MIME type的全称是 Multipurpose Internet Mail Extensions (MIME) ，可以标志一个文件的类型。
Table of Audio Types
| Media Type | Description |
| All audio types. | |
| audio/* | All audio types |
| channels | integer |
| channel-mask | bitmask |
| format | string |
| layout | string |
| All raw audio types. | |
| audio/x-raw | Unstructured and uncompressed raw audio data. |
| All encoded audio types. | |
| audio/x-ac3 | AC-3 or A52 audio streams. |
| audio/x-adpcm | ADPCM Audio streams. |
| block_align | integer |
| audio/x-cinepak | Audio as provided in a Cinepak (Quicktime) stream. |
| audio/x-dv | Audio as provided in a Digital Video stream. |
| audio/x-flac | Free Lossless Audio codec (FLAC). |
| audio/x-gsm | Data encoded by the GSM codec. |
| audio/x-alaw | A-Law Audio. |
| audio/x-mulaw | Mu-Law Audio. |
| audio/x-mace | MACE Audio (used in Quicktime). |
| audio/mpeg | Audio data compressed using the MPEG audio encoding scheme. |
| framed | boolean |
| layer | integer |
| bitrate | integer |
| audio/x-qdm2 | Data encoded by the QDM version 2 codec. |
| audio/x-pn-realaudio | Realmedia Audio data. |
| audio/x-speex | Data encoded by the Speex audio codec |
| audio/x-vorbis | Vorbis audio data |
| audio/x-wma | Windows Media Audio |
| audio/x-paris | Ensoniq PARIS audio |
| audio/x-svx | Amiga IFF / SVX8 / SV16 audio |
| audio/x-nist | Sphere NIST audio |
| audio/x-voc | Sound Blaster VOC audio |
| audio/x-ircam | Berkeley/IRCAM/CARL audio |
| audio/x-w64 | Sonic Foundry's 64 bit RIFF/WAV |
Table of Video Types
| Media Type | Description |
| All video types. | |
| video/* | All video types |
| height | integer |
| framerate | fraction |
| max-framerate | fraction |
| views | integer |
| interlace-mode | string |
| chroma-site | string |
| colorimetry | string |
| pixel-aspect-ratio | fraction |
| format | string |
| All raw video types. | |
| video/x-raw | Unstructured and uncompressed raw video data. |
| All encoded video types. | |
| video/x-3ivx | 3ivx video. |
| video/x-divx | DivX video. |
| video/x-dv | Digital Video. |
| video/x-ffv | FFMpeg video. |
| video/x-h263 | H-263 video. |
| h263version | string |
| video/x-h264 | H-264 video. |
| video/x-huffyuv | Huffyuv video. |
| video/x-indeo | Indeo video. |
| video/x-intel-h263 | H-263 video. |
| video/x-jpeg | Motion-JPEG video. |
| video/mpeg | MPEG video. |
| systemstream | boolean |
| video/x-msmpeg | Microsoft MPEG-4 video deviations. |
| video/x-msvideocodec | Microsoft Video 1 (oldish codec). |
| video/x-pn-realvideo | Realmedia video. |
| video/x-rle | RLE animation format. |
| depth | integer |
| palette_data | GstBuffer |
| video/x-svq | Sorensen Video. |
| video/x-tarkin | Tarkin video. |
| video/x-theora | Theora video. |
| video/x-vp3 | VP-3 video. |
| video/x-wmv | Windows Media Video |
| video/x-xvid | XviD video. |
| All image types. | |
| image/gif | Graphics Interchange Format. |
| image/jpeg | Joint Picture Expert Group Image. |
| image/png | Portable Network Graphics Image. |
| image/tiff | Tagged Image File Format. |
Table of Container Types
| Media Type | Description |
| video/x-ms-asf | Advanced Streaming Format (ASF). |
| video/x-msvideo | AVI. |
| video/x-dv | Digital Video. |
| video/x-matroska | Matroska. |
| video/mpeg | Motion Pictures Expert Group System Stream. |
| application/ogg | Ogg. |
| video/quicktime | Quicktime. |
| application/vnd.rn-realmedia | RealMedia. |
| audio/x-wav | WAV. |
