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/* $Header: /pjproject/pjmedia/src/pjmedia/codec.c 3 4/17/05 11:59a Bennylp $ */
#include <pjmedia/codec.h>
#include <pj/pool.h>
#include <pj/string.h>
#include <pj/log.h>
#define THIS_FILE "codec.c"
static void enum_all_codecs (pj_codec_mgr *cm)
{
pj_codec_factory *cf;
cf = cm->factory_list.next;
cm->codec_cnt = 0;
while (cf != &cm->factory_list) {
pj_codec_id temp[PJ_CODEC_MGR_MAX_CODECS];
int i, cnt;
cnt = cf->op->enum_codecs (cf, PJ_CODEC_MGR_MAX_CODECS, temp);
if (cnt > PJ_CODEC_MGR_MAX_CODECS) {
pj_assert(0);
PJ_LOG(4, (THIS_FILE, "Too many codecs reported by factory"));
cnt = PJ_CODEC_MGR_MAX_CODECS;
}
for (i=0; i<cnt && cm->codec_cnt < PJ_CODEC_MGR_MAX_CODECS; ++i) {
cm->codecs[cm->codec_cnt++] = temp[i];
}
cf = cf->next;
}
}
PJ_DEF(pj_status_t) pj_codec_mgr_init (pj_codec_mgr *mgr)
{
pj_list_init (&mgr->factory_list);
mgr->codec_cnt = 0;
return 0;
}
PJ_DEF(pj_status_t) pj_codec_mgr_register_factory (pj_codec_mgr *mgr,
pj_codec_factory *factory)
{
pj_list_insert_before (&mgr->factory_list, factory);
enum_all_codecs (mgr);
return 0;
}
PJ_DEF(void) pj_codec_mgr_unregister_factory (pj_codec_mgr *mgr, pj_codec_factory *factory)
{
PJ_UNUSED_ARG(mgr)
pj_list_erase(factory);
enum_all_codecs (mgr);
}
PJ_DEF(unsigned)
pj_codec_mgr_enum_codecs (pj_codec_mgr *mgr, unsigned count, const pj_codec_id *codecs[])
{
unsigned i;
if (count > mgr->codec_cnt)
count = mgr->codec_cnt;
for (i=0; i<count; ++i)
codecs[i] = &mgr->codecs[i];
return mgr->codec_cnt;
}
PJ_DEF(pj_codec*) pj_codec_mgr_alloc_codec (pj_codec_mgr *mgr, const struct pj_codec_id *id)
{
pj_codec_factory *factory = mgr->factory_list.next;
while (factory != &mgr->factory_list) {
if ( (*factory->op->match_id)(factory, id) == 0 ) {
pj_codec *codec = (*factory->op->alloc_codec)(factory, id);
if (codec != NULL)
return codec;
}
factory = factory->next;
}
return NULL;
}
PJ_DEF(void) pj_codec_mgr_dealloc_codec (pj_codec_mgr *mgr, pj_codec *codec)
{
PJ_UNUSED_ARG(mgr)
(*codec->factory->op->dealloc_codec)(codec->factory, codec);
}
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