Tagged with encoder - Personal View Talks

Shutter Encoder free professional converter design by video editors

paulpacifico — Sat, 12 Sep 2020 21:35:05 +0000

Hello everyone,

There is a while i didn't came here, and i always loved this place.

Long story short i made a free video converter based on FFmpeg which can converter to professional and standards codecs with hardware acceleration (Nvenc, QSV, AMF...)

Works on Windows, Mac and Linux.

I started this project in 2013 developing with video editor (that i am also) in broadcast companies.

Here is a link to the website & downloads : https://www.shutterencoder.com

Hope you will enjoy the software.

Happy encoding !

Paul.

NVidia hardware H.264 encoder

Vitaliy_Kiselev — Mon, 13 Aug 2012 09:06:20 +0000

As you may know, GTX 680 and GTX 670 cards are based on same chip (later has one block turned off).

And it has harware H.264 encoder. No, not CUDA based.

All Kepler GPUs also incorporate a new hardware-based H.264 video encoder, NVENC. Prior to the introduction of Kepler, video encoding on previous GeForce products was handled by encode software running on the GPU’s array of CUDA Cores. While the CUDA Cores were able to deliver tremendous performance speedups compared to CPU-based encoding, one downside of using these high-speed processor cores to process video encoding was increased power consumption. By using specialized circuitry for H.264 encoding, the NVENC hardware encoder in Kepler is almost four times faster than our previous CUDA-based encoder while consuming much less power.

It is important to note that an application can choose to encode using both NVENC hardware and NVIDIA’s legacy CUDA encoder in parallel, without negatively affecting each other. However, some video pre-processing algorithms may require CUDA, and this will result in reduced performance from the CUDA encoder since the available CUDA Cores will be shared by the encoder and pre-processor. NVENC provides the following:

Can encode full HD resolution (1080p) videos up to 8x faster than real-time. For example, in high performance mode, encoding of a 16 minute long 1080p, 30 fps video will take approximately 2 minutes.
Support for H.264 Base, Main, and High Profile Level 4.1 (same as Blu-ray standard)
Supports MVC (Multiview Video Coding) for stereoscopic video—an extension of H.264 which is used for Blu-ray 3D.
Up to 4096x4096 encode

Via: http://www.geforce.com/Active/en_US/en_US/pdf/GeForce-GTX-680-Whitepaper-FINAL.pdf

It could be very interesting to see native support in main NLE for this feature.

Some tests: http://www.guru3d.com/article/geforce-gtx-680-review/6

GH2 + Ninja

djhessler — Tue, 20 Sep 2011 14:53:17 +0000

First off I would like to thank Vitaliy for all your hard work on the HACK, hands down to you, but I wanted to share and have other users try this, I have been keeping an eye on improvements on the HDMI issue that we all have with the NINJA, I personally use FCS to edit, but I also have Premiere Pro CS5, and I notice that it handles the footage much better when it comes to interlaced and you wanna render to progressive, but today I tried to transcode in their encoder called Adobe Media Encoder CS5 and I got very surprised, but I'm not sure if I got it all wrong because it's just too easy. This is what I did: I recorder 24p on my GH2 connected to my Ninja, of course I get that crippled interlaced footage, then I decided to use Adobe Media Encoder CS5 to de-interlaced and see what would happen, and to my surprise, the footage looks amazingly good, but I want other to test and see if I may be wrong. Here is step by step what I did:

1. record in 24p in your gh2, connected to ninja recording
2. move your footage to your HD
3. open Adobe Media Encoder CS5 and drag a clip to it
4. VERY IMPORTANT... select clip in AMB cs5 and go to FILE, INTERPRET FOOTAGE,
5. select "Use Frame Rate from file 30.0000 (30p) Pixel Aspect stays the same
6. Field Order select "Conform to: Upper Field First" IMPORTANT
7. CLICK OK
8. now ur footage is interpreted as 30 interlaced, click on SETTINGS
9. AND render to preferred format to 23.98, I used Apple Pro Res HQ and my footage looks good.

can some of you confirm if this actually works? I know transcoding is an extra step, but doing it like this is pretty simple, specially if your on a mac like me and dont wanna go the PC route to transcode and fix the crippled HDMI footage.

Cant wait for you guys to try this out.

On a second note, I'm working on a cage specifically for the GH2, with lots of mounting options, good access to battery, hdmi, and audio input, I'll keep you guys posted as soon as I get it milled.

Hessler
www.beyondcinema.net