Video lose quality when imported in Vegas Pro 20

Matteo-Erdas wrote on 1/17/2023, 6:11 AM

I would like to use a video recorded with my Motorola Smartphone but when I import it on Vegas pro 20 I lose quality on the sequence of frames, let's say I lose fluidity. The same loss of quality obviously also remains in the export of the edited video.This is the Media info of the source file. Could anyone help me? thanks

Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (isom/mp42)
File size                                : 2.04 GiB
Duration                                 : 4 min 39 s
Overall bit rate                         : 62.7 Mb/s
Encoded date                             : UTC 2023-01-14 15:10:33
Tagged date                              : UTC 2023-01-14 15:10:33
com.android.version                      : 12
com.android.manufacturer                 : motorola
com.android.model                        : moto g200 5G

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L1
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 4 min 39 s
Source duration                          : 4 min 39 s
Bit rate                                 : 62.5 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 30.047 FPS
Minimum frame rate                       : 15.000 FPS
Maximum frame rate                       : 10 000.000 FPS
Original frame rate                      : 30.000 FPS
Standard                                 : PAL
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.251
Stream size                              : 2.03 GiB (100%)
Source stream size                       : 2.03 GiB (100%)
Title                                    : VideoHandle
Language                                 : English
Encoded date                             : UTC 2023-01-14 15:10:33
Tagged date                              : UTC 2023-01-14 15:10:33
Color range                              : Limited
Color primaries                          : BT.2020
colour_primaries_Original                : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.2020 non-constant
matrix_coefficients_Original             : BT.709
mdhd_Duration                            : 279145
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 4 min 39 s
Bit rate mode                            : Constant
Bit rate                                 : 256 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 8.52 MiB (0%)
Title                                    : SoundHandle
Language                                 : English
Encoded date                             : UTC 2023-01-14 15:10:33
Tagged date                              : UTC 2023-01-14 15:10:33


 

 

Comments

RogerS wrote on 1/17/2023, 6:14 AM

Something's quite off with the framerates it's reporting:

Minimum frame rate                       : 15.000 FPS

Maximum frame rate                       : 10 000.000 FPS

Original frame rate                      : 30.000 FPS

Maybe try re-encoding to constant framerate with Handbrake or Shutter Encoder and see if that works better in Vegas.

 

Dexcon wrote on 1/17/2023, 6:17 AM

Your video has been recorded at Variable Frame Rate (VFR) which, for many, is a frame rate that Vegas Pro doesn't like and likely explains poor timeline performance. The regular advice given on the forum over many years re VFR is to transcode your footage to Constant Frame Rate (CFR) via a transcoder such as HandBrake.

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andyrpsmith wrote on 1/17/2023, 6:44 PM

Maybe you could upload a clip to a sharing site so we could download it and see how we get on with it?

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Matteo-Erdas wrote on 1/18/2023, 1:43 AM

Ok I try to transcode it with HandBrake. The problem now is: How should I configure HandBrake to keep the original quality of the video and at the same time convert it for Vegas Pro 20 use? thanks

3POINT wrote on 1/18/2023, 1:50 AM

An easier to use app is Shutter Encoder for this purpose. Shutter Encoder has also the advantage that it has dozens of other features which makes it the Swiss Knife for every serious video editor.

RogerS wrote on 1/18/2023, 1:58 AM

Try the production standard preset and in the video tab go to constant framerate. In advanced set keyint= your framerate (30, 60, etc.) keyint=60:keyint_min=1 for example.

Give it a decent enough bitrate- though that depends on source material quality. For RF 23 is average and something like 17-20 extra bitrate.