#include <stdio.h>
#include <stdlib.h>
-/** Greyscale class.
-*/
-
-typedef struct
-{
- struct mlt_filter_s parent;
-}
-filter_greyscale;
-
/** Do it :-).
*/
static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
- mlt_frame_get_image( this, image, format, width, height, 1 );
- uint8_t *p = *image;
- uint8_t *q = *image + *width * *height * 2;
- while ( p ++ != q )
- *p ++ = 128;
- return 0;
+ int error = mlt_frame_get_image( this, image, format, width, height, 1 );
+ if ( error == 0 && *format == mlt_image_yuv422 )
+ {
+ uint8_t *p = *image;
+ uint8_t *q = *image + *width * *height * 2;
+ while ( p ++ != q )
+ *p ++ = 128;
+ }
+ return error;
}
/** Filter processing.
mlt_filter filter_greyscale_init( void *arg )
{
- filter_greyscale *this = calloc( sizeof( filter_greyscale ), 1 );
+ mlt_filter this = mlt_filter_new( );
if ( this != NULL )
- {
- mlt_filter filter = &this->parent;
- mlt_filter_init( filter, this );
- filter->process = filter_process;
- }
- return ( mlt_filter )this;
+ this->process = filter_process;
+ return this;
}