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GetMatrix: prefer frameprops of frame 0 #3

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GetMatrix: prefer frameprops of frame 0 #3

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3 changes: 3 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -66,3 +66,6 @@ docs/_build/

# PyBuilder
target/

#VSCode
.vscode/
20 changes: 20 additions & 0 deletions mvsfunc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,7 @@


import vapoursynth as vs
import warnings
import functools
import math

Expand Down Expand Up @@ -2449,6 +2450,10 @@ def GetMatrix(clip, matrix=None, dIsRGB=None, id=False):
if sColorFamily == vs.COMPAT:
raise ValueError(funcName + ': color family *COMPAT* is not supported!')

# Get frameprops of input frame 0
sFrame = clip.get_frame(0)
sFrameProps = sFrame.props

# Get properties of output clip
if dIsRGB is None:
dIsRGB = not sIsRGB
Expand Down Expand Up @@ -2477,6 +2482,7 @@ def GetMatrix(clip, matrix=None, dIsRGB=None, id=False):
# Convert to string format
if matrix is None:
matrix = "Unspecified"
unspec = True
elif not isinstance(matrix, int) and not isinstance(matrix, str):
raise TypeError(funcName + ': \"matrix\" must be an int or a str!')
else:
Expand Down Expand Up @@ -2516,6 +2522,20 @@ def GetMatrix(clip, matrix=None, dIsRGB=None, id=False):
else:
matrix = (6 if id else "601") if SD else (9 if id else "2020") if UHD else (1 if id else "709")

# Check automatic determination conform frameprops, if not, frameprops take precedence
if unspec:
sMatrix = sFrameProps['_Matrix']
dictMatrix = {0:"RGB", 1:"709", 5:"601", 6:"601", 8:"YCgCo", 9:"2020", 10:"2020"}
if not id:
sMatrix = dictMatrix[sMatrix]
if not matrix is sMatrix:
matrix = sMatrix
warnings.warn(funcName + 'automatic determination not conform frameprops, prefer frameprops.')
else:
if not matrix is sMatrix or (matrix == 6 and sMatrix == 5) or (matrix == 9 and sMatrix == 10):
matrix = sMatrix
warnings.warn(funcName + ': automatic determination not conform frameprops, prefer frameprops.')

# Output
return matrix
################################################################################################################################
Expand Down