#include "config.h"
#include "mlt_frame.h"
#include "mlt_producer.h"
+#include "mlt_factory.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
if ( this != NULL )
{
// Get the normalisation
- char *normalisation = getenv( "MLT_NORMALISATION" );
+ char *normalisation = mlt_environment( "MLT_NORMALISATION" );
// Initialise the properties
mlt_properties properties = &this->parent;
// Construct stacks for frames and methods
this->stack_get_image = mlt_deque_init( );
this->stack_frame = mlt_deque_init( );
+ this->stack_service = mlt_deque_init( );
}
return this;
return mlt_deque_pop_back( this->stack_frame );
}
+/** Push a service.
+*/
+
+int mlt_frame_push_service( mlt_frame this, void *that )
+{
+ return mlt_deque_push_back( this->stack_service, that );
+}
+
+/** Pop a service.
+*/
+
+void *mlt_frame_pop_service( mlt_frame this )
+{
+ return mlt_deque_pop_back( this->stack_service );
+}
+
int mlt_frame_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
{
mlt_properties properties = mlt_frame_properties( this );
q = p + size;
while ( p != NULL && p != q )
{
- *p ++ = 255;
+ *p ++ = 235;
*p ++ = 128;
}
break;
void mlt_frame_close( mlt_frame this )
{
- mlt_deque_close( this->stack_get_image );
- mlt_deque_close( this->stack_frame );
- mlt_properties_close( &this->parent );
- free( this );
+ if ( this != NULL )
+ {
+ mlt_deque_close( this->stack_get_image );
+ mlt_deque_close( this->stack_frame );
+ mlt_deque_close( this->stack_service );
+ mlt_properties_close( &this->parent );
+ free( this );
+ }
}
/***** convenience functions *****/
-#define RGB2YUV(r, g, b, y, u, v)\
- y = (306*r + 601*g + 117*b) >> 10;\
- u = ((-172*r - 340*g + 512*b) >> 10) + 128;\
- v = ((512*r - 429*g - 83*b) >> 10) + 128;\
- y = y < 0 ? 0 : y;\
- u = u < 0 ? 0 : u;\
- v = v < 0 ? 0 : v;\
- y = y > 255 ? 255 : y;\
- u = u > 255 ? 255 : u;\
- v = v > 255 ? 255 : v
+/* this macro scales rgb into the yuv gamut, y is scaled by 219/255 and uv by 224/255 */
+#define RGB2YUV(r, g, b, y, u, v)\
+ y = ((257*r + 504*g + 98*b) >> 10) + 16;\
+ u = ((-148*r - 291*g + 439*b) >> 10) + 128;\
+ v = ((439*r - 368*g - 71*b) >> 10) + 128;\
+ y = y < 16 ? 16 : y;\
+ u = u < 16 ? 16 : u;\
+ v = v < 16 ? 16 : v;\
+ y = y > 235 ? 235 : y;\
+ u = u > 240 ? 240 : u;\
+ v = v > 240 ? 240 : v
+
+/* this macro assumes the user has already scaled their rgb down into the broadcast limits */
+#define RGB2YUV_UNSCALED(r, g, b, y, u, v)\
+ y = (299*r + 587*g + 114*b) >> 10;\
+ u = ((-169*r - 331*g + 500*b) >> 10) + 128;\
+ v = ((500*r - 419*g - 81*b) >> 10) + 128;\
+ y = y < 16 ? 16 : y;\
+ u = u < 16 ? 16 : u;\
+ v = v < 16 ? 16 : v;\
+ y = y > 235 ? 235 : y;\
+ u = u > 240 ? 240 : u;\
+ v = v > 240 ? 240 : v
+
int mlt_convert_rgb24a_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha )
{
int ret = 0;
elements = blank_elements;
while ( elements -- )
{
- *out_line ++ = 0;
+ *out_line ++ = 16;
*out_line ++ = 128;
}
elements = inactive_width;
while ( elements -- )
{
- *out_ptr ++ = 0;
+ *out_ptr ++ = 16;
*out_ptr ++ = 128;
}
elements = inactive_width;
while ( elements -- )
{
- *out_ptr ++ = 0;
+ *out_ptr ++ = 16;
*out_ptr ++ = 128;
}
elements = blank_elements;
while ( elements -- )
{
- *out_line ++ = 0;
+ *out_line ++ = 16;
*out_line ++ = 128;
}
}
iwidth = iwidth - ( iwidth % 4 );
- // Coordinates (0,0 is middle of output)
- int y, x;
-
// Derived coordinates
int dy, dx;
int in_y_range = iheight / 2;
// Output pointers
- uint8_t *out_line = output;
- uint8_t *out_ptr;
+ register uint8_t *out_line = output;
+ register uint8_t *out_ptr;
// Calculate a middle pointer
uint8_t *in_middle = input + istride * in_y_range + in_x_range * 2;
uint8_t *in_line;
- uint8_t *in_ptr;
// Generate the affine transform scaling values
- int scale_width = ( iwidth << 16 ) / owidth;
- int scale_height = ( iheight << 16 ) / oheight;
+ register int scale_width = ( iwidth << 16 ) / owidth;
+ register int scale_height = ( iheight << 16 ) / oheight;
+ register int base = 0;
+
+ int outer = out_x_range * scale_width;
+ int bottom = out_y_range * scale_height;
// Loop for the entirety of our output height.
- for ( y = - out_y_range; y < out_y_range ; y ++ )
+ for ( dy = - bottom; dy < bottom; dy += scale_height )
{
- // Calculate the derived y value
- dy = ( scale_height * y ) >> 16;
-
// Start at the beginning of the line
out_ptr = out_line;
// Pointer to the middle of the input line
- in_line = in_middle + dy * istride;
-
+ in_line = in_middle + ( dy >> 16 ) * istride;
+
// Loop for the entirety of our output row.
