Added only video h265 with new imp

Development/nmos/video_h265.cpp

@@ -0,0 +1,95 @@
+#include "nmos/video_h265.h"
+#include "nmos/json_fields.h"
+
+namespace nmos
+{
+
+    // Construct additional "video/H265" parameters from the IS-04 resources
+    video_H265_parameters make_video_H265_parameters(const web::json::value& node, const web::json::value& source, const web::json::value& flow, const web::json::value& sender, const utility::string_t& sprop_parameter_sets)
+    {
+        video_H265_parameters params;
+
+        params.profile_id = nmos::fields::profile_id(flow);
+
+        params.level_id = nmos::fields::level_id(flow);
+
+        return params;
+    }
+
+    // Construct SDP parameters for "video/H265", with sensible defaults for unspecified fields
+    sdp_parameters make_video_H265_sdp_parameters(const utility::string_t& session_name, const video_H265_parameters& params, uint64_t payload_type, const std::vector<utility::string_t>& media_stream_ids, const std::vector<sdp_parameters::ts_refclk_t>& ts_refclk)
+    {
+        // a=rtpmap:<payload type> <encoding name>/<clock rate>[/<encoding parameters>]
+        sdp_parameters::rtpmap_t rtpmap = { payload_type, U("H265"), 90000 };
+
+        // a=fmtp:<format> <format specific parameters>
+        // for simplicity, following the order of parameters given in VSF TR-05:2017
+        // See https://tools.ietf.org/html/rfc4566#section-6
+        sdp_parameters::fmtp_t fmtp = {
+            { sdp::fields::profile_id, utility::ostringstreamed(params.profile_id) },
+            { sdp::fields::level_id, utility::ostringstreamed(params.level_id) },
+            { sdp::fields::interop_constraints, utility::ostringstreamed(params.interop_constraints) },
+            { sdp::fields::sprop_vps, params.sprop_vps },
+            { sdp::fields::sprop_sps, params.sprop_sps },
+            { sdp::fields::sprop_pps, params.sprop_pps }
+        };
+
+        return{ session_name, sdp::media_types::video, rtpmap, fmtp, {}, {}, {}, {}, media_stream_ids, ts_refclk };
+    }
+
+
+    namespace details
+    {
+        // ought to be declared in nmos/sdp_utils.h
+        std::runtime_error sdp_processing_error(const std::string& message);
+
+        // ought to be declared in nmos/sdp_utils.h (definition currently has internal linkage)
+        sdp_parameters::fmtp_t::const_iterator find_fmtp(const sdp_parameters::fmtp_t& fmtp, const utility::string_t& param_name)
+        {
+            return std::find_if(fmtp.begin(), fmtp.end(), [&](const sdp_parameters::fmtp_t::value_type& param)
+            {
+                return param.first == param_name;
+            });
+        }
+    }
+
+    // Get additional "video/h265" parameters from the SDP parameters
+    video_H265_parameters get_video_H265_parameters(const sdp_parameters& sdp_params)
+    {
+        video_H265_parameters params;
+
+        if (sdp_params.fmtp.empty()) return params;
+
+        // optional
+        const auto profile_id = details::find_fmtp(sdp_params.fmtp, sdp::fields::profile_id);
+        if(sdp_params.fmtp.end() != profile_id ) throw details::sdp_processing_error("missing format parameter: profile-id");
+        params.profile_id = utility::istringstreamed<uint32_t>( profile_id->second );
+
+        // optional
+        const auto level_id = details::find_fmtp(sdp_params.fmtp, sdp::fields::level_id);
+        if (sdp_params.fmtp.end() == level_id) throw details::sdp_processing_error("missing format parameter: level_id");
+        params.level_id = utility::istringstreamed<uint32_t>( level_id->second );
+
+        //optional
+        const auto interop_constraints = details::find_fmtp(sdp_params.fmtp, sdp::fields::interop_constraints);
+        if (sdp_params.fmtp.end() == interop_constraints) throw details::sdp_processing_error("missing format parameter: interop_constraints");
+        params.interop_constraints = utility::istringstreamed<uint32_t>( interop_constraints->second );
+
+        //optional
+        const auto sprop_vps = details::find_fmtp(sdp_params.fmtp, sdp::fields::sprop_vps);
+        if (sdp_params.fmtp.end() == sprop_vps) throw details::sdp_processing_error("missing format parameter: sprop_vps");
+        params.sprop_vps = sprop_vps->second;
+
+        //optional
+        const auto sprop_sps = details::find_fmtp(sdp_params.fmtp, sdp::fields::sprop_sps);
+        if (sdp_params.fmtp.end() == sprop_sps) throw details::sdp_processing_error("missing format parameter: sprop_sps");
+        params.sprop_sps = sprop_sps->second;
+
+        //optional
+        const auto sprop_pps = details::find_fmtp(sdp_params.fmtp, sdp::fields::sprop_pps);
+        if (sdp_params.fmtp.end() == sprop_pps) throw details::sdp_processing_error("missing format parameter: sprop_pps");
+        params.sprop_pps = sprop_pps->second;
+
+        return params;
+    }
+}

