remove unneeded ffmpeg commandline switches, and enable quiet mode

Originally committed as revision 13720 to svn://svn.ffmpeg.org/ffmpeg/trunk

tests/test.conf

@@ -57,7 +57,7 @@ FileMaxSize 100M
 
 # Fire up ffmpeg pointing at this stream
 
-Launch ./ffmpeg -flags +bitexact -dct fastint -idct simple -y -f pgmyuv -i tests/vsynth1/%02d.pgm
+Launch ./ffmpeg -v 0 -y -f pgmyuv -i tests/vsynth1/%02d.pgm
 
 ACL allow localhost
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