[FFmpeg-cvslog] lavc/mjpegdec: use ptrdiff_t instead of ssize_t

[Matthieu Bouron]

ffmpeg | branch: master | Matthieu Bouron <matthieu.bouron at stupeflix.com> | Wed Jan 27 21:59:14 2016 +0100| [27f1ea5097da5aa3a3bffdc5f06e915a89f51c6a] | committer: Matthieu Bouron

lavc/mjpegdec: use ptrdiff_t instead of ssize_t

Fixes build on msvc.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=27f1ea5097da5aa3a3bffdc5f06e915a89f51c6a
---

 libavcodec/mjpegdec.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 0aedc9d..69c9cf3 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -1925,7 +1925,7 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
         uint8_t *dst = s->buffer;
 
         #define copy_data_segment(skip) do {       \
-            ssize_t length = (ptr - src) - (skip); \
+            ptrdiff_t length = (ptr - src) - (skip);  \
             if (length > 0) {                         \
                 memcpy(dst, src, length);             \
                 dst += length;                        \
@@ -1941,7 +1941,7 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
                 uint8_t x = *(ptr++);
 
                 if (x == 0xff) {
-                    ssize_t skip = 0;
+                    ptrdiff_t skip = 0;
                     while (ptr < buf_end && x == 0xff) {
                         x = *(ptr++);
                         skip++;