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Add mvsp mlt module.

Signed-off-by: Dan Dennedy <dan@dennedy.org>
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commit 97bdd568301d386c96de4390a864ff952a808595 1 parent c438fbc
@ddennedy ddennedy authored
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2  .gitignore
@@ -4,3 +4,5 @@
config.mak
config.h
.depend
+*~
+
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38 docs/melted++.txt
@@ -0,0 +1,38 @@
+Servers and Westley Docs
+------------------------
+
+ One of the key features of MLT is its server capabilities. This feature
+ allows you to pass westley documents seamlessly from one process to
+ another and even to different computers on your network.
+
+ The miracle playout server is one such example of an application which
+ uses this functionality - you can build your own servers into your own
+ processes with ease.
+
+ A server process would be running as follows:
+
+ #include <mlt++/Miracle>
+ using namespace Mlt;
+
+ int main( void )
+ {
+ Miracle miracle( "miracle", 5250 );
+ miracle.start( );
+ miracle.execute( "uadd sdl" );
+ miracle.execute( "play u0" );
+ miracle.wait_for_shutdown( );
+ return 0;
+ }
+
+ Typically, when you have an MLT object such as a producer or a playlist,
+ you can send a westley representation of this to a running server with:
+
+ Conumser valerie( "valerie", "localhost:5250" );
+ valerie.connect( producer );
+ valerie.start( );
+
+ The effect of the push will be to append the producer on to the first
+ unit (u0).
+
+ You can completely customise the miracle server - an example of this
+ is shown below.
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34 src/modules/mvsp/Makefile
@@ -0,0 +1,34 @@
+include ../../../config.mak
+
+TARGET = ../libmltmvsp$(LIBSUF)
+
+OBJS = factory.o \
+ consumer_mvsp.o
+
+CFLAGS += -I../..
+
+LDFLAGS += -L../../mvsp -lmvsp
+LDFLAGS += -L../../framework -lmlt
+
+SRCS := $(OBJS:.o=.c)
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+ $(CC) $(SHFLAGS) -o $@ $(OBJS) $(LDFLAGS)
+
+depend: $(SRCS)
+ $(CC) -MM $(CFLAGS) $^ 1>.depend
+
+distclean: clean
+ rm -f .depend
+
+clean:
+ rm -f $(OBJS) $(TARGET)
+
+install: all
+ install -m 755 $(TARGET) "$(DESTDIR)$(libdir)/mlt"
+
+ifneq ($(wildcard .depend),)
+include .depend
+endif
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7 src/modules/mvsp/configure
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if [ "$help" != "1" ]
+then
+ echo "- pending move to melted: disabling"
+ touch ../disable-mvsp
+fi
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174 src/modules/mvsp/consumer_mvsp.c
@@ -0,0 +1,174 @@
+/*
+ * consumer_valerie.c -- pushes a service via valerie
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@telenet.be>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <valerie/valerie.h>
+#include <valerie/valerie_remote.h>
+#include <framework/mlt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <unistd.h>
+
+static int consumer_is_stopped( mlt_consumer this );
+static int consumer_start( mlt_consumer this );
+
+/** This is what will be called by the factory
+*/
+
+mlt_consumer consumer_valerie_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
+{
+ // Create the consumer object
+ mlt_consumer this = calloc( sizeof( struct mlt_consumer_s ), 1 );
+
+ // If no malloc'd and consumer init ok
+ if ( this != NULL && mlt_consumer_init( this, NULL, profile ) == 0 )
+ {
+ if ( arg != NULL && strchr( arg, ':' ) )
+ {
+ char *temp = NULL;
+ int port = atoi( strchr( arg, ':' ) + 1 );
+ mlt_properties_set( MLT_CONSUMER_PROPERTIES( this ), "server", arg );
+ temp = mlt_properties_get( MLT_CONSUMER_PROPERTIES( this ), "server" );
+ *( strchr( temp, ':' ) ) = '\0';
+ mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( this ), "port", port );
+ }
+ else
+ {
+ mlt_properties_set( MLT_CONSUMER_PROPERTIES( this ), "server", arg == NULL ? "localhost" : arg );
+ mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( this ), "port", 5250 );
+ }
+
+ mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( this ), "unit", 0 );
+ mlt_properties_set( MLT_CONSUMER_PROPERTIES( this ), "command", "append" );
+
+ // Allow thread to be started/stopped
+ this->start = consumer_start;
+ this->is_stopped = consumer_is_stopped;
+
+ // Return the consumer produced
+ return this;
+ }
+
+ // malloc or consumer init failed
+ free( this );
+
+ // Indicate failure
+ return NULL;
+}
+
+static int consumer_start( mlt_consumer this )
+{
+ // Get the producer service
+ mlt_service service = mlt_service_producer( MLT_CONSUMER_SERVICE( this ) );
+
+ // Get the properties object
+ mlt_properties properties = MLT_CONSUMER_PROPERTIES( this );
+
+ // Get all the properties now
+ char *server = mlt_properties_get( properties, "server" );
+ int port = mlt_properties_get_int( properties, "port" );
+ char *cmd = mlt_properties_get( properties, "command" );
+ int unit = mlt_properties_get_int( properties, "unit" );
+ char *title = mlt_properties_get( properties, "title" );
+ char command[ 2048 ];
+
+ // If this is a reuse, then a valerie object will exist
+ valerie connection = mlt_properties_get_data( properties, "connection", NULL );
+
+ // Special case - we can get a doc too...
