* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * 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 program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 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 "transition_affine.h"
+#include <framework/mlt_transition.h>
#include <framework/mlt.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
-typedef struct
+/** Calculate real geometry.
+*/
+
+static void geometry_calculate( mlt_transition this, const char *store, struct mlt_geometry_item_s *output, float position )
+{
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
+ mlt_geometry geometry = mlt_properties_get_data( properties, store, NULL );
+ int mirror_off = mlt_properties_get_int( properties, "mirror_off" );
+ int repeat_off = mlt_properties_get_int( properties, "repeat_off" );
+ int length = mlt_geometry_get_length( geometry );
+
+ // Allow wrapping
+ if ( !repeat_off && position >= length && length != 0 )
+ {
+ int section = position / length;
+ position -= section * length;
+ if ( !mirror_off && section % 2 == 1 )
+ position = length - position;
+ }
+
+ // Fetch the key for the position
+ mlt_geometry_fetch( geometry, output, position );
+}
+
+
+static mlt_geometry transition_parse_keys( mlt_transition this, const char *name, const char *store, int normalised_width, int normalised_height )
+{
+ // Get the properties of the transition
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
+
+ // Try to fetch it first
+ mlt_geometry geometry = mlt_properties_get_data( properties, store, NULL );
+
+ // Get the in and out position
+ mlt_position in = mlt_transition_get_in( this );
+ mlt_position out = mlt_transition_get_out( this );
+
+ // Determine length and obtain cycle
+ int length = out - in + 1;
+ double cycle = mlt_properties_get_double( properties, "cycle" );
+
+ // Allow a geometry repeat cycle
+ if ( cycle >= 1 )
+ length = cycle;
+ else if ( cycle > 0 )
+ length *= cycle;
+
+ if ( geometry == NULL )
+ {
+ // Get the new style geometry string
+ char *property = mlt_properties_get( properties, name );
+
+ // Create an empty geometries object
+ geometry = mlt_geometry_init( );
+
+ // Parse the geometry if we have one
+ mlt_geometry_parse( geometry, property, length, normalised_width, normalised_height );
+
+ // Store it
+ mlt_properties_set_data( properties, store, geometry, 0, ( mlt_destructor )mlt_geometry_close, NULL );
+ }
+ else
+ {
+ // Check for updates and refresh if necessary
+ mlt_geometry_refresh( geometry, mlt_properties_get( properties, name ), length, normalised_width, normalised_height );
+ }
+
+ return geometry;
+}
+
+static mlt_geometry composite_calculate( mlt_transition this, struct mlt_geometry_item_s *result, int nw, int nh, float position )
+{
+ // Structures for geometry
+ mlt_geometry start = transition_parse_keys( this, "geometry", "geometries", nw, nh );
+
+ // Do the calculation
+ geometry_calculate( this, "geometries", result, position );
+
+ return start;
+}
+
+static inline float composite_calculate_key( mlt_transition this, const char *name, const char *store, int norm, float position )
+{
+ // Struct for the result
+ struct mlt_geometry_item_s result;
+
+ // Structures for geometry
+ transition_parse_keys( this, name, store, norm, 0 );
+
+ // Do the calculation
+ geometry_calculate( this, store, &result, position );
+
+ return result.x;
+}
+
+typedef struct
{
float matrix[3][3];
}
}
// Rotate by a given angle
-static void affine_rotate( float this[3][3], float angle )
+static void affine_rotate_x( float this[3][3], float angle )
{
float affine[3][3];
affine[0][0] = cos( angle * M_PI / 180 );
affine_multiply( this, affine );
}
-static void affine_scale( float this[3][3], float sx, float sy )
+static void affine_rotate_y( float this[3][3], float angle )
