Use CODEC_ID_NONE instead of 0 for enum CodecID.

Originally committed as revision 20481 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/aiff.h

@@ -46,7 +46,7 @@ static const AVCodecTag ff_codec_aiff_tags[] = {
     { CODEC_ID_PCM_S16LE,    MKTAG('s','o','w','t') },
     { CODEC_ID_ADPCM_IMA_QT, MKTAG('i','m','a','4') },
     { CODEC_ID_QDM2,         MKTAG('Q','D','M','2') },
-    { 0, 0 },
+    { CODEC_ID_NONE,         0 },
 };
 
 #endif /* AVFORMAT_AIFF_H */

libavformat/mxfenc.c

@@ -86,7 +86,7 @@ static const struct {
     { CODEC_ID_MPEG2VIDEO, 0 },
     { CODEC_ID_PCM_S24LE,  1 },
     { CODEC_ID_PCM_S16LE,  1 },
-    { 0 }
+    { CODEC_ID_NONE }
 };
 
 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);