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46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
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/*
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* Asterisk -- A telephony toolkit for Linux.
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*
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* General Asterisk channel definitions.
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*
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* Copyright (C) 1999, Mark Spencer
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*
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* Mark Spencer <markster@linux-support.net>
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*/
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#ifndef _ASTERISK_IMAGE_H
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#define _ASTERISK_IMAGE_H
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struct ast_imager {
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char *name; /* Name */
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char *desc; /* Description */
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char *exts; /* Extension(s) (separated by '|' ) */
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int format; /* Image format */
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struct ast_frame *(*read_image)(int fd, int len); /* Read an image from a file descriptor */
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int (*identify)(int fd); /* Identify if this is that type of file */
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int (*write_image)(int fd, struct ast_frame *frame); /* Returns length written */
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struct ast_imager *next;
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};
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/* Returns non-zero if image transmission is supported */
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extern int ast_supports_images(struct ast_channel *chan);
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/* Sends an image */
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extern int ast_send_image(struct ast_channel *chan, char *filename);
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/* Make an image from a filename */
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extern struct ast_frame *ast_read_image(char *filename, char *preflang, int format);
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/* Register an image format */
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extern int ast_image_register(struct ast_imager *imgdrv);
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extern void ast_image_unregister(struct ast_imager *imgdrv);
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/* Initialize image stuff */
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extern int ast_image_init(void);
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#endif
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