void vidrec_init_once(int width, int height, int framerate, int bitrate, enum AVCodecID codec_id, struct mbuf *sps, struct mbuf *pps)
{
if (int_initialized) {
return;
}
int_width = width;
int_height = height;
int_framerate = framerate;
int_bitrate = bitrate;
int_codec_id = codec_id;
int_sps = mbuf_alloc_ref(sps);
int_pps = mbuf_alloc_ref(pps);
int_was_key_frame = false;
cmd_register(cmdv, ARRAY_SIZE(cmdv));
int_initialized = 1;
debug("Video recording is initialized\n");
}
/**
* Decode an RTCP Payload-Specific Feedback Message
*
* @param mb Buffer to decode
* @param msg RTCP Message to decode into
*
* @return 0 for success, otherwise errorcode
*/
int rtcp_psfb_decode(struct mbuf *mb, struct rtcp_msg *msg)
{
size_t i, sz;
if (!msg)
return EINVAL;
switch (msg->hdr.count) {
case RTCP_PSFB_PLI:
/* no params */
break;
case RTCP_PSFB_SLI:
sz = msg->r.fb.n * sizeof(*msg->r.fb.fci.sliv);
msg->r.fb.fci.sliv = mem_alloc(sz, NULL);
if (!msg->r.fb.fci.sliv)
return ENOMEM;
if (mbuf_get_left(mb) < msg->r.fb.n * SLI_SIZE)
return EBADMSG;
for (i=0; i<msg->r.fb.n; i++) {
const uint32_t v = ntohl(mbuf_read_u32(mb));
msg->r.fb.fci.sliv[i].first = v>>19 & 0x1fff;
msg->r.fb.fci.sliv[i].number = v>> 6 & 0x1fff;
msg->r.fb.fci.sliv[i].picid = v>> 0 & 0x003f;
}
break;
case RTCP_PSFB_AFB:
sz = msg->r.fb.n * 4;
if (mbuf_get_left(mb) < sz)
return EBADMSG;
msg->r.fb.fci.afb = mbuf_alloc_ref(mb);
if (!msg->r.fb.fci.afb)
return ENOMEM;
msg->r.fb.fci.afb->end = msg->r.fb.fci.afb->pos + sz;
mbuf_advance(mb, sz);
break;
default:
DEBUG_NOTICE("unknown PSFB fmt %d\n", msg->hdr.count);
break;
}
return 0;
}
