imgconvert-test: count the number of unused pixel format values.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/imgconvert.c

@@ -634,11 +634,18 @@ int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
 int main(void){
     int i;
     int err=0;
+    int skip = 0;
 
     for (i=0; i<AV_PIX_FMT_NB*2; i++) {
         AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i);
-        if(!desc || !desc->name)
+        if(!desc || !desc->name) {
+            skip ++;
             continue;
+        }
+        if (skip) {
+            av_log(0, AV_LOG_INFO, "%3d unused pixel format values\n", skip);
+            skip = 0;
+        }
         av_log(0, AV_LOG_INFO, "pix fmt %s yuv_plan:%d avg_bpp:%d colortype:%d\n", desc->name, is_yuv_planar(desc), av_get_padded_bits_per_pixel(desc), get_color_type(desc));
         if ((!(desc->flags & PIX_FMT_ALPHA)) != (desc->nb_components != 2 && desc->nb_components != 4)) {
             av_log(0, AV_LOG_ERROR, "Alpha flag mismatch\n");