typedef struct
{
struct mlt_transition_s parent;
- char *filename;
int width;
int height;
- float *bitmap;
+ uint16_t *bitmap;
}
transition_luma;
// forward declarations
static void transition_close( mlt_transition parent );
-
-// image processing functions
-
-static inline float smoothstep( float edge1, float edge2, float a )
-{
- if ( a < edge1 )
- return 0.0;
-
- if ( a >= edge2 )
- return 1.0;
-
- a = ( a - edge1 ) / ( edge2 - edge1 );
-
- return ( a * a * ( 3 - 2 * a ) );
-}
-
/** Calculate the position for this frame.
*/
// Now do the calcs
float x = ( float )( position - in ) / ( float )( out - in + 1 );
- position++;
- float y = ( float )( position - in ) / ( float )( out - in + 1 );
+ float y = ( float )( position + 1 - in ) / ( float )( out - in + 1 );
return ( y - x ) / 2.0;
}
int width_src = width, height_src = height;
mlt_image_format format = mlt_image_yuv422;
uint8_t *p_src, *p_dest;
- float weight_complement = 1 - weight;
uint8_t *p;
uint8_t *limit;
- mlt_frame_get_image( this, &p_dest, &format, &width, &height, 1 /* writable */ );
- mlt_frame_get_image( that, &p_src, &format, &width_src, &height_src, 0 /* writable */ );
-
+ int32_t weigh = weight * ( 1 << 16 );
+ int32_t weigh_complement = ( 1 - weight ) * ( 1 << 16 );
+
+ mlt_frame_get_image( this, &p_dest, &format, &width, &height, 1 );
+ mlt_frame_get_image( that, &p_src, &format, &width_src, &height_src, 0 );
+
p = p_dest;
limit = p_dest + height_src * width_src * 2;
while ( p < limit )
- *p_dest++ = ( uint8_t )( *p_src++ * weight + *p++ * weight_complement );
+ {
+ *p_dest++ = ( *p_src++ * weigh + *p++ * weigh_complement ) >> 16;
+ *p_dest++ = ( *p_src++ * weigh + *p++ * weigh_complement ) >> 16;
+ }
return ret;
}
+// image processing functions
+
+static uint32_t smoothstep( int32_t edge1, int32_t edge2, uint32_t a )
+{
+ if ( a < edge1 )
+ return 0;
+
+ if ( a >= edge2 )
+ return 0x10000;
+
+ a = ( ( a - edge1 ) << 16 ) / ( edge2 - edge1 );
+
+ return ( ( ( a * a ) >> 16 ) * ( ( 3 << 16 ) - ( 2 * a ) ) ) >> 16;
+}
+
/** powerful stuff
\param field_order -1 = progressive, 0 = lower field first, 1 = top field first
*/
static void luma_composite( mlt_frame a_frame, mlt_frame b_frame, int luma_width, int luma_height,
- float *luma_bitmap, float pos, float frame_delta, float softness, int field_order,
+ uint16_t *luma_bitmap, float pos, float frame_delta, float softness, int field_order,
int *width, int *height )
{
int width_src = *width, height_src = *height;
int i, j;
int stride_src;
int stride_dest;
- float weight = 0;
- int field;
+ uint16_t weight = 0;
format_src = mlt_image_yuv422;
format_dest = mlt_image_yuv422;
- mlt_frame_get_image( a_frame, &p_dest, &format_dest, &width_dest, &height_dest, 1 /* writable */ );
- mlt_frame_get_image( b_frame, &p_src, &format_src, &width_src, &height_src, 0 /* writable */ );
+ 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 );
stride_src = width_src * 2;
stride_dest = width_dest * 2;
// Offset the position based on which field we're looking at ...
