mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-23 04:06:39 +00:00
25cab0e1f4
* bump exif-terminator to latest version * add and test giant turnip from turnip.farm * don't error if content property is nil
213 lines
3.2 KiB
Go
213 lines
3.2 KiB
Go
package jpegstructure
|
|
|
|
import (
|
|
"github.com/dsoprea/go-logging"
|
|
)
|
|
|
|
const (
|
|
// MARKER_SOI marker
|
|
MARKER_SOI = 0xd8
|
|
|
|
// MARKER_EOI marker
|
|
MARKER_EOI = 0xd9
|
|
|
|
// MARKER_SOS marker
|
|
MARKER_SOS = 0xda
|
|
|
|
// MARKER_SOD marker
|
|
MARKER_SOD = 0x93
|
|
|
|
// MARKER_DQT marker
|
|
MARKER_DQT = 0xdb
|
|
|
|
// MARKER_APP0 marker
|
|
MARKER_APP0 = 0xe0
|
|
|
|
// MARKER_APP1 marker
|
|
MARKER_APP1 = 0xe1
|
|
|
|
// MARKER_APP2 marker
|
|
MARKER_APP2 = 0xe2
|
|
|
|
// MARKER_APP3 marker
|
|
MARKER_APP3 = 0xe3
|
|
|
|
// MARKER_APP4 marker
|
|
MARKER_APP4 = 0xe4
|
|
|
|
// MARKER_APP5 marker
|
|
MARKER_APP5 = 0xe5
|
|
|
|
// MARKER_APP6 marker
|
|
MARKER_APP6 = 0xe6
|
|
|
|
// MARKER_APP7 marker
|
|
MARKER_APP7 = 0xe7
|
|
|
|
// MARKER_APP8 marker
|
|
MARKER_APP8 = 0xe8
|
|
|
|
// MARKER_APP10 marker
|
|
MARKER_APP10 = 0xea
|
|
|
|
// MARKER_APP12 marker
|
|
MARKER_APP12 = 0xec
|
|
|
|
// MARKER_APP13 marker
|
|
MARKER_APP13 = 0xed
|
|
|
|
// MARKER_APP14 marker
|
|
MARKER_APP14 = 0xee
|
|
|
|
// MARKER_APP15 marker
|
|
MARKER_APP15 = 0xef
|
|
|
|
// MARKER_COM marker
|
|
MARKER_COM = 0xfe
|
|
|
|
// MARKER_CME marker
|
|
MARKER_CME = 0x64
|
|
|
|
// MARKER_SIZ marker
|
|
MARKER_SIZ = 0x51
|
|
|
|
// MARKER_DHT marker
|
|
MARKER_DHT = 0xc4
|
|
|
|
// MARKER_JPG marker
|
|
MARKER_JPG = 0xc8
|
|
|
|
// MARKER_DAC marker
|
|
MARKER_DAC = 0xcc
|
|
|
|
// MARKER_SOF0 marker
|
|
MARKER_SOF0 = 0xc0
|
|
|
|
// MARKER_SOF1 marker
|
|
MARKER_SOF1 = 0xc1
|
|
|
|
// MARKER_SOF2 marker
|
|
MARKER_SOF2 = 0xc2
|
|
|
|
// MARKER_SOF3 marker
|
|
MARKER_SOF3 = 0xc3
|
|
|
|
// MARKER_SOF5 marker
|
|
MARKER_SOF5 = 0xc5
|
|
|
|
// MARKER_SOF6 marker
|
|
MARKER_SOF6 = 0xc6
|
|
|
|
// MARKER_SOF7 marker
|
|
MARKER_SOF7 = 0xc7
|
|
|
