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Merge updates to frame.h and frame.c (codec stuff from bug #2945, part 1)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4370 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2004-12-02 21:57:45 +00:00
parent 3253f72193
commit 36928f0644
2 changed files with 353 additions and 127 deletions
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38
include/asterisk/frame.h
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@@ -58,6 +58,11 @@ extern "C" {
#error Need to know endianess
#endif /* __BYTE_ORDER */
struct ast_codec_pref {
char order[32];
};
//! Data structure associated with a single frame of data
/* A frame of data read used to communicate between
between channels and applications */
@@ -337,11 +342,10 @@ extern char* ast_getformatname(int format);
* \param n size of buf (bytes)
* \param format the format (combined IDs of codecs)
* Prints a list of readable codec names corresponding to "format".
* ex: for format=AST_FORMAT_GSM|AST_FORMAT_SPEEX|AST_FORMAT_ILBC it will return "0x602(GSM|SPEEX|ILBC)"
* ex: for format=AST_FORMAT_GSM|AST_FORMAT_SPEEX|AST_FORMAT_ILBC it will return "0x602 (GSM|SPEEX|ILBC)"
* \return The return value is buf.
*/
extern char* ast_getformatname_multiple(char *buf, unsigned n, int format);
extern char* ast_getformatname_multiple(char *buf, size_t size, int format);
/*!
* \param name string of format
@@ -364,6 +368,8 @@ extern int ast_best_codec(int fmts);
struct ast_smoother;
extern struct ast_format_list *ast_get_format_list_index(int index);
extern struct ast_format_list *ast_get_format_list(size_t *size);
extern struct ast_smoother *ast_smoother_new(int bytes);
extern void ast_smoother_set_flags(struct ast_smoother *smoother, int flags);
extern int ast_smoother_get_flags(struct ast_smoother *smoother);
@@ -374,6 +380,32 @@ extern struct ast_frame *ast_smoother_read(struct ast_smoother *s);
extern void ast_frame_dump(char *name, struct ast_frame *f, char *prefix);
/* Initialize a codec preference to "no preference" */
extern void ast_codec_pref_init(struct ast_codec_pref *pref);
/* Codec located at a particular place in the preference index */
extern int ast_codec_pref_index(struct ast_codec_pref *pref, int index);
/* Remove a codec from a preference list */
extern void ast_codec_pref_remove(struct ast_codec_pref *pref, int format);
/* Append a codec to a preference list, removing it first if it was already there */
extern int ast_codec_pref_append(struct ast_codec_pref *pref, int format);
/* Select the best format according to preference list from supplied options.
If "find_best" is non-zero then if nothing is found, the "Best" format of
the format list is selected, otherwise 0 is returned. */
extern int ast_codec_choose(struct ast_codec_pref *pref, int formats, int find_best);
/* Parse an "allow" or "deny" line and update the mask and pref if provided */
extern void ast_parse_allow_deny(struct ast_codec_pref *pref, int *mask, char *list, int allowing);
/* Dump codec preference list into a string */
extern int ast_codec_pref_string(struct ast_codec_pref *pref, char *buf, size_t size);
/* Shift a codec preference list up or down 65 bytes so that it becomes an ASCII string */
extern void ast_codec_pref_shift(struct ast_codec_pref *pref, char *buf, size_t size, int right);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif