Export Video as AVI

Comments

AAProds wrote on 3/2/2024, 8:28 PM

@Jamil-Taylor

Jami, I don't want to appear to be rude but it appears you don't understand the relationship between bitrate and file size. At a set bitrate and over a set time, there can only be one file size, regardless of the program or codec used (there can be minor differences, as John has pointed out, but the differences are marginal). I proved that above with my example.

The file is slightly larger only due to a change in audio codec. 

Not so. The reason that file is only "slightly larger" is because it is 40 minutes shorter (2hr 58min). Had it been the length of the original video (3hr41min), at a bitrate of 8220, it probably would be 13-14GB.

The only way to determine if a particular process (yours being to AVI>DivX or mine, direct to HEVC) is "better" is to create a file of each using same bitrate (resulting in the same file size) and then subjectively comparing them for visual quality. You will then be able to say the DivX route is better (or the same, or worse).

One last thing; a smaller file is not better. A smaller file means less data is stored and therefore less detail is kept. If you want better quality, you have to increase the file size (by increasing the bitrate). That said, different codecs are more "efficient", meaning for the same visual quality, they are smaller/use less bitrate. For example, HEVC/H265 is better than AVC/H264 because it has a better compression system, meaning for the same visual quality, the file size is smaller. This may be the case with DivX verses HEVC, but we haven't done that comparison yet. I certainly wouldn't blindly believe the marketing that DivX is better than anything else without actually testing it against exactly the same video encoded by another codec such as HEVC.

 

Last changed by AAProds on 3/3/2024, 3:40 AM, changed a total of 3 times.

All my forum comments are based on or refer to my System 1.

My struggle is over! I built my (now) system 2 in 2011 when DV was king and MPEG 2 was just coming onto the scene and I needed a more powerful system to cope. Since then we've advanced to MP4 and to bigger and bigger resolutions. I was really suffering, not so much in editing (with proxies) but in encoding, which just took ages. A video, with Neat Video noise reduction applied, would encode at 12% of film speed. My new system 1 does the same job at 160% of film speed. Marvellous. I'm keeping my old system as a capture station for analogue video tapes and DV.

System 1

Windows 11 v23H2 severely modified by Openshell and ExplorerPatcher

Power supply: 850W Cooler Master (should have got modular)

CPU: Intel i7 13700K running at 3400mhz, cooled by a Kraken 2x140mm All In One liquid cooler.

RAM: 64gb (2x32gb sticks) G.Skill "Ripjaws" DDR4 3200Mhz

GPU 1: iGPU UHD 770

GPU 2: NVidia RTX 3060Ti Windforce 8gb

C drive: NVME 500gb

Various other SSD and HDDs.

Monitor: 27"/68cm Samsung, 2560 x 1440, 43 pixels/cm.

MEP 2021 version 20.0.1.80

Movie Studio 2023 version 22.0.3.172

Magix Video Easy version 7.0.1.145

System 2

(Still in use for TV and videotape capture)

Windows 10 v22H2

CPU: i5-750 at 2670mhz with 12gb RAM

Onboard IEEE1394 (Firewire) port

GPU: ATI Radeon HD 4770 (512mb) which is ignored by MEP

Hard drives: C Drive 256gb SSD, various other HDDs.

Monitor: Dell 22"/56cm, 1680x1050, 35 pixels/cm

MEP 2021 version 20.0.1.80

Movie Studio 2023 version 22.0.3.172

VPX 12

CubeAce wrote on 3/2/2024, 9:21 PM

@Jamil-Taylor

Hi.

I am curious as to why no-one so far has asked for the MediaInfo data on the original file you are trying to copy. The reason for why the program produced two files may lie in that information.

Ray.

 

 

Windows 10 Enterprise. Version 22H2 OS build 19045.5011

Direct X 12.1 latest hardware updates for Western Digital hard drives.

Asus ROG STRIX Z390-F Gaming motherboard Rev 1.xx with Supreme FX inboard audio using the S1220A code. Driver No 6.0.8960.1 Bios version 1401

Intel i9900K Coffee Lake 3.6 to 5.1GHz CPU with Intel UHD 630 Graphics .Driver version Graphics Driver 31.0.101.2130 for 7th-10th Gen Intel® with 64GB of 3200MHz Corsair DDR4 ram.

