X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_consumer.c;h=0b1eee551dc94be4a77095fe07758fb43c537fcb;hb=2af8bb9f6a61f6510aab8f45abf5f26e9e619c78;hp=635ad651c8e5636cdebc0e6008932f442c7b7c0a;hpb=661165812e3410fe2f6f49d7af882b36a0efcf82;p=melted diff --git a/src/framework/mlt_consumer.c b/src/framework/mlt_consumer.c index 635ad65..0b1eee5 100644 --- a/src/framework/mlt_consumer.c +++ b/src/framework/mlt_consumer.c @@ -20,6 +20,9 @@ #include "config.h" #include "mlt_consumer.h" +#include "mlt_factory.h" +#include "mlt_producer.h" +#include "mlt_frame.h" #include #include #include @@ -29,9 +32,41 @@ int mlt_consumer_init( mlt_consumer this, void *child ) { + int error = 0; memset( this, 0, sizeof( struct mlt_consumer_s ) ); this->child = child; - return mlt_service_init( &this->parent, this ); + error = mlt_service_init( &this->parent, this ); + if ( error == 0 ) + { + // Get the properties from the service + mlt_properties properties = mlt_service_properties( &this->parent ); + + // Get the normalisation preference + char *normalisation = mlt_environment( "MLT_NORMALISATION" ); + + // Deal with normalisation + if ( normalisation == NULL || strcmp( normalisation, "NTSC" ) ) + { + mlt_properties_set( properties, "normalisation", "PAL" ); + mlt_properties_set_double( properties, "fps", 25.0 ); + mlt_properties_set_int( properties, "width", 720 ); + mlt_properties_set_int( properties, "height", 576 ); + mlt_properties_set_int( properties, "progressive", 0 ); + } + else + { + mlt_properties_set( properties, "normalisation", "NTSC" ); + mlt_properties_set_double( properties, "fps", 30000.0 / 1001.0 ); + mlt_properties_set_int( properties, "width", 720 ); + mlt_properties_set_int( properties, "height", 480 ); + mlt_properties_set_int( properties, "progressive", 0 ); + } + mlt_properties_set_double( properties, "aspect_ratio", 4.0 / 3.0 ); + + // Default rescaler for all consumers + mlt_properties_set( properties, "rescale", "bilinear" ); + } + return error; } /** Get the parent service object. @@ -42,6 +77,14 @@ mlt_service mlt_consumer_service( mlt_consumer this ) return &this->parent; } +/** Get the consumer properties. +*/ + +mlt_properties mlt_consumer_properties( mlt_consumer this ) +{ + return mlt_service_properties( &this->parent ); +} + /** Connect the consumer to the producer. */ @@ -50,13 +93,136 @@ int mlt_consumer_connect( mlt_consumer this, mlt_service producer ) return mlt_service_connect_producer( &this->parent, producer, 0 ); } +/** Start the consumer. +*/ + +int mlt_consumer_start( mlt_consumer this ) +{ + // Get the properies + mlt_properties properties = mlt_consumer_properties( this ); + + // Determine if there's a test card producer + char *test_card = mlt_properties_get( properties, "test_card" ); + + // Deal with it now. + if ( test_card != NULL ) + { + if ( mlt_properties_get_data( properties, "test_card_producer", NULL ) == NULL ) + { + // Create a test card producer + // TODO: do we want to use fezzik here? + mlt_producer producer = mlt_factory_producer( "fezzik", test_card ); + + // Do we have a producer + if ( producer != NULL ) + { + // Test card should loop I guess... + mlt_properties_set( mlt_producer_properties( producer ), "eof", "loop" ); + + // Set the test card on the consumer + mlt_properties_set_data( properties, "test_card_producer", producer, 0, ( mlt_destructor )mlt_producer_close, NULL ); + } + + // Check and run an ante command + if ( mlt_properties_get( properties, "ante" ) ) + system( mlt_properties_get( properties, "ante" ) ); + } + } + + // Start the service + if ( this->start != NULL ) + return this->start( this ); + + return 0; +} + +/** Protected method :-/ for consumer to get frames from connected service +*/ + +mlt_frame mlt_consumer_get_frame( mlt_consumer this ) +{ + // Frame to return + mlt_frame frame = NULL; + + // Get the service assoicated to the consumer + mlt_service service = mlt_consumer_service( this ); + + // Get the frame + if ( mlt_service_get_frame( service, &frame, 0 ) == 0 ) + { + // Get the consumer properties + mlt_properties properties = mlt_consumer_properties( this ); + + // Get the frame properties + mlt_properties frame_properties = mlt_frame_properties( frame ); + + // Attach the test frame producer to it. + mlt_producer test_card = mlt_properties_get_data( properties, "test_card_producer", NULL ); + mlt_properties_set_data( frame_properties, "test_card_producer", test_card, 0, NULL, NULL ); + + // Attach the rescale property + if ( mlt_properties_get( properties, "rescale" ) != NULL ) + mlt_properties_set( frame_properties, "rescale.interp", mlt_properties_get( properties, "rescale" ) ); + + // Aspect ratio and other jiggery pokery + mlt_properties_set_double( frame_properties, "consumer_aspect_ratio", mlt_properties_get_double( properties, "aspect_ratio" ) ); + mlt_properties_set_int( frame_properties, "consumer_progressive", mlt_properties_get_int( properties, "progressive" ) ); + mlt_properties_set_int( frame_properties, "consumer_deinterlace", mlt_properties_get_int( properties, "deinterlace" ) ); + + } + + // Return the frame + return frame; +} + +/** Stop the consumer. +*/ + +int mlt_consumer_stop( mlt_consumer this ) +{ + // Get the properies + mlt_properties properties = mlt_consumer_properties( this ); + + // Stop the consumer + if ( this->stop != NULL ) + this->stop( this ); + + // Kill the test card + mlt_properties_set_data( properties, "test_card_producer", NULL, 0, NULL, NULL ); + + // Check and run a post command + if ( mlt_properties_get( properties, "post" ) ) + system( mlt_properties_get( properties, "post" ) ); + + return 0; +} + +/** Determine if the consumer is stopped. +*/ + +int mlt_consumer_is_stopped( mlt_consumer this ) +{ + // Check if the consumer is stopped + if ( this->is_stopped != NULL ) + return this->is_stopped( this ); + + return 0; +} + /** Close the consumer. */ void mlt_consumer_close( mlt_consumer this ) { - if ( this->close != NULL ) - this->close( this ); + // Get the childs close function + void ( *consumer_close )( ) = this->close; + + // Make sure it only gets called once + this->close = NULL; + + // Call the childs close if available + if ( consumer_close != NULL ) + consumer_close( this ); else mlt_service_close( &this->parent ); }