// Get the image
int error = mlt_frame_get_image( frame, image, format, width, height, 1 );
+ // Get the alpha
+ uint8_t *alpha = mlt_frame_get_alpha_mask( frame );
+
// If we have an image of the right colour space
if ( error == 0 && *format == mlt_image_yuv422 )
{
{
uint8_t *p = NULL;
uint8_t *q = NULL;
+ uint8_t *a = NULL;
+ uint8_t *b = NULL;
int i;
+ int uneven_w = ( *width % 2 ) * 2;
for ( i = 0; i < *height; i ++ )
{
p = ( uint8_t * )*image + i * *width * 2;
q = p + *width * 2;
+ a = alpha + i * *width;
+ b = a + *width - 1;
if ( !reverse )
{
while ( p < q )
{
*p ++ = *( q - 2 );
- *p ++ = *( q - 3 );
+ *p ++ = *( q - 3 - uneven_w );
*p ++ = *( q - 4 );
- *p ++ = *( q - 1 );
+ *p ++ = *( q - 1 - uneven_w );
q -= 4;
+ *a ++ = *b --;
+ *a ++ = *b --;
}
}
else
while ( p < q )
{
*( q - 2 ) = *p ++;
- *( q - 3 ) = *p ++;
+ *( q - 3 - uneven_w ) = *p ++;
*( q - 4 ) = *p ++;
- *( q - 1 ) = *p ++;
+ *( q - 1 - uneven_w ) = *p ++;
q -= 4;
+ *b -- = *a ++;
+ *b -- = *a ++;
}
}
}
uint16_t *end = ( uint16_t *)*image + *width * *height;
uint16_t *p = NULL;
uint16_t *q = NULL;
+ uint8_t *a = NULL;
+ uint8_t *b = NULL;
int i;
int j;
for ( i = 0; i < hh; i ++ )
p = ( uint16_t * )*image + i * *width;
q = end - ( i + 1 ) * *width;
j = *width;
+ a = alpha + i * *width;
+ b = alpha + ( *height - i - 1 ) * *width;
if ( !reverse )
{
while ( j -- )
+ {
*p ++ = *q ++;
+ *a ++ = *b ++;
+ }
}
else
{
while ( j -- )
+ {
*q ++ = *p ++;
+ *b ++ = *a ++;
+ }
}
}
}
uint8_t *end = ( uint8_t *)*image + *width * *height * 2;
uint8_t *p = NULL;
uint8_t *q = NULL;
+ uint8_t *a = NULL;
+ uint8_t *b = NULL;
int i;
int j;
+ int uneven_w = ( *width % 2 ) * 2;
for ( i = 0; i < *height; i ++ )
{
p = ( uint8_t * )*image + i * *width * 2;
q = end - i * *width * 2;
j = ( ( *width * ( *height - i ) ) / *height ) / 2;
+ a = alpha + i * *width;
+ b = alpha + ( *height - i - 1 ) * *width;
if ( !reverse )
{
while ( j -- )
{
*p ++ = *( q - 2 );
- *p ++ = *( q - 3 );
+ *p ++ = *( q - 3 - uneven_w );
*p ++ = *( q - 4 );
- *p ++ = *( q - 1 );
+ *p ++ = *( q - 1 - uneven_w );
q -= 4;
+ *a ++ = *b --;
+ *a ++ = *b --;
}
}
else
while ( j -- )
{
*( q - 2 ) = *p ++;
- *( q - 3 ) = *p ++;
+ *( q - 3 - uneven_w ) = *p ++;
*( q - 4 ) = *p ++;
- *( q - 1 ) = *p ++;
+ *( q - 1 - uneven_w ) = *p ++;
q -= 4;
+ *b -- = *a ++;
+ *b -- = *a ++;
}
}
}
uint8_t *q = NULL;
int i;
int j;
+ uint8_t *a = NULL;
+ uint8_t *b = NULL;
+ int uneven_w = ( *width % 2 ) * 2;
for ( i = 0; i < *height; i ++ )
{
p = ( uint8_t * )*image + ( i + 1 ) * *width * 2;
q = end - ( i + 1 ) * *width * 2;
j = ( ( *width * ( *height - i ) ) / *height ) / 2;
+ a = alpha + ( i + 1 ) * *width - 1;
+ b = alpha + ( *height - i - 1 ) * *width;
if ( !reverse )
{
while ( j -- )
{
*q ++ = *( p - 2 );
- *q ++ = *( p - 3 );
+ *q ++ = *( p - 3 - uneven_w );
*q ++ = *( p - 4 );
- *q ++ = *( p - 1 );
+ *q ++ = *( p - 1 - uneven_w );
p -= 4;
+ *b ++ = *a --;
+ *b ++ = *a --;
}
}
else
while ( j -- )
{
*( p - 2 ) = *q ++;
- *( p - 3 ) = *q ++;
+ *( p - 3 - uneven_w ) = *q ++;
*( p - 4 ) = *q ++;
- *( p - 1 ) = *q ++;
+ *( p - 1 - uneven_w ) = *q ++;
p -= 4;
+ *a -- = *b ++;
+ *a -- = *b ++;
}
}
}
uint8_t *p = NULL;
uint8_t *q = NULL;
int i;
+ uint8_t *a = NULL;
+ uint8_t *b = NULL;
+ uint8_t c;
+ int uneven_w = ( *width % 2 ) * 2;
for ( i = 0; i < *height; i ++ )
{
p = ( uint8_t * )*image + i * *width * 2;
q = p + *width * 2;
+ a = alpha + i * *width;
+ b = a + *width - 1;
while ( p < q )
{
t[ 0 ] = p[ 0 ];
- t[ 1 ] = p[ 1 ];
+ t[ 1 ] = p[ 1 + uneven_w ];
t[ 2 ] = p[ 2 ];
- t[ 3 ] = p[ 3 ];
+ t[ 3 ] = p[ 3 + uneven_w ];
*p ++ = *( q - 2 );
- *p ++ = *( q - 3 );
+ *p ++ = *( q - 3 - uneven_w );
*p ++ = *( q - 4 );
- *p ++ = *( q - 1 );
+ *p ++ = *( q - 1 - uneven_w );
*( -- q ) = t[ 3 ];
*( -- q ) = t[ 0 ];
*( -- q ) = t[ 1 ];
*( -- q ) = t[ 2 ];
+ c = *a;
+ *a ++ = *b;
+ *b -- = c;
+ c = *a;
+ *a ++ = *b;
+ *b -- = c;
}
}
}
uint16_t *p = NULL;
uint16_t *q = NULL;
uint16_t t;
+ uint8_t *a = NULL;
+ uint8_t *b = NULL;
+ uint8_t c;
int i;
int j;
for ( i = 0; i < hh; i ++ )
{
p = ( uint16_t * )*image + i * *width;
q = end - ( i + 1 ) * *width;
+ a = alpha + i * *width;
+ b = alpha + ( *height - i - 1 ) * *width;
j = *width;
while ( j -- )
{
t = *p;
*p ++ = *q;
*q ++ = t;
+ c = *a;
+ *a ++ = *b;
+ *b ++ = c;
}
}
}