27.10.2023, 02:30
Hey folks,
I'm hoping you can help me determine why my footage did not de-interlace with QTGMC even though it was selected in the options (or why it deinterlaced incorrectly). MediaInfo shows the output as "Progressive", so that seems to indicate it was deinterlaced, but stepping through the frames in VLC shows plenty of frames that are clearly a blending of two interlaced frames. I can de-interlace the footage during encoding in Handbrake, and on-the-fly in VLC in a manner that avoids the issue in the screenshot, so I don't think this is an issue with the source video.
Hybrid is new to me, so I could be missing something simple in the configuration, but hopefully there's enough information here to figure out what needs to be changed. My goal is to de-interlace in the best quality possible and encode into lossless 480p content (which will be used as the source for an upscaling process later on). If you need a little clip of the source footage, I can do a lossless cut with avidemux and upload it, but I've refrained from doing that for now so I don't waste server space.
OS: Windows 10 Pro
Hybrid Version: 2023.03.17.1
Bug Reproduction Steps:
1) Load file (a 480i NTSC file ripped from a DVD source using MakeMKV)
2) Base Tab > Choose container of mkv
3) Base Tab > Choose passthrough all for audio
4) x264 Tab > Choose encoding mode of "constant quantizer (1-pass)
5) x264 Tab > Select AVC Profile/Level of "High4:4:4"
6) x264 Tab > Check the "Lossless" box
7) Filtering Tab > Ensure "QTGMC (Vapoursynth) is selected, and change preset to "Very Slow"
8) Return to Base Tab, set an output directory/file path, and click man-with-shovel to begin processing
Debug and an example frame of the output are attached. Thank you!
I'm hoping you can help me determine why my footage did not de-interlace with QTGMC even though it was selected in the options (or why it deinterlaced incorrectly). MediaInfo shows the output as "Progressive", so that seems to indicate it was deinterlaced, but stepping through the frames in VLC shows plenty of frames that are clearly a blending of two interlaced frames. I can de-interlace the footage during encoding in Handbrake, and on-the-fly in VLC in a manner that avoids the issue in the screenshot, so I don't think this is an issue with the source video.
Hybrid is new to me, so I could be missing something simple in the configuration, but hopefully there's enough information here to figure out what needs to be changed. My goal is to de-interlace in the best quality possible and encode into lossless 480p content (which will be used as the source for an upscaling process later on). If you need a little clip of the source footage, I can do a lossless cut with avidemux and upload it, but I've refrained from doing that for now so I don't waste server space.
OS: Windows 10 Pro
Hybrid Version: 2023.03.17.1
Bug Reproduction Steps:
1) Load file (a 480i NTSC file ripped from a DVD source using MakeMKV)
2) Base Tab > Choose container of mkv
3) Base Tab > Choose passthrough all for audio
4) x264 Tab > Choose encoding mode of "constant quantizer (1-pass)
5) x264 Tab > Select AVC Profile/Level of "High4:4:4"
6) x264 Tab > Check the "Lossless" box
7) Filtering Tab > Ensure "QTGMC (Vapoursynth) is selected, and change preset to "Very Slow"
8) Return to Base Tab, set an output directory/file path, and click man-with-shovel to begin processing
Debug and an example frame of the output are attached. Thank you!