Add option for intra refresh (resolves #86)

src/config.cpp

@@ -1008,6 +1008,7 @@ namespace config {
     bool_f(vars, "nvenc_spatial_aq", video.nv.adaptive_quantization);
     generic_f(vars, "nvenc_twopass", video.nv.two_pass, nv::twopass_from_view);
     bool_f(vars, "nvenc_h264_cavlc", video.nv.h264_cavlc);
+    bool_f(vars, "nvenc_intra_refresh", video.nv.intra_refresh);
     bool_f(vars, "nvenc_realtime_hags", video.nv_realtime_hags);
     bool_f(vars, "nvenc_opengl_vulkan_on_dxgi", video.nv_opengl_vulkan_on_dxgi);
     bool_f(vars, "nvenc_latency_over_power", video.nv_sunshine_high_power_mode);

src/nvenc/nvenc_base.cpp

@@ -321,10 +321,14 @@ namespace nvenc {
         set_ref_frames(format_config.maxNumRefFramesInDPB, format_config.numRefL0, 5);
         set_minqp_if_enabled(config.min_qp_hevc);
         fill_h264_hevc_vui(format_config.hevcVUIParameters);
-        format_config.enableIntraRefresh = 1;
-        format_config.singleSliceIntraRefresh = 1;
-        format_config.intraRefreshPeriod = 300;
-        format_config.intraRefreshCnt = 299;
+
+        if (config.intra_refresh) {
+          format_config.enableIntraRefresh = 1;
+          format_config.singleSliceIntraRefresh = 1;
+          format_config.intraRefreshPeriod = 300;
+          format_config.intraRefreshCnt = 299;
+        }
+
         break;
       }
 

src/nvenc/nvenc_config.h

@@ -48,6 +48,9 @@ namespace nvenc {
 
     // Add filler data to encoded frames to stay at target bitrate, mainly for testing
     bool insert_filler_data = false;
+
+    // Intra refresh for clients that doesn't request keyframe correctly
+    bool intra_refresh = false;
   };
 
 }  // namespace nvenc