Mark internal lavf FourCCs as such.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@20955 b3059339-0415-0410-9bf9-f77b7e298cf2

etc/codecs.conf

@@ -1925,7 +1925,7 @@ videocodec fffraps
 videocodec fftiertexseq
   info "FFmpeg Tiertex SEQ"
   status working
-  fourcc TSEQ
+  fourcc TSEQ ; internal MPlayer FourCC
   driver ffmpeg
   dll "tiertexseqvideo"
   out BGR8
@@ -1933,7 +1933,7 @@ videocodec fftiertexseq
 videocodec ffvmd
   info "FFmpeg Sierra VMD video"
   status working
-  fourcc VMDV
+  fourcc VMDV ; internal MPlayer FourCC
   driver ffmpeg
   dll "vmdvideo"
   out BGR8
@@ -2431,7 +2431,7 @@ audiocodec dk3adpcm
 audiocodec ffroqaudio
   info "Id RoQ File Audio Decoder"
   status working
-  fourcc RoQA ; RoQA is an internal MPlayer FOURCC
+  fourcc RoQA ; internal MPlayer FourCC
   driver ffmpeg
   dll "roq_dpcm"
 
@@ -2445,21 +2445,21 @@ audiocodec ffsmkaud
 audiocodec ff4xmadmpcm
   info "FFmpeg 4XM ADPCM audio"
   status working
-  fourcc "4XMA"
+  fourcc 4XMA ; internal MPlayer FourCC
   driver ffmpeg
   dll adpcm_4xm
 
 audiocodec ffadpcmimaws
   info "FFmpeg Westwood IMA ADPCM audio"
   status working
-  fourcc AIWS
+  fourcc AIWS ; internal MPlayer FourCC
   driver ffmpeg
   dll adpcm_ima_ws
 
 audiocodec ffinterplaydpcm
   info "FFmpeg Interplay DPCM audio"
   status working
-  fourcc INPA
+  fourcc INPA ; internal MPlayer FourCC
   driver ffmpeg
   dll interplay_dpcm
 
@@ -2506,21 +2506,21 @@ audiocodec ffalac
 audiocodec fftta
   info "FFmpeg True Audio (TTA) decoder"
   status working
-  fourcc TTA1
+  fourcc TTA1 ; internal MPlayer FourCC
   driver ffmpeg
   dll "tta"
 
 audiocodec ffwavpack
   info "FFmpeg WavPack audio decoder"
   status working
-  fourcc WVPK
+  fourcc WVPK ; internal MPlayer FourCC
   driver ffmpeg
   dll "wavpack"
 
 audiocodec ffshorten
   info "FFmpeg Shorten audio decoder"
   status working
-  fourcc shrn
+  fourcc shrn ; internal MPlayer FourCC
   driver ffmpeg
   dll "shorten"