avformat: remove avio_flush() calls from the end of write_header functions

To make it consistent with other muxers.

The user can still control the generic flushing behaviour after write_header
(same way as after packets) using the -flush_packets option, the default
typically means to flush unless a non-streamed file output is used.

Therefore this change should have no adverse effect on streaming, even if it is
assumed that the first packet has a clean buffer, so small seekbacks within the
output buffer work even when the IO context is not seekable.

Signed-off-by: Marton Balint <cus@passwd.hu>

1 files changed, 0 insertions, 2 deletions

diff --git a/libavformat/wavenc.c b/libavformat/wavenc.c
index 2b28149056..c44d6d26e9 100644
--- a/libavformat/wavenc.c
+++ b/libavformat/wavenc.c
@@ -361,8 +361,6 @@ static int wav_write_header(AVFormatContext *s)
         wav->data = ff_start_tag(pb, "data");
     }
 
-    avio_flush(pb);
-
     return 0;
 }