Copyright (C) 2004 Ushodaya Enterprises Limited
Authors: Charles Yates <charles.yates@pandora.be>
Dan Dennedy <dan@dennedy.org>
-Last Revision: 2004-03-20
+Last Revision: 2004-11-07
SERVICES
none
- ffmpeg (DEPRECATED)
-
- Description
-
- Test case pipe based producer for video and audio.
-
- Constructor Argument
-
- 'file' - produce a/v from file
- v4l - produce a/v from video4linux and dsp device
-
- Initialisation Properties
-
- string video_type - "file" or "v4l"
- string video_file - file or v4l device
- string video_size - WxH of video to produce (default: "")
- int video_loop - loop video until audio exhausted (default: 0)
- string audio_type - "file" or "dsp"
- string audio_file - file or dsp device
- int audio_rate - audio frequency (default: 48000)
- int audio_channels - audio channels (default: 2)
- int audio_track - audio track to use (default: 0)
- int audio_loop - loop audio until video exhausted (default: 0)
- int in - in point
- int out - out point
- double fps - output frames per second (default: 25)
- double aspect_ratio - aspect ratio of video
-
- Read Only Properties
-
- string resource - file or "v4l"
- int end_of_clip - holds 1 when input is exhausted
-
- Dependencies
-
- ffmpeg executable.
-
- Known Bugs
-
- in point setting is broken.
-
- Implementation does not allow fast random access.
-
libdv
Description
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.
+ int weight - the weight of the font (default is 400)
Read Only Properties
none
+ jackrack
+
+ Description
+
+ Creates Jack ports and runs a JackRack project to process audio
+ through a stack of LADSPA filters.
+
+ Constructor Argument
+
+ src - a JackRack file
+
+ Details
+
+ If you are using a consumer that uses ALSA, then you should start
+ jacks with the dummy driver: jackd -d dummy.
+ I also recommend using a period size of 2048: -p 2048.
+
+ jackd -ddummy -r48000 -p2048
+
+ Initialisation Properties
+
+ int in - in point
+ int out - out point
+
+ The following can be used without a rack file in order to connect
+ filter_jackrack to a running instance of JackRack:
+ string out_1 - Jack port to connect MLT's output port (JackRack's input)
+ string out_2 - Jack port to connect MLT's output port (JackRack's input)
+ string in_1 - Jack port to connect MLT's input port (JackRack's output)
+ string in_2 - Jack port to connect MLT's input port (JackRack's output)
+
+ Read Only Properties
+
+ none
+
+ Mutable Properties
+
+ none
+
+ Dependencies
+
+ Jack, LADSPA, glib-2.0, libxml2
+
+ Known Bugs
+
+ no encapsulated resampling and jack runs at a fixed frequency
+
luma
Description
Description
- Adjust an audio stream's volume level
+ Adjust an audio stream's volume level
+ - based on the 'normalize' utility
Constructor Argument
Constructor Argument
- string start - a geometry specification as X,Y:WxH[!][:mix]
- - X, Y, W, H are assumed to pixel units unless they
- have the suffix '%'
- - '!' is a shortcut to specify distort, see below.
- - mix is always a 2 digit percentage, defaults to 100.
- - default is "85%,5%:10%x10%"
+ none[*]
Initialisation Properties
- string end - the ending size and position.
- string key[F] - X,Y:WxH[:mix] - set a key frame for geometry between
- the in and out. F is a frame number and can be
- negative to make it relative to the out point.
int in - in point
int out - out point
string factory - The name of a factory service used as a non-PGM
none
Mutable Properties
-
+
+
+ string geometry - key frame specification
+ - this is a ; delimited form of the deprecated start,
+ key[n], end properties
int progressive - set to 1 to disable field-based rendering.
string distort - when set, causes the B frame image to fill the WxH
completely with no regard to B's aspect ratio.
Any property starting with "luma." is passed to the non-PGM luma
producer.
+ Deprecated Properties
+
+ string start - a geometry specification as X,Y:WxH[!][:mix]
+ - X, Y, W, H are assumed to pixel units unless they
+ have the suffix '%'
+ - '!' is a shortcut to specify distort, see below.
+ - mix is always a 2 digit percentage, defaults to 100.
+ - default is "85%,5%:10%x10%"
+ string end - the ending size and position.
+ string key[F] - X,Y:WxH[:mix] - set a key frame for geometry between
+ the in and out. F is a frame number and can be
+ negative to make it relative to the out point.
+
Dependencies
none
none
+ mcmpeg
+
+ Description
+
+ Mainconcept MPEG encoder.
+
+ Constructor Argument
+
+ string target - the filename to write to.
+
+ Initialisation Properties
+
+ int buffer - the number of frames to buffer, minimum 1, default 25.
+ string rescale - a rescale method, see the Filters/rescale.
+ string format - vcd [default], svcd or dvd provide base settings
+ int motion_search_type - 0 to 16 - reduces quality/cpu usage
+ int gop - group of picture size (default: format dependent)
+
+ Mutable Properties
+
+ int progressive - indicates whether to use progressive or field-
+ based rendering, default 0 (off).
+
+ Read Only Properties
+
+ none
+
+ Dependencies
+
+ Mainconcept MPEG SDK
+
+ Known Bugs
+
+ none
+
sdl
Description
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.
+ int resize - TODO
int progressive - indicates whether to use progressive or field-
based rendering, default 0 (off).
+ int audio_buffer - size of the sdl audio buffer (default: 1024)
Read Only Properties
projects / mlt / blobdiff