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handle AST_FORMAT_SLINEAR endianness properly on big-endian systems (bug #3865)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5373 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2005-04-03 22:57:18 +00:00
parent 7e3e619497
commit b96ae79baa
6 changed files with 80 additions and 11 deletions
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23
include/asterisk/frame.h
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@@ -301,6 +301,19 @@ int ast_fr_fdwrite(int fd, struct ast_frame *frame);
*/
int ast_fr_fdhangup(int fd);
void ast_swapcopy_samples(void *dst, void *src, int samples);
/* Helpers for byteswapping native samples to/from
little-endian and big-endian. */
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define ast_frame_byteswap_le(fr) do { ; } while(0)
#define ast_frame_byteswap_be(fr) do { struct ast_frame *__f = (fr); ast_swapcopy_samples(__f->data, __f->data, __f->samples); } while(0)
#else
#define ast_frame_byteswap_le(fr) do { struct ast_frame *__f = (fr); ast_swapcopy_samples(__f->data, __f->data, __f->samples); } while(0)
#define ast_frame_byteswap_be(fr) do { ; } while(0)
#endif
/*! Get the name of a format */
/*!
* \param format id of format
@@ -347,8 +360,16 @@ extern void ast_smoother_set_flags(struct ast_smoother *smoother, int flags);
extern int ast_smoother_get_flags(struct ast_smoother *smoother);
extern void ast_smoother_free(struct ast_smoother *s);
extern void ast_smoother_reset(struct ast_smoother *s, int bytes);
extern int ast_smoother_feed(struct ast_smoother *s, struct ast_frame *f);
extern int __ast_smoother_feed(struct ast_smoother *s, struct ast_frame *f, int swap);
extern struct ast_frame *ast_smoother_read(struct ast_smoother *s);
#define ast_smoother_feed(s,f) do { __ast_smoother_feed(s, f, 0); } while(0)
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define ast_smoother_feed_be(s,f) do { __ast_smoother_feed(s, f, 1); } while(0)
#define ast_smoother_feed_le(s,f) do { __ast_smoother_feed(s, f, 0); } while(0)
#else
#define ast_smoother_feed_be(s,f) do { __ast_smoother_feed(s, f, 0); } while(0)
#define ast_smoother_feed_le(s,f) do { __ast_smoother_feed(s, f, 1); } while(0)
#endif
extern void ast_frame_dump(char *name, struct ast_frame *f, char *prefix);