#define _MLT_FRAME_H_
#include "mlt_properties.h"
+#include "mlt_deque.h"
-typedef enum
-{
- mlt_image_none = 0,
- mlt_image_rgb24,
- mlt_image_rgb24a,
- mlt_image_yuv422,
- mlt_image_yuv420p
-}
-mlt_image_format;
-
-typedef enum
-{
- mlt_video_standard_pal = 0,
- mlt_video_standard_ntsc
-}
-mlt_video_standard;
-
-typedef enum
-{
- mlt_audio_none = 0,
- mlt_audio_pcm
-}
-mlt_audio_format;
-
-typedef int ( *mlt_get_image )( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable );
+typedef int ( *mlt_get_image )( mlt_frame self, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable );
+typedef int ( *mlt_get_audio )( mlt_frame self, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples );
struct mlt_frame_s
{
struct mlt_properties_s parent;
// Virtual methods
- int ( *get_audio )( mlt_frame this, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples );
- uint8_t * ( *get_alpha_mask )( mlt_frame this );
+ uint8_t * ( *get_alpha_mask )( mlt_frame self );
// Private properties
- mlt_get_image stack_get_image[ 10 ];
- int stack_get_image_size;
- mlt_frame stack_frame[ 10 ];
- int stack_frame_size;
+ mlt_deque stack_image;
+ mlt_deque stack_audio;
+ mlt_deque stack_service;
};
-extern mlt_frame mlt_frame_init( );
-extern mlt_properties mlt_frame_properties( mlt_frame this );
-extern int mlt_frame_is_test_card( mlt_frame this );
-extern double mlt_frame_get_aspect_ratio( mlt_frame this );
-extern int mlt_frame_set_aspect_ratio( mlt_frame this, double value );
-extern mlt_timecode mlt_frame_get_timecode( mlt_frame this );
-extern int mlt_frame_set_timecode( mlt_frame this, mlt_timecode value );
+#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 int mlt_frame_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable );
-extern uint8_t *mlt_frame_get_alpha_mask( mlt_frame this );
-extern int mlt_frame_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples );
-
-extern int mlt_frame_push_get_image( mlt_frame this, mlt_get_image get_image );
-extern mlt_get_image mlt_frame_pop_get_image( mlt_frame this );
-extern int mlt_frame_push_frame( mlt_frame this, mlt_frame that );
-extern mlt_frame mlt_frame_pop_frame( mlt_frame this );
-extern void mlt_frame_close( mlt_frame this );
+extern mlt_frame mlt_frame_init( );
+extern mlt_properties mlt_frame_properties( mlt_frame self );
+extern int mlt_frame_is_test_card( mlt_frame self );
+extern int mlt_frame_is_test_audio( mlt_frame self );
+extern double mlt_frame_get_aspect_ratio( mlt_frame self );
+extern int mlt_frame_set_aspect_ratio( mlt_frame self, double value );
+extern mlt_position mlt_frame_get_position( mlt_frame self );
+extern int mlt_frame_set_position( mlt_frame self, mlt_position value );
+extern void mlt_frame_replace_image( mlt_frame self, uint8_t *image, mlt_image_format format, int width, int height );
+extern int mlt_frame_get_image( mlt_frame self, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable );
+extern uint8_t *mlt_frame_get_alpha_mask( mlt_frame self );
+extern int mlt_frame_get_audio( mlt_frame self, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples );
+extern unsigned char *mlt_frame_get_waveform( mlt_frame self, int w, int h );
+extern int mlt_frame_push_get_image( mlt_frame self, mlt_get_image get_image );
+extern mlt_get_image mlt_frame_pop_get_image( mlt_frame self );
+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 );
+extern mlt_producer mlt_frame_get_original_producer( mlt_frame self );
+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_frame_composite_yuv( mlt_frame this, mlt_frame that, int x, int y, float weight );
-
-#endif
+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_sample_calculator( 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
+
+/* 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
+
+#endif
projects / mlt / blobdiff