Hello,
I digitized some old SVHS footage with a matrox mini max card, and when I open it in shotcut there are yellow scan line artifacts at the top of the frame, and some frames seem to lose sync or flicker. The codec is ProRes, and it plays back fine in ffplay, VLC, and Premiere.
FFprobe describes the file thus:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ‘R:MyFile.mov’:
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2025-11-20T20:30:44.000000Z
com.apple.finalcutstudio.media.uuid: 23D09E7F-F458-43EF-AB3E-2075234D5D31
Duration: 00:39:32.47, start: 0.000000, bitrate: 65076 kb/s
Stream #0:0(eng): Video: prores (HQ) (apch / 0x68637061), yuv422p10le(tv, smpte170m/smpte170m/bt709, bottom coded first (swapped)), 720x486, 63524 kb/s, SAR 10:11 DAR 400:297, 29.97 fps, 29.97 tbr, 2997 tbn, 2997 tbc (default)
Metadata:
creation_time : 2025-11-20T20:30:44.000000Z
handler_name : Apple Video Media Handler
encoder : Apple ProRes 422 HQ
timecode : 01:00:00;00
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, 2 channels, s16, 1536 kb/s (default)
Metadata:
creation_time : 2025-11-20T20:30:44.000000Z
handler_name : Apple Sound Media Handler
Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2025-11-20T20:47:25.000000Z
handler_name : Time Code Media Handler
timecode : 01:00:00;00
16.60 A-V: -0.015 fd= 1 aq= 409KB vq= 7445KB sq= 0B f=0/0
Any suggestion what might be causing this issue?
Thanks,
-Chris