]> git.sesse.net Git - mlt/blobdiff - src/modules/core/transition_luma.c
+ Added an option to override alignment and transparent borders for compositing
[mlt] / src / modules / core / transition_luma.c
index 66cd4258222386d59981a1e87ea249b7ddbea42c..e55046cf26826fb595ef36ba097f437a96a87e53 100644 (file)
@@ -37,8 +37,8 @@ static float position_calculate( mlt_transition this, mlt_frame frame )
        mlt_position out = mlt_transition_get_out( this );
 
        // Get the position of the frame
-       char *name = mlt_properties_get( mlt_transition_properties( this ), "_unique_id" );
-       mlt_position position = mlt_properties_get_position( mlt_frame_properties( frame ), name );
+       char *name = mlt_properties_get( MLT_TRANSITION_PROPERTIES( this ), "_unique_id" );
+       mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( frame ), name );
 
        // Now do the calcs
        return ( float )( position - in ) / ( float )( out - in + 1 );
@@ -69,22 +69,35 @@ static inline int dissolve_yuv( mlt_frame this, mlt_frame that, float weight, in
        int width_src = width, height_src = height;
        mlt_image_format format = mlt_image_yuv422;
        uint8_t *p_src, *p_dest;
-       uint8_t *p;
+       uint8_t *p, *q;
        uint8_t *limit;
+       uint8_t *alpha_src;
+       uint8_t *alpha_dst;
 
        int32_t weigh = weight * ( 1 << 16 );
        int32_t weigh_complement = ( 1 - weight ) * ( 1 << 16 );
 
+       if ( mlt_properties_get( &this->parent, "distort" ) )
+               mlt_properties_set( &that->parent, "distort", mlt_properties_get( &this->parent, "distort" ) );
+       mlt_properties_set_int( &that->parent, "consumer_deinterlace", mlt_properties_get_int( &this->parent, "consumer_deinterlace" ) );
        mlt_frame_get_image( this, &p_dest, &format, &width, &height, 1 );
+       alpha_dst = mlt_frame_get_alpha_mask( this );
        mlt_frame_get_image( that, &p_src, &format, &width_src, &height_src, 0 );
+       alpha_src = mlt_frame_get_alpha_mask( that );
 
+       // Pick the lesser of two evils ;-)
+       width_src = width_src > width ? width : width_src;
+       height_src = height_src > height ? height : height_src;
+       
        p = p_dest;
+       q = alpha_dst;
        limit = p_dest + height_src * width_src * 2;
 
        while ( p < limit )
        {
                *p_dest++ = ( *p_src++ * weigh + *p++ * weigh_complement ) >> 16;
                *p_dest++ = ( *p_src++ * weigh + *p++ * weigh_complement ) >> 16;
+               *alpha_dst++ = ( *alpha_src++ * weigh + *q++ * weigh_complement ) >> 16;
        }
 
        return ret;
@@ -92,7 +105,7 @@ static inline int dissolve_yuv( mlt_frame this, mlt_frame that, float weight, in
 
 // image processing functions
 
-static inline uint32_t smoothstep( int32_t edge1, int32_t edge2, uint32_t a )
+static inline int32_t smoothstep( int32_t edge1, int32_t edge2, uint32_t a )
 {
        if ( a < edge1 )
                return 0;
@@ -125,9 +138,16 @@ static void luma_composite( mlt_frame a_frame, mlt_frame b_frame, int luma_width
        format_src = mlt_image_yuv422;
        format_dest = mlt_image_yuv422;
 
+       if ( mlt_properties_get( &a_frame->parent, "distort" ) )
+               mlt_properties_set( &b_frame->parent, "distort", mlt_properties_get( &a_frame->parent, "distort" ) );
+       mlt_properties_set_int( &b_frame->parent, "consumer_deinterlace", mlt_properties_get_int( &a_frame->parent, "consumer_deinterlace" ) );
        mlt_frame_get_image( a_frame, &p_dest, &format_dest, &width_dest, &height_dest, 1 );
        mlt_frame_get_image( b_frame, &p_src, &format_src, &width_src, &height_src, 0 );
 
+       // Pick the lesser of two evils ;-)
+       width_src = width_src > width_dest ? width_dest : width_src;
+       height_src = height_src > height_dest ? height_dest : height_src;
+       
        stride_src = width_src * 2;
        stride_dest = width_dest * 2;
 
@@ -152,10 +172,9 @@ static void luma_composite( mlt_frame a_frame, mlt_frame b_frame, int luma_width
 
        int32_t i_softness = softness * ( 1 << 16 );
 
-       int field_count = field_order <= 0 ? 1 : 2;
+       int field_count = field_order < 0 ? 1 : 2;
        int field_stride_src = field_count * stride_src;
        int field_stride_dest = field_count * stride_dest;
-
        int field = 0;
 
