Dependencies
mainconcept dv sdk and libdv.
+ "dv_sdk" installed parallel to mlt.
Known Bugs
- Can be problematic with source NTSC DV files? really?
+ Can be problematic with source NTSC DV files? really? yes - try
+ playing pond.dv...
mcmpeg
Dependencies
mainconcept mpeg sdk.
+ "mpeg_sdk_demo" installed parallel to mlt.
Known Bugs
Constructor Argument
- 'markup' - a string containing Pango markup see:
+ string file - a text file containing Pango markup, see:
http://developer.gnome.org/doc/API/2.0/pango/PangoMarkupFormat.html
- - requires xml-like encoding special chars: <, > ( and '&' and '"' ?)
+ - requires xml-like encoding special chars: <, >, & to <, >, &
Initialisation Properties
timecode in - in point
timecode out - out point
+
+ Mutable Properties
+
int video_standard - enum mlt_video_standard from mlt_frame.h
PAL = 0, NTSC = 1
this determines proper pixel aspect ratio
+ 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: <, >, & to <, >, &
+
int fgcolor - an rgba color specification of the text (i.e. 0xrrggbbaa)
int bgcolor - an rgba color of the background rectangle
int align - paragraph alignment: 0 = left, 1 = center, 2 = right
Read Only Properties
- string resource - "pango"
+ string resource - the text/markup file or "pango" if no file
Dependencies
timecode in - in point
timecode out - out point
+
+ Mutable Properties
+
int video_standard - enum mlt_video_standard from mlt_frame.h
PAL = 0, NTSC = 1
this determines proper pixel aspect ratio
double ttl - how long (seconds) to repeat each picture in file sequences
+ int x - the horizontal offset from the left edge of the frame
+ int y - the vertical offset from the top edge of the frame
+ double mix - the opacity factor to apply to the second frame
+ (used in addition to alpha channel).
+
Read Only Properties
Known Bugs
- none
+ in/out settings are incorrectly handled.
ppm
Description
composite
Description
+
+ An alpha-channel based compositor for two frames.
+
Constructor Argument
- Initialisation Properties
+
+ none
+
+ Mutable Properties
+
+ int x - the horizontal offset from the left edge of the frame
+ int y - the vertical offset from the top edge of the frame
+ double mix - the opacity factor to apply to the second frame
+ (used in addition to alpha channel).
+
Read Only Properties
+
+ none
+
Dependencies
+
+ none
+
Known Bugs
+ Need to add field-based rendering.
+
luma
Description
+
+ A generic dissolve and wipe transition processor. It gets its name
+ from how it uses a grayscale "map" file. As the luma value varies
+ over time, a threshold filter is applied to the map to determine
+ what parts of frame A vs. frame B to show. It only reads PGM
+ files, but it does handle 16 bit PGM. This performs field-based
+ rendering.
+
Constructor Argument
- Initialisation Properties
+
+ string file - the luma map file name. If not supplied, a dissolve.
+
+ Mutable Properties
+
+ string filename - same as above
+ double softness - only when using a luma map, how soft to make the
+ edges between A and B. 0.0 = no softness. 1.0 =
+ too soft.
+
Read Only Properties
+
+ none
+
Dependencies
+
+ none
+
Known Bugs
+ The luma map must be the same size as the B frame.
+
Consumers
---------
bluefish
Description
+
+ BlueFish444 audio and video output module.
+
Constructor Argument
+
+ int video_standard - 0 = PAL, 1 = NTSC
+
Initialisation Properties
+
+ int video_standard - see above
+
Read Only Properties
+
+ none
+
Dependencies
+
+ BlueVelvet SDK installed parallel to mlt in "bluefish."
+
Known Bugs
+
+ If mlt crashes, you must reload the BlueDriver kernel module
+ due to unreleased DMA buffers.
+ Needs an argument or property for multi-card address.
ffmpeg
sdl
Description
+
+ Simple DirectMedia Layer audio and video output module.
+
Constructor Argument
- Initialisation Properties
+
+ string video_standard - "PAL" (default), "NTSC", or "WxH"
+
+ Mutable Properties
+
+ double volume - audio level factor
+ int video_off - if 1, disable video output
+ int audio_off - if 1, disable audio output
+ int scale_overlay - if 1, resample video from source pixel aspect
+ ratio to square pixels.
+
Read Only Properties
+
+ none
+
Dependencies
+
+ libSDL-1.2, libasound, libaudio, libXt, libX11, libXext, libSM, libICE
+
Known Bugs
+
+ NTSC handling needs tightening up - sdl:NTSC is the only valid
+ constructor for NTSC playback at the moment.
+
projects / melted / blobdiff