From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 28 Jan 2015 19:55:42 +0000 (+0100)
Subject: avformat/aviobuf: Allow seeking to the end of the buffer for read only buffers
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=58ed1528574f7e8bfa916b1e03b1406908ebc9f5;p=ffmpeg

avformat/aviobuf: Allow seeking to the end of the buffer for read only buffers

This undoes the effect of 3c18a7b18807de81566381a1bcbe9f6103c0296b for reading

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---

diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 6a1f83acba6..3d77a7ff254 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -228,7 +228,7 @@ int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
 
     offset1 = offset - pos;
     if (!s->must_flush && (!s->direct || !s->seek) &&
-        offset1 >= 0 && offset1 < buffer_size) {
+        offset1 >= 0 && offset1 <= buffer_size - s->write_flag) {
         /* can do the seek inside the buffer */
         s->buf_ptr = s->buffer + offset1;
     } else if ((!s->seekable ||