Daniel Low
Forum Replies Created
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Your key frame rate is way too high, I suggest every 250 frames if you stick to transcoding at 25fps – general rule of thumb is the keyframe setting should be 10x your frame rate.
You should deinterlace unless your source was shot progressive.
You should perform a multi pass (slower) transcode if you want the best looking output.
Your audio target bitrate is IMO excessive. I’d suggest 192kb/s max.
720p usually refers to 1280x720p – an HD format – ‘p’ stands for progressive, rather than ‘i’ which is interlaced
Lastly, compressor will do better job of this than simply going straight out of Quicktime Pro. Compressor in a dedicated transcoding application with high quality scaling and deinterlacing etc. Quicktime Pro is a ‘player’ with some basic export tools.
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If you’re a perfectionist, stay well clear of Youtube, they get many things badly wrong.
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Sorry, should have read the post properly.
I don’t have an answer but it’s worth bearing in mind that the Animation codec is 8bit 4:4:4 RGB lossless (when set to ‘best’). ProRes, is as you know, is 10bit 4:2:2 YUV. As such you are bound to see a difference but not a huge shift in Gamma, I wouldn’t have thought.
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Youtube’s transcoding methods simply can’t handle complex video without falling apart. That said, can you post a link to your video so we can confirm that’s the issue?
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Yea – there’s been a bunch of stuff about this on the interweb for a while now.
https://www.capria.tv/2007/06/19/prores-422-after-effects-gotcha/
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Episode is the best transcoder on the Mac and one of the better ones out there on any platform. Indeed CBR does not mean ‘flat’ but a constant average over a set period of time.
Divx is based on MPEG-4 advanced simple profile but is not MPEG-4 standards compliant. By all means start with an MPEG-4 template, and adjust it, accessing Divx by choosing to output to MOV with the video encoded as Quicktime (audio as MP3) and then under the video tab choose divx from the drop down of codecs.
Xvid is free
Divx is not__________________________________________________________________
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Maybe this will be of assistance:
https://docs.info.apple.com/article.html?artnum=306389
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Personally I wouldn’t want to crop it to fit, I’d want to pillarbox it (the opposite of letterbox). Compressor calls this ‘Padding’, have a look at page 273 of the compressor 3 user manual for details.
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As the Divx CODEC is Quicktime based, any application working in Quicktime will be able to access the CODEC.
Your best bet is to use a dedicated and professionally supported transcoding application like Episode. This sort of application will provide proper bitrate control as well as many other tools to get the best looking output at the desired bitrate.
You can download a trail of Episode from http://www.flip4mac.com.__________________________________________________________________
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Without hacks, most youtube content looks terrible.
Check this page to see if you’re missing anything
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