Best option to convert 1080i 50fps to 1080p 25/30

[Fadedown]

What triggered all this mess I'm in is that the Avermedia Game Capture HD II grabs my input at 1080i 50fps. The problem is that, on playback, the Avermedia displays very ugly horizontal lines on certain colors, for example the red.

I can't use that for decent playback and there are no options I can play with to solve that problem. Moving the file on PC, though, that deinterlacing problem is absent. I'd try to use my WD Live TV player, but it's limited to 30fps. That means I'm in this mess where the Avermedia can't play properly ITS OWN FILES, yet my TV player can't either.

So I started trying to convert on PC the file to a 1080p 25fps. But after days of experiments I still don't get very good results.

The weird thing is that converting to 1080p 25fps, without deinterlacing the source, produces a 25fps video that obviously shows the interlacing artifacts, but if I force deinterlacing in the PC player, I get still smooth movement. But the problem is the video is flagged as "progressive", so a normal player won't play it properly, nor I was able to find a way to "override" the settings on the file so it's registered as 25fps interlaced.

Yet, if I instead deinterlace with Yadif, then encode without changing fps (so 50), I get a 1080 progressive 50fps that loses the smooth movement of the previous example. It is the exact same output of 25fps progressive.

So there's something that is getting lost. For some reason the file encoded as progressive, but without the interlaced source, not only is 25fps and still smooth, but it's also of a better quality overall.

I'm also trying to figure out my best options. I only have an old e8400 3ghz cpu, but with a 750 ti. So I thought of using NVENC since it should be much faster while encoding, being hardware. I tried then both MediaCoder and StaxRip. The most I'm getting is 1.3x speed, using FFMpeg as input. Other options seem slower, and using Yadif is what slows down speed too.

Since it's the first time I'm dealing with this I'm wondering if there are better options and if better ways to configure things.

That said, I'm still looking to improve the result of that conversion. So any idea how to convert the best way possible a 1080i 50fps into something within 1080p 30fps?

[usually_quiet]

What triggered all this mess I'm in is that the Avermedia Game Capture HD II grabs my input at 1080i 50fps. The problem is that, on playback, the Avermedia displays very ugly horizontal lines on certain colors, for example the red.

I can't use that for decent playback and there are no options I can play with to solve that problem. Moving the file on PC, though, that deinterlacing problem is absent. I'd try to use my WD Live TV player, but it's limited to 30fps. That means I'm in this mess where the Avermedia can't play properly ITS OWN FILES, yet my TV player can't either.

So I started trying to convert on PC the file to a 1080p 25fps. But after days of experiments I still don't get very good results.

The weird thing is that converting to 1080p 25fps, without deinterlacing the source, produces a 25fps video that obviously shows the interlacing artifacts, but if I force deinterlacing in the PC player, I get still smooth movement. But the problem is the video is flagged as "progressive", so a normal player won't play it properly, nor I was able to find a way to "override" the settings on the file so it's registered as 25fps interlaced.

Yet, if I instead deinterlace with Yadif, then encode without changing fps (so 50), I get a 1080 progressive 50fps that loses the smooth movement of the previous example. It is the exact same output of 25fps progressive.

So there's something that is getting lost. For some reason the file encoded as progressive, but without the interlaced source, not only is 25fps and still smooth, but it's also of a better quality overall.

I'm also trying to figure out my best options. I only have an old e8400 3ghz cpu, but with a 750 ti. So I thought of using NVENC since it should be much faster while encoding, being hardware. I tried then both MediaCoder and StaxRip. The most I'm getting is 1.3x speed, using FFMpeg as input. Other options seem slower, and using Yadif is what slows down speed too.

Since it's the first time I'm dealing with this I'm wondering if there are better options and if better ways to configure things.

That said, I'm still looking to improve the result of that conversion. So any idea how to convert the best way possible a 1080i 50fps into something within 1080p 30fps?

I would have thought the WD TV Live could play your captured video when you tried it.

Your captured video should have a frame rate of 25 fps (or 50 fields per second), as I explained in your other thread. Some programs (VLC is one of them) erroneously report that 1080i video is 50 frames per second instead of the real frame rate, 25 frames per second. MediaInfo is more reliable than most other programs that can report video and audio information.

If you want help, upload a 30-second sample of your captured video that doesn't play correctly to VideoHelp or some other location from which it can be downloaded for analysis.

[usually_quiet]

There is another thread about a similar AVerMedia capture device in which jagabo explained why it appears that there are 50 frames per second even though there are only 25 frames per second.

https://forum.videohelp.com/threads/373430-Loseless-Video-Capture-from-Virgin-Media-V-H...=1#post2406849