[vlc-commits] demux: ts: check defined reference

[Francois Cartegnie]

vlc | branch: master | Francois Cartegnie <fcvlcdev at free.fr> | Fri Sep  7 11:43:19 2018 +0200| [2d82539e5fd7a1db127ed30a12dd8039246833da] | committer: Francois Cartegnie

demux: ts: check defined reference

fail if invalid reference changes

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=2d82539e5fd7a1db127ed30a12dd8039246833da
---

 modules/demux/mpeg/ts.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/modules/demux/mpeg/ts.h b/modules/demux/mpeg/ts.h
index b12a7dac51..24ed821bd0 100644
--- a/modules/demux/mpeg/ts.h
+++ b/modules/demux/mpeg/ts.h
@@ -28,7 +28,12 @@ typedef struct csa_t csa_t;
 #define TS_USER_PMT_NUMBER (0)
 
 #define TS_PSI_PAT_PID 0x00
-#define TS_TICK_UNKNOWN -1
+
+#if (VLC_TICK_INVALID + 1 != VLC_TICK_0)
+#   error "can't define TS_UNKNOWN reference"
+#else
+#   define TS_TICK_UNKNOWN (VLC_TICK_INVALID - 1)
+#endif
 #define SETANDVALID(a) (a != TS_TICK_UNKNOWN && a != VLC_TICK_INVALID)
 
 typedef enum ts_standards_e