Development/nmos/video_h265.h

@@ -0,0 +1,77 @@
+#ifndef NMOS_VIDEO_H265_H
+#define NMOS_VIDEO_H265_H
+
+#include "nmos/media_type.h"
+#include "nmos/sdp_utils.h"
+
+namespace sdp
+{
+    namespace fields
+    {
+        // See https://www.iana.org/assignments/media-types/video/H265
+        // and https://tools.ietf.org/html/rfc7798
+        const web::json::field<uint32_t> profile_id{U("profile-id")};
+        const web::json::field<uint32_t> level_id{U("level-id")};
+        const web::json::field<uint32_t> interop_constraints{U("interop-constraints")};
+        const web::json::field_as_string sprop_vps{U("sprop-vps")};
+        const web::json::field_as_string sprop_sps{U("sprop-sps")};
+        const web::json::field_as_string sprop_pps{U("sprop-pps")};
+    }
+}
+
+namespace nmos
+{
+    namespace media_types
+    {
+        // H.265 Video
+        // See https://datatracker.ietf.org/doc/html/rfc7798
+        const media_type video_H265{ U("video/H265") };
+    }
+
+    namespace fields
+    {
+        const web::json::field_as_integer profile_id{ U("profile_id") };
+        const web::json::field_as_integer level_id{ U("level_id") };
+        const web::json::field_as_integer interop_constraints{ U("interop_constraints") };
+    }
+
+    // Additional "video/H265" parameters
+    // See https://www.iana.org/assignments/media-types/video/H265
+    // and https://tools.ietf.org/html/rfc7798
+    struct video_H265_parameters
+    {
+        // fmtp indicates format
+        uint32_t profile_id;
+        uint32_t level_id;
+        uint32_t interop_constraints;
+        utility::string_t sprop_vps;
+        utility::string_t sprop_sps;
+        utility::string_t sprop_pps;
+
+        video_H265_parameters() : profile_id(), level_id(), interop_constraints() {}
+
+        video_H265_parameters(uint32_t profile_id, uint32_t level_id, uint32_t interop_constraints, utility::string_t sprop_vps, utility::string_t sprop_sps, utility::string_t sprop_pps)
+            : profile_id(profile_id)
+            , level_id(level_id)
+            , interop_constraints(interop_constraints)
+            , sprop_vps(sprop_vps)
+            , sprop_sps(sprop_sps)
+            , sprop_pps(sprop_pps)
+        {}
+    };
+
+    // Construct additional "video/H265" parameters from the IS-04 resources
+    video_H265_parameters make_video_H265_parameters(const web::json::value& node, const web::json::value& source, const web::json::value& flow, const web::json::value& sender, const utility::string_t& sprop_parameter_sets);
+    // Construct SDP parameters for "video/H265"
+    sdp_parameters make_video_H265_sdp_parameters(const utility::string_t& session_name, const video_H265_parameters& params, uint64_t payload_type, const std::vector<utility::string_t>& media_stream_ids = {}, const std::vector<sdp_parameters::ts_refclk_t>& ts_refclk = {});
+    // Get additional "video/H265" parameters from the SDP parameters
+    video_H265_parameters get_video_H265_parameters(const sdp_parameters& sdp_params);
+
+    // Construct SDP parameters for "video/H265"
+    inline sdp_parameters make_sdp_parameters(const utility::string_t& session_name, const video_H265_parameters& params, uint64_t payload_type, const std::vector<utility::string_t>& media_stream_ids = {}, const std::vector<sdp_parameters::ts_refclk_t>& ts_refclk = {})
+    {
+        return make_video_H265_sdp_parameters(session_name, params, payload_type, media_stream_ids, ts_refclk);
+    }
+}
+
+#endif