VideoFrame.to_ndarray(format="rgb24") raises [Errno 95] Operation not supported for NVDEC frames with reserved colorspace metadata (regression from 16.1.0)

[bazookanu]

Calling VideoFrame.to_ndarray(format="rgb24") on frames decoded by h264_cuvid/hevc_cuvid (NVDEC) raises [Errno 95] Operation not supported in 17.0.0.

This worked correctly in 16.1.0.

Error

[swscaler] Unsupported input (Operation not supported): fmt:nv12 csp:gbr prim:reserved trc:reserved -> fmt:rgb24 csp:gbr prim:reserved trc:reserved OSError: [Errno 95] Operation not supported

Reproducing

import av                                                                                                          
                  
codec = av.Codec("hevc_cuvid", "r")                                                                                
ctx = av.CodecContext.create(codec)
ctx.options = {"surfaces": "8"}                                                                                    
                                                                                                                   
with open("sample.h265", "rb") as f:                                                                               
    raw = f.read()                                                                                                 
                                                                                                                   
packet = av.Packet(raw)                                                                                            
frames = ctx.decode(packet)                                                                                        
for frame in frames:                                                                                               
    img = frame.to_ndarray(format="rgb24")  # raises in 17.0.0, works in 16.1.0

• PyAV 16.1.0: works
• PyAV 17.0.0: fails
• Decoder: hevc_cuvid (NVDEC)
• Source streams: H.265