Hi,
Some problems related to multimedia.
I wished to copy part of a DVD recording (on my home DVD, from the TV) for a
friend.
As my computer (Sempron AMD with 500 MB RAM and 1GB swap, running debian
testing/unstable) is too modest for a non-linear editor. I tried to use
transcode.
$ tcccat -i /dev/dvd -T 2,-1 2>/dev/null >mydvd.vob imported the program,
which played correctly with gmplayer
$ tcprobe -i /dev/dvd -T 2,-1 2>/dev/null gave:
(dvd_reader.c) mpeg2 pal 4:3 U0 720x576 video
(dvd_reader.c) ac3 drc 48kHz 2Ch
[tcprobe] summary for /dev/dvd, (*) = not default, 0 = not detected
import frame size: -g 720x576 [720x576]
aspect ratio: 4:3 (*)
frame rate: -f 25.000 [25.000] frc=3
audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x2000 [0x2000]
[tcprobe] V: 97550 frames, 3902 sec @ 25.000 fps
Then I extracted the part of interest with:
$ ffmpeg -i mydvd.vob -vcodec copy -scodec copy -ss 00:02:30 -t 00:42:25
part1.vob
part1.vob played with gmplayer but the sound was a good 2seconds ahead of
the image.
During the playback i tried to demultiplex part1.vob:
$ tcextract -i part1.vob -t vob -x ac3 -a 0>part1.audio
But the file part1.audio was empty
Trying:
$ tcprobe -i part1.vob, I got
[tcprobe] MPEG program stream (PS)
[tcprobe] summary for dvorak.vob, (*) = not default, 0 = not detected
no audio track: use "null" import module for audio
Any suggestions?
Thanks, Avraham
