UMID: Difference between revisions
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Panasonic UMID is an SEI in AVC-Intra that many decoders look for. | Panasonic UMID is an SEI in AVC-Intra that many decoders look for. | ||
Some documentation of it will come here whilst it is reverse engineered. Following UMID characters: | Some documentation of it will come here whilst it is reverse engineered. It is quite a complex structure so we will aim to document the bare minimum needed to implement AVC-Intra. Following UMID characters: | ||
{| border="1" | {| border="1" | ||
Line 13: | Line 13: | ||
|0 | |0 | ||
|0x13 | |0x13 | ||
|Always | |Always 0x13 | ||
|- | |||
|1 | |||
|0xff | |||
|Always 0xff | |||
|- | |||
|2+3 | |||
|?? | |||
|Some sort of counter but not all encoders increment. Would a playout server want this to increment? | |||
|- | |||
|4 | |||
|0xff | |||
|Always 0xff | |||
|- | |||
|5+6 | |||
|?? | |||
|Seems to both be zero | |||
|- | |||
|7 | |||
|0xff | |||
|Always 0xff | |||
|- | |||
|8 | |||
|0x14 | |||
|Always 0x14 | |||
|- | |- | ||
|} | |} |
Latest revision as of 09:39, 9 October 2013
This article refers to the UMID SEI in Panasonic AVC-Intra files. UMID itself is a larger concept that is beyond the current scope of this page.
Panasonic UMID is an SEI in AVC-Intra that many decoders look for.
Some documentation of it will come here whilst it is reverse engineered. It is quite a complex structure so we will aim to document the bare minimum needed to implement AVC-Intra. Following UMID characters:
Byte offset | Value (if any) | Comments |
---|---|---|
0 | 0x13 | Always 0x13 |
1 | 0xff | Always 0xff |
2+3 | ?? | Some sort of counter but not all encoders increment. Would a playout server want this to increment? |
4 | 0xff | Always 0xff |
5+6 | ?? | Seems to both be zero |
7 | 0xff | Always 0xff |
8 | 0x14 | Always 0x14 |