X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_tractor.c;h=9a1f32e11b092a5107281350f27c2200f9ebe439;hb=833934cc90094c909078f709532e6fe6f8f13b60;hp=91438680064e1d3147851decbb625ca7516bdd66;hpb=4db14da139d0cce1807d5f3530b271238786b795;p=melted diff --git a/src/framework/mlt_tractor.c b/src/framework/mlt_tractor.c index 9143868..9a1f32e 100644 --- a/src/framework/mlt_tractor.c +++ b/src/framework/mlt_tractor.c @@ -23,25 +23,17 @@ #include "mlt_tractor.h" #include "mlt_frame.h" #include "mlt_multitrack.h" +#include "mlt_field.h" #include #include #include -/** Private structure. -*/ - -struct mlt_tractor_s -{ - struct mlt_producer_s parent; - mlt_service producer; -}; - /** Forward references to static methods. */ static int producer_get_frame( mlt_producer this, mlt_frame_ptr frame, int track ); -static void producer_close( mlt_producer this ); +static void mlt_tractor_listener( mlt_multitrack tracks, mlt_tractor this ); /** Constructor for the tractor. */ @@ -54,12 +46,54 @@ mlt_tractor mlt_tractor_init( ) mlt_producer producer = &this->parent; if ( mlt_producer_init( producer, this ) == 0 ) { - mlt_properties_set( mlt_producer_properties( producer ), "resource", "" ); - mlt_properties_set( mlt_producer_properties( producer ), "mlt_type", "mlt_producer" ); - mlt_properties_set( mlt_producer_properties( producer ), "mlt_service", "tractor" ); + mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer ); + + mlt_properties_set( properties, "resource", "" ); + mlt_properties_set( properties, "mlt_type", "mlt_producer" ); + mlt_properties_set( properties, "mlt_service", "tractor" ); + mlt_properties_set_int( properties, "in", 0 ); + mlt_properties_set_int( properties, "out", -1 ); + mlt_properties_set_int( properties, "length", 0 ); + + producer->get_frame = producer_get_frame; + producer->close = ( mlt_destructor )mlt_tractor_close; + producer->close_object = this; + } + else + { + free( this ); + this = NULL; + } + } + return this; +} + +mlt_tractor mlt_tractor_new( ) +{ + mlt_tractor this = calloc( sizeof( struct mlt_tractor_s ), 1 ); + if ( this != NULL ) + { + mlt_producer producer = &this->parent; + if ( mlt_producer_init( producer, this ) == 0 ) + { + mlt_multitrack multitrack = mlt_multitrack_init( ); + mlt_field field = mlt_field_new( multitrack, this ); + mlt_properties props = MLT_PRODUCER_PROPERTIES( producer ); + + mlt_properties_set( props, "resource", "" ); + mlt_properties_set( props, "mlt_type", "mlt_producer" ); + mlt_properties_set( props, "mlt_service", "tractor" ); + mlt_properties_set_position( props, "in", 0 ); + mlt_properties_set_position( props, "out", 0 ); + mlt_properties_set_position( props, "length", 0 ); + mlt_properties_set_data( props, "multitrack", multitrack, 0, ( mlt_destructor )mlt_multitrack_close, NULL ); + mlt_properties_set_data( props, "field", field, 0, ( mlt_destructor )mlt_field_close, NULL ); + + mlt_events_listen( MLT_MULTITRACK_PROPERTIES( multitrack ), this, "producer-changed", ( mlt_listener )mlt_tractor_listener ); producer->get_frame = producer_get_frame; - producer->close = producer_close; + producer->close = ( mlt_destructor )mlt_tractor_close; + producer->close_object = this; } else { @@ -75,7 +109,7 @@ mlt_tractor mlt_tractor_init( ) mlt_service mlt_tractor_service( mlt_tractor this ) { - return mlt_producer_service( &this->parent ); + return MLT_PRODUCER_SERVICE( &this->parent ); } /** Get the producer object associated to the tractor. @@ -91,7 +125,46 @@ mlt_producer mlt_tractor_producer( mlt_tractor this ) mlt_properties mlt_tractor_properties( mlt_tractor this ) { - return mlt_producer_properties( &this->parent ); + return MLT_PRODUCER_PROPERTIES( &this->parent ); +} + +/** Get the field this tractor is harvesting. +*/ + +mlt_field mlt_tractor_field( mlt_tractor this ) +{ + return mlt_properties_get_data( MLT_TRACTOR_PROPERTIES( this ), "field", NULL ); +} + +/** Get the multitrack this tractor is pulling. +*/ + +mlt_multitrack