int
sdp_message_a_attribute_add (sdp_message_t * sdp, int pos_media,
char *att_field, char *att_value)
{
int i;
sdp_media_t *med;
sdp_attribute_t *attr;
if (sdp == NULL)
return -1;
if ((pos_media != -1) && (osip_list_size (&sdp->m_medias) < pos_media + 1))
return -1;
i = sdp_attribute_init (&attr);
if (i != 0)
return -1;
attr->a_att_field = att_field;
attr->a_att_value = att_value;
if (pos_media == -1)
{
osip_list_add (&sdp->a_attributes, attr, -1);
return 0;
}
med = (sdp_media_t *) osip_list_get (&sdp->m_medias, pos_media);
osip_list_add (&med->a_attributes, attr, -1);
return 0;
}
int test_add_codec(struct osip_rfc3264 *cnf, int codec_type,
int payload, char *attribute)
{
sdp_media_t *med;
sdp_attribute_t *attr;
char *tmp;
int i;
if (payload>127) return -1;
if (attribute==NULL || strlen(attribute)==0) return -1;
i = sdp_media_init(&med);
if (i!=0) goto error;
tmp = malloc(4);
snprintf(tmp, 3, "%i", payload);
med->m_proto = strdup("RTP/AVP");
osip_list_add(med->m_payloads, tmp, -1);
i = sdp_attribute_init (&attr);
if (i != 0)
return -1;
attr->a_att_field = strdup("rtpmap");
attr->a_att_value = strdup(attribute);
osip_list_add (med->a_attributes, attr, -1);
switch(codec_type)
{
case AUDIO_CODEC:
med->m_media = strdup("audio");
osip_rfc3264_add_audio_media(cnf, med, -1);
break;
case VIDEO_CODEC:
med->m_media = strdup("video");
osip_rfc3264_add_video_media(cnf, med, -1);
break;
}
return 0;
error:
return -1;
}
static int
sdp_message_parse_a (sdp_message_t * sdp, char *buf, char **next)
{
char *equal;
char *crlf;
char *tmp;
char *tmp_next;
int i;
sdp_attribute_t *a_attribute;
char *colon;
*next = buf;
equal = buf;
while ((*equal != '=') && (*equal != '\0'))
equal++;
if (*equal == '\0')
return ERR_ERROR;
/* check if header is "a" */
if (equal[-1] != 'a')
return ERR_DISCARD;
crlf = equal + 1;
while ((*crlf != '\r') && (*crlf != '\n') && (*crlf != '\0'))
crlf++;
if (*crlf == '\0')
return ERR_ERROR;
if (crlf == equal + 1)
return ERR_ERROR; /* a=\r ?? bad header */
tmp = equal + 1;
i = sdp_attribute_init (&a_attribute);
if (i != 0)
return ERR_ERROR;
/* a=att-field[:att-value] */
/* is there any att-value? */
colon = strchr (equal + 1, ':');
if ((colon != NULL) && (colon < crlf))
{
/* att-field is alpha-numeric */
i =
__osip_set_next_token (&(a_attribute->a_att_field), tmp, ':',
&tmp_next);
if (i != 0)
{
sdp_attribute_free (a_attribute);
return -1;
}
tmp = tmp_next;
i =
__osip_set_next_token (&(a_attribute->a_att_value), tmp, '\r',
&tmp_next);
if (i != 0)
{
i =
__osip_set_next_token (&(a_attribute->a_att_value), tmp, '\n',
&tmp_next);
if (i != 0)
{
sdp_attribute_free (a_attribute);
return -1;
}
}
}
else
{
i =
__osip_set_next_token (&(a_attribute->a_att_field), tmp, '\r',
&tmp_next);
if (i != 0)
{
i =
__osip_set_next_token (&(a_attribute->a_att_field), tmp, '\n',
&tmp_next);
if (i != 0)
{
sdp_attribute_free (a_attribute);
return -1;
}
}
}
/* add the attribute at the correct place:
if there is no media line yet, then the "a=" is the
global one.
*/
i = osip_list_size (sdp->m_medias);
if (i == 0)
osip_list_add (sdp->a_attributes, a_attribute, -1);
else
{
sdp_media_t *last_sdp_media =
(sdp_media_t *) osip_list_get (sdp->m_medias, i - 1);
osip_list_add (last_sdp_media->a_attributes, a_attribute, -1);
}
if (crlf[1] == '\n')
*next = crlf + 2;
else
*next = crlf + 1;
return WF;
}
