X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fgtk2%2Fproducer_pango.c;h=601525d913927f77511af6969bc3bf17453fe8af;hb=09bb2ba73db2a3acad1288b30b6f996e6eb581e3;hp=b6f733cb79d83634af81f76302a2297d23124555;hpb=382bc6b99503a08abbfc9b32331e1cd35fd0205e;p=melted diff --git a/src/modules/gtk2/producer_pango.c b/src/modules/gtk2/producer_pango.c index b6f733c..601525d 100644 --- a/src/modules/gtk2/producer_pango.c +++ b/src/modules/gtk2/producer_pango.c @@ -20,12 +20,16 @@ #include "producer_pango.h" #include +#include #include #include #include #include #include #include +#include + +static pthread_mutex_t pango_mutex = PTHREAD_MUTEX_INITIALIZER; struct producer_pango_s { @@ -88,6 +92,8 @@ static int alignment_parse( char* align ) return ret; } +static PangoFT2FontMap *fontmap = NULL; + mlt_producer producer_pango_init( const char *filename ) { producer_pango this = calloc( sizeof( struct producer_pango_s ), 1 ); @@ -95,12 +101,15 @@ mlt_producer producer_pango_init( const char *filename ) { mlt_producer producer = &this->parent; + pthread_mutex_lock( &pango_mutex ); + if ( fontmap == NULL ) + fontmap = (PangoFT2FontMap*) pango_ft2_font_map_new(); + g_type_init(); + pthread_mutex_unlock( &pango_mutex ); + producer->get_frame = producer_get_frame; producer->close = ( mlt_destructor )producer_close; - // This is required to initialise gdk-pixbuf - g_type_init(); - // Get the properties interface mlt_properties properties = MLT_PRODUCER_PROPERTIES( &this->parent ); @@ -131,6 +140,29 @@ mlt_producer producer_pango_init( const char *filename ) mlt_properties_set( properties, "markup", markup ); free( copy ); } + else if ( strstr( filename, ".mpl" ) ) + { + int i = 0; + mlt_properties contents = mlt_properties_load( filename ); + mlt_geometry key_frames = mlt_geometry_init( ); + struct mlt_geometry_item_s item; + mlt_properties_set_data( properties, "contents", contents, 0, ( mlt_destructor )mlt_properties_close, NULL ); + mlt_properties_set_data( properties, "key_frames", key_frames, 0, ( mlt_destructor )mlt_geometry_close, NULL ); + + // Make sure we have at least one entry + if ( mlt_properties_get( contents, "0" ) == NULL ) + mlt_properties_set( contents, "0", "" ); + + for ( i = 0; i < mlt_properties_count( contents ); i ++ ) + { + char *name = mlt_properties_get_name( contents, i ); + char *value = mlt_properties_get_value( contents, i ); + while ( value != NULL && strchr( value, '~' ) ) + ( *strchr( value, '~' ) ) = '\n'; + item.frame = atoi( name ); + mlt_geometry_insert( key_frames, &item ); + } + } else { FILE *f = fopen( filename, "r" ); @@ -295,9 +327,22 @@ static void refresh_image( mlt_frame frame, int width, int height ) char *encoding = mlt_properties_get( producer_props, "encoding" ); int weight = mlt_properties_get_int( producer_props, "weight" ); int size = mlt_properties_get_int( producer_props, "size" ); + int property_changed = ( align != this->align ); + + // Check for file support + int position = mlt_properties_get_position( properties, "pango_position" ); + mlt_properties contents = mlt_properties_get_data( producer_props, "contents", NULL ); + mlt_geometry key_frames = mlt_properties_get_data( producer_props, "key_frames", NULL ); + struct mlt_geometry_item_s item; + if ( contents != NULL ) + { + char temp[ 20 ]; + mlt_geometry_prev_key( key_frames, &item, position ); + sprintf( temp, "%d", item.frame ); + markup = mlt_properties_get( contents, temp ); + } // See if any properties changed - int property_changed = ( align != this->align ); property_changed = property_changed || ( this->fgcolor == NULL || ( fg && strcmp( fg, this->fgcolor ) ) ); property_changed = property_changed || ( this->bgcolor == NULL || ( bg && strcmp( bg, this->bgcolor ) ) ); property_changed = property_changed || ( pad != this->pad ); @@ -419,43 +464,60 @@ static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_form // Obtain properties of frame mlt_properties properties = MLT_FRAME_PROPERTIES( frame ); + // We