Video for web consumption
Sources
Best: DV
(or another "classic" lightly compressed format).
Second-best: MPEG-4 AVC or VP9
(or another "modern" strongly compressed format),
with compression settings lowered most possible.
Tolerated: almost any format -
if in doubt just accept as-is.
Worst: Tolerated format transcoded into a "better" one.
Fetching
Beware that a good source format is huge in size -
can literally take days to download over the Internet!
videohost
To fetch video from a videohost like Vimeo Youtube,
try each of these until it succeeds:
cclive 'http://example.com/the.url.single-quoted'
youtube-dl 'http://example.com/the.url.single-quoted'
get_flash_videos 'http://example.com/the.url.single-quoted'
Transcoding
Move the source file(s) to subdirectory src.
Use transcoding script localvideowebencode.
Test if encoding work at all:
localvideowebencode --compression dirty --sample src/the-source.dv
If image size is not too big, simply transcode with no options:
localvideowebencode src/the-source.dv
Smaller image size leads to faster download
and less ressources needed to play.
Best is to pick a size which is "modulus 16"
(see localvideowebencode --help) for details),
e,g vga or 480p:
localvideowebencode --size 480p src/the-source.dv
Some sources use sub-optimal refresh rate
(variable or very slow/fast).
Especially too fast rate is best to reduce to 20 or 30.
Here an example of setting both size and rate together:
localvideowebencode --profile 480p25 src/the-source.dv
More complex example:
localvideowebencode --video talkinghead --profile 480p25 --audio speech src/the-source.dv
Documentation:
localvideowebencode --help
Publishing
Push video files to media server,
e.g. media.biks.dk.
Reference thepublished files,
e.g. using a template in Ikiwiki.