mlt_tractor_multitrack( mlt_tractor this ) +{ + return mlt_properties_get_data( MLT_TRACTOR_PROPERTIES( this ), "multitrack", NULL ); +} + +/** Ensure the tractors in/out points match the multitrack. +*/ + +void mlt_tractor_refresh( mlt_tractor this ) +{ + mlt_multitrack multitrack = mlt_tractor_multitrack( this ); + mlt_properties properties = MLT_MULTITRACK_PROPERTIES( multitrack ); + mlt_properties self = MLT_TRACTOR_PROPERTIES( this ); + mlt_events_block( properties, self ); + mlt_events_block( self, self ); + mlt_multitrack_refresh( multitrack ); + mlt_properties_set_position( self, "in", 0 ); + mlt_properties_set_position( self, "out", mlt_properties_get_position( properties, "out" ) ); + mlt_events_unblock( self, self ); + mlt_events_unblock( properties, self ); + mlt_properties_set_position( self, "length", mlt_properties_get_position( properties, "length" ) ); +} + +static void mlt_tractor_listener( mlt_multitrack tracks, mlt_tractor this ) +{ + mlt_tractor_refresh( this ); } /** Connect the tractor. @@ -99,7 +172,7 @@ mlt_properties mlt_tractor_properties( mlt_tractor this ) int mlt_tractor_connect( mlt_tractor this, mlt_service producer ) { - int ret = mlt_service_connect_producer( mlt_tractor_service( this ), producer, 0 ); + int ret = mlt_service_connect_producer( MLT_TRACTOR_SERVICE( this ), producer, 0 ); // This is the producer we're going to connect to if ( ret == 0 ) @@ -108,23 +181,53 @@ int mlt_tractor_connect( mlt_tractor this, mlt_service producer ) return ret; } +/** Set the producer for a specific track. +*/ + +int mlt_tractor_set_track( mlt_tractor this, mlt_producer producer, int index ) +{ + return mlt_multitrack_connect( mlt_tractor_multitrack( this ), producer, index ); +} + +/** Get the producer for a specific track. +*/ + +mlt_producer mlt_tractor_get_track( mlt_tractor this, int index ) +{ + return mlt_multitrack_track( mlt_tractor_multitrack( this ), index ); +} + static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable ) { - mlt_properties properties = mlt_frame_properties( this ); + uint8_t *data = NULL; + mlt_properties properties = MLT_FRAME_PROPERTIES( this ); mlt_frame frame = mlt_frame_pop_service( this ); - mlt_properties_inherit( mlt_frame_properties( frame ), properties ); + mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame ); + mlt_properties_set_int( frame_properties, "width", mlt_properties_get_int( properties, "width" ) ); + mlt_properties_set_int( frame_properties, "height", mlt_properties_get_int( properties, "height" ) ); + mlt_properties_set( frame_properties, "rescale.interp", mlt_properties_get( properties, "rescale.interp" ) ); + mlt_properties_set_int( frame_properties, "distort", mlt_properties_get_int( properties, "distort" ) ); + mlt_properties_set_double( frame_properties, "consumer_aspect_ratio", mlt_properties_get_double( properties, "consumer_aspect_ratio" ) ); + mlt_properties_set_int( frame_properties, "consumer_deinterlace", mlt_properties_get_double( properties, "consumer_deinterlace" ) ); + mlt_properties_set( frame_properties, "deinterlace_method", mlt_properties_get( properties, "deinterlace_method" ) ); + mlt_properties_set_int( frame_properties, "normalised_width", mlt_properties_get_double( properties, "normalised_width" ) ); + mlt_properties_set_int( frame_properties, "normalised_height", mlt_properties_get_double( properties, "normalised_height" ) ); mlt_frame_get_image( frame, buffer, format, width, height, writable ); mlt_properties_set_data( properties, "image", *buffer, *width * *height * 2, NULL, NULL ); mlt_properties_set_int( properties, "width", *width ); mlt_properties_set_int( properties, "height", *height ); + mlt_properties_set_double( properties, "aspect_ratio", mlt_frame_get_aspect_ratio( frame ) ); + mlt_properties_set_int( properties, "progressive", mlt_properties_get_int( frame_properties, "progressive" ) ); + mlt_properties_set_int( properties, "distort", mlt_properties_get_int( frame_properties, "distort" ) ); + data = mlt_frame_get_alpha_mask( frame ); + mlt_properties_set_data( properties, "alpha", data, 0, NULL, NULL ); return 0; } static int producer_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples ) { - mlt_properties properties = mlt_frame_properties( this ); + mlt_properties properties = MLT_FRAME_PROPERTIES( this ); mlt_frame frame = mlt_frame_pop_audio( this ); - mlt_properties_inherit( mlt_frame_properties( frame ), properties ); mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples ); mlt_properties_set_data( properties, "audio", *buffer, 0, NULL, NULL ); mlt_properties_set_int( properties, "frequency", *frequency ); @@ -132,6 +235,22 @@ static int producer_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_forma return 0; } +static void destroy_data_queue( void *arg ) +{ + if ( arg != NULL ) + { + // Assign the correct type + mlt_deque queue = arg; + + // Iterate through each item and destroy them + while ( mlt_deque_peek_front( queue ) != NULL ) + mlt_properties_close( mlt_deque_pop_back( queue ) ); + + // Close the deque + mlt_deque_close( queue ); + } +} + /** Get the next frame. */ @@ -148,7 +267,7 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int tra int count = 0; // Get the properties of the parent producer - mlt_properties properties = mlt_producer_properties( parent ); + mlt_properties properties = MLT_PRODUCER_PROPERTIES( parent ); // Try to obtain the multitrack associated to the tractor mlt_multitrack multitrack = mlt_properties_get_data( properties, "multitrack", NULL ); @@ -156,6 +275,12 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int tra // Or a specific producer mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL ); + // The output frame will hold the 'global' data feeds (ie: those which are targetted for the final frame) + mlt_deque data_queue = mlt_deque_init( ); + + // Determine whether this tractor feeds to the consumer or stops here + int global_feed = mlt_properties_get_int( properties, "global_feed" ); + // If we don't have one, we're in trouble... if ( multitrack != NULL ) { @@ -172,8 +297,11 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int tra mlt_frame audio = NULL; mlt_frame video = NULL; + // Temporary properties + mlt_properties temp_properties = NULL; + // Get the multitrack's producer - mlt_producer target = mlt_multitrack_producer( multitrack ); + mlt_producer target = MLT_MULTITRACK_PRODUCER( multitrack ); mlt_producer_seek( target, mlt_producer_frame( parent ) ); mlt_producer_set_speed( target, mlt_producer_get_speed( parent ) ); @@ -181,7 +309,7 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int tra *frame = mlt_frame_init( ); // Get the properties of the frame - frame_properties = mlt_frame_properties( *frame ); + frame_properties = MLT_FRAME_PROPERTIES( *frame ); // Loop through each of the tracks we're harvesting for ( i = 0; !done; i ++ ) @@ -189,17 +317,50 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int tra // Get a frame from the producer mlt_service_get_frame( this->producer, &temp, i ); + // Get the temporary properties + temp_properties = MLT_FRAME_PROPERTIES( temp ); + // Check for last track - done = mlt_properties_get_int( mlt_frame_properties( temp ), "last_track" ); + done = mlt_properties_get_int( temp_properties, "last_track" ); // We store all frames with a destructor on the output frame sprintf( label, "_%s_%d", id, count ++ ); mlt_properties_set_data( frame_properties, label, temp, 0, ( mlt_destructor )mlt_frame_close, NULL ); + // We want to append all 'final' feeds to the global queue + if ( !done && mlt_properties_get_data( temp_properties, "data_queue", NULL ) != NULL ) + { + // Move the contents of this queue on to the output frames data queue + mlt_deque sub_queue = mlt_properties_get_data( MLT_FRAME_PROPERTIES( temp ), "data_queue", NULL ); + mlt_deque temp = mlt_deque_init( ); + while ( global_feed && mlt_deque_count( sub_queue ) ) + { + mlt_properties p = mlt_deque_pop_back( sub_queue ); + if ( mlt_properties_get_int( p, "final" ) ) + mlt_deque_push_back( data_queue, p ); + else + mlt_deque_push_back( temp, p ); + } + while( mlt_deque_count( temp ) ) + mlt_deque_push_front( sub_queue, mlt_deque_pop_back( temp ) ); + mlt_deque_close( temp ); + } + + // Now do the same with the global queue but without the conditional behaviour + if ( mlt_properties_get_data( temp_properties, "global_queue", NULL ) != NULL ) + { + mlt_deque sub_queue = mlt_properties_get_data( MLT_FRAME_PROPERTIES( temp ), "global_queue", NULL ); + while ( mlt_deque_count( sub_queue ) ) + { + mlt_properties p = mlt_deque_pop_back( sub_queue ); + mlt_deque_push_back( data_queue, p ); + } + } + // Pick up first video and audio frames - if ( !done && !mlt_frame_is_test_audio( temp ) && !( mlt_properties_get_int( mlt_frame_properties( temp ), "hide" ) & 2 ) ) + if ( !done && !mlt_frame_is_test_audio( temp ) && !( mlt_properties_get_int( temp_properties, "hide" ) & 2 ) ) audio = temp; - if ( !done && !mlt_frame_is_test_card( temp ) && !( mlt_properties_get_int( mlt_frame_properties( temp ), "hide" ) & 1 ) ) + if ( !done && !mlt_frame_is_test_card( temp ) && !( mlt_properties_get_int( temp_properties, "hide" ) & 1 ) ) video = temp; } @@ -207,19 +368,33 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int tra if ( audio != NULL ) { mlt_frame_push_audio( *frame, audio ); - ( *frame )->get_audio = producer_get_audio; - mlt_properties_inherit( mlt_frame_properties( *frame ), mlt_frame_properties( audio ) ); + mlt_frame_push_audio( *frame, producer_get_audio ); } if ( video != NULL ) { + mlt_properties video_properties = MLT_FRAME_PROPERTIES( video ); mlt_frame_push_service( *frame, video ); mlt_frame_push_service( *frame, producer_get_image ); - mlt_properties_inherit( mlt_frame_properties( *frame ), mlt_frame_properties( video ) ); + if ( global_feed ) + mlt_properties_set_data( frame_properties, "data_queue", data_queue, 0, NULL, NULL ); + mlt_properties_set_data( video_properties, "global_queue", data_queue, 0, destroy_data_queue, NULL ); + mlt_properties_set_int( frame_properties, "width", mlt_properties_get_int( video_properties, "width" ) ); + mlt_properties_set_int( frame_properties, "height", mlt_properties_get_int( video_properties, "height" ) ); + mlt_properties_set_int( frame_properties, "real_width", mlt_properties_get_int( video_properties, "real_width" ) ); + mlt_properties_set_int( frame_properties, "real_height", mlt_properties_get_int( video_properties, "real_height" ) ); + mlt_properties_set_int( frame_properties, "progressive", mlt_properties_get_int( video_properties, "progressive" ) ); + mlt_properties_set_double( frame_properties, "aspect_ratio", mlt_properties_get_double( video_properties, "aspect_ratio" ) ); + } + else + { + destroy_data_queue( data_queue ); } - mlt_properties_set_int( mlt_frame_properties( *frame ), "test_audio", audio == NULL ); - mlt_properties_set_int( mlt_frame_properties( *frame ), "test_image", video == NULL ); + mlt_frame_set_position( *frame, mlt_producer_frame( parent ) ); + mlt_properties_set_int( MLT_FRAME_PROPERTIES( *frame ), "test_audio", audio == NULL ); + mlt_properties_set_int( MLT_FRAME_PROPERTIES( *frame ), "test_image", video == NULL ); + mlt_properties_set_data( MLT_FRAME_PROPERTIES( *frame ), "consumer_lock_service", this, 0, NULL, NULL ); } else if ( producer != NULL ) { @@ -252,16 +427,11 @@ static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int tra void mlt_tractor_close( mlt_tractor this ) { - this->parent.close = NULL; - mlt_producer_close( &this->parent ); - free( this ); -} - -/** Close the producer. -*/ - -static void producer_close( mlt_producer this ) -{ - mlt_tractor_close( this->child ); + if ( this != NULL && mlt_properties_dec_ref( MLT_TRACTOR_PROPERTIES( this ) ) <= 0 ) + { + this->parent.close = NULL; + mlt_producer_close( &this->parent ); + free( this ); + } }