Header For MPEG-2 Video Elementary Stream
| Field Name | # of bits | Description |
|---|---|---|
| start code | 32 | 0x000001B3 |
| Horizontal Size | 12 | |
| Vertical Size | 12 | |
| Aspect ratio | 4 | |
| Frame rate code | 4 | |
| Bit rate | 18 | Actual bit rate = bit rate * 400, rounded upwards. Use 0x3FFFF for variable bit rate. |
| Marker bit | 1 | Always 1. |
| VBV buf size | 10 | Size of video buffer verifier = 16*1024*vbv buf size |
| constrained parameters flag | 1 | |
| load intra quantizer matrix | 1 | If bit set then intra quantizer matrix follows, otherwise use default values. |
| intra quantizer matrix | 0 or 64*8 | |
| load non intra quantizer matrix | 1 | If bit set then non intra quantizer matrix follows. |
| non intra quantizer matrix | 0 or 64*8 |
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