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/**
* @file avcodec/sdp.c Video codecs using libavcodec -- SDP functions
*
* Copyright (C) 2010 Alfred E. Heggestad
*/
#include <re.h>
#include <baresip.h>
#include <libavcodec/avcodec.h>
#include "avcodec.h"
static const uint8_t h264_level_idc = 0x1f;
uint32_t h264_packetization_mode(const char *fmtp)
{
struct pl pl, mode;
if (!fmtp)
return 0;
pl_set_str(&pl, fmtp);
if (fmt_param_get(&pl, "packetization-mode", &mode))
return pl_u32(&mode);
return 0;
}
int avcodec_h264_fmtp_enc(struct mbuf *mb, const struct sdp_format *fmt,
bool offer, void *arg)
{
struct vidcodec *vc = arg;
const uint8_t profile_idc = 0x42; /* baseline profile */
const uint8_t profile_iop = 0xe0;
(void)offer;
if (!mb || !fmt || !vc)
return 0;
return mbuf_printf(mb, "a=fmtp:%s"
" %s"
";profile-level-id=%02x%02x%02x"
"\r\n",
fmt->id, vc->variant,
profile_idc, profile_iop, h264_level_idc);
}
bool avcodec_h264_fmtp_cmp(const char *lfmtp, const char *rfmtp, void *arg)
{
const struct vidcodec *vc = arg;
(void)lfmtp;
if (!vc)
return false;
return h264_packetization_mode(vc->variant) ==
h264_packetization_mode(rfmtp);
}
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