ESR - Movie/Youtube help - General Gaming Forum

<< Comment #1 @ 13:58 CDT, 17 August 2013 >>

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Are you viewing the original resolution in Youtube or the transcoded video (480p, 360p, ...)

Just looked at the link, indeed quite some artifacts

Edited by !nFerNo at 14:02 CDT, 17 August 2013

<< Comment #2 @ 18:45 CDT, 17 August 2013 >>

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function9 - Reply to #1

I had only watched it in 720p, I did just look at it at 480p and to be honest, I see no difference between 480 and 720. And the only things that look worse at 360 is the small amounts of text that are visible during the video.

<< Comment #3 @ 21:32 CDT, 17 August 2013 >>

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kevz

you could try wmv with wma audio. also i remember in sony vegas i had to constantly disable resampling for each clip, else it would turn out real blurry. not much help i guess :F

<< Comment #4 @ 16:40 CDT, 18 August 2013 >>

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pecka_

>>Do some codecs fare a bit better when being uploaded to youtube than others?
afaik no, may be some lossless is better a bit. try encode with ffmpeg: ffmpeg -i ffa_uncompressed.avi -pix_fmt yuv420p -sws_flags lanczos -vf scale=1920:1080 -c:v libx264 -preset veryslow -qp 0 -b:a 512k ffa.mp4

if u have captured content in 720p then better upscale (encode) it to 1080p or even 1440p then u will get better quality at same 720p. sample: http://www.youtube.com/watch?v=CfWhNv3rcyU (it's captured in 720p) and no need to upload at 60fps coz youtube supports maximum 30fps.

Edited by uber9petska at 16:41 CDT, 18 August 2013

<< Comment #5 @ 07:40 CDT, 21 August 2013 >>

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function9

What I don't get is what causes the image to get blocky like that. My videos seem to be taking such a huge hit in quality compared to the local file and compared to other videos I've seen. I managed to get it a bit better capturing at 1080, http://www.youtube.com/watch?v=21o9eGCliF0 , but it's still not great. I don't know if I would even call it good. And the filesize for that was just silly, 522mb for a 2min vid. Media info txt for this:

General
Complete name : C:\Fraps\Movies\fw_1080p.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 522 MiB
Duration : 2mn 11s
Overall bit rate mode : Variable
Overall bit rate : 33.5 Mbps
Writing application : Lavf54.59.106

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 16 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2mn 11s
Bit rate : 33.2 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.534
Stream size : 519 MiB (99%)
Writing library : x264 core 123 r2189 35cf912
Encoding settings : cabac=1 / ref=16 / deblock=1:0:0 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=8 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=300 / keyint_min=30 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=crf / mbtree=1 / crf=20.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2mn 10s
Bit rate mode : Variable
Bit rate : 222 Kbps
Maximum bit rate : 384 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 3.46 MiB (1%)

For comparison, here's a video by someone else, same stage and pov: http://www.youtube.com/watch?v=oY3k3ZTjS-g . That's the kind of quality or close I would expect. It does look like he's using a blur effect, is that what's keeping the image from turning into blocks?

Edited by function9 at 07:43 CDT, 21 August 2013

<< Comment #7 @ 09:20 CDT, 21 August 2013 >>

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Lam | - Reply to #5

In game he's using anti-aliasing which helps the encoder detect shapes and eliminate some noise (like small contrasting dots appearing and disappearing everywhere). I strongly suggest you retry with high level of AA, it should help a bit :)

You're right - he's also blurred everything with frame blending, also helpful in this case. But the non-natural not-so-blurry blending looks worse than your video IMHO, even with the encoding artifacts in yours :)

<< Comment #6 @ 07:47 CDT, 21 August 2013 >>

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Dird

someone said you need to include blur to make the videos seem ok on youtube

dont remember who though

<< Comment #8 @ 10:00 CDT, 21 August 2013 >>

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esdf '

the most obvious and precise reply would be: because youtube is a crap service.

<< Comment #9 @ 11:52 CDT, 21 August 2013 >>

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ashy

related question: is it possible to record QL footage with fraps and decently upload it on YT?
I'm so ignorant about this, is it just about pressing the "start record" button and the stoprecord one?
I've heard the best way to do it is with TGAs, but too much disk space needed (as well as having to record soud separately).

<< Comment #10 @ 11:55 CDT, 21 August 2013 >>

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Jamerio :

Its blocky because the bitrate of the video is low.

You should be able to check this by playing the video file locally via a media player, if after you did everything and it plays ok, and its crap when youtube gets it then you know Youtube is raping it, which is plausible given the site has been suffering from poor quality for a while now.

If its bad before you upload then you're probably losing something when you or youtube compress it.

Try exporting to quicktime, also try uploading a cut down version to vimeo or if you have your own web space, try hosting it yourself just to see.

<< Comment #11 @ 12:22 CDT, 21 August 2013 >>

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Grumlouze

Don't capture/render at 60 fps if you intend to upload the video on youtube. Youtube won't encode at more than 30 fps so it's useless to have a source file with more than 30 fps.
The resampling from 60 fps to 30 fps could also maybe explain the bad quality but it's mostly about the fact that youtube video are encoded at a pretty low bitrate, especially for fast paced video games.
Also it's possible to upload Lagarith files (uncompressed) so you get the best possible compression from youtube, but from my own experience it's still nothing great compared to a proper encode so it's probably not even worth the hassle (longer upload time and longer encode time from youtube).

<< Comment #12 @ 14:13 CDT, 21 August 2013 >>

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T1E '

use a mild-ish degrainer possibly unless it affects quality/aesthetics
I use this for ql clips and it helps compressibility but doesn't make the video flat:

super = MSuper(pel=2, sharp=1)
backward_vec2 = MAnalyse(super, isb = true, delta = 2, overlap=4)
backward_vec1 = MAnalyse(super, isb = true, delta = 1, overlap=4)
forward_vec1 = MAnalyse(super, isb = false, delta = 1, overlap=4)
forward_vec2 = MAnalyse(super, isb = false, delta = 2, overlap=4)
MDegrain2(super, backward_vec1,forward_vec1,backward_vec2,forward_vec2,thSAD=400)

use full hd to upload

I disabled all psy-functions in x264, because it possibly (from theory) doesn't help recompressibility (@youtube)

don't compare with screenshots, they don't tell everything

<< Comment #13 @ 14:49 CDT, 21 August 2013 >>

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danstar

maybe give wolf whisperer a try..