{
float affine[3][3];
- affine[0][0] = sx;
+ affine[0][0] = cos( angle * M_PI / 180 );
affine[0][1] = 0;
- affine[0][2] = 0;
+ affine[0][2] = 0 - sin( angle * M_PI / 180 );
affine[1][0] = 0;
- affine[1][1] = sy;
+ affine[1][1] = 1;
affine[1][2] = 0;
- affine[2][0] = 0;
+ affine[2][0] = sin( angle * M_PI / 180 );
affine[2][1] = 0;
- affine[2][2] = 1;
+ affine[2][2] = cos( angle * M_PI / 180 );
affine_multiply( this, affine );
}
-// Shear by a given value
-static void affine_shear( float this[3][3], float shear )
+static void affine_rotate_z( float this[3][3], float angle )
{
float affine[3][3];
affine[0][0] = 1;
- affine[0][1] = shear;
+ affine[0][1] = 0;
affine[0][2] = 0;
affine[1][0] = 0;
- affine[1][1] = 1;
+ affine[1][1] = cos( angle * M_PI / 180 );
+ affine[1][2] = sin( angle * M_PI / 180 );
+ affine[2][0] = 0;
+ affine[2][1] = - sin( angle * M_PI / 180 );
+ affine[2][2] = cos( angle * M_PI / 180 );
+ affine_multiply( this, affine );
+}
+
+static void affine_scale( float this[3][3], float sx, float sy )
+{
+ float affine[3][3];
+ affine[0][0] = sx;
+ affine[0][1] = 0;
+ affine[0][2] = 0;
+ affine[1][0] = 0;
+ affine[1][1] = sy;
affine[1][2] = 0;
affine[2][0] = 0;
affine[2][1] = 0;
}
// Shear by a given value
-static void affine_invert( float this[3][3] )
+static void affine_shear( float this[3][3], float shear_x, float shear_y, float shear_z )
{
float affine[3][3];
affine[0][0] = 1;
- affine[0][1] = -1;
+ affine[0][1] = tan( shear_x * M_PI / 180 );
affine[0][2] = 0;
- affine[1][0] = -1;
+ affine[1][0] = tan( shear_y * M_PI / 180 );
affine[1][1] = 1;
- affine[1][2] = 0;
+ affine[1][2] = tan( shear_z * M_PI / 180 );
affine[2][0] = 0;
affine[2][1] = 0;
affine[2][2] = 1;
}
// Obtain the mapped x coordinate of the input
-static inline float MapX( float this[3][3], int x, int y )
+static inline double MapX( float this[3][3], int x, int y )
{
- return this[0][0] * x + this[0][1] * y + this[0][2] + 0.5;
+ return this[0][0] * x + this[0][1] * y + this[0][2];
}
// Obtain the mapped y coordinate of the input
-static inline float MapY( float this[3][3], int x, int y )
+static inline double MapY( float this[3][3], int x, int y )
+{
+ return this[1][0] * x + this[1][1] * y + this[1][2];
+}
+
+static inline double MapZ( float this[3][3], int x, int y )
+{
+ return this[2][0] * x + this[2][1] * y + this[2][2];
+}
+
+#define MAX( x, y ) x > y ? x : y
+#define MIN( x, y ) x < y ? x : y
+
+static void affine_max_output( float this[3][3], float *w, float *h, float dz )
{
- return this[1][0] * x + this[1][1] * y + this[1][2] + 0.5;
+ int tlx = MapX( this, -720, 576 ) / dz;
+ int tly = MapY( this, -720, 576 ) / dz;
+ int trx = MapX( this, 720, 576 ) / dz;
+ int try = MapY( this, 720, 576 ) / dz;
+ int blx = MapX( this, -720, -576 ) / dz;
+ int bly = MapY( this, -720, -576 ) / dz;
+ int brx = MapX( this, 720, -576 ) / dz;
+ int bry = MapY( this, 720, -576 ) / dz;
+
+ int max_x;
+ int max_y;
+ int min_x;
+ int min_y;
+
+ max_x = MAX( tlx, trx );
+ max_x = MAX( max_x, blx );
+ max_x = MAX( max_x, brx );
+
+ min_x = MIN( tlx, trx );
+ min_x = MIN( min_x, blx );
+ min_x = MIN( min_x, brx );
+
+ max_y = MAX( tly, try );
+ max_y = MAX( max_y, bly );
+ max_y = MAX( max_y, bry );
+
+ min_y = MIN( tly, try );
+ min_y = MIN( min_y, bly );
+ min_y = MIN( min_y, bry );
+
+ *w = ( float )( max_x - min_x + 1 ) / 1440.0;
+ *h = ( float )( max_y - min_y + 1 ) / 1152.0;
+}
+
+#define IN_RANGE( v, r ) ( v >= - r / 2 && v < r / 2 )
+
+static inline void get_affine( affine_t *affine, mlt_transition this, float position )
+{
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
+ int keyed = mlt_properties_get_int( properties, "keyed" );
+ affine_init( affine->matrix );
+
+ if ( keyed == 0 )
+ {
+ float fix_rotate_x = mlt_properties_get_double( properties, "fix_rotate_x" );
