Make Launch more appropriate with support for full paths for the ffmpeg binary

Originally committed as revision 4693 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/ffserver.conf

@@ -51,7 +51,9 @@ FileMaxSize 200K
 # This marks the file as readonly and it will not be deleted or updated.
 
 # Specify launch in order to start ffmpeg automatically.
-#Launch
+# First ffmpeg must be defined with an appropriate path if needed,
+# after that options can follow, but avoid adding the http:// field
+#Launch ffmpeg
 
 # Only allow connections from localhost to the feed.
 ACL allow 127.0.0.1

ffserver.c

@@ -3852,10 +3852,7 @@ static int parse_ffconfig(const char *filename)
 
                 feed->child_argv = (char **) av_mallocz(64 * sizeof(char *));
 
-                feed->child_argv[0] = av_malloc(7);
-                strcpy(feed->child_argv[0], "ffmpeg");
-
-                for (i = 1; i < 62; i++) {
+                for (i = 0; i < 62; i++) {
                     char argbuf[256];
 
                     get_arg(argbuf, sizeof(argbuf), &p);