[FFmpeg-devel] [PATCH] avformat/wtvdec: Fix reading OLE dates on BE

[Andreas Rheinhardt]

The WTV demuxer's oledata_to_iso8601 reads a value via avio_rl64
and reinterprets it as a double via av_int2double. This does not
work on big endian systems. So swap it to native endianness before
av_int2double.

law-and-order-partial.wtv from the FATE-suite exhibited the problem.

Thanks-to: Andriy Gelman <andriy.gelman at gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
---
 libavformat/wtvdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/wtvdec.c b/libavformat/wtvdec.c
index 7def9d2348..bb84e5dc9f 100644
--- a/libavformat/wtvdec.c
+++ b/libavformat/wtvdec.c
@@ -418,7 +418,7 @@ static int crazytime_to_iso8601(char *buf, int buf_size, int64_t value)
  */
 static int oledate_to_iso8601(char *buf, int buf_size, int64_t value)
 {
-    time_t t = (av_int2double(value) - 25569.0) * 86400;
+    time_t t = (av_int2double(av_le2ne64(value)) - 25569.0) * 86400;
     struct tm tmbuf;
     struct tm *tm= gmtime_r(&t, &tmbuf);
     if (!tm)
-- 
2.27.0