Encoding specs from AVI to Youtube?

[Aya_Rei]

If the footage is from a film (or any material shot at 24 FPS), then yes it needs to be inverse telecienced back to 23.976. Not kept at 29.97 nor deinterlaced to 59.94 as that results in duplicated frames. That's how the film footage was able to play by the rules of analog tape, by repeating frames.

If the footage was shot at 29.97 FPS (or if the 24 FPS movie footage is included with footage shot at 29.97i, so something like a documentary or TV broadcast with commercials) then there is no choice but to deinterlace when all the footage has different frame rates.

For YouTube, 720p and above preserves the new 59.94 frame rate (if the footage is deinterlaced, not inverse telecinced. 480p does not preserve any frame rate higher than 30.

But YouTube compression sucks butt for Standard Definition so it's best to upscale to 1920x1440 at most, I think so anyway.

[vwestlife]

YouTube will automatically de-interlace and conform to the proper pixel aspect ratio as long as it is correctly flagged in the uploaded file's metadata. I have uploaded many 4:3 and 16:9 interlaced videos at 720x480 and YouTube automatically de-interlaces them and scales them to 640x480 or 854x480, respectively. Obviously this is far from the best quality, especially since it won't give you the full 59.94fps frame rate, but it does work.

In fact, it will even preserve CEA-608 closed captions and display them properly, even including different colors. For example, on this clip, which was recorded from VHS using a Sony DVD recorder, ripped from the disc, and directly uploaded to YouTube:

https://www.youtube.com/watch?v=dlLXmW2PJUU

[billct97]

Quote:

Originally Posted by Aya_Rei

I myself go by Google's recommended spec sheet for YouTube

I use Selur's Hybrid to encode them as h.264 mp4s, with a bitrate of around 25 Mbps for 1440p videos.

The default in Hybrid for x.264 is 1.5 Mbps.

x264 --preset fast --pass 1 --bitrate 1500

Is that where I should be setting it to 25 Mbps (25000)? I've done some basic side by side comparisons and I'm not sure I see a difference in quality but do get a much larger file once converted.