[FFmpeg-devel] [PATCH] lavf/file: prefer lseek64 to lseek

[Yu Xiaolei]

This fixes 2GB seek limit on Android, because NDK does not handle _FILE_OFFSET_BITS (https://code.google.com/p/android/issues/detail?id=64613).

---
 configure          | 2 ++
 libavformat/file.c | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/configure b/configure
index 2a20d03..e8dc71d 100755
--- a/configure
+++ b/configure
@@ -1719,6 +1719,7 @@ SYSTEM_FUNCS="
     jack_port_get_latency_range
     kbhit
     localtime_r
+    lseek64
     lzo1x_999_compress
     mach_absolute_time
     MapViewOfFile
@@ -4704,6 +4705,7 @@ check_func  strerror_r
 check_func  sysconf
 check_func  sysctl
 check_func  usleep
+check_func  lseek64
 
 check_func_headers conio.h kbhit
 check_func_headers io.h setmode
diff --git a/libavformat/file.c b/libavformat/file.c
index 6511328..b30cde2 100644
--- a/libavformat/file.c
+++ b/libavformat/file.c
@@ -178,7 +178,11 @@ static int64_t file_seek(URLContext *h, int64_t pos, int whence)
         return ret < 0 ? AVERROR(errno) : (S_ISFIFO(st.st_mode) ? 0 : st.st_size);
     }
 
+#if HAVE_LSEEK64
+    ret = lseek64(c->fd, pos, whence);
+#else
     ret = lseek(c->fd, pos, whence);
+#endif
 
     return ret < 0 ? AVERROR(errno) : ret;
 }
-- 
2.1.1