+ float fix_rotate_y = mlt_properties_get_double( properties, "fix_rotate_y" );
+ float fix_rotate_z = mlt_properties_get_double( properties, "fix_rotate_z" );
+ float rotate_x = mlt_properties_get_double( properties, "rotate_x" );
+ float rotate_y = mlt_properties_get_double( properties, "rotate_y" );
+ float rotate_z = mlt_properties_get_double( properties, "rotate_z" );
+ float fix_shear_x = mlt_properties_get_double( properties, "fix_shear_x" );
+ float fix_shear_y = mlt_properties_get_double( properties, "fix_shear_y" );
+ float fix_shear_z = mlt_properties_get_double( properties, "fix_shear_z" );
+ float shear_x = mlt_properties_get_double( properties, "shear_x" );
+ float shear_y = mlt_properties_get_double( properties, "shear_y" );
+ float shear_z = mlt_properties_get_double( properties, "shear_z" );
+ float ox = mlt_properties_get_double( properties, "ox" );
+ float oy = mlt_properties_get_double( properties, "oy" );
+
+ affine_rotate_x( affine->matrix, fix_rotate_x + rotate_x * position );
+ affine_rotate_y( affine->matrix, fix_rotate_y + rotate_y * position );
+ affine_rotate_z( affine->matrix, fix_rotate_z + rotate_z * position );
+ affine_shear( affine->matrix,
+ fix_shear_x + shear_x * position,
+ fix_shear_y + shear_y * position,
+ fix_shear_z + shear_z * position );
+ affine_offset( affine->matrix, ox, oy );
+ }
+ else
+ {
+ float rotate_x = composite_calculate_key( this, "rotate_x", "rotate_x_info", 360, position );
+ float rotate_y = composite_calculate_key( this, "rotate_y", "rotate_y_info", 360, position );
+ float rotate_z = composite_calculate_key( this, "rotate_z", "rotate_z_info", 360, position );
+ float shear_x = composite_calculate_key( this, "shear_x", "shear_x_info", 360, position );
+ float shear_y = composite_calculate_key( this, "shear_y", "shear_y_info", 360, position );
+ float shear_z = composite_calculate_key( this, "shear_z", "shear_z_info", 360, position );
+
+ affine_rotate_x( affine->matrix, rotate_x );
+ affine_rotate_y( affine->matrix, rotate_y );
+ affine_rotate_z( affine->matrix, rotate_z );
+ affine_shear( affine->matrix, shear_x, shear_y, shear_z );
+ }
}
/** Get the image.
mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
// Get the transition object
- mlt_transition transition = mlt_frame_pop_service( a_frame );
+ mlt_transition this = 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( this );
// Get the properties of the a frame
- //mlt_properties a_props = mlt_frame_properties( 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 );
// Image, format, width, height and image for the b frame
uint8_t *b_image = NULL;
int b_width;
int b_height;
+ // Get the unique name to retrieve the frame position
+ char *name = mlt_properties_get( properties, "_unique_id" );
+
+ // Assign the current position to the name
+ mlt_position position = mlt_properties_get_position( a_props, name );
+ mlt_position in = mlt_properties_get_position( properties, "in" );
+ mlt_position out = mlt_properties_get_position( properties, "out" );
+ int mirror = mlt_properties_get_position( properties, "mirror" );
+ int length = out - in + 1;
+
+ // Obtain the normalised width and height from the a_frame
+ int normalised_width = mlt_properties_get_int( a_props, "normalised_width" );
+ int normalised_height = mlt_properties_get_int( a_props, "normalised_height" );
+
+ double consumer_ar = mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) ;
+
+ // Structures for geometry
+ struct mlt_geometry_item_s result;
+
+ if ( mirror && position > length / 2 )
+ position = abs( position - length );
+
// Fetch the a frame image
mlt_frame_get_image( a_frame, image, format, width, height, 1 );
+ // Calculate the region now
