move syncpoint timestamp resetting code to a common file

Originally committed as revision 10020 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 33 insertions, 0 deletions

diff --git a/libavformat/nut.c b/libavformat/nut.c
new file mode 100644
index 0000000000..5f81957b12
--- /dev/null
+++ b/libavformat/nut.c
@@ -0,0 +1,33 @@
+/*
+ * nut
+ * Copyright (c) 2004-2007 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "nut.h"
+
+void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val){
+    int i;
+    for(i=0; i<nut->avf->nb_streams; i++){
+        nut->stream[i].last_pts= av_rescale_rnd(
+            val / nut->time_base_count,
+            time_base.num * (int64_t)nut->stream[i].time_base->den,
+            time_base.den * (int64_t)nut->stream[i].time_base->num,
+            AV_ROUND_DOWN);
+    }
+}