/** Match codec list with specified capabilities */
MPF_DECLARE(apt_bool_t) mpf_codec_list_match(mpf_codec_list_t *codec_list, const mpf_codec_capabilities_t *capabilities)
{
int i;
mpf_codec_descriptor_t *descriptor;
apt_bool_t status = FALSE;
if(!capabilities) {
return FALSE;
}
for(i=0; i<codec_list->descriptor_arr->nelts; i++) {
descriptor = &APR_ARRAY_IDX(codec_list->descriptor_arr,i,mpf_codec_descriptor_t);
if(descriptor->enabled == FALSE) continue;
/* match capabilities */
if(mpf_codec_capabilities_attribs_find(capabilities,descriptor)) {
/* at least one codec descriptor matches */
status = TRUE;
}
else {
descriptor->enabled = FALSE;
}
}
return status;
}
/** Modify codec list according to capabilities specified */
MPF_DECLARE(apt_bool_t) mpf_codec_list_modify(mpf_codec_list_t *codec_list, const mpf_codec_capabilities_t *capabilities)
{
int i;
mpf_codec_descriptor_t *descriptor;
if(!capabilities) {
return FALSE;
}
for(i=0; i<codec_list->descriptor_arr->nelts; i++) {
descriptor = &APR_ARRAY_IDX(codec_list->descriptor_arr,i,mpf_codec_descriptor_t);
/* match capabilities */
if(!mpf_codec_capabilities_attribs_find(capabilities,descriptor)) {
descriptor->enabled = FALSE;
}
}
return TRUE;
}
/** Create codec descriptor by capabilities */
MPF_DECLARE(mpf_codec_descriptor_t*) mpf_codec_descriptor_create_by_capabilities(const mpf_codec_capabilities_t *capabilities, const mpf_codec_descriptor_t *peer, apr_pool_t *pool)
{
mpf_codec_descriptor_t *descriptor;
mpf_codec_attribs_t *attribs = NULL;
if(capabilities && peer) {
attribs = mpf_codec_capabilities_attribs_find(capabilities,peer);
}
if(!attribs) {
return mpf_codec_lpcm_descriptor_create(8000,1,pool);
}
descriptor = mpf_codec_descriptor_create(pool);
*descriptor = *peer;
if(apt_string_compare(&peer->name,&attribs->name) == FALSE) {
descriptor->payload_type = RTP_PT_UNKNOWN;
descriptor->name = attribs->name;
}
return descriptor;
}