libhb: Use a buffer flat to indicate EOF

... instead of a 0 length buffer.
This fixes this issue:
https://forum.handbrake.fr/viewtopic.php?f=12&t=31959

Theora can create 0 length output. These 0 length frames indicate
duplicate frames. So we can't use 0 length buffers to indicate the end
of the stream.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@7143 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 7 insertions, 0 deletions

diff --git a/libhb/fifo.c b/libhb/fifo.c
index f88c43bfb..72c1c181f 100644
--- a/libhb/fifo.c
+++ b/libhb/fifo.c
@@ -447,6 +447,13 @@ hb_buffer_t * hb_buffer_init( int size )
     return hb_buffer_init_internal(size, 0);
 }
 
+hb_buffer_t * hb_buffer_eof_init(void)
+{
+    hb_buffer_t * buf = hb_buffer_init(0);
+    buf->s.flags = HB_BUF_FLAG_EOF;
+    return buf;
+}
+
 void hb_buffer_realloc( hb_buffer_t * b, int size )
 {
     if ( size > b->alloc || b->data == NULL )