+ char *doc = mlt_properties_get( properties, "westley" );
+
+ // Set the title if provided
+ if ( service != NULL )
+ {
+ if ( title != NULL )
+ mlt_properties_set( MLT_SERVICE_PROPERTIES( service ), "title", title );
+ else if ( mlt_properties_get( MLT_SERVICE_PROPERTIES( service ), "title" ) == NULL )
+ mlt_properties_set( MLT_SERVICE_PROPERTIES( service ), "title", "Anonymous Submission" );
+ title = mlt_properties_get( MLT_SERVICE_PROPERTIES( service ), "title" );
+ }
+
+ strcpy( command, cmd == NULL ? "" : cmd );
+ if ( strstr( command, "title=" ) == NULL && title != NULL )
+ {
+ strcat( command, " title=\"" );
+ strcat( command, title );
+ strcat( command, "\"" );
+ }
+
+ if ( service != NULL || doc != NULL )
+ {
+ // Initiate the connection if required
+ if ( connection == NULL )
+ {
+ valerie_parser parser = valerie_parser_init_remote( server, port );
+ connection = valerie_init( parser );
+ if ( valerie_connect( connection ) == valerie_ok )
+ {
+ mlt_properties_set_data( properties, "connection", connection, 0, ( mlt_destructor )valerie_close, NULL );
+ mlt_properties_set_data( properties, "parser", parser, 0, ( mlt_destructor )valerie_parser_close, NULL );
+ }
+ else
+ {
+ fprintf( stderr, "Unable to connect to the server at %s:%d\n", server, port );
+ mlt_properties_set_int( properties, "_error", 1 );
+ valerie_close( connection );
+ valerie_parser_close( parser );
+ connection = NULL;
+ }
+ }
+
+ // If we have connection, push the service over
+ if ( connection != NULL )
+ {
+ if ( doc == NULL )
+ {
+ int error;
+
+ // Push the service
+ error = valerie_unit_push( connection, unit, command, service );
+
+ // Report error
+ if ( error != valerie_ok )
+ fprintf( stderr, "Push failed on %s:%d %s u%d (%d)\n", server, port, command, unit, error );
+ }
+ else
+ {
+ // Push the service
+ int error = valerie_unit_receive( connection, unit, command, doc );
+
+ // Report error
+ if ( error != valerie_ok )
+ fprintf( stderr, "Send failed on %s:%d %s u%d (%d)\n", server, port, command, unit, error );
+ }
+ }
+ }
+
+ mlt_consumer_stop( this );
+ mlt_consumer_stopped( this );
+
+ return 0;
+}
+
+static int consumer_is_stopped( mlt_consumer this )
+{
+ return 1;
+}
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29 src/modules/mvsp/factory.c
@@ -0,0 +1,29 @@
+/*
+ * factory.c -- the factory method interfaces
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <string.h>
+#include <framework/mlt.h>
+
+extern mlt_consumer consumer_valerie_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg );
+
+MLT_REPOSITORY
+{
+ MLT_REGISTER( consumer_type, "valerie", consumer_valerie_init );
+}
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