@@ -281,6 +281,22 @@ static int flv_write_header(AVFormatContext *s)

     }

     while ((tag = av_dict_get(s->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {

+        if(   !strcmp(tag->key, "width")

+            ||!strcmp(tag->key, "height")

+            ||!strcmp(tag->key, "videodatarate")

+            ||!strcmp(tag->key, "framerate")

+            ||!strcmp(tag->key, "videocodecid")

+            ||!strcmp(tag->key, "audiodatarate")

+            ||!strcmp(tag->key, "audiosamplerate")

+            ||!strcmp(tag->key, "audiosamplesize")

+            ||!strcmp(tag->key, "stereo")

+            ||!strcmp(tag->key, "audiocodecid")

+            ||!strcmp(tag->key, "duration")

+            ||!strcmp(tag->key, "onMetaData")

+        ){

+            av_log(s, AV_LOG_DEBUG, "ignoring metadata for %s\n", tag->key);

+            continue;

+        }

         put_amf_string(pb, tag->key);

         avio_w8(pb, AMF_DATA_TYPE_STRING);

         put_amf_string(pb, tag->value);