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Date:      Fri, 4 Nov 2005 16:53:22 -0800 (PST)
From:      Arne "Wörner" <arne_woerner@yahoo.com>
To:        Dieter <freebsd@sopwith.solgatos.com>
Cc:        freebsd-multimedia@freebsd.org
Subject:   Re: trying to convert mpeg2 to dv 
Message-ID:  <20051105005322.12633.qmail@web30304.mail.mud.yahoo.com>
In-Reply-To: <200511042231.WAA29425@sopwith.solgatos.com>

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--- Dieter <freebsd@sopwith.solgatos.com> wrote:

> > > mencoder looks more promising:
> > > [...]
> > > I don't know what this frameno.avi file is supposed to be?
> > >
> > I dont know either...
> 
> Do you get the
> 
> 	File not found: 'frameno.avi'
> 	Failed to open frameno.avi
> 
> complaint from mencoder?
>
Yes. See:
MEncoder 1.0pre6-3.4.2 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred (Family: 6,
Stepping: 1)
Detected cache-line size is 64 bytes
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled with runtime CPU detection - WARNING - this is not
optimal!
To get best performance, recompile MPlayer with
--disable-runtime-cpudetection.
File not found: 'frameno.avi'
Failed to open frameno.avi
Reading disc structure, please wait...
There are 10 titles on this DVD.
There are 1 chapters in this DVD title.
There are 1 angles in this DVD title.
DVD successfully opened.
success: format: 0  data: 0x0 - 0x303800
MPEG-PS file format detected.
VIDEO:  MPEG2  720x576  (aspect 3)  25.000 fps  9600.0 kbps
(1200.0 kbyte/s)
[V] filefmt:2  fourcc:0x10000002  size:720x576  fps:25.00 
ftime:=0.0400
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 2.0 (stereo)  48000 Hz  448.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 56000->192000 (448.0
kbit)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1  (-1=autodetect) osd: 1
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred csp: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
VDecoder init failed :(
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder
libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG 1 or 2
(libmpeg2))
==========================================================================
MP3 audio selected
Building audio filter chain for 48000Hz/2ch/16bit ->
48000Hz/2ch/16bit...
Writing AVI header...
ODML: Aspect information not (yet?) available or unspecified, not
writing vprp header.
VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 5 -> 4

SwScaler: BICUBIC scaler, from Planar YV12 to Packed YUY2 using
MMX2
New_Face failed. Maybe the font path is wrong.  0mb  A-V:0.004
[0:0]
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
ODML: vprp aspect is 16:9.

1 duplicate frame(s)!
Pos:   0.8s     22f ( 5%)   0fps Trem:   0min  50mb  A-V:0.084
[0:75]
Skipping frame!
Pos:   1.3s     34f ( 8%)  26fps Trem:   0min  51mb  A-V:0.083
[27900:98]
Skipping frame!
Pos:   4.9s    126f (64%)  24fps Trem:   0min  26mb  A-V:0.064
[28565:183]
Flushing video frames

Writing AVI index...
Fixing AVI header...
ODML: vprp aspect is 16:9.

Video stream: 28565.854 kbit/s  (3570731 bps)  size: 17568000
bytes  4.920 secs  126 frames

Audio stream:  183.751 kbit/s  (22968 bps)  size: 124032 bytes 
5.400 secs

> > I just executed
> > % mencoder -endpos 5 -oac mp3lame -ovc libdv -o /tmp/f+ck.dv
> > dvd://1
> > and
> > % mencoder -endpos 5 -oac mp3lame -ovc libdv -o /tmp/f_ck.dv
> > /tmp/f+ck.dv
> > successfully...
> 
> What kind of machine is this on?  x86?  I'm on amd64, I wonder
> if libdv isn't LP64 clean?
>
See above...

I do not know libdv... But I saw mencoder and mplayer crashing
abnormaling quite often already...

> > Maybe your source file is evil or from a parallel world, where
> > DV format is somehow evil (taken from Futurama/Farnsworth's
> > Parabox)?
> 
> I'm not familiar with Futurama/Farnsworth's Parabox.
>
Hmm... That is an episode of the TV series Futurama...

> I tried several source files.  Most seg fault core dump, a
> couple did bus error core dump instead.  They are from
> over-the-air digital TV, various networks.  Mplayer will
> play them with default X11 output, but my X terminal isn't
> fast enough, (and audio would be nice) so I'm trying to
> convert them to DV so I can use my camcorder as a
> firewire-to-TV adapter.
> 
Interesting project...

Really looks like libdv does not work on your box so good...

Maybe it helps to compile libdv on your box by
% cd /usr/ports/multimedia/libdv
% make deinstall
% make clean
% make install
(but I am just guessing... I do not have so much experiences with
libdv, camcorders, AMD64, ...)

At least the kernel compiled on my big AMD i386 box (I686_CPU)
does not work on my old Intel i386 box (I586_CPU) (if I recall it
correctly)...

-Arne



		
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