ISOMChannel *isor_get_channel(ISOMReader *reader, GF_FilterPid *pid)
{
	u32 i=0;
	ISOMChannel *ch;
	while ((ch = (ISOMChannel *)gf_list_enum(reader->channels, &i))) {
		if (ch->pid == pid) return ch;
	}
	return NULL;
}
ISOMChannel *isor_get_channel(ISOMReader *reader, GF_FilterPid *pid)
{
	u32 i=0;
	ISOMChannel *ch;
	while ((ch = (ISOMChannel *)gf_list_enum(reader->channels, &i))) {
		if (ch->pid == pid) return ch;
	}
	return NULL;
}