Refinement of ADPCM codecs, added realaudio/dvaudio, added some x- prefixes where appropriate (see IANA)

Original commit message from CVS:
Refinement of ADPCM codecs, added realaudio/dvaudio, added some x- prefixes where appropriate (see IANA)

docs/random/mimetypes

@@ -77,7 +77,7 @@ audio), but these are usually used in conjunction with each other.
   properties: 'systemstream' = TRUE (BOOLEAN)
 
 4 - ASF (Microsoft)
-  mimetype: video/x-ms-asf
+  mimetype: video/x-asf
 
 5 - WAV (PCM)
   mimetype: audio/x-wav
@@ -88,9 +88,10 @@ audio), but these are usually used in conjunction with each other.
 7 - DV (Digital Video)
   mimetype: video/dv
   properties: 'systemstream' = TRUE (BOOLEAN)
+              'format' = "PAL"/"NTSC" (STRING)
 
 8 - Ogg (Xiph)
-  mimetype: application/x-ogg
+  mimetype: application/ogg
 
 9 - Matroska
   mimetype: video/x-mkv
@@ -125,6 +126,7 @@ Preface - (optional) properties for all video formats:
   YUY2: packed, Y-U-Y-V order, U/V hor 2x subsampled (YUV-4:2:2, 16 bpp)
   YVYU: packed, Y-V-Y-U order, U/V hor 2x subsampled (YUV-4:2:2, 16 bpp)
   UYVY: packed, U-Y-V-Y order, U/V hor 2x subsampled (YUV-4:2:2, 16 bpp)
+  Y41P: packed, UYVYUYVYYYYY order, U/V hor 4x subsampled (YUV-4:1:1, 12 bpp)
 
   Y42B: planar, Y-U-V order, U/V hor 2x subsampled (YUV-4:2:2, 16 bpp)
   YV12: planar, Y-V-U order, U/V hor+ver 2x subsampled (YUV-4:2:0, 12 bpp)
@@ -191,8 +193,8 @@ Preface - (optional) properties for all video formats:
               'mpegversion' = 1/2/4 (INT)
   known fourccs: MPEG, MPGI
 
-4 - DivX 3.x, 4.x and 5.x video
-  mimetype: video/divx
+4 - DivX 3.x, 4.x and 5.x video (divx.com)
+  mimetype: video/x-divx
   optional properties: 'divxversion' = 3/4/5 (INT)
   known fourccs: DIV3, DIV4, DIV5, DIVX, DX50, DIVX, divx
 
@@ -202,7 +204,7 @@ Preface - (optional) properties for all video formats:
   known fourccs: MPG4, MP42, MP43
 
 6 - Motion-JPEG (official and extended)
-  mimetype: video/jpeg
+  mimetype: video/x-jpeg
   known fourccs: MJPG (YUY2 MJPEG), JPEG (any), PIXL (Pinnacle/Miro), VIXL
 
 7 - Sorensen (Quicktime - SVQ1/SVQ3)
@@ -210,11 +212,11 @@ Preface - (optional) properties for all video formats:
   properties: 'svqversion' = 1/3 (INT)
 
 8 - H263 and related codecs
-  mimetype: video/h263
+  mimetype: video/x-h263
   known fourccs: H263, i263, M263, x263, VDOW, VIVO
 
 9 - RealVideo (Real)
-  mimetype: video/realvideo
+  mimetype: video/x-real
 
 10 - Digital Video (DV)
   mimetype: video/dv
@@ -222,22 +224,22 @@ Preface - (optional) properties for all video formats:
   known fourccs: DVSD, dvsd
 
 11 - Windows Media Video 1 and 2 (WMV)
-  mimetype: video/wmv
+  mimetype: video/x-wmv
   properties: 'wmvversion' = 1/2 (INT)
 
-12 - XviD
-  mimetype: video/xvid
+12 - XviD (xvid.org)
+  mimetype: video/x-xvid
   known fourccs: xvid, XVID
 
