[mythtv-users] Transcoding for a Nokia N95 (or Symbian)

[Xavier Hervy]

Ian Barton wrote:
>> I use Video center to download them to my phone using a rss feed per 
>> serie as well a a vcfg file to create a "channel" in video center. It 
>> does work very well. I can provide more infos if you need.
>
> Yes please!
>
> Ian.
>

I wrote a php file which generate the vcfg, this script  allow to add a 
channel in Video center, a channel is basicaly just a rss feed.
just copy the attached php file on your webserver (the same as mythweb 
so we can get the thumbnail from it) and open its address with your phone.
You will see more instructions in the php file itself.

I can not manage to produce valid transcoded video for my phone anymore 
,when I try to play them I get "Unable to play either sound or video 
clip, Trying to play partially" message. The video is working but I get 
now sound.
my ffmegg command is:
ffmpeg -y -i /home/mythtv/recordings/5011_20090103033000.mpg -s 320x240 
-r 15 -f mp4 -ac 2 -ar 24000 -ab 64000 -b 250000 
/var/www/n95/output/5011_20090103033000.mpg.mp4
FFmpeg version SVN-r15259, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-pthreads --enable-libvorbis 
--enable-liba52 --enable-libgsm --enable-libdc1394 --disable-debug 
--enable-libmp3lame --enable-libfaadbin --enable-libfaad 
--enable-libfaac --enable-libxvid --enable-libx264 --enable-libamr_nb 
--enable-libamr_wb --enable-shared --enable-nonfree
  libavutil     49.10. 0 / 49.10. 0
  libavcodec    51.71. 0 / 51.71. 0
  libavformat   52.22. 1 / 52.22. 1
  libavdevice   52. 1. 0 / 52. 1. 0
  built on Sep  8 2008 11:40:01, gcc: 4.1.3 20070929 (prerelease) 
(Ubuntu 4.1.2-16ubuntu2)
Input #0, mpegts, from '/home/mythtv/recordings/5011_20090103033000.mpg':
  Duration: 00:34:55.48, start: 7435.765722, bitrate: 4120 kb/s
  Program 1
    Stream #0.0[0x12d]: Video: mpeg2video, yuv420p, 720x576 [PAR 64:45 
DAR 16:9], 15000 kb/s, 25.00 tb(r)
    Stream #0.1[0x12e](eng): Audio: mp2, 48000 Hz, stereo, s16, 192 kb/s
    Stream #0.2[0x12f](eng): Subtitle: dvbsub
    Stream #0.3[0x130](eng): Audio: mp2, 48000 Hz, mono, s16, 64 kb/s
Output #0, mp4, to '/var/www/n95/output/5011_20090103033000.mpg.mp4':
    Stream #0.0: Video: mpeg4, yuv420p, 320x240 [PAR 4:3 DAR 16:9], 
q=2-31, 250 kb/s, 15.00 tb(c)
    Stream #0.1(eng): Audio: libfaac, 24000 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
Press [q] to stop encoding
[mpeg2video @ 0x80737f0]ac-tex damaged at 17 5=2092.63 bitrate= 
314.8kbits/s    
[mpeg2video @ 0x80737f0]Warning MVs not available
[mpeg2video @ 0x80737f0]concealing 1395 DC, 1395 AC, 1395 MV errors
frame=31433 fps=127 q=6.9 Lsize=   81132kB time=2094.63 bitrate= 
317.3kbits/s   
video:64131kB audio:16360kB global headers:0kB muxing overhead 0.795891%

I use to be able to transcode them fine for my previous N95. Does 
anybody have a short transcoded file I could try as well as the exact 
transcoding  parameter use for ffmpeg ?
In the meantime it would be nice if some could try one of my transcoding 
as well.

Regards,
Xavier


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