- float field_pos[ 2 ];
- field_pos[ 0 ] = pos + ( ( field_order == 0 ? 1 : 0 ) * frame_delta * 0.5 );
- field_pos[ 1 ] = pos + ( ( field_order == 0 ? 0 : 1 ) * frame_delta * 0.5 );
+ int32_t field_pos[ 2 ];
+ field_pos[ 0 ] = ( pos + ( ( field_order == 0 ? 1 : 0 ) * frame_delta * 0.5 ) ) * ( 1 << 16 ) * ( 1.0 + softness );
+ field_pos[ 1 ] = ( pos + ( ( field_order == 0 ? 0 : 1 ) * frame_delta * 0.5 ) ) * ( 1 << 16 ) * ( 1.0 + softness );
- // adjust the position for the softness level
- field_pos[ 0 ] *= ( 1.0 + softness );
- field_pos[ 1 ] *= ( 1.0 + softness );
+ register uint8_t *p;
+ register uint8_t *q;
+ register uint8_t *o;
+ uint16_t *l;
- uint8_t *p;
- uint8_t *q;
- uint8_t *o;
- float *l;
+ uint32_t value;
- uint8_t y;
- uint8_t uv;
- float value;
+ int32_t x_diff = ( luma_width << 16 ) / *width;
+ int32_t y_diff = ( luma_height << 16 ) / *height;
+ int32_t x_offset = 0;
+ int32_t y_offset = 0;
+ uint8_t *p_row;
+ uint8_t *q_row;
- float x_diff = ( float )luma_width / ( float )*width;
- float y_diff = ( float )luma_height / ( float )*height;
+ int32_t i_softness = softness * ( 1 << 16 );
+
+ 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
- for ( field = 0; field < ( field_order < 0 ? 1 : 2 ); ++field )
+ while ( field < field_count )
{
- for ( i = field; i < height_src; i += ( field_order < 0 ? 1 : 2 ) )
- {
- p = &p_src[ i * stride_src ];
- q = &p_dest[ i * stride_dest ];
- o = &p_dest[ i * stride_dest ];
- l = &luma_bitmap[ ( int )( ( float )i * y_diff ) * luma_width ];
+ p_row = p_src + field * stride_src;
+ q_row = p_dest + field * stride_dest;
+ y_offset = ( field * luma_width ) << 16;
+ i = field;
- for ( j = 0; j < width_src; j ++ )
+ while ( i < height_src )
+ {
+ p = p_row;
+ q = q_row;
+ o = q;
+ l = luma_bitmap + ( y_offset >> 16 ) * ( luma_width * field_count );
+ x_offset = 0;
+ j = width_src;
+
+ while( j -- )
{
- y = *p ++;
- uv = *p ++;
- weight = l[ ( int )( ( float )j * x_diff ) ];
- value = smoothstep( weight, weight + softness, field_pos[ field ] );
-
- *o ++ = (uint8_t)( y * value + *q++ * ( 1 - value ) );
- *o ++ = (uint8_t)( uv * value + *q++ * ( 1 - value ) );
+ weight = l[ x_offset >> 16 ];
+ value = smoothstep( weight, i_softness + weight, field_pos[ field ] );
+ *o ++ = ( *p ++ * value + *q++ * ( ( 1 << 16 ) - value ) ) >> 16;
+ *o ++ = ( *p ++ * value + *q++ * ( ( 1 << 16 ) - value ) ) >> 16;
+ x_offset += x_diff;
}
+
+ y_offset += y_diff;
+ i += field_count;
+ p_row += field_stride_src;
+ q_row += field_stride_dest;
}
+
+ field ++;
}
}
float frame_delta = mlt_properties_get_double( b_props, "luma.delta" );
int luma_width = mlt_properties_get_int( b_props, "luma.width" );
int luma_height = mlt_properties_get_int( b_props, "luma.height" );
- float *luma_bitmap = mlt_properties_get_data( b_props, "luma.bitmap", NULL );
+ uint16_t *luma_bitmap = mlt_properties_get_data( b_props, "luma.bitmap", NULL );
float luma_softness = mlt_properties_get_double( b_props, "luma.softness" );
int progressive = mlt_properties_get_int( b_props, "progressive" ) ||
mlt_properties_get_int( a_props, "consumer_progressive" ) ||
/** Load the luma map from PGM stream.
*/
-static void luma_read_pgm( FILE *f, float **map, int *width, int *height )
+static void luma_read_pgm( FILE *f, uint16_t **map, int *width, int *height )
{
uint8_t *data = NULL;
while (1)
int i = 2;
int maxval;
int bpp;
- float *p;
+ uint16_t *p;
line[127] = '\0';
break;
// allocate the luma bitmap
- *map = p = (float*)mlt_pool_alloc( *width * *height * sizeof( float ) );
+ *map = p = (uint16_t*)mlt_pool_alloc( *width * *height * sizeof( uint16_t ) );
if ( *map == NULL )
break;
for ( i = 0; i < *width * *height * bpp; i += bpp )
{
if ( bpp == 1 )
- *p++ = (float) data[ i ] / (float) maxval;
+ *p++ = data[ i ] << 8;
else
- *p++ = (float) ( ( data[ i ] << 8 ) + data[ i+1 ] ) / (float) maxval;
+ *p++ = ( data[ i ] << 8 ) + data[ i+1 ];
}
break;
mlt_properties b_props = mlt_frame_properties( b_frame );
// If the filename property changed, reload the map
- char *luma_file = mlt_properties_get( properties, "resource" );
- if ( luma_file != NULL && ( this->filename == NULL || ( this->filename && strcmp( luma_file, this->filename ) ) ) )
+ char *lumafile = mlt_properties_get( properties, "resource" );
+ if ( this->bitmap == NULL && lumafile != NULL )
{
- FILE *pipe;
-
- free( this->filename );
- this->filename = strdup( luma_file );
- pipe = fopen( luma_file, "r" );
+ FILE *pipe = fopen( lumafile, "r" );
if ( pipe != NULL )
{
- mlt_pool_release( this->bitmap );
luma_read_pgm( pipe, &this->bitmap, &this->width, &this->height );
fclose( pipe );
}
{
transition_luma *this = (transition_luma*) parent->child;
mlt_pool_release( this->bitmap );
- free( this->filename );
free( this );
}
projects / melted / blobdiff