vf_showinfo: Simplify reporting stereo3d information

libavfilter/vf_showinfo.c

@@ -51,19 +51,7 @@ static void dump_stereo3d(AVFilterContext *ctx, AVFrameSideData *sd)
 
     stereo = (AVStereo3D *)sd->data;
 
-    av_log(ctx, AV_LOG_INFO, "type - ");
-    switch (stereo->type) {
-    case AV_STEREO3D_2D:                  av_log(ctx, AV_LOG_INFO, "2D");                     break;
-    case AV_STEREO3D_SIDEBYSIDE:          av_log(ctx, AV_LOG_INFO, "side by side");           break;
-    case AV_STEREO3D_TOPBOTTOM:           av_log(ctx, AV_LOG_INFO, "top and bottom");         break;
-    case AV_STEREO3D_FRAMESEQUENCE:       av_log(ctx, AV_LOG_INFO, "frame alternate");        break;
-    case AV_STEREO3D_CHECKERBOARD:        av_log(ctx, AV_LOG_INFO, "checkerboard");           break;
-    case AV_STEREO3D_LINES:               av_log(ctx, AV_LOG_INFO, "interleaved lines");      break;
-    case AV_STEREO3D_COLUMNS:             av_log(ctx, AV_LOG_INFO, "interleaved columns");    break;
-    case AV_STEREO3D_SIDEBYSIDE_QUINCUNX: av_log(ctx, AV_LOG_INFO, "side by side "
-                                                                   "(quincunx subsampling)"); break;
-    default:                              av_log(ctx, AV_LOG_WARNING, "unknown");             break;
-    }
+    av_log(ctx, AV_LOG_INFO, "type - %s", av_stereo3d_type_name(stereo->type));
 
     if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
         av_log(ctx, AV_LOG_INFO, " (inverted)");