diff --git a/libavformat/dump.c b/libavformat/dump.c
index 7514aee7ac..c56895628d 100644
--- a/libavformat/dump.c
+++ b/libavformat/dump.c
@@ -339,7 +339,7 @@ static void dump_spherical(void *ctx, AVCodecParameters *par, AVPacketSideData *
                                  &l, &t, &r, &b);
         av_log(ctx, AV_LOG_INFO, "[%zu, %zu, %zu, %zu] ", l, t, r, b);
     } else if (spherical->projection == AV_SPHERICAL_CUBEMAP) {
-        av_log(ctx, AV_LOG_INFO, "[pad %zu] ", spherical->padding);
+        av_log(ctx, AV_LOG_INFO, "[pad %"PRIu32"] ", spherical->padding);
     }
 }
 
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 4fbf4b9a96..c6e1a190a8 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1601,8 +1601,8 @@ static int mkv_parse_video_projection(AVStream *st, const MatroskaTrack *track)
     AVSphericalMapping *spherical;
     enum AVSphericalProjection projection;
     size_t spherical_size;
-    size_t l = 0, t = 0, r = 0, b = 0;
-    size_t padding = 0;
+    uint32_t l = 0, t = 0, r = 0, b = 0;
+    uint32_t padding = 0;
     int ret;
     GetByteContext gb;
 
@@ -1627,7 +1627,7 @@ static int mkv_parse_video_projection(AVStream *st, const MatroskaTrack *track)
             if (b >= UINT_MAX - t || r >= UINT_MAX - l) {
                 av_log(NULL, AV_LOG_ERROR,
                        "Invalid bounding rectangle coordinates "
-                       "%zu,%zu,%zu,%zu\n", l, t, r, b);
+                       "%"PRIu32",%"PRIu32",%"PRIu32",%"PRIu32"\n", l, t, r, b);
                 return AVERROR_INVALIDDATA;
             }
         } else if (track->video.projection.private.size != 0) {
diff --git a/libavformat/mov.c b/libavformat/mov.c
index c6e7a38398..1c1857eaf9 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -3237,9 +3237,8 @@ static int mov_read_sv3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     MOVStreamContext *sc;
     int size, version, layout;
     int32_t yaw, pitch, roll;
-    size_t l = 0, t = 0, r = 0, b = 0;
-    size_t padding = 0;
-    uint32_t tag;
+    uint32_t l = 0, t = 0, r = 0, b = 0;
+    uint32_t tag, padding = 0;
     enum AVSphericalProjection projection;
 
     if (c->fc->nb_streams < 1)
@@ -3335,7 +3334,7 @@ static int mov_read_sv3d(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         if (b >= UINT_MAX - t || r >= UINT_MAX - l) {
             av_log(c->fc, AV_LOG_ERROR,
                    "Invalid bounding rectangle coordinates "
-                   "%zu,%zu,%zu,%zu\n", l, t, r, b);
+                   "%"PRIu32",%"PRIu32",%"PRIu32",%"PRIu32"\n", l, t, r, b);
             return AVERROR_INVALIDDATA;
         }
 
diff --git a/libavutil/spherical.h b/libavutil/spherical.h
index e7fc1d69fb..fd662cf676 100644
--- a/libavutil/spherical.h
+++ b/libavutil/spherical.h
@@ -164,10 +164,10 @@ typedef struct AVSphericalMapping {
      *       projection type (@ref AV_SPHERICAL_EQUIRECTANGULAR_TILE),
      *       and should be ignored in all other cases.
      */
-    size_t bound_left;   ///< Distance from the left edge
-    size_t bound_top;    ///< Distance from the top edge
-    size_t bound_right;  ///< Distance from the right edge
-    size_t bound_bottom; ///< Distance from the bottom edge
+    uint32_t bound_left;   ///< Distance from the left edge
+    uint32_t bound_top;    ///< Distance from the top edge
+    uint32_t bound_right;  ///< Distance from the right edge
+    uint32_t bound_bottom; ///< Distance from the bottom edge
     /**
      * @}
      */
@@ -179,7 +179,7 @@ typedef struct AVSphericalMapping {
      *       (@ref AV_SPHERICAL_CUBEMAP), and should be ignored in all other
      *       cases.
      */
-    size_t padding;
+    uint32_t padding;
 } AVSphericalMapping;
 
 /**