From dbe0ad85c1722b67fc681fcf084b8f7afdd15adf Mon Sep 17 00:00:00 2001
From: Ivan Schreter <schreter@gmx.net>
Date: Sun, 13 Sep 2009 08:57:30 +0000
Subject: [PATCH] Use I/O buffer size as initial value for backoff for seeking
sync point search.
Originally committed as revision 19829 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/seek.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavformat/seek.c b/libavformat/seek.c
index 758767e2290..93cb679f3c3 100644
--- a/libavformat/seek.c
+++ b/libavformat/seek.c
@@ -342,8 +342,8 @@ int64_t ff_gen_syncpoint_search(AVFormatContext *s,
// Find keyframes in all active streams with timestamp/position just before
// and just after requested timestamp/position.
- step = 1024;
- curpos = pos;
+ step = s->pb->buffer_size;
+ curpos = FFMAX(pos - step / 2, 0);
for (;;) {
url_fseek(s->pb, curpos, SEEK_SET);
search_hi_lo_keyframes(s,
--
GitLab