Hi Bernie, thanks for your answer. Sorry, I have not been doing video edits lately, so I need a little more help. Lat time I used Cinelerra for video edit on my old FC-3 desktop.
I tried Quote >mkfifo stream.yuv > >cat stream.yuv │ yuvdenoise │ yuvscaler -O SVCD │ mpeg2enc -f 4 -o > video_svcd.m2v > >mplayer -nosound -noframedrop -vo yuv4mpeg anyfile.mpg > > For Audio: > >mplayer -vo null -ao pcm:file=anyfile.wav anyfile.mpg > > cat anyfile.wav │ mp2enc -v 2 -V -o sound.mp2 > Unquote but did not get far. My video clip is "ezcap0001.avi" as shown in DETAILS below. What are the exact commands I need to issue? How do I make the "stream.yuv"? If I just issue the command "mkfifo stream.yuv" it creates a zero byte pipe file that the next command uses: "cat stream.yuv | yuvdenoise.... etc", but it does not do anything. And what is the "anyfile.mpg" output? Is it the file that can be edited with glav? If it is only the picture content of my video how the edited version will be synchronized with the unedited sound part of the original clip? Sorry, these may be stupid questions but I'd like to understand the whole thing better. OK, there is the RTFM principle, and I read MJPEG HOWTO document 4.1 through 4.3 but still don't know how to edit my "ezcap0001.avi" video file with glav. PLease, explain - Janos P.S. tried other opensource linux video editors on my Gentoo machine, but openshot does not run, and could not compile flowblade yet. I like the simplicity of your glav. On Thu, 2022-09-29 at 19:20 +0200, Bernhard Praschinger wrote: ... > > > > DETAILS: > > janos@andraslinux ~/tmp $ lavplay -p S -v 2 ezcap0001.avi > > lavplay2.2.1 > > lavtools version 2.2.1 > > --DEBUG: [lavplay] Opening video file ezcap0001.avi ... > > **ERROR: [lavplay] Error opening ezcap0001.avi > > > > janos@andraslinux ~/tmp $ file ezcap0001.avi > > ezcap0001.avi: RIFF (little-endian) data, AVI, 800 x 592, 30.00 > > fps, > > video: XviD, audio: MPEG-1 Layer 3 (stereo, 44100 Hz) > > > > janos@andraslinux ~/tmp $ ffprobe ezcap0001.avi > > ffprobe version 4.4.2 Copyright (c) 2007-2021 the FFmpeg developers > > built with gcc 11.3.0 (Gentoo 11.3.0 p4) > > ... > > Input #0, avi, from 'ezcap0001.avi': > > Duration: 01:48:51.67, start: 0.000000, bitrate: 967 kb/s > > Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / > > 0x44495658), yuv420p, 800x592 [SAR 1:1 DAR 50:37], 896 kb/s, 30 > > fps, 30 > > tbr, 30 tbn, 30 tbc Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), > > 44100 Hz, stereo, fltp, 64 kb/sThe mjpegtools can only handle a few > > AVI Codecs. For example: dvvideo > and mjpeg it can't decode the encoded MPEG4 > > I don't know if ffmpeg can decode it in a format the mjpegtools > understand. But mplayer can (should) do it, here is are example > commands > for video: > >mkfifo stream.yuv > >cat stream.yuv │ yuvdenoise │ yuvscaler -O SVCD │ mpeg2enc -f 4 -o > video_svcd.m2v > >mplayer -nosound -noframedrop -vo yuv4mpeg anyfile.mpg > > For Audio: > >mplayer -vo null -ao pcm:file=anyfile.wav anyfile.mpg > > cat anyfile.wav │ mp2enc -v 2 -V -o sound.mp2 > > You find a section in the: mjpegtools manpage called: Decoding > streams > with mplayer that should explain it in more detail. I hope the > program > > I did a quick check it should work. Please test it and let us know if > it > worked. > > auf hoffentlich bald, > > Berni the Chaos of Woodquarter > > Email: bernh...@griesbach.at > www: http://www.lysator.liu.se/~gz/bernhard _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
