TS and GOPchop will handle MPEG2-PS!
Cheers, Tobias
Hi Tobias,
Do you mean GOPchop won't open MPEG2-TS?
What I'm after is some tool/means which will accurately display a format descriptor for
a MPEG(x) file/stream.
MPEG2-TS is what is supposed to be the format, but how can I discover if it really is?
Regards,
Tim Farrington
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Hi Tim,
Quoted 1 line · Tim Farrington
Do you mean GOPchop won't open MPEG2-TS?
Yes, that's what I suppose. That it won't open MPEG2-TS.
Quoted 6 lines
What I'm after is some tool/means which will accurately display a format descriptor for
a MPEG(x) file/stream.MPEG2-TS is what is supposed to be the format, but how can I discover if it really is?
Well, you could possibly try
mplayer -identify -vo null -ao null file.mpg
Cheers, Tobias
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Quoted 24 lines · On Thursday 24 July 2008 13:13:51 Tim Farrington wrote:
Quoted 11 lines · Tobias Stoeber
Quoted 9 lines · Tim Farrington
Can you please give me some guidance as to how to discover what format is output from the v4l-dvb driver.
The DVB-T standard is, as I understand it, MPEG2, however with kaffeine, me-tv, mplayer if I record to a file, (dump from the raw data stream),
it appears to be stored as a MPEG1 file.
If I use GOPchop, it will not open any of these files, as it will only open MPEG2 files.Quoted 4 lines
Well if I remember it right, a DVB stream (in MPEG2) is MPEG2-TS and GOPchop will handle MPEG2-PS!
Cheers, Tobias
Hi Tobias,
Do you mean GOPchop won't open MPEG2-TS?What I'm after is some tool/means which will accurately display a format descriptor for
a MPEG(x) file/stream.
Quoted 6 lines
MPEG2-TS is what is supposed to be the format, but how can I discover if it really is?
Regards,
Tim Farrington
www.avidemux.org will open it.
file file.ts should say something about it
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Just a short correction to my last mail ...
mplayer -identify -vo null -ao null -frames 0 file.mpg
should be better ;) Doesn't try to display any frames.
Cheers.
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Quoted 36 lines · Nico Sabbi
Quoted 26 lines · On Thursday 24 July 2008 13:13:51 Tim Farrington wrote:
Quoted 12 lines · Tobias Stoeber
Quoted 10 lines · Tim Farrington
Can you please give me some guidance as to how to discover what format is output from the v4l-dvb driver.
The DVB-T standard is, as I understand it, MPEG2, however with kaffeine, me-tv, mplayer if I record to a file, (dump from the raw data stream),
it appears to be stored as a MPEG1 file.
If I use GOPchop, it will not open any of these files, as it will only open MPEG2 files.Quoted 5 lines
Well if I remember it right, a DVB stream (in MPEG2) is MPEG2-TS and GOPchop will handle MPEG2-PS!
Cheers, Tobias
Hi Tobias,
Do you mean GOPchop won't open MPEG2-TS?What I'm after is some tool/means which will accurately display a format descriptor for
a MPEG(x) file/stream.Quoted 7 lines
MPEG2-TS is what is supposed to be the format, but how can I discover if it really is?
Regards,
Tim Farrington
Quoted 9 lines
www.avidemux.org will open it.
file file.ts should say something about it_______________________________________________
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Hi Nico,
I was a huge fan of avidemux until about 2 hours ago when I discovered that editing a file caused all sorts of grief with a/v sync. Its doc's tell me to send the file through Projectx first, etc
Hence, I was attracted to gopchop.
All I would like is an mpeg gui editor which can simply edit a file dumped from
my dvb stream. I've tried many such as Cinerra (I think that's its name), but this help from Tobias may give me a clue as to why many of them won't open
these files - they are MPEG2-TS and the apps perhaps need MPEG2-PS
Regards,
Tim Farrington
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Quoted 6 lines · On Thursday 24 July 2008 14:02:17 you wrote:
Hi Nico,
I was a huge fan of avidemux until about 2 hours ago when I discovered that editing a file caused all sorts of grief with a/v sync. Its doc's tell me to send the file through Projectx first, etc
avidemux is still the way to go: in order to fix the synchrony just run mplayer on the file beforehand taking notice of the value of "rc" on the status line when the delay between audio and video drops to 0, then insert that value in the delay field of avidemux (-N)
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Quoted 5 lines · On Thursday 24 July 2008 13:02:17 Tim Farrington wrote:
Hi Nico,
I was a huge fan of avidemux until about 2 hours ago when I discovered that editing a file caused all sorts of grief with a/v sync. Its doc's tell me to send the file through Projectx first, etc
Quoted 8 lines
Hence, I was attracted to gopchop.
All I would like is an mpeg gui editor which can simply edit a file dumped from
my dvb stream. I've tried many such as Cinerra (I think that's its name), but this help from Tobias may give me a clue as to why many of them won't open
these files - they are MPEG2-TS and the apps perhaps need MPEG2-PS
I tend to use dvbcut for editing MPEG2-TS files these days unless it's a programme I recorded from five US then I have to run it through projectx and avidemux first otherwise I get a flickering effect when I play the file from DVD.
Signature · 9 lines
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Quoted 5 lines
MPEG2-TS is what is supposed to be the format, but how can I discover if it really is?
Regards,
Tim Farrington
I use mplayer e.g.
mplayer -identify 06-29_20_00_Top_Gear.ts -frames 0 -vo null -nosound
Which after lots of output finally gives the following and you can see at the bottom in my case that this is a Mpeg 1/2 video, which is encapsulated inside an mpegts file (ID_DEMUXER line below). For reference I recorded this file from my DVB-T USB stick using mplayer with the -dumpstream command.
VIDEO: MPEG2 720x576 (aspect 3) 25.000 fps 6500.0 kbps (812.5 kbyte/s) ID_FILENAME=06-29_20_00_Top_Gear.ts
ID_DEMUXER=mpegts
ID_VIDEO_FORMAT=0x10000002
ID_VIDEO_BITRATE=6500000
ID_VIDEO_WIDTH=720
ID_VIDEO_HEIGHT=576
ID_VIDEO_FPS=25.000
ID_VIDEO_ASPECT=0.0000
ID_LENGTH=2074.19
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred colorspace: Mpeg PES)
VDec: using Mpeg PES as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [null] 720x576 => 720x576 Mpeg PES
Selected video codec: [mpegpes] vfm: mpegpes (MPEG-PES output (.mpg or DXR3/IVTV/DVB card))
==========================================================================
ID_VIDEO_CODEC=mpegpes
Audio: no sound
Starting playback...
Exiting... (End of file)
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