2 * mlt_frame.h -- interface for all frame classes
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #include "mlt_properties.h"
38 mlt_video_standard_pal
= 0,
39 mlt_video_standard_ntsc
50 typedef int ( *mlt_get_image
)( mlt_frame
this, uint8_t **buffer
, mlt_image_format
*format
, int *width
, int *height
, int writable
);
54 // We're extending properties here
55 struct mlt_properties_s parent
;
58 int ( *get_audio
)( mlt_frame
this, int16_t **buffer
, mlt_audio_format
*format
, int *frequency
, int *channels
, int *samples
);
59 uint8_t * ( *get_alpha_mask
)( mlt_frame
this );
62 mlt_get_image stack_get_image
[ 10 ];
63 int stack_get_image_size
;
64 mlt_frame stack_frame
[ 10 ];
68 extern mlt_frame
mlt_frame_init( );
69 extern mlt_properties
mlt_frame_properties( mlt_frame
this );
70 extern int mlt_frame_is_test_card( mlt_frame
this );
71 extern double mlt_frame_get_aspect_ratio( mlt_frame
this );
72 extern int mlt_frame_set_aspect_ratio( mlt_frame
this, double value
);
73 extern mlt_position
mlt_frame_get_position( mlt_frame
this );
74 extern int mlt_frame_set_position( mlt_frame
this, mlt_position value
);
76 extern int mlt_frame_get_image( mlt_frame
this, uint8_t **buffer
, mlt_image_format
*format
, int *width
, int *height
, int writable
);
77 extern uint8_t *mlt_frame_get_alpha_mask( mlt_frame
this );
78 extern int mlt_frame_get_audio( mlt_frame
this, int16_t **buffer
, mlt_audio_format
*format
, int *frequency
, int *channels
, int *samples
);
80 extern int mlt_frame_push_get_image( mlt_frame
this, mlt_get_image get_image
);
81 extern mlt_get_image
mlt_frame_pop_get_image( mlt_frame
this );
82 extern int mlt_frame_push_frame( mlt_frame
this, mlt_frame that
);
83 extern mlt_frame
mlt_frame_pop_frame( mlt_frame
this );
84 extern void mlt_frame_close( mlt_frame
this );
86 /* convenience functions */
87 extern int mlt_convert_rgb24a_to_yuv422( uint8_t *rgba
, int width
, int height
, int stride
, uint8_t *yuv
, uint8_t *alpha
);
88 extern int mlt_convert_rgb24_to_yuv422( uint8_t *rgb
, int width
, int height
, int stride
, uint8_t *yuv
);
89 extern int mlt_convert_yuv420p_to_yuv422( uint8_t *yuv420p
, int width
, int height
, int stride
, uint8_t *yuv
);
90 extern int mlt_frame_composite_yuv( mlt_frame
this, mlt_frame that
, int x
, int y
, float weight
);
91 extern uint8_t *mlt_frame_resize_yuv422( mlt_frame
this, int owidth
, int oheight
);
92 extern uint8_t *mlt_frame_rescale_yuv422( mlt_frame
this, int owidth
, int oheight
);
93 extern void mlt_resize_yuv422( uint8_t *output
, int owidth
, int oheight
, uint8_t *input
, int iwidth
, int iheight
);
94 extern int mlt_frame_mix_audio( mlt_frame
this, mlt_frame that
, float weight
, int16_t **buffer
, mlt_audio_format
*format
, int *frequency
, int *channels
, int *samples
);
95 extern int mlt_sample_calculator( float fps
, int frequency
, int64_t position
);