@@ -551,20 +551,27 @@ static MatchingInfo lookup_signatures(AVFilterContext *ctx, SignatureContext *sc

     if (find_next_coarsecandidate(sc, second->coarsesiglist, &cs, &cs2, 1) == 0)

         return bestmatch; /* no candidate found */

     do {

-        av_log(ctx, AV_LOG_DEBUG, "Stage 1: got coarsesignature pair. indices of first frame: %d and %d\n", cs->first->index, cs2->first->index);

+        av_log(ctx, AV_LOG_DEBUG, "Stage 1: got coarsesignature pair. "

+               "indices of first frame: %"PRIu32" and %"PRIu32"\n",

+               cs->first->index, cs2->first->index);

         /* stage 2: l1-distance and hough-transform */

         av_log(ctx, AV_LOG_DEBUG, "Stage 2: calculate matching parameters\n");

         infos = get_matching_parameters(ctx, sc, cs->first, cs2->first);

         if (av_log_get_level() == AV_LOG_DEBUG) {

             for (i = infos; i != NULL; i = i->next) {

-                av_log(ctx, AV_LOG_DEBUG, "Stage 2: matching pair at %d and %d, ratio %f, offset %d\n", i->first->index, i->second->index, i->framerateratio, i->offset);

+                av_log(ctx, AV_LOG_DEBUG, "Stage 2: matching pair at %"PRIu32" and %"PRIu32", "

+                       "ratio %f, offset %d\n", i->first->index, i->second->index,

+                       i->framerateratio, i->offset);

             }

         }

         /* stage 3: evaluation */

         av_log(ctx, AV_LOG_DEBUG, "Stage 3: evaluate\n");

         if (infos) {

             bestmatch = evaluate_parameters(ctx, sc, infos, bestmatch, mode);

-            av_log(ctx, AV_LOG_DEBUG, "Stage 3: best matching pair at %d and %d, ratio %f, offset %d, score %d, %d frames matching\n", bestmatch.first->index, bestmatch.second->index, bestmatch.framerateratio, bestmatch.offset, bestmatch.score, bestmatch.matchframes);

+            av_log(ctx, AV_LOG_DEBUG, "Stage 3: best matching pair at %"PRIu32" and %"PRIu32", "

+                   "ratio %f, offset %d, score %d, %d frames matching\n",

+                   bestmatch.first->index, bestmatch.second->index,

+                   bestmatch.framerateratio, bestmatch.offset, bestmatch.score, bestmatch.matchframes);

             sll_free(infos);

         }

     } while (find_next_coarsecandidate(sc, second->coarsesiglist, &cs, &cs2, 0) && !bestmatch.whole);