HEVC: webrtc support hevc by parse sdp phase in safari.

trunk/src/app/srs_app_rtc_conn.cpp

@@ -2674,6 +2674,92 @@ srs_error_t SrsRtcConnection::negotiate_publish_capability(SrsRtcUserConfig* ruc
  track_desc->set_codec_payload((SrsCodecPayload*)video_payload);
  break;
  }
+ } else if (remote_media_desc.is_video() && ruc->codec_ == "hevc") {
+ srs_trace("remote_media_desc.is_video");
+ std::vector<SrsMediaPayloadType> payloads = remote_media_desc.find_media_with_encoding_name("H265");
+ if (payloads.empty()) {
+ return srs_error_new(ERROR_RTC_SDP_EXCHANGE, "no found valid H.265 payload type");
+ }
+
+ std::deque<SrsMediaPayloadType> backup_payloads;
+ for (int j = 0; j < (int)payloads.size(); j++) {
+ const SrsMediaPayloadType& payload = payloads.at(j);
+ if (payload.format_specific_param_.empty()) {
+ backup_payloads.push_front(payload);
+ continue;
+ }
+
+ H264SpecificParam h264_param;
+ if ((err = srs_parse_h264_fmtp(payload.format_specific_param_, h264_param)) != srs_success) {
+ srs_error_reset(err); continue;
+ }
+
+ // If not exists 42e01f, we pick up any profile such as 42001f.
+ bool profile_matched = (!has_42e01f || h264_param.profile_level_id == "42e01f");
+
+ // Try to pick the "best match" H.264 payload type.
+ if (profile_matched && h264_param.packetization_mode == "1" && h264_param.level_asymmerty_allow == "1") {
+ // if the playload is opus, and the encoding_param_ is channel
+ SrsVideoPayload* video_payload = new SrsVideoPayload(payload.payload_type_, payload.encoding_name_, payload.clock_rate_);
+ video_payload->set_h264_param_desc(payload.format_specific_param_);
+
+ // TODO: FIXME: Only support some transport algorithms.
+ for (int k = 0; k < (int)payload.rtcp_fb_.size(); ++k) {
+ const string& rtcp_fb = payload.rtcp_fb_.at(k);
+
+ if (nack_enabled) {
+ if (rtcp_fb == "nack" || rtcp_fb == "nack pli") {
+ video_payload->rtcp_fbs_.push_back(rtcp_fb);
+ }
+ }
+
+ if (twcc_enabled && remote_twcc_id) {
+ if (rtcp_fb == "transport-cc") {
+ video_payload->rtcp_fbs_.push_back(rtcp_fb);
+ }
+ }
+ }
+
+ track_desc->type_ = "video";
+ track_desc->set_codec_payload((SrsCodecPayload*)video_payload);
+ // Only choose first match H.265 payload type.
+ break;
+ }
+
+ backup_payloads.push_back(payload);
+ }
+
+ // Try my best to pick at least one media payload type.
+ if (!track_desc->media_ && !backup_payloads.empty()) {
+ const SrsMediaPayloadType& payload = backup_payloads.front();
+
+ // if the playload is opus, and the encoding_param_ is channel
+ SrsVideoPayload* video_payload = new SrsVideoPayload(payload.payload_type_, payload.encoding_name_, payload.clock_rate_);
+
+ // TODO: FIXME: Only support some transport algorithms.
+ for (int k = 0; k < (int)payload.rtcp_fb_.size(); ++k) {
+ const string& rtcp_fb = payload.rtcp_fb_.at(k);
+
+ if (nack_enabled) {
+ if (rtcp_fb == "nack" || rtcp_fb == "nack pli") {
+ video_payload->rtcp_fbs_.push_back(rtcp_fb);
+ }
+ }
+
+ if (twcc_enabled && remote_twcc_id) {
+ if (rtcp_fb == "transport-cc") {
+ video_payload->rtcp_fbs_.push_back(rtcp_fb);
+ }
+ }
+ }
+
+ track_desc->type_ = "video";
+ track_desc->set_codec_payload((SrsCodecPayload*)video_payload);
+ srs_warn("choose backup H.265 payload type=%d", payload.payload_type_);
+ }
+
+ // TODO: FIXME: Support RRTR?
+ //local_media_desc.payload_types_.back().rtcp_fb_.push_back("rrtr");
  } else if (remote_media_desc.is_video()) {
  std::vector<SrsMediaPayloadType> payloads = remote_media_desc.find_media_with_encoding_name("H264");
  if (payloads.empty()) {
@@ -3020,6 +3106,25 @@ srs_error_t SrsRtcConnection::negotiate_play_capability(SrsRtcUserConfig* ruc, s
  // @see https://bugs.chromium.org/p/webrtc/issues/detail?id=13166
  track_descs = source->get_track_desc("video", "AV1X");
  }
+ } else if (remote_media_desc.is_video() && ruc->codec_ == "hevc") {
+ std::vector<SrsMediaPayloadType> payloads = remote_media_desc.find_media_with_encoding_name("H265");
+ if (payloads.empty()) {
+ return srs_error_new(ERROR_RTC_SDP_EXCHANGE, "no valid found h265 payload type");
+ }
+
+ remote_payload = payloads.at(0);
+ for (int j = 0; j < (int)payloads.size(); j++) {
+ const SrsMediaPayloadType& payload = payloads.at(j);
+
+ // If exists 42e01f profile, choose it; otherwise, use the first payload.
+ // TODO: FIME: Should check packetization-mode=1 also.
+ if (!has_42e01f || srs_sdp_has_h264_profile(payload, "42e01f")) {
+ remote_payload = payload;
+ break;
+ }
+ }
+
+ track_descs = source->get_track_desc("video", "H265");
  } else if (remote_media_desc.is_video()) {
  // TODO: check opus format specific param
  vector<SrsMediaPayloadType> payloads = remote_media_desc.find_media_with_encoding_name("H264");