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codec/mjpeg/jpeg.go: simplified some more indexing

This commit is contained in:
Saxon 2020-01-07 13:14:18 +10:30
parent 0b848cb01b
commit 52f18cdc58
1 changed files with 2 additions and 3 deletions
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5
codec/mjpeg/jpeg.go
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@ -326,12 +326,11 @@ func writeHeader(p []byte, _type, width, height, nbqTab int, dri uint16, qtable
// Define quantization tables. // Define quantization tables.
binary.BigEndian.PutUint16(p[idx:], 0xff00|codeDQT) binary.BigEndian.PutUint16(p[idx:], 0xff00|codeDQT)
idx += 2
// Calculate table size and create slice for table. // Calculate table size and create slice for table.
ts := 2 + nbqTab*(1+64) ts := 2 + nbqTab*(1+64)
binary.BigEndian.PutUint16(p[idx:], uint16(ts)) binary.BigEndian.PutUint16(p[idx+2:], uint16(ts))
idx += 2 idx += 4
for i := 0; i < nbqTab; i++ { for i := 0; i < nbqTab; i++ {
p[idx] = byte(i) p[idx] = byte(i)