Constructor Argument
'file' - a filename specification or URL in the form:
- [{protocol}|{format}]:{resource}[?{format-parameter}[&{format-parameter}]]
- For example, video4linux:/dev/video1?width=320&height=240
- Note: on the bash command line, '&' must be escaped as '\&'
+ [{protocol}|{format}]:{resource}[?{format-parameter}[&{format-parameter}...]]
+ For example, video4linux:/dev/video1?width:320&height:240
+ Note: on the bash command line, & must be escaped as '\&'.
+ Also, note the use of ':' instead of '=' for parameters.
Use 'ffmpeg -formats' to see a list of supported protocols
and formats.
MPEG seeking is inaccurate - doesn't seek to i-frames so you may
get junk for a few frames.
RAW DV seeking not supported.
+ Fails to play beyond first frame of video of sources with PTS not
+ starting at 0 (video4linux).
fezzik
pango producer interprets the filename as pango text. This is a
shortcut to embed titles in inigo commands. For westley, it is
recommended that you embed the title text in the property value.
- If you need to embed Pango markup in a westley XML file, then
- enclose the value inside "<![CDATA[ ... ]]>".
Pango has builtin scaling. It will rescale the originally rendered
title to whatever the consumer requests. Therefore, it will lose
Mutable Properties
- string markup - a UTF-8 string containing Pango markup see:
+ string markup - a string containing Pango markup see:
http://developer.gnome.org/doc/API/2.0/pango/PangoMarkupFormat.html
- requires xml-like encoding special chars from:
<, >, & -to- <, >, &
markup chars un-encoded)
string font - the default typeface to use when not using markup.
default "Sans 48". FreeType2 renders at 72 dpi.
+ string encoding - the text encoding type of the input if not UTF-8.
+ - see 'iconv --list' for a list of possible inputs.
Read Only Properties
load all pictures with matching extension from a directory.
- If filename contains the string "<svg", then pixbuf tries
to load the filename as inline SVG XML, which is convenient
- for inigo commands. For westley XML, set the resource
- property value with inline XML embedded using a CDATA node
- ("<![CDATA[ ... ]]>").
+ for inigo commands.
Details
Known Bugs
Does not go completely to black or white.
+
+
+ channelcopy
+
+ Description
+
+ Copy audio from one channel to another channel.
+
+ Constructor Argument
+
+ to - the 0-indexed channel to copy into, default is 1.
+
+ Mutable Properties
+
+ int to - see above
+ int from - the channel from which to copy, default is 0.
+
+ Dependencies
+
+ none
+
+ Known Bugs
+
+ none
+
deinterlace
none
+ mirror
+
+ Description
+
+ Provides various mirror and image reversing effects.
+
+ Constructor Argument
+
+ mirror - horizontal, vertical, diagonal, flip, flop
+
+ Initialisation Properties
+
+ int reverse - being 0 or 1
+ int in - in point
+ int out - out point
+
+ Read Only Properties
+
+ none
+
+ Mutable Properties
+
+ none
+
+ Dependencies
+
+ none
+
+ Known Bugs
+
+ none
+
+
obscure
Description
Description
- Adjust an audio stream's sampling rate.
+ Adjust an audio stream's sampling rate, and duplicate channels if
+ producer provides less than consumer requested.
+
This filter is automatically invoked by Fezzik for the sake of
normalisation over inputs and with the consumer.
Known Bugs
- none
+ Assumes 2 channels during libsamplerate initialisation. Untested
+ with >2 channels.
rescale
Constructor Argument
- string video_standard - "PAL" (default) or "NTSC"
+ card - a numeric card id starting at 1, default is 1.
Initialisation Properties
- int video_standard - 0 = PAL, 1 = NTSC
+ string standard - "PAL" (default) or "NTSC"
+ - default is based upon MLT_NORMALISATION
+ environment variable, which defaults to PAL.
+ int frames - the number of DMA video frames. default is 8.
+ minimum is 2. maximum on my system is 11.
+ int buffer - the number of frames to buffer within MLT, minimum 1,
+ default 25.
+ string rescale - a rescale method, see the Filters/rescale.
Read Only Properties
Does not work with any service that uses pipes!
- If mlt crashes, you must reload the BlueDriver kernel module
- due to unreleased DMA buffers.
+ If mlt crashes, you might need to reload the BlueDriver kernel
+ module due to unreleased DMA buffers.
- Needs an argument or property for multi-card address.
+ Only supports 2 channel audio at the moment.
libdv
projects / melted / blobdiff