Become a Site Supporter and Never see Ads again!

Author Topic: compressing video from original capture to 5-8gig MKV  (Read 1847 times)

0 Members and 1 Guest are viewing this topic.

Offline wordgroove

  • Trade Count: (7)
  • Taperssection Regular
  • **
  • Posts: 119
compressing video from original capture to 5-8gig MKV
« on: February 19, 2024, 08:02:50 PM »
anyone know software or method to compress recorded video stream captured...

i am using a mac and i can capture the video
but i can only compress in post in final cut to mp4

when i capture it ends up 70-90 gb
then i can compress post in final cut to mp4 down to 22 gb

i'd like to get it to 5-8gb for 3 hour video and keep the quality
in MKV format

thanks y'all Taz

Offline grawk

  • Trade Count: (6)
  • Taperssection Member
  • ***
  • Posts: 369
  • Gender: Male
Re: compressing video from original capture to 5-8gig MKV
« Reply #1 on: February 19, 2024, 08:21:36 PM »
try handbrake.fr
4015gs/4018vlgs/kk14->mma:a d-vice/sonosax minir82/sonosax sx-m2d2/nagra vi/lectrosonics spdr

Offline wordgroove

  • Trade Count: (7)
  • Taperssection Regular
  • **
  • Posts: 119
Re: compressing video from original capture to 5-8gig MKV
« Reply #2 on: February 19, 2024, 08:28:02 PM »
ok thxs

Offline if_then_else

  • Trade Count: (0)
  • Taperssection Member
  • ***
  • Posts: 432
Re: compressing video from original capture to 5-8gig MKV
« Reply #3 on: February 20, 2024, 12:19:09 AM »
Code: [Select]
ffmpeg -i input.mp4 -c:v libx265 -crf 21 -preset slow -an output.mkv
You can vary the value of the crf parameter. Smaller equals better quality (but bigger file size).
I've found values between 20 and 23 a good compromise in terms of quality / size ratio.

Offline wordgroove

  • Trade Count: (7)
  • Taperssection Regular
  • **
  • Posts: 119
Re: compressing video from original capture to 5-8gig MKV
« Reply #4 on: February 20, 2024, 12:41:34 AM »
Code: [Select]
ffmpeg -i input.mp4 -c:v libx265 -crf 21 -preset slow -an output.mkv
You can vary the value of the crf parameter. Smaller equals better quality (but bigger file size).
I've found values between 20 and 23 a good compromise in terms of quality / size ratio.

where exactly do i change the crf value in handbrake ?
thx u

Offline if_then_else

  • Trade Count: (0)
  • Taperssection Member
  • ***
  • Posts: 432
Re: compressing video from original capture to 5-8gig MKV
« Reply #5 on: February 20, 2024, 02:54:59 AM »
No, this is for ffmpeg, an open source command line tool to edit and convert audio and video files. It's used by many other tools (e.g. handbrake). If you're not allergic to the commandline / shell, I'd recommend to use it directly.

Offline RyanJ

  • Site Supporter
  • Trade Count: (5)
  • Taperssection Member
  • *
  • Posts: 598
  • Gender: Male
    • Nine Inch Nails Live Archive
Re: compressing video from original capture to 5-8gig MKV
« Reply #6 on: February 20, 2024, 09:09:18 AM »
This is what I use (preset wise) for the nin archive to help keep the best quality possible for video. But also have an agreeable filesize for distributing on the archive itself. Without reducing the quality. YMMV and you may not agree. But I talked with a few library A/V archivists and a friend who worked at Netflix on what would be an agreeable format.

I still keep the original videos.

