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authorzuul <zuul@gerrit.asterisk.org>2016-11-16 23:20:04 -0600
committerGerrit Code Review <gerrit2@gerrit.digium.api>2016-11-16 23:20:04 -0600
commit8fbdedb36efc570a84e77b4efdc82c8210bf7c86 (patch)
tree52e94f412fca0e526f51bc90a27676c0478373e1
parent97b2ba472d64147fc7790126bda95c9f63445c66 (diff)
parentdc8f99ee27bd9c2ed2524bf01825ac65234f59ba (diff)
Merge "res_format_attr_opus: Fix fmtp generation."
-rw-r--r--res/res_format_attr_opus.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/res/res_format_attr_opus.c b/res/res_format_attr_opus.c
index a3e48e3de..81a07a1f6 100644
--- a/res/res_format_attr_opus.c
+++ b/res/res_format_attr_opus.c
@@ -156,7 +156,8 @@ static struct ast_format *opus_parse_sdp_fmtp(const struct ast_format *format, c
static void opus_generate_sdp_fmtp(const struct ast_format *format, unsigned int payload, struct ast_str **str)
{
struct opus_attr *attr = ast_format_get_attribute_data(format);
- int size;
+ int base_fmtp_size;
+ int original_size;
if (!attr) {
/*
@@ -167,7 +168,8 @@ static void opus_generate_sdp_fmtp(const struct ast_format *format, unsigned int
attr = &default_opus_attr;
}
- size = ast_str_append(str, 0, "a=fmtp:%u ", payload);
+ original_size = ast_str_strlen(*str);
+ base_fmtp_size = ast_str_append(str, 0, "a=fmtp:%u ", payload);
if (CODEC_OPUS_DEFAULT_SAMPLE_RATE != attr->maxplayrate) {
ast_str_append(str, 0, "%s=%d;",
@@ -209,8 +211,8 @@ static void opus_generate_sdp_fmtp(const struct ast_format *format, unsigned int
CODEC_OPUS_ATTR_DTX, attr->dtx);
}
- if (size == ast_str_strlen(*str)) {
- ast_str_reset(*str);
+ if (base_fmtp_size == ast_str_strlen(*str) - original_size) {
+ ast_str_truncate(*str, original_size);
} else {
ast_str_truncate(*str, -1);
ast_str_append(str, 0, "\r\n");