+ Preparation for a QT image loader (to allow optional and functionally equivalent...

[melted] / src / framework / mlt_frame.h

diff --git a/src/framework/mlt_frame.h b/src/framework/mlt_frame.h
index 899b0d2..7742f5a 100644 (file)
--- a/src/framework/mlt_frame.h
+++ b/src/framework/mlt_frame.h
@@ -43,6 +43,8 @@ struct mlt_frame_s
 
 #define MLT_FRAME_PROPERTIES( frame )          ( &( frame )->parent )
 #define MLT_FRAME_SERVICE_STACK( frame )       ( ( frame )->stack_service )
+#define MLT_FRAME_IMAGE_STACK( frame )         ( ( frame )->stack_image )
+#define MLT_FRAME_AUDIO_STACK( frame )         ( ( frame )->stack_audio )
 
 extern mlt_frame mlt_frame_init( );
 extern mlt_properties mlt_frame_properties( mlt_frame self );
@@ -63,6 +65,8 @@ extern int mlt_frame_push_frame( mlt_frame self, mlt_frame that );
 extern mlt_frame mlt_frame_pop_frame( mlt_frame self );
 extern int mlt_frame_push_service( mlt_frame self, void *that );
 extern void *mlt_frame_pop_service( mlt_frame self );
+extern int mlt_frame_push_service_int( mlt_frame self, int that );
+extern int mlt_frame_pop_service_int( mlt_frame self );
 extern int mlt_frame_push_audio( mlt_frame self, void *that );
 extern void *mlt_frame_pop_audio( mlt_frame self );
 extern mlt_deque mlt_frame_service_stack( mlt_frame self );
@@ -72,24 +76,22 @@ extern void mlt_frame_close( mlt_frame self );
 /* convenience functions */
 extern int mlt_convert_rgb24a_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha );
 extern int mlt_convert_rgb24_to_yuv422( uint8_t *rgb, int width, int height, int stride, uint8_t *yuv );
+extern int mlt_convert_bgr24a_to_yuv422( uint8_t *rgba, int width, int height, int stride, uint8_t *yuv, uint8_t *alpha );
+extern int mlt_convert_bgr24_to_yuv422( uint8_t *rgb, int width, int height, int stride, uint8_t *yuv );
 extern int mlt_convert_yuv420p_to_yuv422( uint8_t *yuv420p, int width, int height, int stride, uint8_t *yuv );
 extern uint8_t *mlt_frame_resize_yuv422( mlt_frame self, int owidth, int oheight );
 extern uint8_t *mlt_frame_rescale_yuv422( mlt_frame self, int owidth, int oheight );
 extern void mlt_resize_yuv422( uint8_t *output, int owidth, int oheight, uint8_t *input, int iwidth, int iheight );
 extern int mlt_frame_mix_audio( mlt_frame self, mlt_frame that, float weight_start, float weight_end, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples  );
+extern int mlt_frame_combine_audio( mlt_frame self, mlt_frame that, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples  );
 extern int mlt_sample_calculator( float fps, int frequency, int64_t position );
+extern int64_t mlt_sample_calculator_to_now( float fps, int frequency, int64_t position );
 
 /* 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
+  y = ((263*r + 516*g + 100*b) >> 10) + 16;\
+  u = ((-152*r - 298*g + 450*b) >> 10) + 128;\
+  v = ((450*r - 377*g - 73*b) >> 10) + 128;
 
 /* this macro assumes the user has already scaled their rgb down into the broadcast limits */
 #define RGB2YUV_UNSCALED(r, g, b, y, u, v)\
@@ -103,4 +105,12 @@ extern int mlt_sample_calculator( float fps, int frequency, int64_t position );
   u = u > 240 ? 240 : u;\
   v = v > 240 ? 240 : v
 
+#define YUV2RGB( y, u, v, r, g, b ) \
+  r = ((1192 * ( y - 16 ) + 1634 * ( v - 128 ) ) >> 10 ); \
+  g = ((1192 * ( y - 16 ) - 832 * ( v - 128 ) - 400 * ( u - 128 ) ) >> 10 ); \
+  b = ((1192 * ( y - 16 ) + 2066 * ( u - 128 ) ) >> 10 ); \
+  r = r < 0 ? 0 : r > 255 ? 255 : r; \
+  g = g < 0 ? 0 : g > 255 ? 255 : g; \
+  b = b < 0 ? 0 : b > 255 ? 255 : b;
+
 #endif