【I need to add a custom option for transcoding frame rate】

[Kaouning 0]

My TV is quite old, but it can play 4K 30fps videos. My TV box (Google TV) supports up to 4K 60fps. When I play 4K 60fps videos, my TV experiences lagging visuals, but the audio runs smoothly. I have no choice but to transcode to a very low bitrate to watch them. In fact, a compromise could be made by choosing high quality and low frame rate to achieve the best experience. This should not be difficult to implement in transcoding, and I hope this feature can be added.

[visproduction 328]

Kao,

Another method, often used online, is to have an alternate, lower res copies, available to play for users who run into bandwidth or server/network traffic limits.  When lower res media are made in advance and saved to the same directory, they can show up as a selection drop down in the media page: 4K 60fps, 4K 30fps, 1080P,  720P...

[Luke 42185]

HI, yes I think some in-app control could help with this.

[Kaouning 0]

On 3/13/2026 at 11:27 PM, visproduction said:

Kao,

Another method, often used online, is to have an alternate, lower res copies, available to play for users who run into bandwidth or server/network traffic limits.  When lower res media are made in advance and saved to the same directory, they can show up as a selection drop down in the media page: 4K 60fps, 4K 30fps, 1080P,  720P...

Pre-rendering more versions in advance can solve playback issues, but it will cause my storage pool to accumulate a large amount of additional data (hard drive prices have increased too much now). This is an optimal solution for large-scale server usage, but it is not the best choice for personal media library enthusiasts. This is because our NAS devices are usually replaced relatively quickly, and the latest chips have strong decoding capabilities, making online decoding very smooth. Compared to expensive products like TVs, the cost of upgrading NAS chips is just a fraction of the price of a TV.

[Kaouning 0]

On 3/14/2026 at 12:49 AM, Luke said:

HI, yes I think some in-app control could help with this.

Currently, mainstream online resources are all in 4K at 60fps. For someone like me who doesn't plan to replace my TV at the moment, this feature is essential to achieve real-time transcoding to 4K at 30fps, rather than simply compressing the bitrate to 1080p at 60fps or lower.I believe that in the future, 8K streaming media will need this feature even more, so you might consider including it in your update plans in advance.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[visproduction 328]

Kao,

Good points.  4K 60 fps to 4K 30 fps conversion takes a fair amount of CPU or hardware encoder effort.  You would be staying to .mkv h.265 video codec plus whatever audio conversion might be needed.  Converting down to 1080P 30 fps would take less effort and then your setup could handle more transcoding requests.  Also, converting to .mp4 h.264 video is very likely for a lot of end users and it is a faster and easier transcoding, but h.264 is not a good choice to stay in 4K. Can you just record in 1080P and not bother having anything n 4K?  That would help with your hard drive and bandwidth issues.

Edited Sunday at 06:17 PM by visproduction

[Kaouning 0]

不，不，不——你不了解当前DIY爱好者的状况。至少在我这边，大家的NASCPU至少都用N100芯片。到明年，最低缴纳金额将是N150。而且在转码方面，只有一两台设备需要（家庭观看）。对我们来说，计算能力已经足够了。

真正的问题是硬盘太贵了。我们社区中的大多数NAS爱好者使用二手硬盘作为媒体库，价格约为市场的三分之一。硬盘价格涨得这么多，我们几乎不买新的硬盘了。但我们不想牺牲海报墙。所以实时转码性能其实并不是瓶颈——问题在于播放设备的帧率。

至于电视盒，我们用的是高性能的，比如Apple TV或Google TV。只是这些显示器本身比较老旧。在我们国家，大型家电的安装服务非常昂贵——大约300美元。因此，我们更倾向于自己升级小型电子设备以获得最佳体验，只有在大型电器故障或使用寿命终点时才更换。

Edited 1 hour ago by Kaouning

[Kaouning 0]

On 3/15/2026 at 11:35 PM, visproduction said:

Kao,

Good points.  4K 60 fps to 4K 30 fps conversion takes a fair amount of CPU or hardware encoder effort.  You would be staying to .mkv h.265 video codec plus whatever audio conversion might be needed.  Converting down to 1080P 30 fps would take less effort and then your setup could handle more transcoding requests.  Also, converting to .mp4 h.264 video is very likely for a lot of end users and it is a faster and easier transcoding, but h.264 is not a good choice to stay in 4K. Can you just record in 1080P and not bother having anything n 4K?  That would help with your hard drive and bandwidth issues.

No, no, no—you don't understand the current setup of DIY enthusiasts. At least in my circle, everyone is using at least an N100 chip as the CPU for their NAS. By next year, the minimum will be an N150. And when it comes to transcoding, it's only needed for one or two devices (for family viewing). For us, the computing power is more than enough.

The real issue is that hard drives are too expensive. Most NAS enthusiasts in our community use used hard drives for their media libraries—at about a third of the market price. With hard drive prices having risen so much, we're barely buying any new ones. But we don't want to sacrifice our poster walls. So real-time transcoding performance isn't really a bottleneck—the problem is the playback device's frame rate.

As for TV boxes, we're using high-performance ones like Apple TV or Google TV. It's just that the displays themselves are relatively old. In our country, installation services for large appliances are very expensive—around $300. So we prefer to upgrade small electronic devices ourselves to get the best experience, and only replace the large appliances when they break down or reach the end of their lifespan.