fix(nvenc): Include bitstream restrictions in H.264/HEVC SPS (#4556)

src/nvenc/nvenc_base.cpp

@@ -304,6 +304,9 @@ namespace nvenc {
       vui_config.chromaSampleLocationFlag = buffer_is_yuv444() ? 0 : 1;
       vui_config.chromaSampleLocationTop = 0;
       vui_config.chromaSampleLocationBot = 0;
+
+      // This is critical for low decoding latency on certain devices
+      vui_config.bitstreamRestrictionFlag = 1;
     };
 
     switch (client_config.videoFormat) {