Yes Bernie, that's it. My distro is Gentoo, which means it i compiled from a Gentoo source. I believe I can recompile it with the yuv4mpeg use flag. I'll post another message once I succeed with the original command set just to close this thread. Thank you for your help - Janos
On Sat, 8 Oct 2022 06:29:22 +0200 Bernhard Praschinger <bernh...@griesbach.at> wrote: > Hallo, > > It seems that your version of mplayer was not complied with the > That is the important line: Error opening/initializing the selected > video_out (-vo) device. > > Please do a test: > mplayer -vo help > You should find a line like: > yuv4mpeg yuv4mpeg output for mjpegtools > > If not, it would mean to me that mplayer was compiled without > yuv4mpeg support. My version of mplayer: MPlayer 1.4-7 > > If you did compile it on you own please check when running t > configure that you find in the enabled driver yuv4mpeg. > Enabled optional drivers: > Input: ftp pvr tv-v4l2 tv cddb cdda dvdread vcd dvb networking > Codecs: libvpx xvid ffmpeg(internal) real xanim faac libmpeg2 > mpg123 speex > Audio output: alsa pulse oss v4l2 sdl mpegpes(dvb) > Video output: v4l2 matrixview opengl sdl pnm jpeg mpegpes(dvb) > fbdev xvidix cvidix x11 xover yuv4mpeg md5sum tga > ---END--- > > If you use the precompiled version from your distribution I would > recommend that you download the source and compile it on your own. > > > Janos G Komaromi wrote: > > Hello Bernie, thanks. Here is what happened: > > > > janos@andraslinux ~/tmp $ cat stream.yuv | yuvscaler -O SVCD | > > mpeg2enc -f 4 -o video_svcd.m2v & mplayer -nosound -noframedrop -vo > > yuv4mpeg ezcap0001.avi > > > > [1] 21535 INFO: [yuvscaler] yuvscaler 2.2.1 11-Dec-2007 > > INFO: [yuvscaler] (C) 2001-2004 Xavier Biquard > > <xbiqu...@free.fr>, yuvscaler -h for help, or man yuvscaler INFO: > > [mpeg2enc] SETTING EXTENDED MMX for MOTION! INFO: [mpeg2enc] > > SETTING SSE and MMX for TRANSFORM! INFO: [mpeg2enc] SETTING > > EXTENDED MMX for PREDICTION! MPlayer 1.4-11.3.0 (C) 2000-2019 > > MPlayer Team > > > > Playing ezcap0001.avi. > > libavformat version 58.76.100 (external) > > AVI file format detected. > > [aviheader] Video stream found, -vid 0 > > [aviheader] Audio stream found, -aid 1 > > VIDEO: [XVID] 800x592 24bpp 30.000 fps 896.5 kbps (109.4 > > kbyte/s) Error opening/initializing the selected video_out (-vo) > > device. No stream found. > > > > > > Exiting... (End of file) > > janos@andraslinux ~/tmp $ ls > > ezcap0001.avi stream.yuv > > > > I don't understand. if I issue command > > > > janos@andraslinux ~/tmp $ mplayer ezcap0001.avi > > > > MPlayer 1.4-11.3.0 (C) 2000-2019 MPlayer Team > > > > Playing ezcap0001.avi. > > libavformat version 58.76.100 (external) > > AVI file format detected. > > [aviheader] Video stream found, -vid 0 > > [aviheader] Audio stream found, -aid 1 > > VIDEO: [XVID] 800x592 24bpp 30.000 fps 896.5 kbps (109.4 > > kbyte/s) > > ========================================================================== > > Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family > > libavcodec version 58.134.100 (external) [mpeg4 @ > > 0x7ff6ba3a8f60]Requested frame threading with a custom > > get_buffer2() implementation which is not marked as thread safe. > > This is not supported anymore, make your callback thread-safe. > > Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4) > > ========================================================================== > > Load subtitles in ./ > > ========================================================================== > > Opening audio decoder: [mpg123] MPEG 1.0/2.0/2.5 layers I, II, III > > AUDIO: 44100 Hz, 2 ch, s16le, 64.0 kbit/4.54% (ratio: 8000->176400) > > Selected audio codec: [mpg123] afm: mpg123 (MPEG 1.0/2.0/2.5 layers > > I, II, III) > > ========================================================================== > > AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample) Starting > > playback... Movie-Aspect is undefined - no prescaling applied. > > VO: [xv] 800x592 => 800x592 Planar YV12 > > Movie-Aspect is 1.35:1 - prescaling to correct movie aspect. > > VO: [xv] 800x592 => 800x592 Planar YV12 > > A: 16.2 V: 16.2 A-V: -0.001 ct: 0.012 486/486 27% 0% 0.9% 17 0 > > > > Exiting... (Quit) > > janos@andraslinux ~/tmp $ > > > > the file starts to play almost imediately in a new window, perfectly > > with sound and picture. So the video-out (-vo) device works > > automatically with mplayer. > > > > Janos > > P.S. I'm sending this message from my other email address, a > > mailserver on my fitlet machine where I try glav, etc. > > > > On Thu, 06 Oct 2022 08:06:19 -0400 > > "Janos G. Komaromi" <ja...@jankom.net> wrote: > > > >> -------- Forwarded Message -------- > >> From: Bernhard Praschinger <bernh...@griesbach.at> > >> To: Janos G. Komaromi <ja...@jankom.net>, MJPEG-tools user list > >> <mjpeg-users@lists.sourceforge.net> > >> Subject: Re: [Mjpeg-users] glav error opening .avi file > >> Date: Thu, 6 Oct 2022 06:27:00 +0200 > >> Mailer: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 > >> Firefox/68.0 SeaMonkey/2.53.13 > >> > >> Hallo, > >> > >> mkfifo creates a file where one file/process reads it's content, > >> and another process puts data into. You need is when program data > >> can't pipe > >> direct to each other. So you create the named pipe. You start > >> afterwards > >> the process that reads the data and as last step you put the data > >> into it. > >> > >> The commands for the video would than be in one terminal window: > >> > mkfifo stream.yuv > >> > cat stream.yuv │ yuvscaler -O SVCD │ mpeg2enc -f 4 -o > >> video_svcd.m2v & > >> > mplayer -nosound -noframedrop -vo yuv4mpeg ezcap0001.avi > >> > >> Don't forget to add the & in the 2nd line to start the process in > >> the background. You don't need to start mplayer in the background. > >> > >> For audio: > >> > mplayer -vo null -ao pcm:file=audio.wav ezcap0001.avi > >> > cat audio.wav │ mp2enc -v 2 -V -o sound.mp2 > >> > >> Afterwards mutiplex the files together with: > >> mplex -f 4 sound.mp2 video_svcd.m2v -o SVCD.mpg > >> > >> You have then a encoded MPEG file with ist suitable for SVCD. You > >> need to change the commands for you need. > >> What do you want with the AVI file ? > >> > >> If you encounter errors please add the output to the mail. > >> > >> Janos G. Komaromi wrote: > >>> 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. > 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
