[FFmpeg-cvslog] lavf/wav: Read files >4G if no smaller filesize was written.

[Carl Eugen Hoyos]

ffmpeg | branch: master | Carl Eugen Hoyos <cehoyos at ag.or.at> | Sat May 16 23:33:48 2015 +0200| [2acc06565321fde44faf407679c9c211aacaca08] | committer: Carl Eugen Hoyos

lavf/wav: Read files >4G if no smaller filesize was written.

Fixes second part of ticket #4543.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2acc06565321fde44faf407679c9c211aacaca08
---

 libavformat/wavdec.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index 410c2ec..befc664 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -335,9 +335,14 @@ static int wav_read_header(AVFormatContext *s)
 
             if (rf64) {
                 next_tag_ofs = wav->data_end = avio_tell(pb) + data_size;
-            } else {
+            } else if (size != 0xFFFFFFFF) {
                 data_size    = size;
                 next_tag_ofs = wav->data_end = size ? next_tag_ofs : INT64_MAX;
+            } else {
+                av_log(s, AV_LOG_WARNING, "Ignoring maximum wav data size, "
+                       "file may be invalid\n");
+                data_size    = 0;
+                next_tag_ofs = wav->data_end = INT64_MAX;
             }
 
             data_ofs = avio_tell(pb);