Sony walkman NWZ-82x and H264 again

Since I failed to setup later Avidemux 2.5.4 properly for H264 baseline-profile, I tried another program: "Arista Transcoder".

http://programmer-art.org/projects/arista-transcoder

It uses gstreamer engine to transcode your media files. Ubuntu provided version of arista (0.9.3+repack-0ubuntu5) contents a preset for Sony Walkman:
/usr/share/arista/presets/nwz-818.xml
which can be simply extended with any gstreamer based preset.
Lets say, I want to have 2-pass encoding with 400kbps bit-rate: Copy the device file nwz-818.xml for example to: nwz-82x.xml and extend it with this preset:

<preset>

<name>2passBaseline400kbps</name>

<container>ffmux_mp4</container>

<extension>mp4</extension>

<audio>

<name>faac</name>

<passes>

<pass>bitrate=128000 profile=LC</pass>

</passes>

<channels>1, 2</channels>

</audio>

<video>

<name>x264enc</name>

<passes>

<pass>pass=pass1 bitrate=400 me=umh subme=6 ref=3 cabac=false bframes=0 dct8x8=false trellis=1 threads=0</pass>

<pass>pass=pass2 bitrate=400 me=umh subme=6 ref=3 cabac=false bframes=0 dct8x8=false trellis=1 threads=0</pass>

</passes>

<width>320</width>

<height>1, 240</height>

<rate>1, 30</rate>

</video>

</preset>

All presets are enclosed in the <device>  </device> section. All device files should be placed in /usr/share/arista/presets/ directory.

Encoder options in the presets are GStreamer based so the alvailable options for encoder modules are printed by command:

gst-inspect x264enc

gst-inspect faac

Finally, the usage of Arista is quite simple, use given GUI (arista-gtk) or non-GUI command:



arista-transcode -d nwz-82x -p 2passBaseline400kbps video.avi video.mp4
or:
arista-transcode -d nwz-82x -p Normal video.avi video.mp4


EOF