examples/muxing: check on frame

Fix crash in case frame is not defined (e.g. with muxing out.wav).
13 years ago · eda0a52bf1
parent d6196d9421
commit eda0a52bf1
1 changed files with 2 additions and 1 deletions
--- a/doc/examples/muxing.c
+++ b/doc/examples/muxing.c
@ -467,7 +467,8 @@ int main(int argc, char **argv)
        return 1;
    }

-    frame->pts = 0;
+    if (frame)
+        frame->pts = 0;
    for (;;) {
        /* Compute current audio and video time. */
        if (audio_st)