void
SipccSdpAttributeList::LoadFmtp(sdp_t* sdp, uint16_t level)
{
auto fmtps = MakeUnique<SdpFmtpAttributeList>();
for (uint16_t i = 1; i < UINT16_MAX; ++i) {
sdp_attr_t* attr = sdp_find_attr(sdp, level, 0, SDP_ATTR_FMTP, i);
if (!attr) {
break;
}
sdp_fmtp_t* fmtp = &(attr->attr.fmtp);
// Get the payload type
std::stringstream osPayloadType;
// payload_num is the number in the fmtp attribute, verbatim
osPayloadType << fmtp->payload_num;
// Get parsed form of parameters, if supported
UniquePtr<SdpFmtpAttributeList::Parameters> parameters;
rtp_ptype codec = sdp_get_known_payload_type(sdp, level, fmtp->payload_num);
switch (codec) {
case RTP_H264_P0:
case RTP_H264_P1: {
SdpFmtpAttributeList::H264Parameters* h264Parameters(
new SdpFmtpAttributeList::H264Parameters);
sstrncpy(h264Parameters->sprop_parameter_sets, fmtp->parameter_sets,
sizeof(h264Parameters->sprop_parameter_sets));
h264Parameters->level_asymmetry_allowed =
!!(fmtp->level_asymmetry_allowed);
h264Parameters->packetization_mode = fmtp->packetization_mode;
sscanf(fmtp->profile_level_id, "%x", &h264Parameters->profile_level_id);
h264Parameters->max_mbps = fmtp->max_mbps;
h264Parameters->max_fs = fmtp->max_fs;
h264Parameters->max_cpb = fmtp->max_cpb;
h264Parameters->max_dpb = fmtp->max_dpb;
h264Parameters->max_br = fmtp->max_br;
parameters.reset(h264Parameters);
} break;
case RTP_VP9: {
SdpFmtpAttributeList::VP8Parameters* vp9Parameters(
new SdpFmtpAttributeList::VP8Parameters(
SdpRtpmapAttributeList::kVP9));
vp9Parameters->max_fs = fmtp->max_fs;
vp9Parameters->max_fr = fmtp->max_fr;
parameters.reset(vp9Parameters);
} break;
case RTP_VP8: {
SdpFmtpAttributeList::VP8Parameters* vp8Parameters(
new SdpFmtpAttributeList::VP8Parameters(
SdpRtpmapAttributeList::kVP8));
vp8Parameters->max_fs = fmtp->max_fs;
vp8Parameters->max_fr = fmtp->max_fr;
parameters.reset(vp8Parameters);
} break;
case RTP_RED: {
SdpFmtpAttributeList::RedParameters* redParameters(
new SdpFmtpAttributeList::RedParameters);
for (int i = 0;
i < SDP_FMTP_MAX_REDUNDANT_ENCODINGS && fmtp->redundant_encodings[i];
++i) {
redParameters->encodings.push_back(fmtp->redundant_encodings[i]);
}
parameters.reset(redParameters);
} break;
case RTP_OPUS: {
SdpFmtpAttributeList::OpusParameters* opusParameters(
new SdpFmtpAttributeList::OpusParameters);
opusParameters->maxplaybackrate = fmtp->maxplaybackrate;
opusParameters->stereo = fmtp->stereo;
opusParameters->useInBandFec = fmtp->useinbandfec;
parameters.reset(opusParameters);
} break;
default: {
}
}
fmtps->PushEntry(osPayloadType.str(), Move(parameters));
}
if (!fmtps->mFmtps.empty()) {
SetAttribute(fmtps.release());
}
}
void
SipccSdpAttributeList::LoadFmtp(sdp_t* sdp, uint16_t level)
{
auto fmtps = MakeUnique<SdpFmtpAttributeList>();
for (uint16_t i = 1; i < UINT16_MAX; ++i) {
sdp_attr_t* attr = sdp_find_attr(sdp, level, 0, SDP_ATTR_FMTP, i);
if (!attr) {
break;
}
sdp_fmtp_t* fmtp = &(attr->attr.fmtp);
// Get the payload type
std::stringstream osPayloadType;
// payload_num is the number in the fmtp attribute, verbatim
osPayloadType << fmtp->payload_num;
// Get the serialized form of the parameters
flex_string fs;
flex_string_init(&fs);
// Very lame, but we need direct access so we can get the serialized form
sdp_result_e sdpres = sdp_build_attr_fmtp_params(sdp, fmtp, &fs);
if (sdpres != SDP_SUCCESS) {
flex_string_free(&fs);
continue;
}
std::string paramsString(fs.buffer);
flex_string_free(&fs);
// Get parsed form of parameters, if supported
UniquePtr<SdpFmtpAttributeList::Parameters> parameters;
rtp_ptype codec = sdp_get_known_payload_type(sdp, level, fmtp->payload_num);
switch (codec) {
case RTP_H264_P0:
case RTP_H264_P1: {
SdpFmtpAttributeList::H264Parameters* h264Parameters(
new SdpFmtpAttributeList::H264Parameters);
sstrncpy(h264Parameters->sprop_parameter_sets, fmtp->parameter_sets,
sizeof(h264Parameters->sprop_parameter_sets));
h264Parameters->level_asymmetry_allowed =
!!(fmtp->level_asymmetry_allowed);
h264Parameters->packetization_mode = fmtp->packetization_mode;
// Copied from VcmSIPCCBinding
#ifdef _WIN32
sscanf_s(fmtp->profile_level_id, "%x",
&h264Parameters->profile_level_id, sizeof(unsigned*));
#else
sscanf(fmtp->profile_level_id, "%xu",
&h264Parameters->profile_level_id);
#endif
h264Parameters->max_mbps = fmtp->max_mbps;
h264Parameters->max_fs = fmtp->max_fs;
h264Parameters->max_cpb = fmtp->max_cpb;
h264Parameters->max_dpb = fmtp->max_dpb;
h264Parameters->max_br = fmtp->max_br;
parameters.reset(h264Parameters);
} break;
case RTP_VP9: {
SdpFmtpAttributeList::VP8Parameters* vp9Parameters(
new SdpFmtpAttributeList::VP8Parameters(
SdpRtpmapAttributeList::kVP9));
vp9Parameters->max_fs = fmtp->max_fs;
vp9Parameters->max_fr = fmtp->max_fr;
parameters.reset(vp9Parameters);
} break;
case RTP_VP8: {
SdpFmtpAttributeList::VP8Parameters* vp8Parameters(
new SdpFmtpAttributeList::VP8Parameters(
SdpRtpmapAttributeList::kVP8));
vp8Parameters->max_fs = fmtp->max_fs;
vp8Parameters->max_fr = fmtp->max_fr;
parameters.reset(vp8Parameters);
} break;
default: {
}
}
fmtps->PushEntry(osPayloadType.str(), paramsString, Move(parameters));
}
if (!fmtps->mFmtps.empty()) {
SetAttribute(fmtps.release());
}
}
