[FFmpeg-user] how to drop an input stream
gheine at mathnmaps.com
gheine at mathnmaps.com
Mon Sep 2 00:27:33 CEST 2013
Have a short video clip ripped from a DVD (probably using mplayer
-dumpstream).
Here is what ffprobe says about the clip:
<CODE>
ffprobe version git-2013-08-25-626739e Copyright (c) 2007-2013 the
FFmpeg developers
built on Aug 24 2013 20:38:02 with gcc 4.6 (Ubuntu/Linaro
4.6.3-1ubuntu5)
configuration: --prefix=/home/gheine/ffmpeg_build
--extra-cflags=-I/home/gheine/ffmpeg_build/include
--extra-ldflags=-L/home/gheine/ffmpeg_build/lib
--bindir=/home/gheine/bin --extra-libs=-ldl --enable-gpl --enable-libass
--enable-libfdk-aac --enable-libmp3lame --enable-libopus
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264
--enable-nonfree --enable-x11grab
libavutil 52. 42.100 / 52. 42.100
libavcodec 55. 29.100 / 55. 29.100
libavformat 55. 14.102 / 55. 14.102
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 82.102 / 3. 82.102
libswscale 2. 5.100 / 2. 5.100
libswresample 0. 17.103 / 0. 17.103
libpostproc 52. 3.100 / 52. 3.100
[NULL @ 0xafe11e0] start time is not set in estimate_timings_from_pts
Input #0, mpeg, from 'EE.mpg':
Duration: 00:00:36.45, start: 0.514689, bitrate: 6504 kb/s
Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 448 kb/s
Stream #0:2[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [SAR
8:9 DAR 4:3], max. 9000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Unsupported codec with id 1145979222 for input stream 0k
</CODE>
What's the best way to get rid of that unwanted data stream 0:0 ?
Followup question: ultimate goal is to rewrite this clip onto another
dvd.
Here is the result using dvdauthor:
<CODE>
$ dvdauthor -o ../Test/ -t EE.mpg --video=ntsc
DVDAuthor::dvdauthor, version 0.7.0.
Build options: gnugetopt imagemagick iconv freetype fribidi fontconfig
Send bug reports to <dvdauthor-users at lists.sourceforge.net>
INFO: no default video format, must explicitly specify NTSC or PAL
INFO: dvdauthor creating VTS
STAT: Picking VTS 07
STAT: Processing EE.mpg...
WARN: Audio pts for channel 0 moves backwards by 2879; please
remultiplex input.
WARN: Previous sector: 0.500 - 0.564
WARN: Current sector: 0.532 - 0.564
WARN: Audio pts for channel 0 moves backwards by 1; please remultiplex
input.
WARN: Previous sector: 0.532 - 0.564
WARN: Current sector: 0.564 - 0.596
WARN: Audio pts for channel 0 moves backwards by 2; please remultiplex
input.
WARN: Previous sector: 0.948 - 0.980
WARN: Current sector: 0.979 - 1.011
ERR: Cannot infer pts for VOBU if there is no audio or video and it is
the
ERR: first VOBU.`
</CODE>
Will getting rid of stream 0:0 fix this problem?
Thanks for any help -
George H.
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