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Old 14th March 2022, 11:28   #1  |  Link
levsch
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mgns Video Transcoder

Hello.

I'm a developer of mgnsVideoTranscoder tool.
The tool has been published today.
It can be downloaded from sourceforge

The tool is created for encoding by AOM-AV1 (or x264) codec to target size with constant quality.

The tool also can do semi-automatic resolution selection.

I'm glad if it will be useful for you.

Last edited by levsch; 24th March 2022 at 06:48.
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Old 14th March 2022, 14:20   #2  |  Link
StainlessS
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Seems a bit top heavy @ 775MB.
Why so big ?
Also, will x265 become supported ?
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Old 14th March 2022, 14:40   #3  |  Link
levsch
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Quote:
Originally Posted by StainlessS View Post
Seems a bit top heavy @ 775MB.
Why so big ?
It contains bbb_sunflower_2160p_30fps_normal.mp4 (603 MiB) as input example.
mgnsVideoTranscoder pure code is 1,25 MiB

Quote:
Originally Posted by StainlessS View Post
Also, will x265 become supported ?
x265, support will be supported later if community will big enough. Currently I'm recommend use aom av1 instead.

x265,rav1e,SVTAV1,Xvid support have partial implementation and are disabled.

rav1e, SVTAV1 produce broken picture at some specific scenario and development was stopped until rav1e, SVTAV1 become mature.

Xvid is not supported because of good command-line encoder is absent.
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Old 14th March 2022, 19:59   #4  |  Link
StainlessS
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Thanks for your answers.
Maybe could provide the example clip as external optional rather than compulsary inclusion.
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Old 17th March 2022, 17:55   #5  |  Link
levsch
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v1.1.0 is released.

changelog:

Quote:
fixed: deadlock
fixed: avc concatenation
speed up: encode restarting time was decreased after unexpected stop
speed up: avc encoding speed is improved by descreasing crf level step (current crf level steps: 0.1 for x264 and 1 for av1).
speed up: segmented encode: true middle+uniform encode order is used now.
new: showVersion.cmd fast util was added
changed: install documentation
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Old 17th March 2022, 18:57   #6  |  Link
videoh
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Quote:
Originally Posted by StainlessS View Post
Maybe could provide the example clip as external optional rather than compulsary inclusion.
Right on, because after we have downloaded it once, we don't need to donwload it again for subsequent releases. Have some respect for your potential users.
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Old 17th March 2022, 21:18   #7  |  Link
levsch
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Quote:
Originally Posted by videoh View Post
(...)Have some respect for your potential users.
I was thinking that you are working with video files that are large usually.
Therefore I made conclusion that big download size is very little inconvenience.

Thanks for feedback. I'll try to decrease that file size to 50 MiB.
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Old 17th March 2022, 23:20   #8  |  Link
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That's great, thank you levsch.
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Old 18th March 2022, 18:28   #9  |  Link
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mgnsVideoTranscoder v1.2.0 is released.

changelog:
Quote:
* Error description on process creation failure is improved.
* AOM AV1 respects --lag-in-frames parameter for memory consumption detection.
* AOM AV1 encoder params are added: --lag-in-frames --enable-qm --enable-fwd-kf
* user friendly printing of display aspect ratio for media info getting.
* big example was changed by a small example (mgnsVideoTranscoder package size now is 128 MiB)
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Old 30th March 2022, 15:25   #10  |  Link
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New version is released 2022-03-30 v1.3.0.

Changelog:
  • documents are generated as html in "docs" folder
  • mkvtoolnix was updated to 66.0.0
  • aomenc: crash workaround at low --cq-level
  • aomenc: "--enable-keyframe-filtering=2" support.
  • presentation timestamps getting speed is improved for matroska file
  • aomenc params are added: --aq-mode, --kf-max-dist, --kf-min-dist, --sb-size, --enable-keyframe-filtering, --arnr-strength, --arnr-maxframes, --enable-restoration, --deltaq-mode, --sharpness, --enable-dnl-denoising, --denoise-noise-level
  • was updated to ffmpeg-5.0
  • no more need to rename setLocalPaths.template.cmd
  • isVideosEqual feature is uncovered
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Old 6th April 2022, 13:19   #11  |  Link
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New version is released 2022-04-06 v1.4.0.

Changelog:
  • aomenc: most of raw params are added.
  • download mirrors were added.
  • automatic keyframe interval is added (max 300 frames, or 10 seconds)
  • encode chunk size is increased. minimum size is keyframe interval.
  • hdr support: MasteringDisplayInfo and ContentLightLevelInfo were added
  • fixed: 8K resolution unwanted disk IO was removed during encoder memory detection.
  • fixed: pipes IO
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Old 8th April 2022, 08:23   #12  |  Link
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New version is released 2022-04-08 v1.4.1.

Changelog:
  • ffmpeg was updated to ffmpeg-5.0.1
  • broken download links were fixed
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Old 24th September 2022, 15:44   #13  |  Link
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New version is released
(2022-09-24) [v1.5.0]

* aomenc was updated to v3.4.0
* vmaf was updated to 2.3.1
* ffmpeg was updated to 5.1.1
* x264 was updated to r3098
* documentation minor fixes
* error handling is improved
* codec name AOM_AV1 was changed to aom_Av1
* codec name AVCEncoder was changed to avc_x264
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