Does someone have a script that converts all videos files from 264 to 265 and changes the name?
Even an attempt at it would be appreciated
looks like I will not convert anything at all.
It is definitely not worth converting x264, even less x265, to av1, if you are the only consumer. Just think about it. To get any “significant” space gains, while keeping a close to original quality (you will inevitably lose some detail), you need to spend maybe at least 3-4x more time encoding than the actual total video length, probably more, maybe 5x. Taking an average of 3GB/hour, 2TB is about 650 hours. x5 that’s like 3250 hours. An 8 core ryzen will have like 150W total system load encoding av1. 3250h * 0.15 kWh =~ 500 kWh. 500 kWh * 0.15$/kWh (I took an optimistic electricity cost for these days, might be a lot more depending where you live) = $75 in electricity costs. Setting encodes, moving files around, will also take up some significant amount of time. You will gain maybe 1TB, if compressing audio to opus as well, less than that you will have significant video quality losses. 1TB of hdd space is worth $15 these days. And you don’t waste time/electricity+money/video quality.
So it’s only worth to get existing published encodes of the material you own, of if you are planning on publishing yourself. Or just for fun, if you want to experiment and encode one movie to see what’s the best you can get out of av1.
source: https://www.reddit.com/r/AV1/comments/ymrs5v/id_like_to_encode_my_entire_library_to_av1/
Just keep in mind you’re going to lose quality. Any time you compress something in a lossy format is going to get worse.
Another note, if you’re not worried about quality loss, you might look into AV1 over h265. Much better compression. Though, that might not work with your setup.
Thx for reminding me.
Is it ready for prime time already?
I would try making one video into the format you want and see if it plays where you want it.
Short answer yes. Much longer. More complex answer. Mostly. If you’re planning on your devices being able to support hardware decoding and large resolutions/ high frame rates. Sit-top boxes and appliances are not quite there right now. I believe the newer Chromecast HD absolutely supports av1. But most of the older Chromecast including Chromecast TV do not support it directly. So it will have to be re-encoded to be streamed.
That said, the codec itself is fantastic. As an example for animated content, especially. I have some super high quality rips of the old old cartoon from the '80s of the Ghostbusters franchise. We’re talking nearly a gigabyte encoded in h264 for a 22 minute episode. At SD resolution. Upscaling them to 720p and encoding them with av1. And a constant rate factor of about 40. They’ve been coming in between 80 and 200 MB in episode depending upon how much movement there is etc. The one thing with av1 is That as it degrades it sort of smooths everything which works out perfectly for animation most of the time. It can work for live action etc. As well. But you will encounter smoothing as detail is lost. But overall, it is much more preferable to the H style codex so far
What about
#!/bin/bash find . -type f -name '*.mp4' -exec sh -c 'ffmpeg -i "$0" -c:v libx265 "${0%.mp4}-conv.mp4""' {} \;Kind of. But this is encoded using CPU and will be time consuming. Search for FFMPEG GPU acceleration. The installation (building) will take some time but the time saved during mass conversion of videos will be worth it. I believe FFMPEG supports RCOM on Amd and Cuda on Nvidia . So any gpu should be fine.
I generally think that for storage/archiving you should use CPU encoding and only use GPU for things like transcoding where real-time results are crucial.
GPU encoding is a lot worse quality than CPU, and you can’t change the settings to what you want. Better to just accept the extra time requirement to get a better result.
GPU decoding is the way to go, it frees up the CPU to do the encoding so you’re still cutting down time without adding GPU weirdness to the output.
I agree with you. With GPU encoding the options to tweak are less and the quality drop is noticeable if the source ain’t that great. But if you try to encode a full movie on a weak CPU it’s going to take ages.
So, I should not look into enabling hardware acceleration?
I personally would not use it for anything that is being saved on your drive. Using cpu encoder is slower but I just let it run over night or whatever and it will be done later.
Save GPU encoding for when you need it smaller right now like when you are transcoding on the fly.
Thxn i’ll have another look into it!
Or use A FFMPEG script to sort all the x264 videos and keep it in a separate folder and use handbrake with GPU and mass convert all the videos in that particular folder. AV1 is also good but as some other user said, your hardware needs to support it.
I guess newer hardware is cheaper than drives
I use a handbrake container and a watch folder. Just move what you want converted to the watch folder and handbrake does the rest.
That’s more work at the first glance since it’s not just a couple of videos
That’s a great idea!! Thanks!
Maybe a script using ffmpeg can be made. For further time saving, do it using ffmpeg hardware acceleration using gpu.
Like this? https://lemmy.ml/comment/7587233
I can’t use hardware acceleration as I’ve got an nvidia card and I wasted already many hours on it. Buying another card and smashing the old one against the wall would be better
Why exactly can’t you use hardware acceleration with an nvidia card? We have Arch Linux with a Quadro P400 and using the nvidia driver Tdarr runs super smoothly. The way to get all your content in x265 is just by decoding and encoding, which Tdarr, Handbrake etc can do. But it’s one stream per nvenc/nvdec at a time so it takes time.
Thx, i’ll have another look into it! I just couldn’t make it work
You can use hardware acceleration with nvidia cards and ffmpeg with a 980 or better (YUV420), more info here
Thx, this whole thread tells me to have another look into it. It may have been just me or the wrong guides but I was desperatly searching for a way and couldn’t find one.
I use tdarr for my large scale conversions to AV1 but I use shutterencoder for everything else. It’s like handbrake but friendly for working in large batches and the UI is really nice https://www.shutterencoder.com/en/ It will add H265 to the end of the name too
Thx, I guess I move to av1 then since many recommend it and say it’s ready for prime time
If whatever you’re doing works with av1 then I’d say go for it. I do AV1 for Plex since all of my devices can hardware decode, however I keep my own videos at h264 software encoded (for smaller filesizes) since Synology photos doesn’t support AV1.
I’ve made several, what are your needs?