|
// MARKER_SOF9 marker
|
|
MARKER_SOF9 = 0xc9
|
|
|
|
// MARKER_SOF10 marker
|
|
MARKER_SOF10 = 0xca
|
|
|
|
// MARKER_SOF11 marker
|
|
MARKER_SOF11 = 0xcb
|
|
|
|
// MARKER_SOF13 marker
|
|
MARKER_SOF13 = 0xcd
|
|
|
|
// MARKER_SOF14 marker
|
|
MARKER_SOF14 = 0xce
|
|
|
|
// MARKER_SOF15 marker
|
|
MARKER_SOF15 = 0xcf
|
|
)
|
|
|
|
var (
|
|
jpegLogger = log.NewLogger("jpegstructure.jpeg")
|
|
jpegMagicStandard = []byte{0xff, MARKER_SOI, 0xff}
|
|
jpegMagic2000 = []byte{0xff, 0x4f, 0xff}
|
|
|
|
markerLen = map[byte]int{
|
|
0x00: 0,
|
|
0x01: 0,
|
|
0xd0: 0,
|
|
0xd1: 0,
|
|
0xd2: 0,
|
|
0xd3: 0,
|
|
0xd4: 0,
|
|
0xd5: 0,
|
|
0xd6: 0,
|
|
0xd7: 0,
|
|
0xd8: 0,
|
|
0xd9: 0,
|
|
0xda: 0,
|
|
|
|
// J2C
|
|
0x30: 0,
|
|
0x31: 0,
|
|
0x32: 0,
|
|
0x33: 0,
|
|
0x34: 0,
|
|
0x35: 0,
|
|
0x36: 0,
|
|
0x37: 0,
|
|
0x38: 0,
|
|
0x39: 0,
|
|
0x3a: 0,
|
|
0x3b: 0,
|
|
0x3c: 0,
|
|
0x3d: 0,
|
|
0x3e: 0,
|
|
0x3f: 0,
|
|
0x4f: 0,
|
|
0x92: 0,
|
|
0x93: 0,
|
|
|
|
// J2C extensions
|
|
0x74: 4,
|
|
0x75: 4,
|
|
0x77: 4,
|
|
}
|
|
|
|
markerNames = map[byte]string{
|
|
MARKER_SOI: "SOI",
|
|
MARKER_EOI: "EOI",
|
|
MARKER_SOS: "SOS",
|
|
MARKER_SOD: "SOD",
|
|
MARKER_DQT: "DQT",
|
|
MARKER_APP0: "APP0",
|
|
MARKER_APP1: "APP1",
|
|
MARKER_APP2: "APP2",
|
|
MARKER_APP3: "APP3",
|
|
MARKER_APP4: "APP4",
|
|
MARKER_APP5: "APP5",
|
|
MARKER_APP6: "APP6",
|
|
MARKER_APP7: "APP7",
|
|
MARKER_APP8: "APP8",
|
|
MARKER_APP10: "APP10",
|
|
MARKER_APP12: "APP12",
|
|
MARKER_APP13: "APP13",
|
|
MARKER_APP14: "APP14",
|
|
MARKER_APP15: "APP15",
|
|
MARKER_COM: "COM",
|
|
MARKER_CME: "CME",
|
|
MARKER_SIZ: "SIZ",
|
|
|
|
MARKER_DHT: "DHT",
|
|
MARKER_JPG: "JPG",
|
|
MARKER_DAC: "DAC",
|
|
|
|
MARKER_SOF0: "SOF0",
|
|
MARKER_SOF1: "SOF1",
|
|
MARKER_SOF2: "SOF2",
|
|
MARKER_SOF3: "SOF3",
|
|
MARKER_SOF5: "SOF5",
|
|
MARKER_SOF6: "SOF6",
|
|
MARKER_SOF7: "SOF7",
|
|
MARKER_SOF9: "SOF9",
|
|
MARKER_SOF10: "SOF10",
|
|
MARKER_SOF11: "SOF11",
|
|
MARKER_SOF13: "SOF13",
|
|
MARKER_SOF14: "SOF14",
|
|
MARKER_SOF15: "SOF15",
|
|
}
|
|
)
|