        // composite using luma map
@@ -163,7 +182,7 @@ static void luma_composite( mlt_frame a_frame, mlt_frame b_frame, int luma_width
        {
                p_row = p_src + field * stride_src;
                q_row = p_dest + field * stride_dest;
-               y_offset = ( field * luma_width ) << 16;
+               y_offset = field << 16;
                i = field;
 
                while ( i < height_src )
@@ -312,6 +331,7 @@ static void luma_read_pgm( FILE *f, uint16_t **map, int *width, int *height )
 static void luma_read_yuv422( uint8_t *image, uint16_t **map, int width, int height )
 {
        int i;
+       int size = width * height * 2;
        
        // allocate the luma bitmap
        uint16_t *p = *map = ( uint16_t* )mlt_pool_alloc( width * height * sizeof( uint16_t ) );
@@ -319,7 +339,7 @@ static void luma_read_yuv422( uint8_t *image, uint16_t **map, int width, int hei
                return;
 
        // proces the image data into the luma bitmap
-       for ( i = 0; i < width * height * 2; i += 2 )
+       for ( i = 0; i < size; i += 2 )
                *p++ = ( image[ i ] - 16 ) * 299; // 299 = 65535 / 219
 }
 
@@ -334,20 +354,20 @@ static void luma_read_rgb24( uint8_t *image, uint16_t **map, int width, int heig
 
 static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
 {
+       // Get the b frame from the stack
+       mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
+
        // Get the transition object
        mlt_transition transition = mlt_frame_pop_service( a_frame );
 
        // Get the properties of the transition
-       mlt_properties properties = mlt_transition_properties( transition );
+       mlt_properties properties = MLT_TRANSITION_PROPERTIES( transition );
 
        // Get the properties of the a frame
-       mlt_properties a_props = mlt_frame_properties( a_frame );
-
-       // Get the b frame from the stack
-       mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
+       mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
 
        // Get the properties of the b frame
-       mlt_properties b_props = mlt_frame_properties( b_frame );
+       mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
 
        // The cached luma map information
        int luma_width = mlt_properties_get_int( properties, "width" );
@@ -357,9 +377,30 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
        // If the filename property changed, reload the map
        char *resource = mlt_properties_get( properties, "resource" );
 
+       // Correct width/height if not specified
+       if ( luma_width == 0 || luma_height == 0 )
+       {
+               luma_width = mlt_properties_get_int( a_props, "width" );
+               luma_height = mlt_properties_get_int( a_props, "height" );
+       }
+               
        if ( luma_bitmap == NULL && resource != NULL )
        {
-               char *extension = extension = strrchr( resource, '.' );
+               char temp[ 512 ];
+               char *extension = strrchr( resource, '.' );
+
+               if ( strchr( resource, '%' ) )
+               {
+                       FILE *test;
+                       sprintf( temp, "%s/lumas/%s/%s", mlt_factory_prefix( ), mlt_environment( "MLT_NORMALISATION" ), strchr( resource, '%' ) + 1 );
+                       test = fopen( temp, "r" );
+                       if ( test == NULL )
+                               strcat( temp, ".png" );
+                       else
+                               fclose( test ); 
+                       resource = temp;
+                       extension = strrchr( resource, '.' );
+               }
 
                // See if it is a PGM
                if ( extension != NULL && strcmp( extension, ".pgm" ) == 0 )
@@ -390,7 +431,7 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
                        if ( producer != NULL )
                        {
                                // Get the producer properties
-                               mlt_properties producer_properties = mlt_producer_properties( producer );
+                               mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
 
                                // Ensure that we loop
                                mlt_properties_set( producer_properties, "eof", "loop" );
@@ -402,17 +443,13 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
                                mlt_frame luma_frame = NULL;
 
                                // Get the luma frame
-                               if ( mlt_service_get_frame( mlt_producer_service( producer ), &luma_frame, 0 ) == 0 )
+                               if ( mlt_service_get_frame( MLT_PRODUCER_SERVICE( producer ), &luma_frame, 0 ) == 0 )
                                {
-                                       uint8_t *luma_image;
+                                       uint8_t *luma_image = NULL;
                                        mlt_image_format luma_format = mlt_image_yuv422;
 
-                                       // Request a luma image the size of transition image request
-                                       luma_width = *width;
-                                       luma_height = *height;
-
                                        // Get image from the luma producer
-                                       mlt_properties_set( mlt_frame_properties( luma_frame ), "distort", "true" );
+                                       mlt_properties_set( MLT_FRAME_PROPERTIES( luma_frame ), "rescale.interp", "nearest" );
                                        mlt_frame_get_image( luma_frame, &luma_image, &luma_format, &luma_width, &luma_height, 0 );
 
