X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=docs%2Fservices.txt;h=b3877490d1cdf1da4eceb37b2f1ddda1141eba65;hb=2d71618ab696a31fabfbc2265b2ad0d5cc9171b2;hp=358182519674b430d02d01bdf1bc58352fe3534e;hpb=757e8d55530954c3002b71f78d5027a222e810f7;p=melted diff --git a/docs/services.txt b/docs/services.txt index 3581825..b387749 100644 --- a/docs/services.txt +++ b/docs/services.txt @@ -3,7 +3,7 @@ Service Documentation Copyright (C) 2004 Ushodaya Enterprises Limited Authors: Charles Yates Dan Dennedy -Last Revision: 2004-03-20 +Last Revision: 2004-11-07 SERVICES @@ -688,6 +688,53 @@ Filters 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 @@ -972,7 +1019,8 @@ Filters Description - Adjust an audio stream's volume level + Adjust an audio stream's volume level + - based on the 'normalize' utility Constructor Argument @@ -1078,19 +1126,10 @@ Transitions 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 @@ -1101,7 +1140,11 @@ Transitions 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. @@ -1120,6 +1163,19 @@ Transitions 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 @@ -1356,6 +1412,41 @@ Consumers 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 @@ -1377,10 +1468,10 @@ Consumers 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