need to know the size of the image to clone it + int image_size = 0; + int alpha_size = 0; + + // Alpha channel + uint8_t *alpha = NULL; + *width = mlt_properties_get_int( properties, "rescale_width" ); *height = mlt_properties_get_int( properties, "rescale_height" ); // Refresh the image + pthread_mutex_lock( &pango_mutex ); refresh_image( frame, *width, *height ); - // Determine format - //mlt_producer this = mlt_properties_get_data( properties, "producer_pango", NULL ); - //*format = ( mlt_properties_get_int( MLT_PRODUCER_PROPERTIES( this ), "bpp" ) == 4 ) ? mlt_image_rgb24a : mlt_image_rgb24; - - // May need to know the size of the image to clone it - int size = 0; - // Get the image - uint8_t *image = mlt_properties_get_data( properties, "image", &size ); + *buffer = mlt_properties_get_data( properties, "image", &image_size ); + alpha = mlt_properties_get_data( properties, "alpha", &alpha_size ); // Get width and height *width = mlt_properties_get_int( properties, "width" ); *height = mlt_properties_get_int( properties, "height" ); - // Clone if necessary - if ( writable ) + // Always clone here to allow 'animated' text + if ( *buffer != NULL ) { - // Clone our image - uint8_t *copy = mlt_pool_alloc( size ); - if ( copy != NULL && image != NULL ) - memcpy( copy, image, size ); + // Clone the image and the alpha + uint8_t *image_copy = mlt_pool_alloc( image_size ); + uint8_t *alpha_copy = mlt_pool_alloc( alpha_size ); - // We're going to pass the copy on - image = copy; + memcpy( image_copy, *buffer, image_size ); + + // Copy or default the alpha + if ( alpha != NULL ) + memcpy( alpha_copy, alpha, alpha_size ); + else + memset( alpha_copy, 255, alpha_size ); // Now update properties so we free the copy after - mlt_properties_set_data( properties, "image", copy, size, ( mlt_destructor )mlt_pool_release, NULL ); + mlt_properties_set_data( properties, "image", image_copy, image_size, mlt_pool_release, NULL ); + mlt_properties_set_data( properties, "alpha", alpha_copy, alpha_size, mlt_pool_release, NULL ); + + // We're going to pass the copy on + *buffer = image_copy; + } + else + { + // TODO: Review all cases of invalid images + *buffer = mlt_pool_alloc( 50 * 50 * 2 ); + mlt_properties_set_data( properties, "image", *buffer, image_size, mlt_pool_release, NULL ); + *width = 50; + *height = 50; } - // Pass on the image - *buffer = image; + pthread_mutex_unlock( &pango_mutex ); return 0; } @@ -482,8 +544,14 @@ static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int i // Set the producer on the frame properties mlt_properties_set_data( properties, "producer_pango", this, 0, NULL, NULL ); + // Update timecode on the frame we're creating + mlt_frame_set_position( *frame, mlt_producer_position( producer ) ); + mlt_properties_set_position( properties, "pango_position", mlt_producer_frame( producer ) ); + // Refresh the pango image + pthread_mutex_lock( &pango_mutex ); refresh_image( *frame, 0, 0 ); + pthread_mutex_unlock( &pango_mutex ); // Set producer-specific frame properties mlt_properties_set_int( properties, "progressive", 1 ); @@ -495,9 +563,6 @@ static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int i // Stack the get image callback mlt_frame_push_get_image( *frame, producer_get_image ); - // Update timecode on the frame we're creating - mlt_frame_set_position( *frame, mlt_producer_position( producer ) ); - // Calculate the next timecode mlt_producer_prepare_next( producer ); @@ -538,13 +603,8 @@ static void pango_draw_background( GdkPixbuf *pixbuf, rgba_color bg ) } } -static PangoFT2FontMap *fontmap = NULL; - static GdkPixbuf *pango_get_pixbuf( const char *markup, const char *text, const char *font, rgba_color fg, rgba_color bg, int pad, int align, int weight, int size ) { - if ( fontmap == NULL ) - fontmap = (PangoFT2FontMap*) pango_ft2_font_map_new(); - PangoContext *context = pango_ft2_font_map_create_context( fontmap ); PangoLayout *layout = pango_layout_new( context ); int w, h, x;