@@ -126,6 +126,7 @@ typedef struct VAAPIEncodeH264Context {

 typedef struct VAAPIEncodeH264Options {

     int qp;

     int quality;

+    int low_power;

 } VAAPIEncodeH264Options;

@@ -860,7 +861,17 @@ static av_cold int vaapi_encode_h264_init_internal(AVCodecContext *avctx)

                avctx->profile);

         return AVERROR(EINVAL);

     }

-    ctx->va_entrypoint = VAEntrypointEncSlice;

+    if (opt->low_power) {

+#if VA_CHECK_VERSION(0, 39, 1)

+        ctx->va_entrypoint = VAEntrypointEncSliceLP;

+#else

+        av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "

+               "supported with this VAAPI version.\n");

+        return AVERROR(EINVAL);

+#endif

+    } else {

+        ctx->va_entrypoint = VAEntrypointEncSlice;

+    }

     ctx->input_width    = avctx->width;

     ctx->input_height   = avctx->height;

@@ -943,7 +954,10 @@ static const AVOption vaapi_encode_h264_options[] = {

     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",

       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },

     { "quality", "Set encode quality (trades off against speed, higher is faster)",

-      OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, FLAGS },

+      OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },

+    { "low_power", "Use low-power encoding mode (experimental: only supported "

+      "on some platforms, does not support all features)",

+      OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },

     { NULL },

 };