[CinCVS] MPEG Video - Audio sync problem on Debian Etch AMD64
Hello, I'm using Cinelerra 2.1.0-2svn20070209 on Debian Etch AMD64 from http://giss.tv ./ Packages. When opening an MPEG Video clip (mpeg1video, mp3 audio, converted from flash video using ffmpeg) of several minutes (the video plays just fine in Xine) , I have the following problem. When playing the video, audio and video are in sync at the beginning. However, as the video progresses, the audio starts to lag (about 1s per minute of video). The audio and video tracks are of equal length in the main window and show up as such. Due to the audio lagging, I can not get the last part of the audio to play - it simply seems missing from the audio track (although the audio and video tracks show up as being of equal length). Even when I only send the audio track to the Compositor window, I never hear the last part. This audio lag (and missing endpiece) also affects rendering to (at least) MPEG1 video and mp3 audio. The lag is just the same in the rendered file as in the compositor window. Actually what happens is when I cut some part of both video and audio tracks, I have part of the video track and a delayed part of the audio track, which then results in a no-good output file. I have googled for mpeg sync problems and have some people with similar problems, but have not found an effective answer to my problem. Does anyone know what's going on? Thanks, Pieter ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
[CinCVS] newbie - X11-XV output screw up, ?
Hello, Now that I'm able to edit my mpg video clips on Debian etch I have noticed the following problem When rendering to mpeg2 video (I have copied /usr/bin/mpeg2enc to mpeg2enc.plugin) and mp3 audio (and combining the output files with mplex), playing this resulting file in the viewer yields messed up colors. Playing it in xine or vlc on the same X server also gives the messed up colors. Howeever, the file is OK as playing it on a freshly started X display yields the desired result. I am using X11-XV video output. Is this a known problem? Also, rendering to theora/vorbis yields the same result in xine. Alas, I cannot load the rendered file in cinelerra, it crashes with things like Cinelerra 2.1CV (C) 2006 Heroine Virtual Ltd. Compiled on Thu Dec 28 02:49:32 CET 2006 Cinelerra is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. There is absolutely no warranty for Cinelerra. signal_entry: got SIGSEGV my pid=12306 execution table size=16: mwindow.C: load_filenames: 1052 mwindow.C: load_filenames: 1056 mwindow.C: load_filenames: 1134 mwindow.C: load_filenames: 1139 mwindow.C: load_filenames: 1142 mwindow.C: load_filenames: 1144 mwindow.C: load_filenames: 1147 mwindow.C: load_filenames: 1151 FileOGG::open_file 60 mwindow.C: load_filenames: 1153 FileOGG::open_file 60 vrender.C: run: 414 vrender.C: process_buffer: 103 vrender.C: process_buffer: 113 vrender.C: run: 416 vrender.C: run: 555 signal_entry: lock table size=11 0x857c798 BC_Synchronous::next_command BC_Synchronous::run 0x8c529d0 TransportQue::output_lock PlaybackEngine::run 0x8bde5a8 BC_WindowBase::event_condition BC_WindowBase::get_event 0x8bcae20 BC_WindowBase::event_condition BC_WindowBase::get_event 0x8ce13c8 BC_WindowBase::event_condition BC_WindowBase::get_event 0x8b0bcd8 BC_WindowBase::event_condition BC_WindowBase::get_event 0x8cb0ad0 ResourceThread::draw_lock ResourceThread::run 0x8bc9608 TransportQue::output_lock PlaybackEngine::run 0x89f93c8 BC_WindowBase::event_condition BC_WindowBase::get_event 0x8c54d38 BC_WindowBase::event_condition BC_WindowBase::get_event 0x8b74748 BC_WindowBase::event_condition BC_WindowBase::get_event 0x8ce6ed50 IndexThread::output_lock IndexThread::run BC_Signals::dump_buffers: buffer table size=0 BC_Signals::delete_temps: deleting 0 temp files SigHandler::signal_handler total files=0 Aborted Any ideas on the X11-XV output? Thanx, Pieter ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] newbie - X11-XV output screw up, ?
Kevin Brosius wrote: On 2006-12-30 12:50, Pieter Thysebaert wrote: Hello, Now that I'm able to edit my mpg video clips on Debian etch I have noticed the following problem When rendering to mpeg2 video (I have copied /usr/bin/mpeg2enc to mpeg2enc.plugin) and mp3 audio (and combining the output files with mplex), playing this resulting file in the viewer yields messed up colors. Playing it in xine or vlc on the same X server also gives the messed up colors. Howeever, the file is OK as playing it on a freshly started X display yields the desired result. I am using X11-XV video output. XV is a video overlay provided by your video driver/Xserver. Does the standard X11 output driver in cinelerra work ok? What video card and Xserver/driver are you using? Especially if you also see it in xine, this is most likely a driver/Xserver issue. It probably is. I'm on X.org 7.0 with an Intel 945GM integrated video chip (Dell laptop...). Pieter ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
[CinCVS] Newbie - problem with simple MPEG clip playback
Hello,
I'm currently running Debian Etch and have installed cinelerra today from
deb http://www.kiberpipa.org/~minmax/cinelerra/builds/sid/ ./
I also have deb http://www.debian-multimedia.org sid main in my
sources.list (next to the etch entry for the same repository)
The package cinelerra installs fine, but it chokes on MPEG video created
with ffmpeg from youtube FLV files.
Symptoms: pressing play in the viewer just skips the timeline to the
end of the video, while just making a popping sound (using the ALSA
sound driver)
ffmpeg -i says about the file
Input #0, mpeg, from 'brent.mpg':
Duration: 00:03:53.6, start: 0.50, bitrate: 570 kb/s
Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 320x240, 104857 kb/s,
25.00 fps(r)
Stream #0.1[0x1c0]: Audio: mp2, 22050 Hz, mono, 56 kb/s
Cinelerra media info lists 2 audio channels 22050 Hz (bits: unknown),
320x240 video 25fps
This mpg file was created from a flv file using ffmpeg by issuing the
command
ffmpeg -i brent.flv -ab 56 -ar 22050 -b 500 -s 320x240 brent.mpg
I have similar problems with other mpg files created from flv files; i'm
using an ffmpeg version on my Debian sarge box:
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
configuration: --prefix=/usr --libdir=${prefix}/lib
--incdir=${prefix}/include/ffmpeg --enable-shared --enable-mp3lame
--enable-gpl --enable-faad --mandir=${prefix}/share/man --enable-vorbis
--enable-pthreads --enable-faac --enable-xvid --enable-dts
--enable-amr_nb --enable-amr_wb --enable-pp --enable-libogg --enable-a52
--enable-theora --enable-libgsm --enable-x264 --enable-a52bin
libavutil version: 49.0.0
libavcodec version: 51.7.0
libavformat version: 50.3.0
built on Mar 18 2006 07:27:38, gcc: 3.3.5 (Debian 1:3.3.5-13)
The same clips can be played in MainActor demo version 5.5.37 (without
sound though).
So I suppose my questions come down to:
1. Is a normal working cinelerra from kiberpipa supposed to support the
mpg files I'm trying to feed it?
2. Has anyone tried to run cinelerra on debian etch with minimal sid
packages?
3. Maybe some more packages from Debian multimedia on my system need to
be upgraded from etch to sid?
Thanx,
Pieter
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Re: [CinCVS] Newbie - problem with simple MPEG clip playback
Nicolas Maufrais wrote:
Hello,
Could you put somewhere on the internet the mpeg file brent.mpg, or
brent.flv? That way we could have a look at it.
Nicolas.
Thx for your quick response;
for starters, I have found my mistake: the flv video contains mp3
audio (single track 22050 Hz).
When encoding to brent.mpg, audio was encoded as mp2 mono and
mis-recognized in cinelerra as having two tracks.
When I gave the additional option -acodec mp3 to ffmpeg, I have created
a brent2.mpg file which is now correctly recognized by cinelerra as
having a single audio track; playback now seems to work as normal.
When I go back to work in January, I might upload the files (asymmetric
broadband at home), but the only difference in ffmpeg encoding I used
is the -acodec mp3 switch. Interestingly though, ffmpeg -i on both files
still reads
Input #0, mpeg, from 'brent.mpg': -- without -acodec
mp3 switch
Duration: 00:03:53.6, start: 0.50, bitrate: 570 kb/s
Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 320x240, 104857 kb/s,
25.00 fps(r)
Stream #0.1[0x1c0]: Audio: mp2, 22050 Hz, mono, 56 kb/s
Input #0, mpeg, from 'brent2.mpg' -- with -acodec mp3
switch:
Duration: 00:03:53.7, start: 0.50, bitrate: 570 kb/s
Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 320x240, 104857 kb/s,
25.00 fps(r)
Stream #0.1[0x1c0]: Audio: mp2, 22050 Hz, mono, 56 kb/s
Which looks the same to me, although the file sizes are different (by a
little) and only the latter file works ok in cinelerra.
Pieter
On Fri, Dec 29, 2006 at 06:23:28PM +0100, Pieter Thysebaert wrote:
Hello,
I'm currently running Debian Etch and have installed cinelerra today from
deb http://www.kiberpipa.org/~minmax/cinelerra/builds/sid/ ./
I also have deb http://www.debian-multimedia.org sid main in my
sources.list (next to the etch entry for the same repository)
The package cinelerra installs fine, but it chokes on MPEG video created
with ffmpeg from youtube FLV files.
Symptoms: pressing play in the viewer just skips the timeline to the
end of the video, while just making a popping sound (using the ALSA
sound driver)
ffmpeg -i says about the file
Input #0, mpeg, from 'brent.mpg':
Duration: 00:03:53.6, start: 0.50, bitrate: 570 kb/s
Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 320x240, 104857 kb/s,
25.00 fps(r)
Stream #0.1[0x1c0]: Audio: mp2, 22050 Hz, mono, 56 kb/s
Cinelerra media info lists 2 audio channels 22050 Hz (bits: unknown),
320x240 video 25fps
This mpg file was created from a flv file using ffmpeg by issuing the
command
ffmpeg -i brent.flv -ab 56 -ar 22050 -b 500 -s 320x240 brent.mpg
I have similar problems with other mpg files created from flv files; i'm
using an ffmpeg version on my Debian sarge box:
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
configuration: --prefix=/usr --libdir=${prefix}/lib
--incdir=${prefix}/include/ffmpeg --enable-shared --enable-mp3lame
--enable-gpl --enable-faad --mandir=${prefix}/share/man --enable-vorbis
--enable-pthreads --enable-faac --enable-xvid --enable-dts
--enable-amr_nb --enable-amr_wb --enable-pp --enable-libogg --enable-a52
--enable-theora --enable-libgsm --enable-x264 --enable-a52bin
libavutil version: 49.0.0
libavcodec version: 51.7.0
libavformat version: 50.3.0
built on Mar 18 2006 07:27:38, gcc: 3.3.5 (Debian 1:3.3.5-13)
The same clips can be played in MainActor demo version 5.5.37 (without
sound though).
So I suppose my questions come down to:
1. Is a normal working cinelerra from kiberpipa supposed to support the
mpg files I'm trying to feed it?
2. Has anyone tried to run cinelerra on debian etch with minimal sid
packages?
3. Maybe some more packages from Debian multimedia on my system need to
be upgraded from etch to sid?
Thanx,
Pieter
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