CSNG (File Format): Difference between revisions

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imported>Jackoalan
(Multi-track SNG clarifications)
imported>Jackoalan
Line 144: Line 144:
====Region Commands====
====Region Commands====


After the region data header, the actual playback commands begin. There are only 2 types of commands
After the region data header, the actual playback commands begin. There are only 3 types of commands
in SNG: ''note'' and ''control change''.
in SNG: ''note'', ''control change'', and ''program change''.


=====Delta Time RLE=====
=====Delta Time RLE=====
Line 175: Line 175:
=====Note Command=====
=====Note Command=====


When the two bytes following the delta-time != 0xffff, and the high-bit of the first byte is ''unset'',
When the two bytes following the delta-time != 0xffff, and the high-bits of both bytes are ''unset'',
this is a '''note command'''.  
this is a '''note command'''.  


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=====Control Change Command=====
=====Control Change Command=====


When the two bytes following the delta-time != 0xffff, and the high-bit of the first byte is ''set'',
When the two bytes following the delta-time != 0xffff, and the high-bits of both bytes are ''set'',
this is a '''control change command'''.
this is a '''control change command'''.


Line 224: Line 224:
| 0x2
| 0x2
| colspan=2 {{unknown|End of control change}}
| colspan=2 {{unknown|End of control change}}
|}
=====Program Change Command=====
When the two bytes following the delta-time != 0xffff, and the high-bit of the first byte is ''set'',
this is a '''program change command'''.
See the [https://www.midi.org/specifications/item/gm-level-1-sound-set standard MIDI program numbers] for details.
{| class="wikitable"
! Offset
! Size
! Description
|-
| 0x0
| 1
| '''Program'''; AND with 0x7f for the value
|-
| 0x1
| 1
| '''Padding'''; always zero
|-
| 0x2
| colspan=2 {{unknown|End of program change}}
|}
|}


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