-13 - 3IVX
-  mimetype: video/3ivx
+13 - 3IVX (3ixv.org)
+  mimetype: video/x-3ivx
   known fourccs: 3IV0, 3IV1, 3IV2
 
 14 - Ogg/Tarkin (Xiph)
   mimetype: video/x-tarkin
 
 15 - VP3
-  mimetype: video/vp3
+  mimetype: video/x-vp3
 
 16 - Ogg/Theora (Xiph, VP3-like)
   mimetype: video/x-theora
@@ -246,10 +248,17 @@ Preface - (optional) properties for all video formats:
   mimetype: video/x-huffyuv
   known fourccs: HFYU
 
-18 - FF Video 1
+18 - FF Video 1 (FFMPEG)
   mimetype: video/x-ffv
   properties: 'ffvversion' = 1 (INT)
 
+19 - H264
+  mimetype: video/x-h264
+
+20 - Indeo 3 (Intel)
+  mimetype: video/x-indeo
+  properties: 'indeoversion' = 3 (INT)
+
 TODO: colorspace identifications for MJPEG? How? Move MPEG4-compatible codecs
       over to video/mpeg with a subtype (xvid, divx3, divx4, divx5, iso, ...)?
       interlacing?
@@ -267,7 +276,7 @@ Preface - (optional) properties for all audio formats:
   properties: 'width' = X (INT) <- memory bits per sample
               'depth' = X (INT) <- used bits per sample
               'signedness' = X (BOOLEAN)
-              'endianness' = 1234/4321 <- endianness of audio stream
+              'endianness' = 1234/4321 (INT)
 
 2 - Raw Audio (floating point format)
   mimetype: audio/x-raw-float
@@ -282,18 +291,19 @@ Preface - (optional) properties for all audio formats:
   mimetype: audio/x-mulaw
 
 5 - MPEG-1 layer 1/2/3 audio
-  mimetype: audio/x-mp3
-  properties: 'layer' = 1/2/3 (INT)
+  mimetype: audio/mpeg
+  properties: 'mpegversion' = 1 (INT)
+              'layer' = 1/2/3 (INT)
 
 6 - Ogg/Vorbis
-  mimetype: audio/vorbis
+  mimetype: audio/x-vorbis
 
 7 - Windows Media Audio 1 and 2 (WMA)
-  mimetype: audio/wma
+  mimetype: audio/x-wma
   properties: 'wmaversion' = 1/2 (INT)
 
 8 - AC3
-  mimetype: audio/a52
+  mimetype: audio/x-a52
 
 9 - FLAC (Free Lossless Audio Codec)
   mimetype: audio/x-flac
@@ -303,18 +313,27 @@ Preface - (optional) properties for all audio formats:
   properties: 'maceversion' = 3/6 (INT)
 
 11 - MPEG-4 AAC
-  mimetype: audio/x-mpeg-aac
+  mimetype: audio/mpeg
   properties: 'mpegversion' = 4 (INT)
-              'systemstream' = FALSE (BOOLEAN)
 
-12 - IMA ADPCM Quicktime
-  mimetype: audio/x-ima-adpcm-quicktime
+12 - (IMA) ADPCM (Quicktime/WAV/Microsoft/4XM)
+  mimetype: audio/x-adpcm
+  properties: 'layout' = "quicktime"/"wav"/"microsoft"/"4xm" (STRING)
 
-13 - IMA ADPCM WAV
-  mimetype: audio/x-ima-adpcm-wav
+  Note: the difference between each of these is the number of
+        samples packaed together per channel. For WAV, for
+        example, each sample is 4 bit, and 8 samples are packed
+        together per channel in the bytestream. For the others,
+        refer to technical documentation.
 
-14 - ADPCM MS (Microsoft?)
-  mimetype: audio/x-adpcm-ms
+13 - RealAudio (Real)
+  mimetype: audio/x-real
+  properties: 'bitrate' = 14400/28800 (INT)
+
+14 - DV Audio
+  mimetype: audio/dv
+
+TODO: adpcm/dv needs confirmation from someone with knowledge...
 
 4 - Status of this document
 ---------------------------