+ composite_calculate( this, &result, normalised_width, normalised_height, ( float )position );
+
// Fetch the b frame image
- b_width = *width;
- b_height = *height;
- mlt_properties_set( mlt_frame_properties( b_frame ), "rescale.interp", "nearest" );
- mlt_properties_set( mlt_frame_properties( b_frame ), "distort", "true" );
+ result.w = ( int )( result.w * *width / normalised_width );
+ result.h = ( int )( result.h * *height / normalised_height );
+ result.x = ( int )( result.x * *width / normalised_width );
+ result.y = ( int )( result.y * *height / normalised_height );
+ //result.w -= ( int )abs( result.w ) % 2;
+ //result.x -= ( int )abs( result.x ) % 2;
+ b_width = result.w;
+ b_height = result.h;
+
+ if ( mlt_properties_get_double( b_props, "aspect_ratio" ) == 0.0 )
+ mlt_properties_set_double( b_props, "aspect_ratio", consumer_ar );
+
+ if ( !strcmp( mlt_properties_get( a_props, "rescale.interp" ), "none" ) )
+ {
+ mlt_properties_set( b_props, "rescale.interp", "nearest" );
+ mlt_properties_set_double( b_props, "consumer_aspect_ratio", consumer_ar );
+ }
+ else
+ {
+ mlt_properties_set( b_props, "rescale.interp", mlt_properties_get( a_props, "rescale.interp" ) );
+ mlt_properties_set_double( b_props, "consumer_aspect_ratio", consumer_ar );
+ }
+
+ mlt_properties_set_int( b_props, "distort", mlt_properties_get_int( properties, "distort" ) );
mlt_frame_get_image( b_frame, &b_image, &b_format, &b_width, &b_height, 0 );
+ result.w = b_width;
+ result.h = b_height;
// Check that both images are of the correct format and process
if ( *format == mlt_image_yuv422 && b_format == mlt_image_yuv422 )
{
- int x, y;
- int dx, dy;
-
- // This is the matrix we're creating
- affine_t *affine = mlt_properties_get_data( properties, "affine", NULL );
+ register int x, y;
+ register int dx, dy;
+ double dz;
+ float sw, sh;
// Get values from the transition
- char *geometry = mlt_properties_get( properties, "geometry" );
- float rotate = mlt_properties_get_double( properties, "rotate" );
- float shear = mlt_properties_get_double( properties, "shear" );
- int invert = mlt_properties_get_int( properties, "invert" );
- float sx = mlt_properties_get_double( properties, "sx" );
- float sy = mlt_properties_get_double( properties, "sy" );
- float ox = mlt_properties_get_double( properties, "ox" );
- float oy = mlt_properties_get_double( properties, "oy" );
-
- // Geometry
- float gx = 0;
- float gy = 0;
- float gw = *width;
- float gh = *height;
+ float scale_x = mlt_properties_get_double( properties, "scale_x" );
+ float scale_y = mlt_properties_get_double( properties, "scale_y" );
+ int scale = mlt_properties_get_int( properties, "scale" );
uint8_t *p = *image;
- //uint8_t *luma = mlt_properties_get_data( b_props, "luma", NULL );
+ uint8_t *q = *image;
- // Constructuct the matrix
- if ( rotate != 0 )
- affine_rotate( affine->matrix, rotate );
- if ( shear != 0 )
- affine_shear( affine->matrix, shear );
+ int cx = result.x + ( b_width >> 1 );
+ int cy = result.y + ( b_height >> 1 );
+ cx -= cx % 2;
- affine_scale( affine->matrix, sx, sy );
- affine_offset( affine->matrix, ox, oy );
- if ( invert )
- affine_invert( affine->matrix );
+ int lower_x = 0 - cx;
+ int upper_x = *width - cx;
+ int lower_y = 0 - cy;
+ int upper_y = *height - cy;
+
+ int b_stride = b_width << 1;
+ int a_stride = *width << 1;
+ int x_offset = ( int )result.w >> 1;
+ int y_offset = ( int )result.h >> 1;
+
+ uint8_t *alpha = mlt_frame_get_alpha_mask( b_frame );
+ uint8_t *mask = mlt_frame_get_alpha_mask( a_frame );
+ uint8_t *pmask = mask;
+ float mix;
+
+ affine_t affine;
+
+ get_affine( &affine, this, ( float )position );
+
+ q = *image;
+
+ dz = MapZ( affine.matrix, 0, 0 );
+
+ if ( mask == NULL )
+ {
+ mask = mlt_pool_alloc( *width * *height );
+ pmask = mask;
+ memset( mask, 255, *width * *height );
