The video is encoded by the broadcaster, not me. I have
a digital TV receiver connected to a PC which has software
which can record the digital TV MPEG2 stream to its hard
disk. With a quick demux/remux the recordings can be put onto
DVD with no MPEG transcoding at all, i.e. the DVD contains
the original broadcast MPEG2 video and MP2 audio. The
trouble is that the PC software uses an ordinary clock timer to
start and stop the recording, like a normal VHS VCR, so there
is usually extra unwanted video at the start and end. The
mplex tool lets you chop unwanted material off the end with
the -l option but I can't find a way to have the multiplexed
output start from <n> seconds into the streams being muxed.
The fact that mplex can segment the input streams into multiple
standalone muxed files (e.g. for splitting across CDs)
demonstrates that the principle is possible.
For me there is no problem with the "edit" being done on GOP
boundaries (as I guess happens with the existing segmentation
facility), I don't need frame-accurate editing. All I am looking to
do is to archive my favourite programmes to DVD instead of
VHS, nothing any more sophisticated, so no intelligent mid-GOP
sequence start is required.
Any help/direction would be very much appreciated.
Regards,
Tim Hewett.
On Sunday, Jan 19, 2003, at 06:21 Europe/London, Bernhard Praschinger wrote:
HalloI am wondering if there is a way to use mplex such that it starts fromNo.
<n> seconds into the audio and video sources given to it. At present
it can be made to mplex <n> seconds of material from the start of
the audio and video sources but is there a way to perform a simple
kind of editing to cut superfluous material from both the start and end?
You should edit the video BEFORE encoding it.
Some have tired writing a programm to edit MPEG streams. But it does not
work reliable.
auf hoffentlich bald,
Berni the Chaos of Woodquarter
Email: [EMAIL PROTECTED] [EMAIL PROTECTED]
www: http://www.lysator.liu.se/~gz/bernhard
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