reorder object types id by muxing preference

Originally committed as revision 11648 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/isom.c

@@ -26,12 +26,13 @@
 #include "isom.h"
 
 /* http://www.mp4ra.org */
+/* ordered by muxing preference */
 const AVCodecTag ff_mp4_obj_type[] = {
     { CODEC_ID_MPEG4     ,  32 },
     { CODEC_ID_H264      ,  33 },
     { CODEC_ID_AAC       ,  64 },
-    { CODEC_ID_MPEG2VIDEO,  96 }, /* MPEG2 Simple */
     { CODEC_ID_MPEG2VIDEO,  97 }, /* MPEG2 Main */
+    { CODEC_ID_MPEG2VIDEO,  96 }, /* MPEG2 Simple */
     { CODEC_ID_MPEG2VIDEO,  98 }, /* MPEG2 SNR */
     { CODEC_ID_MPEG2VIDEO,  99 }, /* MPEG2 Spatial */
     { CODEC_ID_MPEG2VIDEO, 100 }, /* MPEG2 High */
@@ -39,9 +40,9 @@ const AVCodecTag ff_mp4_obj_type[] = {
     { CODEC_ID_AAC       , 102 }, /* MPEG2 AAC Main */
     { CODEC_ID_AAC       , 103 }, /* MPEG2 AAC Low */
     { CODEC_ID_AAC       , 104 }, /* MPEG2 AAC SSR */
+    { CODEC_ID_MP3       , 107 }, /* 11172-3 */
     { CODEC_ID_MP3       , 105 }, /* 13818-3 */
     { CODEC_ID_MPEG1VIDEO, 106 }, /* 11172-2 */
-    { CODEC_ID_MP3       , 107 }, /* 11172-3 */
     { CODEC_ID_MJPEG     , 108 }, /* 10918-1 */
     { CODEC_ID_PNG       , 109 },
     { CODEC_ID_JPEG2000  , 110 }, /* 15444-1 */