- for ( x = - out_x_range; x < out_x_range; x += 1 )
+ for ( dx = - outer; dx < outer; dx += scale_width )
{
- // Calculated the derived x
- dx = ( scale_width * x ) >> 16;
-
- // We're in the input range for this row.
- in_ptr = in_line + ( dx << 1 );
- *out_ptr ++ = *in_ptr ++;
- in_ptr = in_line + ( ( dx >> 1 ) << 2 ) + ( ( x & 1 ) << 1 ) + 1;
- *out_ptr ++ = *in_ptr;
+ base = dx >> 15;
+ base &= 0xfffffffe;
+ *out_ptr ++ = *( in_line + base );
+ base &= 0xfffffffc;
+ *out_ptr ++ = *( in_line + base + 1 );
+ dx += scale_width;
+ base = dx >> 15;
+ base &= 0xfffffffe;
+ *out_ptr ++ = *( in_line + base );
+ base &= 0xfffffffc;
+ *out_ptr ++ = *( in_line + base + 3 );
}
// Move to next output line
int mlt_frame_mix_audio( mlt_frame this, mlt_frame that, float weight_start, float weight_end, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
{
int ret = 0;
- int16_t *p_src, *p_dest;
int16_t *src, *dest;
- //static int16_t *extra_src = NULL, *extra_dest = NULL;
- static int extra_src_samples = 0, extra_dest_samples = 0;
int frequency_src = *frequency, frequency_dest = *frequency;
int channels_src = *channels, channels_dest = *channels;
int samples_src = *samples, samples_dest = *samples;
int i, j;
double d = 0, s = 0;
- mlt_frame_get_audio( this, &p_dest, format, &frequency_dest, &channels_dest, &samples_dest );
+ mlt_frame_get_audio( this, &dest, format, &frequency_dest, &channels_dest, &samples_dest );
//fprintf( stderr, "mix: frame dest samples %d channels %d position %lld\n", samples_dest, channels_dest, mlt_properties_get_position( mlt_frame_properties( this ), "_position" ) );
- mlt_frame_get_audio( that, &p_src, format, &frequency_src, &channels_src, &samples_src );
+ mlt_frame_get_audio( that, &src, format, &frequency_src, &channels_src, &samples_src );
//fprintf( stderr, "mix: frame src samples %d channels %d\n", samples_src, channels_src );
- src = p_src;
- dest = p_dest;
+
if ( channels_src > 6 )
channels_src = 0;
if ( channels_dest > 6 )
if ( samples_dest > 4000 )
samples_dest = 0;
-#if 0
- // Append new samples to leftovers
- if ( extra_dest_samples > 0 )
- {
- fprintf( stderr, "prepending %d samples to dest\n", extra_dest_samples );
- dest = realloc( extra_dest, ( samples_dest + extra_dest_samples ) * 2 * channels_dest );
- memcpy( &extra_dest[ extra_dest_samples * channels_dest ], p_dest, samples_dest * 2 * channels_dest );
- }
- else
- dest = p_dest;
- if ( extra_src_samples > 0 )
- {
- fprintf( stderr, "prepending %d samples to src\n", extra_src_samples );
- src = realloc( extra_src, ( samples_src + extra_src_samples ) * 2 * channels_src );
- memcpy( &extra_src[ extra_src_samples * channels_src ], p_src, samples_src * 2 * channels_src );
- }
- else
- src = p_src;
-#endif
-
- // determine number of samples to process
- if ( samples_src + extra_src_samples < samples_dest + extra_dest_samples )
- *samples = samples_src + extra_src_samples;
- else if ( samples_dest + extra_dest_samples < samples_src + extra_src_samples )
- *samples = samples_dest + extra_dest_samples;
-
+ // determine number of samples to process
+ *samples = samples_src < samples_dest ? samples_src : samples_dest;
*channels = channels_src < channels_dest ? channels_src : channels_dest;
- *buffer = p_dest;
+ *buffer = dest;
*frequency = frequency_dest;
// Compute a smooth ramp over start to end
weight += weight_step;
}
- // We have to copy --sigh
- if ( dest != p_dest )
- memcpy( p_dest, dest, *samples * 2 * *channels );
-
-#if 0
- // Store the leftovers
- if ( samples_src + extra_src_samples < samples_dest + extra_dest_samples )
- {
- extra_dest_samples = ( samples_dest + extra_dest_samples ) - ( samples_src + extra_src_samples );
- size_t size = extra_dest_samples * 2 * channels_dest;
- fprintf( stderr, "storing %d samples from dest\n", extra_dest_samples );
- if ( extra_dest )
- free( extra_dest );
- extra_dest = malloc( size );
- if ( extra_dest )
- memcpy( extra_dest, &p_dest[ ( samples_dest - extra_dest_samples - 1 ) * channels_dest ], size );
- else
- extra_dest_samples = 0;
- }
- else if ( samples_dest + extra_dest_samples < samples_src + extra_src_samples )
- {
- extra_src_samples = ( samples_src + extra_src_samples ) - ( samples_dest + extra_dest_samples );
- size_t size = extra_src_samples * 2 * channels_src;
- fprintf( stderr, "storing %d samples from src\n", extra_dest_samples );
- if ( extra_src )
- free( extra_src );
- extra_src = malloc( size );
- if ( extra_src )
- memcpy( extra_src, &p_src[ ( samples_src - extra_src_samples - 1 ) * channels_src ], size );
- else
- extra_src_samples = 0;
- }
-#endif
-
return ret;
}
projects / melted / blobdiff