ffmpeg
- Description:
+ Description
Test case pipe based producer for video and audio.
- Constructor argument:
+ Constructor Argument
'file' - produce a/v from file
v4l - produce a/v from video4linux and dsp device
libdv
- Description:
+ Description
libdv based decoder for video and audio.
- Constructor argument:
+ Constructor Argument
'file' - produce a/v from file
string resource - file location
double fps - output frames per second
- double aspect_ratio - aspect ratio of video
+ double aspect_ratio - aspect ratio of video]
+ timecode length - duration of resource (in seconds)
Dependencies
mcdv
- Description:
+ Description
Mainconcept based dv decoder for video and audio.
- Constructor argument:
+ Constructor Argument
'file' - produce a/v from file
string resource - file location
double fps - output frames per second
double aspect_ratio - aspect ratio of video
+ timecode length - duration of resource (in seconds)
Dependencies
mainconcept dv sdk and libdv.
+ "dv_sdk" installed parallel to mlt.
Known Bugs
- Can be problematic with source NTSC DV files?
+ Can be problematic with source NTSC DV files? really? yes - try
+ playing pond.dv...
mcmpeg
- Description:
+ Description
Mainconcept based mpeg decoder for video and audio.
- Constructor argument:
+ Constructor Argument
'file' - produce a/v from file
Dependencies
mainconcept mpeg sdk.
+ "mpeg_sdk_demo" installed parallel to mlt.
Known Bugs
None.
pango
+
+ Description
+
+ A title generator that uses the Pango international text layout
+ and Freetype2 font renderer.
+
+ Constructor Argument
+
+ 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: <, >, & 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
+ int pad - the number of pixels to pad the background rectangle beyond edges of text
+ default 0
+ string markup - see constructor argument
+ string text - non-markup text (can contain markup chars un-encoded)
+ string font - the default typeface to use when not using markup
+ default "Sans 48"
+ int x - the horizontal position of the title on the frame
+ default 0
+ int y - the vertical position of the title on the frame
+ default 0
+ double mix - the overall opacity control of the generated title
+ default 1.0
+
+ Read Only Properties
+
+ string resource - the text/markup file or "pango" if no file
+
+ Dependencies
+
+ libpango-1.0, libpangoft2-1.0, libfreetype, libgdk_pixbuf-2.0, libglib-2.0,
+ libgobject-2.0, libgmodule-2.0, libfontconfig
+
+ Known Bugs
+
+ no frame-alignment functionality
+
pixbuf
+
+ Description
+
+ A graphics overlay generator using gdk-pixbuf
+
+ Constructor Argument
+
+ 'file' - The name of a graphics file loadable by
+ a gdk-pixbuf loader. see /usr/lib/gdk-pixbuf/loaders
+ definitely png, jpeg, tiff, pnm, and xpm
+ - If "%" in filename, the filename is used with sprintf
+ generate a filename from a counter for multi-file/flipbook animation.
+ The file sequence ends when numeric discontinuity >100.
+ - If filename contains "/.all.", suffix with an extension to load
+ all pictures with matching extension from a directory
+
+ 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
+ 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
+
+ string resource - file location
+
+ Dependencies
+
+ libgdk_pixbuf-2.0, libglib-2.0, libgobject-2.0, libgmodule-2.0
+
+ Known Bugs
+
+ in/out settings are incorrectly handled.
+
ppm
+ Description
+ Constructor Argument
+ Initialisation Properties
+ Read Only Properties
+ Dependencies
+ Known Bugs
Filters
-------
deinterlace
+
+ Description
+ Constructor Argument
+ Initialisation Properties
+ Read Only Properties
+ Dependencies
+ Known Bugs
+
ffmpeg_dub
+
+ Description
+ Constructor Argument
+ Initialisation Properties
+ Read Only Properties
+ Dependencies
+ Known Bugs
+
gamma
+
+ Description
+ Constructor Argument
+ Initialisation Properties
+ Read Only Properties
+ Dependencies
+ Known Bugs
+
greyscale
+
+ Description
+ Constructor Argument
+ Initialisation Properties
+ Read Only Properties
+ Dependencies
+ Known Bugs
+
resize
+
+ Description
+ Constructor Argument
+ Initialisation Properties
+ Read Only Properties
+ Dependencies
+ Known Bugs
Transitions
-----------
composite
+
+ Description
+
+ An alpha-channel based compositor for two frames.
+
+ Constructor Argument
+
+ 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
+
+ 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
+
+ string video_standard - "PAL" (default) or "NTSC"
+
+ Initialisation Properties
+
+ int video_standard - 0 = PAL, 1 = NTSC
+
+ 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
+
+ Description
+ Constructor Argument
+ Initialisation Properties
+ Read Only Properties
+ Dependencies
+ Known Bugs
+
sdl
+ Description
+
+ Simple DirectMedia Layer audio and video output module.
+
+ Constructor Argument
+
+ 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