FFDSHOW: can I do in ffdshow what I do with "-vcodec copy" in ffmpeg?

[marcorocchini]

FFMPEG -i input.mxf -vcodec copy -an output.avi

Can I use virtualdub/ffdshow so I can achieve output.avi as ffmpeg?

but I have to set ffshow/encoder in MPEG2-I frame

can ffdshow support mpeg2 encoding?

because my source mxf is mpeg2:


Video
ID : 2
Format : MPEG Video
Commercial name : XDCAM HD422
Format version : Version 2
Format profile : 4:2:2@High
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : M=3, N=12
Format_Settings_Wrapping : Frame
Duration : 36s 600ms
Bit rate : 50.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.965
Stream size : 218 MiB (83%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Thanks!

[poisondeathray]

Not sure if this answers your question, but the difference is -vcodec copy in ffmpeg means a stream copy (no quality loss)

But ffdshow as a VFW encoder is re-encoding the video (it's receiving uncompressed video beforehand as input) . So you incur quality loss

can ffdshow support mpeg2 encoding?

If you don't mind losing quality or re-encoding, FFDShow MPEG2 VFW encoder has been removed in the last few years - you need to find an old version of ffdshow . Someone tested these and found out which # was the latest one that still has MPEG2 encoding - do a search for that thread if you're still interested

https://www.videohelp.com/tools/ffdshow/old-versions#download