*link removed*
« Last Edit: April 01, 2024, 08:42:47 AM by RyanJ »
http://www.ninlive.com]
http://www.ryanjonik.com
Mics: Schoeps MK4s, AT853 (4.7k mod)
Pre: Naiant IPA v1.0, Babynbox
Recorders: M10, A10, Zoom F8n, Marantz PMD-620 (Concert Mod), TCD-D8
Transfers: Everything you want

Offline jefflester

  • Trade Count: (2)
  • Taperssection All-Star
  • ****
  • Posts: 1589
  • Gender: Male
Re: compressing video from original capture to 5-8gig MKV
« Reply #7 on: February 20, 2024, 12:15:48 PM »
Code: [Select]
ffmpeg -i input.mp4 -c:v libx265 -crf 21 -preset slow -an output.mkv
You can vary the value of the crf parameter. Smaller equals better quality (but bigger file size).
I've found values between 20 and 23 a good compromise in terms of quality / size ratio.

where exactly do i change the crf value in handbrake ?
thx u
On the "Video" tab there is a slider for "Quality" that goes from 51 "Lower Quality" to 0 "Placebo Quality." I dunno if that is direct 1-1 of the ffmpeg "crf" value but I think it is. There is also an option for avg bitrate. That might work better for your application since you have a desired file size you can just select that based on the file length and desired final size. With the Quality slider you might have to adjust and redo several times to get the filesize/quality you want.
DPA4061 HEB -> R-09 / AT943 -> CA-UGLY -> R-09
AKG CK63 -> nBob actives -> Baby NBox -> R-09/DR2d
AKG CK63 -> AKG C460B -> Zoom F8/DR-680MKII
Line Audio CM4/Superlux S502/Samson C02/iSK Little Gem/Sennheiser E609/Shure SM57 -> Zoom F8/DR-680MKII (multitracked band recordings)

Offline wordgroove

  • Trade Count: (7)
  • Taperssection Regular
  • **
  • Posts: 119
Re: compressing video from original capture to 5-8gig MKV
« Reply #8 on: February 20, 2024, 09:26:15 PM »
thanks all for the input

i think handbrake is the tool i needed
i''m getting the results i desired

thanks alll

any more settiings tips in handbrake is welcomed

Offline guitard

  • Site Supporter
  • Trade Count: (8)
  • Needs to get out more...
  • *
  • Posts: 3730
Re: compressing video from original capture to 5-8gig MKV
« Reply #9 on: February 21, 2024, 05:50:43 PM »
Code: [Select]
ffmpeg -i input.mp4 -c:v libx265 -crf 21 -preset slow -an output.mkv
You can vary the value of the crf parameter. Smaller equals better quality (but bigger file size).
I've found values between 20 and 23 a good compromise in terms of quality / size ratio.

where exactly do i change the crf value in handbrake ?
thx u
On the "Video" tab there is a slider for "Quality" that goes from 51 "Lower Quality" to 0 "Placebo Quality." I dunno if that is direct 1-1 of the ffmpeg "crf" value but I think it is. There is also an option for avg bitrate. That might work better for your application since you have a desired file size you can just select that based on the file length and desired final size. With the Quality slider you might have to adjust and redo several times to get the filesize/quality you want.

While doing this, I would recommend first using a small file to do trial tests from which you can use the data (file sizes) from the results to judge a good "Quality #" to achieve a file that's of the highest quality while staying within your desired final file size range.  This is especially prudent if you don't have a computer with a fair bit of processing power.
Mics: Schoeps MK41s & MK41Vs >:D
Pre-amps: BabyNbox & Platinum Nbox
Deck: Sony A10

Video: Canon HF G70 (4K), Sony FDR AX100 (4K), Pany ZS100 (4K)
Photo: Canon EOS 7D w/ Canon EF 70-200mm f/2.8L is III USM

A/V software: Sony Vegas Pro 18 (build 527) 64 bit / DVD Architect Pro 6.0 (build 237)

Offline wordgroove

  • Trade Count: (7)
  • Taperssection Regular
  • **
  • Posts: 119
Re: compressing video from original capture to 5-8gig MKV
« Reply #10 on: February 21, 2024, 05:55:31 PM »
thxs!!!

 

RSS | Mobile
Page created in 0.078 seconds with 36 queries.
© 2002-2024 Taperssection.com
Powered by SMF