diff --git a/demux/demux_lavf.c b/demux/demux_lavf.c
index 769cf02101..dd8af7cb47 100644
--- a/demux/demux_lavf.c
+++ b/demux/demux_lavf.c
@@ -112,7 +112,7 @@ static int64_t mp_seek(void *opaque, int64_t pos, int whence)
     else if (whence == SEEK_SET)
         pos += stream->start_pos;
     else if (whence == AVSEEK_SIZE && stream->end_pos > 0) {
-        off_t size;
+        uint64_t size;
         if (stream_control(stream, STREAM_CTRL_GET_SIZE, &size) == STREAM_OK)
             return size;
         return stream->end_pos - stream->start_pos;
diff --git a/stream/cache2.c b/stream/cache2.c
index b6df32821e..d547f9e5ea 100644
--- a/stream/cache2.c
+++ b/stream/cache2.c
@@ -87,7 +87,7 @@ typedef struct {
   // callback
   stream_t* stream;
   volatile int control;
-  volatile unsigned control_uint_arg;
+  volatile uint64_t control_uint_arg;
   volatile double control_double_arg;
   volatile struct stream_lang_req control_lang_arg;
   volatile int control_res;
@@ -260,6 +260,7 @@ static int cache_fill(cache_vars_t *s)
 static int cache_execute_control(cache_vars_t *s) {
   double double_res;
   unsigned uint_res;
+  uint64_t uint64_res;
   int needs_flush = 0;
   static unsigned last;
   int quit = s->control == -2;
@@ -314,6 +315,10 @@ static int cache_execute_control(cache_vars_t *s) {
       s->control_res = s->stream->control(s->stream, s->control, &uint_res);
       s->control_uint_arg = uint_res;
       break;
+    case STREAM_CTRL_GET_SIZE:
+      s->control_res = s->stream->control(s->stream, s->control, &uint64_res);
+      s->control_uint_arg = uint64_res;
+      break;
     case STREAM_CTRL_GET_LANG:
       s->control_res = s->stream->control(s->stream, s->control, (void *)&s->control_lang_arg);
       break;
@@ -640,6 +645,7 @@ int cache_do_control(stream_t *stream, int cmd, void *arg) {
     case STREAM_CTRL_GET_ASPECT_RATIO:
     case STREAM_CTRL_GET_NUM_ANGLES:
     case STREAM_CTRL_GET_ANGLE:
+    case STREAM_CTRL_GET_SIZE:
     case -2:
       s->control = cmd;
       break;
@@ -682,6 +688,9 @@ int cache_do_control(stream_t *stream, int cmd, void *arg) {
     case STREAM_CTRL_GET_ANGLE:
       *(unsigned *)arg = s->control_uint_arg;
       break;
+    case STREAM_CTRL_GET_SIZE:
+      *(uint64_t *)arg = s->control_uint_arg;
+      break;
     case STREAM_CTRL_GET_LANG:
       *(struct stream_lang_req *)arg = s->control_lang_arg;
       break;
diff --git a/stream/stream_file.c b/stream/stream_file.c
index abf0b37855..fe893af0b4 100644
--- a/stream/stream_file.c
+++ b/stream/stream_file.c
@@ -105,7 +105,7 @@ static int control(stream_t *s, int cmd, void *arg) {
       size = lseek(s->fd, 0, SEEK_END);
       lseek(s->fd, s->pos, SEEK_SET);
       if(size != (off_t)-1) {
-        *((off_t*)arg) = size;
+        *(uint64_t*)arg = size;
         return 1;
       }
     }
diff --git a/stream/stream_lavf.c b/stream/stream_lavf.c
index d21e35e6a3..9619a06b1a 100644
--- a/stream/stream_lavf.c
+++ b/stream/stream_lavf.c
@@ -63,7 +63,7 @@ static int control(stream_t *s, int cmd, void *arg)
     case STREAM_CTRL_GET_SIZE:
         size = avio_size(avio);
         if(size >= 0) {
-            *(off_t *)arg = size;
+            *(uint64_t *)arg = size;
             return 1;
         }
         break;
diff --git a/stream/stream_smb.c b/stream/stream_smb.c
index e2f77ce3a1..ecd2a6260a 100644
--- a/stream/stream_smb.c
+++ b/stream/stream_smb.c
@@ -77,7 +77,7 @@ static int control(stream_t *s, int cmd, void *arg) {
       off_t size = smbc_lseek(s->fd,0,SEEK_END);
       smbc_lseek(s->fd,s->pos,SEEK_SET);
       if(size != (off_t)-1) {
-        *((off_t*)arg) = size;
+        *(uint64_t *)arg = size;
         return 1;
       }
     }