1000 watt EVGA modular power supply.

1 x 250GB Evo 970 NVMe: drive for C: drive backup 1 x 1TB Sabrent NVMe drive for Operating System / Programs only. 1X WD BLACK 1TB internal SATA 7,200rpm hard drives.1 for internal projects, 1 for Library clips/sounds/music/stills./backup of working projects. 1x500GB SSD current project only drive, 2x WD RED 2TB drives for latest footage storage. Total 21TB of 8 external WD drives for backup.

ASUS NVIDIA GeForce RTX 3060 12GB. nVidia Studio driver version 560.81 - 3584xCUDA cores Direct X 12.1. Memory interface 192bit Memory bandwidth 360.05GB/s 12GB of dedicated GDDR6 video memory, shared system memory 16307MB PCi Express x8 Gen3. Two Samsung 27" LED SA350 monitors with 5000000:1 contrast ratios at 60Hz.

Running MMS 2024 Suite v 23.0.1.182 (UDP3) and VPX 14 - v20.0.3.180 (UDP3)

M Audio Axiom AIR Mini MIDI keyboard Ver 5.10.0.3507

VXP 14, MMS 2024 Suite, Vegas Studio 16, Vegas Pro 18, Cubase 4. CS6, NX Studio, Mixcraft 9 Recording Studio. Mixcraft Pro 10 Studio.

Audio System 5 x matched bi-wired 150 watt Tannoy Reveal speakers plus one Tannoy 15" 250 watt sub with 5.1 class A amplifier. Tuned to room with Tannoy audio application.

Ram Acoustic Studio speakers amplified by NAD amplifier.

Rogers LS7 speakers run from Cambridge Audio P50 amplifier

Schrodinger's Backup. "The condition of any backup is unknown until a restore is attempted."

johnebaker wrote on 3/3/2024, 5:42 AM

@Jamil-Taylor

Hi

. . . . The only way to determine if a particular process (yours being to AVI>DivX or mine, direct to HEVC) is "better" is to create a file of each using same bitrate (resulting in the same file size) and then subjectively comparing them for visual quality. . . .

I am in agreement with @AAProds.

I now have DivX installed.

Exporting as AVI then converting to HEVC using DivX and exporting direct from VPX with the appropriate bitrate settings to achieve the same bitrate and file size as the DivX conversion, is, IMHO, time-consuming for no gain.

In VPX I exported, to AVI file format, a short, high detail video clip, for conversion using DivX (default HEVC settings), and a direct export to HEVC setting the Ave and Max bitrates to achieve the same bitrate as the DivX conversion and got the following results:

  • DivX:- Ave bitrate: 4226 kb/s, file size: 82.6 MB
     
  • VPX :- Ave bitrate: 4365 kb/s, file size: 85.4 MB

    Settings used: Ave bitrate set to 4200, Max bitrate 5000

These are identical encoding formats, and as you can see, the differences are minimal.

. . . . At a set bitrate and over a set time, there can only be one file size, regardless of the program or codec . . . .

As you can see, the increase in bitrate vs file size are within ~1% of each other

Playing back both video clips on PC monitor and 52" TV show no difference in visual quality between the DivX conversion and the VPX direct export.

John EB

Last changed by johnebaker on 3/3/2024, 5:43 AM, changed a total of 1 times.

VPX 16, Movie Studio 2025, and earlier versions 2015 and 2016, Music Maker Premium 2024.

PC - running Windows 11 23H2 Professional on Intel i7-8700K 3.2 GHz, 16GB RAM, RTX 2060 6GB 192-bit GDDR6, 1 x 1Tb Sabrent NVME SSD (OS and programs), 2 x 4TB (Data) internal HDD + 1TB internal SSD (Work disc), + 6 ext backup HDDs.

Laptop - Lenovo Legion 5i Phantom - running Windows 11 23H2 on Intel Core i7-10750H, 16GB DDR4-SDRAM, 512GB SSD, 43.9 cm screen Full HD 1920 x 1080, Intel UHD 630 iGPU and NVIDIA GeForce RTX 2060 (6GB GDDR6)

Sony FDR-AX53e Video camera, DJI Osmo Action 3 and Sony HDR-AS30V Sports cams.