@@ -148,6 +148,9 @@ Place AAC sequence header based on audio stream data.

 @item no_sequence_end

 Disable sequence end tag.

+@item no_metadata

+Disable metadata tag.

+

 @item add_keyframe_index

 Used to facilitate seeking; particularly for HTTP pseudo streaming.

 @end table

@@ -67,6 +67,7 @@ typedef enum {

     FLV_AAC_SEQ_HEADER_DETECT = (1 << 0),

     FLV_NO_SEQUENCE_END = (1 << 1),

     FLV_ADD_KEYFRAME_INDEX = (1 << 2),

+    FLV_NO_METADATA = (1 << 3),

 } FLVFlags;

 typedef struct FLVFileposition {

@@ -744,7 +745,11 @@ static int flv_write_header(AVFormatContext *s)

             flv->reserved = 5;

         }

-    write_metadata(s, 0);

+    if (flv->flags & FLV_NO_METADATA) {

+        pb->seekable = 0;

+    } else {

+        write_metadata(s, 0);

+    }

     for (i = 0; i < s->nb_streams; i++) {

         flv_write_codec_header(s, s->streams[i]->codecpar);

@@ -1055,6 +1060,7 @@ static const AVOption options[] = {

     { "flvflags", "FLV muxer flags", offsetof(FLVContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },

     { "aac_seq_header_detect", "Put AAC sequence header based on stream data", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_AAC_SEQ_HEADER_DETECT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },

     { "no_sequence_end", "disable sequence end for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_SEQUENCE_END}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },

+    { "no_metadata", "disable metadata for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_METADATA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },

     { "add_keyframe_index", "Add keyframe index metadata", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_ADD_KEYFRAME_INDEX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },

     { NULL },

 };