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use more efficient code to produce non-codec-capability list (bug #3960) 

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5421 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming 2005-04-06 03:43:59 +00:00
parent 307f862c23
commit 228f03ae87
1 changed files with 18 additions and 4 deletions
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22
rtp.c
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@ -853,21 +853,35 @@ char* ast_rtp_lookup_mime_subtype(const int isAstFormat, const int code) {
char *ast_rtp_lookup_mime_multiple(char *buf, int size, const int capability, const int isAstFormat)
{
int format;
unsigned len;
char *end = buf;
char *start = buf;
if (!buf || !size)
return NULL;
snprintf(buf, size, "0x%x (", capability);
snprintf(end, size, "0x%x (", capability);
len = strlen(end);
end += len;
size -= len;
start = end;
for (format = 1; format < AST_RTP_MAX; format <<= 1) {
if (capability & format) {
const char *name = ast_rtp_lookup_mime_subtype(isAstFormat, format);
snprintf(buf + strlen(buf), size - strlen(buf), "%s|", name);
snprintf(end, size, "%s|", name);
len = strlen(end);
end += len;
size -= len;
}
}
if (!ast_strlen_zero(buf))
buf[strlen(buf)] = ')';
if (start == end)
snprintf(start, size, "nothing)");
else if (size > 1)
*(end -1) = ')';
return buf;
}