[FFmpeg-cvslog] examples/muxing: change error checks, from "ret != 0" to "ret < 0"

[Stefano Sabatini]

ffmpeg | branch: master | Stefano Sabatini <stefasab at gmail.com> | Sun Jan 19 17:18:40 2014 +0100| [b933c72b5e36967b6be73555e8289cc074fb44a7] | committer: Stefano Sabatini

examples/muxing: change error checks, from "ret != 0" to "ret < 0"

More consistent and more future-proof.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b933c72b5e36967b6be73555e8289cc074fb44a7
---

 doc/examples/muxing.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/doc/examples/muxing.c b/doc/examples/muxing.c
index 302208d..77171d0 100644
--- a/doc/examples/muxing.c
+++ b/doc/examples/muxing.c
@@ -310,7 +310,7 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
         return;
 
     ret = write_frame(oc, &c->time_base, st, &pkt);
-    if (ret != 0) {
+    if (ret < 0) {
         fprintf(stderr, "Error while writing audio frame: %s\n",
                 av_err2str(ret));
         exit(1);
@@ -467,7 +467,8 @@ static void write_video_frame(AVFormatContext *oc, AVStream *st)
             ret = 0;
         }
     }
-    if (ret != 0) {
+
+    if (ret < 0) {
         fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
         exit(1);
     }