//use this function to encode a standalone descriptor
//the desc will be formatted with tag and size field
GF_EXPORT
GF_Err gf_odf_desc_write_bs(GF_Descriptor *desc, GF_BitStream *bs)
{
GF_Err e;
if (!desc || !bs) return GF_BAD_PARAM;
//then encode our desc...
e = gf_odf_write_descriptor(bs, desc);
if (e) {
gf_bs_del(bs);
return e;
}
return GF_OK;
}
GF_Err gf_odf_write_descriptor_list_filter(GF_BitStream *bs, GF_List *descList, u8 only_tag)
{
GF_Err e;
u32 count, i;
GF_Descriptor *tmp;
if (! descList) return GF_OK;
count = gf_list_count(descList);
for ( i = 0; i < count; i++ ) {
tmp = (GF_Descriptor*)gf_list_get(descList, i);
if (tmp && (tmp->tag==only_tag) ) {
e = gf_odf_write_descriptor(bs, tmp);
if (e) return e;
}
}
return GF_OK;
}
GF_Err gf_odf_write_ipmp_update(GF_BitStream *bs, GF_IPMPUpdate *ipmpUp)
{
GF_Err e;
GF_Descriptor *tmp;
u32 size, i;
if (!ipmpUp) return GF_BAD_PARAM;
e = gf_odf_size_ipmp_update(ipmpUp, &size);
if (e) return e;
e = gf_odf_write_base_descriptor(bs, ipmpUp->tag, size);
if (e) return e;
i = 0;
while ((tmp = (GF_Descriptor *)gf_list_enum(ipmpUp->IPMPDescList, &i))) {
e = gf_odf_write_descriptor(bs, tmp);
if (e) return e;
}
//OD commands are aligned
gf_bs_align(bs);
return GF_OK;
}
GF_Err gf_odf_write_od_update(GF_BitStream *bs, GF_ODUpdate *odUp)
{
GF_Err e;
GF_Descriptor *tmp;
u32 size, i;
if (!odUp) return GF_BAD_PARAM;
e = gf_odf_size_od_update(odUp, &size);
if (e) return e;
gf_odf_write_base_descriptor(bs, odUp->tag, size);
if (e) return e;
i = 0;
while ((tmp = (GF_Descriptor *)gf_list_enum(odUp->objectDescriptors, &i))) {
e = gf_odf_write_descriptor(bs, tmp);
if (e) return e;
}
//OD commands are aligned
gf_bs_align(bs);
return GF_OK;
}
GF_Err gf_odf_write_esd_update(GF_BitStream *bs, GF_ESDUpdate *esdUp)
{
GF_Descriptor *tmp;
GF_Err e;
u32 size, i;
if (!esdUp) return GF_BAD_PARAM;
e = gf_odf_size_esd_update(esdUp, &size);
if (e) return e;
e = gf_odf_write_base_descriptor(bs, esdUp->tag, size);
if (e) return e;
gf_bs_write_int(bs, esdUp->ODID, 10);
i = 0;
while ((tmp = (GF_Descriptor *)gf_list_enum(esdUp->ESDescriptors, &i))) {
e = gf_odf_write_descriptor(bs, tmp);
if (e) return e;
}
//OD commands are aligned
gf_bs_align(bs);
return GF_OK;
}