+ }
- if ( geometry != NULL )
+ if ( ( int )abs( dz * 1000 ) < 25 )
+ goto getout;
+
+ if ( scale )
+ {
+ affine_max_output( affine.matrix, &sw, &sh, dz );
+ affine_scale( affine.matrix, sw, sh );
+ }
+ else if ( scale_x != 0 && scale_y != 0 )
{
- sscanf( geometry, "%f,%f:%fx%f", &gx, &gy, &gw, &gh );
- gx = gx / 100 * *width;
- gy = gy / 100 * *height;
- gw = gw / 100 * *width;
- gh = gh / 100 * *height;
+ affine_scale( affine.matrix, scale_x, scale_y );
}
- for ( y = - *height / 2; y < *height / 2; y ++ )
+ if ( alpha == NULL )
{
- for ( x = - *width / 2; x < *width / 2; x ++ )
+ for ( y = lower_y; y < upper_y; y ++ )
{
- dx = MapX( affine->matrix, x, y ) + b_width / 2;
- dy = MapY( affine->matrix, x, y ) + b_height / 2;
+ p = q;
- if ( dx >= 0 && dx < b_width && dy >=0 && dy < b_height )
+ for ( x = lower_x; x < upper_x; x ++ )
{
- *p ++ = *( b_image + dy * b_width * 2 + dx * 2 );
- if ( x % 2 == 0 )
- *p ++ = *( b_image + dy * b_width * 2 + ( dx / 2 ) * 4 + 1 );
+ dx = MapX( affine.matrix, x, y ) / dz + x_offset;
+ dy = MapY( affine.matrix, x, y ) / dz + y_offset;
+
+ if ( dx >= 0 && dx < b_width && dy >=0 && dy < b_height )
+ {
+ pmask ++;
+ dx -= dx & 1;
+ *p ++ = *( b_image + dy * b_stride + ( dx << 1 ) );
+ *p ++ = *( b_image + dy * b_stride + ( dx << 1 ) + ( ( x & 1 ) << 1 ) + 1 );
+ }
else
- *p ++ = *( b_image + dy * b_width * 2 + ( dx / 2 ) * 4 + 3 );
+ {
+ p += 2;
+ pmask ++;
+ }
}
- else
+
+ q += a_stride;
+ }
+ }
+ else
+ {
+ for ( y = lower_y; y < upper_y; y ++ )
+ {
+ p = q;
+
+ for ( x = lower_x; x < upper_x; x ++ )
{
- p += 2;
+ dx = MapX( affine.matrix, x, y ) / dz + x_offset;
+ dy = MapY( affine.matrix, x, y ) / dz + y_offset;
+
+ if ( dx >= 0 && dx < b_width && dy >=0 && dy < b_height )
+ {
+ *pmask ++ = *( alpha + dy * b_width + dx );
+ mix = ( float )*( alpha + dy * b_width + dx ) / 255.0;
+ dx -= dx & 1;
+ *p = *p * ( 1 - mix ) + mix * *( b_image + dy * b_stride + ( dx << 1 ) );
+ p ++;
+ *p = *p * ( 1 - mix ) + mix * *( b_image + dy * b_stride + ( dx << 1 ) + ( ( x & 1 ) << 1 ) + 1 );
+ p ++;
+ }
+ else
+ {
+ p += 2;
+ pmask ++;
+ }
}
+
+ q += a_stride;
}
}
+
+getout:
+ a_frame->get_alpha_mask = NULL;
+ mlt_properties_set_data( a_props, "alpha", mask, 0, mlt_pool_release, NULL );
}
return 0;
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 a_props = MLT_FRAME_PROPERTIES( a_frame );
+ mlt_properties_set_position( a_props, 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 );
-
+
return a_frame;
}
/** Constructor for the filter.
*/
-mlt_transition transition_affine_init( char *arg )
+mlt_transition transition_affine_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
{
mlt_transition transition = mlt_transition_new( );
if ( transition != NULL )
{
- affine_t *affine = malloc( sizeof( affine_t ) );
- affine_init( affine->matrix );
- mlt_properties_set_data( mlt_transition_properties( transition ), "affine", affine, 0, free, NULL );
- mlt_properties_set_int( mlt_transition_properties( transition ), "sx", 1 );
- mlt_properties_set_int( mlt_transition_properties( transition ), "sy", 1 );
- mlt_properties_set( mlt_transition_properties( transition ), "geometry", "0,0:100%x100%" );
+ mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( transition ), "sx", 1 );
+ mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( transition ), "sy", 1 );
+ mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( transition ), "distort", 0 );
+ mlt_properties_set( MLT_TRANSITION_PROPERTIES( transition ), "geometry", "0,0:100%x100%" );
+ // Inform apps and framework that this is a video only transition
+ mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( transition ), "_transition_type", 1 );
transition->process = transition_process;
}
return transition;
projects / melted / blobdiff