Render Guidance for VP17

BobMoyer wrote on 4/9/2023, 1:07 PM

Going to attempt to render a security MP4 file to upload to YouTube. I've never dealt with this type of file but I would like to get as good as possible render. As mentioned in the title this is for VegasPro 17 and below is the MediaInfo. Any ideas would be appreciated:

 

General
Complete name                            : C:\Users\Robert Moyer\Videos\Fire Video\Fire 3.11.2023.MP4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 112 MiB
Duration                                 : 18 min 39 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 839 kb/s
Writing application                      : Lavf58.76.100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4.1
Format settings                          : CABAC / 1 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 1 frame
Format settings, GOP                     : M=1, N=40
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 18 min 39 s
Bit rate mode                            : Variable
Bit rate                                 : 791 kb/s
Maximum bit rate                         : 1 920 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 20.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.019
Stream size                              : 106 MiB (94%)
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 18 min 37 s
Bit rate mode                            : Constant
Bit rate                                 : 48.0 kb/s
Channel(s)                               : 1 channel
Channel layout                           : C
Sampling rate                            : 16.0 kHz
Frame rate                               : 15.625 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 6.28 MiB (6%)
Default                                  : Yes
Alternate group                          : 1

Comments

j-v wrote on 4/9/2023, 2:23 PM

While YT rerenders the file, this would be my solution

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BobMoyer wrote on 4/9/2023, 2:43 PM

Thank you for your quick response. I am at a holiday gathering today but I will try this late tomorrow and see how it goes. I will post a response on Tuesday. Thanks again.

mark-y wrote on 4/9/2023, 2:55 PM

With 800Kbps 1080p source, you won't need to worry too much about "as good as possible render." It will be mediocre regardless of what you do for YT.

Dexcon wrote on 4/10/2023, 8:42 AM

With 800Kbps 1080p source, you won't need to worry too much about "as good as possible render." It will be mediocre regardless of what you do for YT.

Agreed. The bit rate is less than the average VCD bitrate of 1,152 Kbps which harks back 20+ years ago pre-DVD. And the later SVCD (still using CD media) had an average bit rate of 2,500 Kbps - but was still really bad in comparison to DVD technology.

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RogerS wrote on 4/10/2023, 8:51 AM

Not sure these bitrates are directly comparable as compression has gotten more efficient since the days of MPEG-1 CBR VCDs. Still, that bitrate is low for 1080p AVC so my goal would be not to look worse than the source media.

rraud wrote on 4/10/2023, 10:00 AM

The 'standard' audio-for-video sample rate is 48kHz. I would also recommend an audio bit rate of at least 96 kbs.

BobMoyer wrote on 4/10/2023, 10:02 AM

@j-v,

I will tag your suggestion as the solution. As everyone had pointed out the low bit rate is less than optimal, but your render solution helped me out. Thanks again.

Edit: In case I did not make it very clear, this video was taken by a security cam at 3:00 am with very little ambient light. I discarded the audio. The footage was of a community fire that destroyed 3 separate homes.