On Thu, 5 Feb 2004, [ISO-8859-1] Bernhard Frühmesser wrote:
> OK, compiled libquicktime and mjpegtools 1.6.2. Worked find, i didn't
> get any errors, after compiling i tested lavrec with my Pinnacle Dc10
> Card, and it worked this time, i tested it several times to make sure it
Hurrah!
> wasn't a one time thing :-)
:)
> But neither glav nor lavplay work, i get SegFault for both programms,
> borsti:/video/video # glav -v 2 test.mov
> ++: INFO: [lavplay] Initialising SDL
> ++: INFO: [lavplay] SDL YUV overlay: hardware
> ++: INFO: [lavplay] Using mmap(2) system call for capture
> ++: INFO: [lavplay] Output norm: PAL
> ++: INFO: [lavplay] Output dimensions: 768x576
> ++: Fatal signal: Segmentation Fault (SDL Parachute Deployed)
Hmmm, I wonder if 'mmap(2)' is part of the problem. Is there a
method you can use that does not involve mmap?
> borsti:/video/video # lavplay -v 2 test.mov
> --DEBUG: [lavplay] Opening video file test.mov ...
> --DEBUG: [lavplay] File: test.mov, absolute name: /video/video/test.mov
> --DEBUG: [lavplay] frames: 519
> --DEBUG: [lavplay] width: 768
> --DEBUG: [lavplay] height: 576
> --DEBUG: [lavplay] interlacing: top field first
> --DEBUG: [lavplay] frames/sec: 25.000
> --DEBUG: [lavplay] audio samps: 915516
> --DEBUG: [lavplay] audio chans: 2
> --DEBUG: [lavplay] audio bits: 16
> --DEBUG: [lavplay] audio rate: 44100
> --DEBUG: [lavplay] 1.0/SPVF = 25.0000
> --DEBUG: [lavplay] Initializing the threading system
> --DEBUG: [lavplay] Starting software playback thread
> --DEBUG: [lavplay] Playback thread: sleeping for new frames (waiting for frame 0)
> INFO: [lavplay] Initialising SDL
> INFO: [lavplay] SDL YUV overlay: hardware
> INFO: [lavplay] Using mmap(2) system call for capture
> INFO: [lavplay] Output norm: PAL
> INFO: [lavplay] Output dimensions: 768x576
> Fatal signal: Segmentation Fault (SDL Parachute Deployed)
Both of those look to be the same problem - an SDL issue of some kind.
> I have SDL Version 1.2.5 installed.
Hmmm, I wonder if a later version might work (I think 1.2.6 is
released, I use the CVS version of the SDL which I think is 1.2.7)
> I have been trying lav2yuv and lav2wav too, to see what happens, however
> with the command "lav2wav test.avi | mp2enc -o test.wav i get the
> following output (the output of lav2yuv and mpeg2enc is OK):
Does "lav2yuv test.avi | yuvplay" work? If that does not work then
I think there is a SDL bug and the problem is not in lav2yuv at all.
> [EMAIL PROTECTED]:/video/video> lav2wav test.mov | mp2enc -o test.wav
> INFO: [mp2enc] System is little endian
> **ERROR: [lav2wav] rewind failed - wav-header is corrupt
> INFO: [mp2enc] Avg slots/frame = inf; b/smp = inf; br = inf kbps
> INFO: [mp2enc] Encoding with psychoacoustic model 2 is finished
> INFO: [mp2enc] The MPEG encoded output file name is "test.wav"
Does something like this work?
lav2wav test.mov > foo.wav
mp2enc -o test.wav < foo.wav
The wav header is written at the end of the lav2wav program's run - and
that is done by "seeking". Can't seek on pipes so the wav header is
incorrect/corrupt.
Good Luck.
Cheers,
Steven Schultz
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