主流视音频平台参数，Wiki上的，包括世界上主流的视音频平台（YouTube，优酷等，很全），
包括视频的编码方式，分辨率，码率，播放器等等信息
http://en.wikipedia.org/wiki/Comparison_of_video_hosting_services
摘录一个表格部分内容如下（个人感觉信息有点偏老）：
Service | Video Player | Streaming Video Format | Resolution | Video bitrate (kbit) | Audio bitrate (kbit) | |
| 640x480 | ? | ? | |||
1,280x720 | ? | ? | ||||
464x352 | 340 kbit/s 30 frame/s | mp3 CBR 64.0 kbit/s | ||||
1,280x720 | ? | ? | ||||
unlimited | unlimited | unlimited | ||||
1,280x720 | ? | mp3 CBR 96.0 kbit/s AAC LC VBR | ||||
400x320 | 260 kbit/s 25 frame/s, mencoder | mp3 CBR 64.0 kbit/s lavc codec | ||||
? | 1,280x720 | ? | ? | |||
Sorenson codec, H.264Download | 480x360 | 420 kbit/s 29.97frame/s | mp3 96 kbit/s | |||
Google Video | Sorenson codec, H.264Download | 320x240 | variable (24.99frame/s) | AAC 124 kbit/s | ||
HD share (closed) | 1,280x720 | ? | ? | |||
? | ? | ? | ||||
unlimited | unlimited | unlimited | ||||
|
| ? | ? | ? | ||
640x384 | unlimited[42] | ? | ||||
|
| ? | ? | ? | ||
690x518 (min) | 700 kbs (min) | AAC 96 kbs (min) | ||||
|
| ? | ? | ? | ||
|
| ? | ? | ? | ||
640x480 | variable | ? | ||||
480x392 | ? | ? | ||||
640x480 (4:3), 640x360 (16:9) | 1,000 | ? | ||||
1,280x720 | ? | ? | ||||
Stage6 (closed) | 1,920x1080 | ? | ? | |||
? | ? | ? | ||||
540x304 | 512 | 64 | ||||
1,280x720 | variable, average 1600, max 5000 | 128 | ||||
1,280x720 | ? | ? | ||||
1,920x1080[46] | variable, average 2000, max 5000 | 320 | ||||
VReel (closed) | unlimited | unlimited | unlimited | |||
? | ? | 128 | ||||
| ? | ? | ? | |||
? | ? | ? | ||||
2,048x1,536 | variable[50] | 192 | ||||