                                        // Generate the luma map
@@ -442,39 +479,51 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
        float frame_delta = delta_calculate( transition, a_frame );
        
        float luma_softness = mlt_properties_get_double( properties, "softness" );
-       int progressive = mlt_properties_get_int( b_props, "progressive" ) ||
-                       mlt_properties_get_int( a_props, "consumer_progressive" ) ||
+       int progressive = 
+                       mlt_properties_get_int( a_props, "consumer_deinterlace" ) ||
+                       mlt_properties_get_int( properties, "progressive" ) ||
                        mlt_properties_get_int( b_props, "luma.progressive" );
        int top_field_first =  mlt_properties_get_int( b_props, "top_field_first" );
        int reverse = mlt_properties_get_int( properties, "reverse" );
+       int invert = mlt_properties_get_int( properties, "invert" );
+
+       if ( mlt_properties_get( a_props, "rescale.interp" ) == NULL || !strcmp( mlt_properties_get( a_props, "rescale.interp" ), "none" ) )
+               mlt_properties_set( a_props, "rescale.interp", "nearest" );
 
        // Since we are the consumer of the b_frame, we must pass along this
        // consumer property from the a_frame
+       if ( mlt_properties_get_double( a_props, "aspect_ratio" ) == 0.0 )
+               mlt_properties_set_double( a_props, "aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
+       if ( mlt_properties_get_double( b_props, "aspect_ratio" ) == 0.0 )
+               mlt_properties_set_double( b_props, "aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
        mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
-       mlt_properties_set_double( b_props, "consumer_scale", mlt_properties_get_double( a_props, "consumer_scale" ) );
 
        // Honour the reverse here
        if ( mix >= 1.0 )
                mix -= floor( mix );
 
-       mix = reverse ? 1 - mix : mix;
-       frame_delta *= reverse ? -1.0 : 1.0;
+       mix = reverse || invert ? 1 - mix : mix;
+       frame_delta *= reverse || invert ? -1.0 : 1.0;
 
        // Ensure we get scaling on the b_frame
-       mlt_properties_set( b_props, "rescale.interp", "nearest" );
+       if ( mlt_properties_get( b_props, "rescale.interp" ) == NULL || !strcmp( mlt_properties_get( b_props, "rescale.interp" ), "none" ) )
+               mlt_properties_set( b_props, "rescale.interp", "nearest" );
+
+       if ( mlt_properties_get( properties, "fixed" ) )
+               mix = mlt_properties_get_double( properties, "fixed" );
 
        if ( luma_width > 0 && luma_height > 0 && luma_bitmap != NULL )
                // Composite the frames using a luma map
-               luma_composite( a_frame, b_frame, luma_width, luma_height, luma_bitmap, mix, frame_delta,
+               luma_composite( !invert ? a_frame : b_frame, !invert ? b_frame : a_frame, luma_width, luma_height, luma_bitmap, mix, frame_delta,
                        luma_softness, progressive ? -1 : top_field_first, width, height );
        else
                // Dissolve the frames using the time offset for mix value
                dissolve_yuv( a_frame, b_frame, mix, *width, *height );
 
        // Extract the a_frame image info
-       *width = mlt_properties_get_int( a_props, "width" );
-       *height = mlt_properties_get_int( a_props, "height" );
-       *image = mlt_properties_get_data( a_props, "image", NULL );
+       *width = mlt_properties_get_int( !invert ? a_props : b_props, "width" );
+       *height = mlt_properties_get_int( !invert ? a_props : b_props, "height" );
+       *image = mlt_properties_get_data( !invert ? a_props : b_props, "image", NULL );
 
        return 0;
 }
@@ -486,20 +535,20 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
 static mlt_frame transition_process( mlt_transition transition, mlt_frame a_frame, mlt_frame b_frame )
 {
        // Get a unique name to store the frame position
-       char *name = mlt_properties_get( mlt_transition_properties( transition ), "_unique_id" );
+       char *name = mlt_properties_get( MLT_TRANSITION_PROPERTIES( transition ), "_unique_id" );
 
        // Assign the current position to the name
-       mlt_properties_set_position( mlt_frame_properties( a_frame ), name, mlt_frame_get_position( a_frame ) );
+       mlt_properties_set_position( MLT_FRAME_PROPERTIES( a_frame ), name, mlt_frame_get_position( a_frame ) );
 
        // Push the transition on to the frame
        mlt_frame_push_service( a_frame, transition );
 
-       // Push the transition method
-       mlt_frame_push_get_image( a_frame, transition_get_image );
-       
        // Push the b_frame on to the stack
        mlt_frame_push_frame( a_frame, b_frame );
 
+       // Push the transition method
+       mlt_frame_push_get_image( a_frame, transition_get_image );
+       
        return a_frame;
 }
 
@@ -515,11 +564,14 @@ mlt_transition transition_luma_init( char *lumafile )
                transition->process = transition_process;
                
                // Default factory
-               mlt_properties_set( mlt_transition_properties( transition ), "factory", "fezzik" );
+               mlt_properties_set( MLT_TRANSITION_PROPERTIES( transition ), "factory", "fezzik" );
 
                // Set the main property
-               mlt_properties_set( mlt_transition_properties( transition ), "resource", lumafile );
+               mlt_properties_set( MLT_TRANSITION_PROPERTIES( transition ), "resource", lumafile );
                
+               // Inform apps and framework that this is a video only transition
+               mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( transition ), "_transition_type", 1 );
+
                return transition;
        }
        return NULL;