@@ -140,6 +140,12 @@ typedef struct AVIOContext {

      * This field is internal to libavformat and access from outside is not allowed.

      */

      int seek_count;

+

+    /**

+     * writeout statistic

+     * This field is internal to libavformat and access from outside is not allowed.

+     */

+     int writeout_count;

 } AVIOContext;

 /* unbuffered I/O */

@@ -131,6 +131,7 @@ static void writeout(AVIOContext *s, const uint8_t *data, int len)

             s->error = ret;

         }

     }

+    s->writeout_count ++;

     s->pos += len;

 }

@@ -827,7 +828,9 @@ int avio_close(AVIOContext *s)

     avio_flush(s);

     h = s->opaque;

     av_freep(&s->buffer);

-    if (!s->write_flag)

+    if (s->write_flag)

+        av_log(s, AV_LOG_DEBUG, "Statistics: %d seeks, %d writeouts\n", s->seek_count, s->writeout_count);

+    else

         av_log(s, AV_LOG_DEBUG, "Statistics: %"PRId64" bytes read, %d seeks\n", s->bytes_read, s->seek_count);

     av_free(s);

     return ffurl_close(h);