[mythtv-users] Problems with myth2ipod - nuvexport and MP4Box (and, apparently, ffmpeg)

Dan Brown dan at familybrown.org
Mon Sep 10 15:03:27 UTC 2007

Hash: SHA1

Brad DerManouelian wrote:

> I ended up hacking up myth2ipod to execute the same commands as  
> worked from the command line and left it as that.

Well, the time that it worked, I was using it interactively.  I tried
running the logged nuvexport command line, and ffmpeg failed.
Re-running nuvexport in debug mode, it spit out this command line for

/usr/bin/nice -n19 ffmpeg -y -f s16le -ar 48000 -ac 2 -i
/tmp/fifodir_23372/audout -f rawvideo -pix_fmt yuv420p -s 720x480
- -aspect 1.33333333333333 -r 29.970 -i /tmp/fifodir_23372/vidout -aspect
1.33333333333333 -r 23.97 -croptop    6 -cropright 10 -cropbottom 6
- -cropleft  10 -s 320x240  -vcodec h264 -b '384k' -title 'Doctor Who -
The Family of Blood' -level 30 -loop 1 -g 250 -keyint_min 25
- -sc_threshold 40 -rc_eq 'blurCplx^(1-qComp)' -bt '384k' -maxrate '768k'
- -bufsize '244k' -i_qfactor '0.71428572' -b_qfactor '0.76923078' -bf '0'
- -refs 2 -subq 7 -partitions parti4x4+parti8x8+partp4x4+partp8x8+partb8x8
- -flags2 +bpyramid+wpred+mixed_refs+8x8dct+brdo -me_range 21 -trellis 2
- -chroma 1 -slice 2 -cmp 1 -deblockalpha 0 -deblockbeta 0 -acodec aac -ar
48000 -async 1 -ab '64k'
'/storage/ipodfeed/1036_20070907195900.temp.mp4' 2>&1

...which returned this output:

FFmpeg version SVN-r10469, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --prefix=/usr --enable-gpl --enable-pp
- --enable-pthreads --enable-liba52 --enable-libfaac --enable-libfaad
- --enable-libgsm --enable-libmp3lame --enable-libogg --enable-libtheora
- --enable-libvorbis --enable-libx264 --enable-libxvid --enable-shared
- --disable-debug --enable-libdc1394
  libavutil version: 49.5.0
  libavcodec version: 51.43.0
  libavformat version: 51.12.2
  built on Sep 10 2007 10:49:35, gcc: 4.1.2 (Ubuntu 4.1.2-0ubuntu4)
Input #0, s16le, from '/tmp/fifodir_23372/audout':
  Duration: N/A, bitrate: N/A
  Stream #0.0: Audio: pcm_s16le, 48000 Hz, stereo, 1536 kb/s
Input #1, rawvideo, from '/tmp/fifodir_23372/vidout':
  Duration: N/A, bitrate: N/A
  Stream #1.0: Video: rawvideo, yuv420p, 720x480, 29.97 fps(r)
Unknown encoder 'h264'

When I run ffmpeg -formats, the output includes (I only grepped for 264):

 DE h264            raw H264 video format
 D V DT h264
  EV    libx264

Not sure if I'm making progress here or not...

- --
Dan Brown, KE6MKS, dan at familybrown.org
"Since all the world is but a story, it were well for thee to buy the
more enduring story rather than the story that is less enduring."
 -- The Judgment of St. Colum Cille
Version: GnuPG v1.2.1 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org


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