[mythtv-users] nuvexport - "unable to open file.m1v for reading"

Mon Nov 29 17:39:50 UTC 2004

Hi,

I'm trying to transcode a few shows to VCD-quality mpeg using nuvexport.  However, I get the same error for every show I try to transcode (see below).  Running the command listed in the debugging info indicates a problem calling transcode (again, see below), but I have the latest version of transcode installed.

One strange thing is that it always tells me it's processing the same amount of frames, no matter which show I choose:  "processed:  0 of 108660 frames (0.00%), 0 fps" - doesn't matter if I'm transcoding a 5-min segment or a 3-hr show.

Transcoding to XviD works fine.  I haven't tried any other formats.  I'm using a version of nuvexport that I downloaded about 2 weeks ago.

Thanks for any help.

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$ nuvexport

<<snip>>

You have chosen to export 1 episode:

  1. Nova:
     Great Escape (11/16, 8:00 PM) 704x480 MPEG
     Allied prisoners of war escape from a Nazi prison camp by digging three
     tunnels.

* Separate multiple episodes with spaces

  c. Continue
  n. Choose another show
  q. Quit

Choose a function, or episode(s) to remove:  c
Where would you like to export the files to? [.]
Enable Myth cutlist? [Yes]
Enable noise reduction (slower, but better results)? [Yes]
Enable deinterlacing? [Yes]
Crop broadcast overscan (2% border)? [Yes]

Now encoding:  Nova:  Great Escape
Encode started:  Mon Nov 29 09:15:17 2004
Starting transcode.
processed:  0 of 108660 frames (0.00%), 0 fps
transcode finished.
   INFO: [mplex] mplex version 1.6.2 (2.2.3 $Date: 2004/01/13 20:45:26 $)
**ERROR: [mplex] Unable to open file ./Nova -Great Escape.m1v for reading.

Encode finished:  Mon Nov 29 09:15:22 2004
Encode lasted: 5s
$
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$ nuvexport --debug

<<snip>>

You have chosen to export 1 episode:

  1. Nova:
     Great Escape (11/16, 8:00 PM) 704x480 MPEG
     Allied prisoners of war escape from a Nazi prison camp by digging three
     tunnels.

* Separate multiple episodes with spaces

  c. Continue
  n. Choose another show
  q. Quit

Choose a function, or episode(s) to remove:  c
Where would you like to export the files to? [.]
Enable Myth cutlist? [Yes]
Enable noise reduction (slower, but better results)? [Yes]
Enable deinterlacing? [Yes]
Crop broadcast overscan (2% border)? [Yes]

Now encoding:  Nova:  Great Escape
Encode started:  Mon Nov 29 09:25:52 2004
Starting transcode.

forking:
nice -n 19 transcode -V -i /video/recordings/1010_20041116200000_20041116210000.nuv -x mpeg2 -j 10,14,10,14 -J smartyuv -J yuvdenoise=mode=2  -y mpeg2enc,mp2enc -Z 352x240 -F 1 -E 44100 -b 224 -o "./Nova -Great Escape" 2>&1

system call:
nice -n 19 mplex -f 1 "./Nova -Great Escape".m1v "./Nova -Great Escape".mpa -o "./Nova -Great Escape".mpg

Encode finished:  Mon Nov 29 09:25:52 2004
Encode lasted: 0s
$

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(here I tried taking the transcode command straight from the debugging output)

$ nice -n 19 transcode -V -i /video/recordings/1010_20041116200000_20041116210000.nuv -x mpeg2 -j 10,14,10,14 -J smartyuv -J yuvdenoise=mode=2  -y mpeg2enc,mp2enc -Z 352x240 -F 1 -E 44100 -b 224 -o "./Nova -Great Escape" 2>&1
*** WARNING: The option -V is deprecated. ***
*** Transcode internal frame handling is now in YV12 / YUV420 ***
*** format by default because most codecs can only handle this format, ***
*** otherwise leading to unnecessary time and quality wasting conversions. ***
*** If you want to have to "old" behaviour (RGB24 as internal format), ***
*** then please use the new -1/--use_rgb option ***
transcode v0.6.14 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg
[transcode] (probe) suggested AV correction -D 1 (33 ms) | AV 66 ms | 33 ms
[transcode] auto-probing source /video/recordings/1010_20041116200000_20041116210000.nuv (ok)
[transcode] V: import format    | MPEG-2  (V=mpeg2|A=vob)
[transcode] V: AV demux/sync    | (1) sync AV at initial MPEG sequence
[transcode] V: import frame     | 704x480  1.47:1  encoded @ 4:3
[transcode] V: clip frame (<-)  | 676x460
[transcode] V: zoom             | 352x240  1.46:1 (Lanczos3)
[transcode] V: bits/pixel       | 0.711
[transcode] V: decoding fps,frc | 29.970,4
[transcode] V: Y'CbCr           | YV12/I420
[transcode] A: import format    | 0x50    MPEG layer-2 [48000,16,2]  384 kbps
[transcode] A: export format    | 0x50    MPEG layer-2 [44100,16,2]  224 kbps
[transcode] V: encoding fps,frc | 29.970,4
[transcode] A: bytes per frame  | 6408 (6406.400000)
[transcode] A: adjustment       | -1600 at 1000
[transcode] V: IA32 accel mode  | sse2 (sse2 sse mmxext mmx asm C)
tc_memcpy: using mmxext for memcpy
[transcode] V: video buffer     | 10 @ 704x480
[import_vob.so] v0.6.0 (2003-10-02) (video) MPEG-2 | (audio) MPEG/AC3/PCM | (subtitle)
[import_mpeg2.so] v0.4.0 (2003-10-02) (video) MPEG2
[filter_smartyuv.so] (MMX) 0.1.4 (2003-10-13) Motion-adaptive deinterlacing
[filter_yuvdenoise.so] Using extended MMX SIMD optimisations.
[filter_yuvdenoise.so] v0.2.1 (2003-11-26) mjpegs YUV denoiser
[transcode] warning : /usr/lib/transcode/export_mp2enc.so: cannot open shared object file: No such file or directory
[transcode] warning : (dl_loader.c) loading "/usr/lib/transcode/export_mp2enc.so" failed
[transcode] warning : (encoder.c) loading audio export module failed
[transcode] warning : failed to init export modules
[transcode] critical: plug-in initialization failed
[mythtv at loon video]$

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$ transcode --version
transcode v0.6.14 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg

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