lavc/qsvenc: add encode support for screen content coding extension

Enables HEVC Screen Content Coding extension support on ICL+ platform

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>

doc/encoders.texi

@@ -3411,12 +3411,15 @@ an internal session.
 Depth of look ahead in number frames, available when extbrc option is enabled.
 
 @item @var{profile}
+Set the encoding profile (scc requires libmfx >= 1.32).
+
 @table @samp
 @item unknown
 @item main
 @item main10
 @item mainsp
 @item rext
+@item scc
 @end table
 
 @item @var{gpb}

libavcodec/qsvenc.c

@@ -74,6 +74,9 @@ static const struct profile_names hevc_profiles[] = {
     { MFX_PROFILE_HEVC_MAINSP,                  "hevc mainsp"                },
     { MFX_PROFILE_HEVC_REXT,                    "hevc rext"                  },
 #endif
+#if QSV_VERSION_ATLEAST(1, 32)
+    { MFX_PROFILE_HEVC_SCC,                     "hevc scc"                   },
+#endif
 };
 
 static const struct profile_names vp9_profiles[] = {

libavcodec/qsvenc_hevc.c

@@ -244,6 +244,9 @@ static const AVOption options[] = {
     { "main10",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAIN10  }, INT_MIN, INT_MAX,     VE, "profile" },
     { "mainsp",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_MAINSP  }, INT_MIN, INT_MAX,     VE, "profile" },
     { "rext",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_REXT    }, INT_MIN, INT_MAX,     VE, "profile" },
+#if QSV_VERSION_ATLEAST(1, 32)
+    { "scc",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_HEVC_SCC     }, INT_MIN, INT_MAX,     VE, "profile" },
+#endif
 
     { "gpb", "1: GPB (generalized P/B frame); 0: regular P frame", OFFSET(qsv.gpb), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE},