lavc SVT: check for libsvtav1 explicitly

If checking AV1 properties, check if the codecs is really libsvtav1. It
can be also libsvt_vp9, where the option setting would fail (athough
innocent, it may be confusing).

Author: MartinPulec

src/video_compress/libavcodec.cpp

@@ -1890,7 +1890,7 @@ static void configure_svt(AVCodecContext *codec_ctx, struct setparam_param *para
                         check_av_opt_set<int>(codec_ctx->priv_data, "tile_col_cnt", tile_col_cnt);
                         check_av_opt_set<int>(codec_ctx->priv_data, "tile_slice_mode", 1);
                 }
-        } else { // libsvtav1
+        } else if ("libsvtav1"s == codec_ctx->codec->name) {
 #if LIBAVCODEC_VERSION_INT > AV_VERSION_INT(59, 21, 100)
                 //pred-struct=1 is low-latency mode
                 if (int ret = av_opt_set(codec_ctx->priv_data, "svtav1-params", "pred-struct=1:tile-columns=2:tile-rows=2", 0)) {
@@ -1899,9 +1899,7 @@ static void configure_svt(AVCodecContext *codec_ctx, struct setparam_param *para
 #else
                 // tile_columns and tile_rows are log2 values
                 for (auto const &val : { "tile_columns", "tile_rows" }) {
-                        if (int ret = av_opt_set_int(codec_ctx->priv_data, val, 2, 0)) {
-                                print_libav_error(LOG_LEVEL_WARNING, MOD_NAME "Unable to set tile dimensions for SVT AV1", ret);
-                        }
+                        check_av_opt_set<int>(codec_ctx->priv_data, val, 2, "tile dimensions for SVT AV1");
                 }
 #endif
         }