Allow code to pass data to filters it creates.

[ffmpeg] / output_example.c

diff --git a/output_example.c b/output_example.c
index 7f75b76f23ffab591f621147824d564c9415ea98..36b0921d20469a01d03f58770e9382db2959ec3b 100644 (file)
--- a/output_example.c
+++ b/output_example.c
@@ -28,12 +28,14 @@
 #include <math.h>
 
 #ifndef M_PI
-#define M_PI 3.1415926535897931
+#define M_PI 3.14159265358979323846
 #endif
 
 #include "avformat.h"
 #include "swscale.h"
 
+#undef exit
+
 /* 5 seconds stream duration */
 #define STREAM_DURATION   5.0
 #define STREAM_FRAME_RATE 25 /* 25 images/s */
@@ -215,12 +217,12 @@ static AVStream *add_video_stream(AVFormatContext *oc, int codec_id)
         c->max_b_frames = 2;
     }
     if (c->codec_id == CODEC_ID_MPEG1VIDEO){
-        /* needed to avoid using macroblocks in which some coeffs overflow
-           this doesnt happen with normal video, it just happens here as the
-           motion of the chroma plane doesnt match the luma plane */
+        /* Needed to avoid using macroblocks in which some coeffs overflow.
+           This does not happen with normal video, it just happens here as
+           the motion of the chroma plane does not match the luma plane. */
         c->mb_decision=2;
     }
-    // some formats want stream headers to be seperate
+    // some formats want stream headers to be separate
     if(!strcmp(oc->oformat->name, "mp4") || !strcmp(oc->oformat->name, "mov") || !strcmp(oc->oformat->name, "3gp"))
         c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 
@@ -536,7 +538,7 @@ int main(int argc, char **argv)
 
     if (!(fmt->flags & AVFMT_NOFILE)) {
         /* close the output file */
-        url_fclose(&oc->pb);
+        url_fclose(oc->pb);
     }
 
     /* free the stream */