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Ryan Oldenburg 2022-05-25 19:10:24 -05:00
parent 102215a611
commit dd2571d3a6
1 changed files with 5 additions and 7 deletions
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12
src/pixie/fileformats/jpeg.nim
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@ -73,11 +73,11 @@ type
quantizationTables: array[4, array[64, uint8]] quantizationTables: array[4, array[64, uint8]]
huffmanTables: array[2, array[4, Huffman]] # 0 = DC, 1 = AC huffmanTables: array[2, array[4, Huffman]] # 0 = DC, 1 = AC
components: seq[Component] components: seq[Component]
maxYScale, maxXScale: int
mcuWidth, mcuHeight, numMcuWide, numMcuHigh: int
scanComponents: int scanComponents: int
spectralStart, spectralEnd: int spectralStart, spectralEnd: int
successiveApproxLow, successiveApproxHigh: int successiveApproxLow, successiveApproxHigh: int
maxYScale, maxXScale: int
mcuWidth, mcuHeight, numMcuWide, numMcuHigh: int
componentOrder: seq[int] componentOrder: seq[int]
progressive: bool progressive: bool
restartInterval: int restartInterval: int
@ -324,9 +324,7 @@ proc decodeSOF0(state: var DecoderState) =
if state.progressive: if state.progressive:
component.widthCoeff = component.widthStride div 8 component.widthCoeff = component.widthStride div 8
component.heightCoeff = component.heightStride div 8 component.heightCoeff = component.heightStride div 8
component.coeff.setLen( component.coeff.setLen(component.widthStride * component.heightStride)
component.widthStride * component.heightStride
)
if len != 0: if len != 0:
failInvalid() failInvalid()
@ -428,11 +426,11 @@ proc decodeSOS(state: var DecoderState) =
failInvalid() failInvalid()
var component: int var component: int
while component < 3: while component < state.components.len:
if state.components[component].id == id: if state.components[component].id == id:
break break
inc component inc component
if component == 3: if component == state.components.len:
failInvalid() # Not found failInvalid() # Not found
state.components[component].huffmanAC = huffmanAC.int state.components[component].huffmanAC = huffmanAC.int