diff -aur nginx-0.4.7/src/http/modules/ngx_http_flv_module.c nginx-0.4.7.1/src/http/modules/ngx_http_flv_module.c
--- nginx-0.4.7/src/http/modules/ngx_http_flv_module.c  2006-10-09 11:38:59.000000000 -0400
+++ nginx-0.4.7.1/src/http/modules/ngx_http_flv_module.c        2006-10-10 22:23:38.000000000 -0400
@@ -70,6 +70,7 @@
     ngx_log_t                 *log;
     ngx_buf_t                 *b;
     ngx_chain_t                out[2];
+    ngx_chain_t               *out_p;
     ngx_file_info_t            fi;
     ngx_pool_cleanup_t        *cln;
     ngx_pool_cleanup_file_t   *clnf;
@@ -190,25 +191,33 @@
     clnf->log = r->pool->log;

     r->headers_out.status = NGX_HTTP_OK;
-    r->headers_out.content_length_n = sizeof(ngx_flv_header) - 1 + len;
+    r->headers_out.content_length_n = len;
+    if (start) {
+        r->headers_out.content_length_n += sizeof(ngx_flv_header) - 1;
+    }
     r->headers_out.last_modified_time = ngx_file_mtime(&fi);

     if (ngx_http_set_content_type(r) != NGX_OK) {
         return NGX_HTTP_INTERNAL_SERVER_ERROR;
     }

-    b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
-    if (b == NULL) {
-        return NGX_HTTP_INTERNAL_SERVER_ERROR;
-    }
-
-    b->pos = ngx_flv_header;
-    b->last = ngx_flv_header + sizeof(ngx_flv_header) - 1;
-    b->memory = 1;
+    out_p = out;

-    out[0].buf = b;
-    out[0].next = &out[1];
+    if (start) {
+        b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
+        if (b == NULL) {
+            return NGX_HTTP_INTERNAL_SERVER_ERROR;
+        }

+        b->pos = ngx_flv_header;
+        b->last = ngx_flv_header + sizeof(ngx_flv_header) - 1;
+        b->memory = 1;
+
+        out_p->buf = b;
+        out_p->next = out_p + 1;
+        out_p++;
+    }
+
     b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
     if (b == NULL) {
         return NGX_HTTP_INTERNAL_SERVER_ERROR;
@@ -236,8 +245,8 @@
     b->file->name = path;
     b->file->log = log;

-    out[1].buf = b;
-    out[1].next = NULL;
+    out_p->buf = b;
+    out_p->next = NULL;

     return ngx_http_output_filter(r, out);
 }