25.1 slower h.264 exports

Updating the status of this bug report.

I was able to go through my logs and find a project from PP25 that was still loaded on my computer. I then exported the same project again in PP25.1. The machine, operating system, location of media, location of export, all the same. No new hardware or software, only PP25.1 upgrade. The logs are posted below but the short answer is: When exported using PP 25 encoding time was 00:02:04 when expoted using PP25.1  the Encoding Time: 00:17:05 fiftenn minutes more. 

Adobe please help. Logs posted below

10/26/2024 01:38:41 PM : Queue Started

- Source File: C:\Users\1018ME~1\AppData\Local\Temp\24_10_20_Carley & Ray.prproj
- Output File: X:\Carly & Ray Teaser.mp4
- Preset Used:
- Video: Based on source, Hardware Encoding, Nvidia Codec
- Audio: AAC, 320 kbps, 48 kHz, Stereo
- Bitrate: CBR, Target 50.00 Mbps
- Encoding Time: 00:02:04
10/26/2024 01:41:29 PM : File Successfully Encoded

12/08/2024 12:44:43 PM : Queue Started

- Source File: C:\Users\1018ME~1\AppData\Local\Temp\24_10_20_Carley & Ray_1.prproj
- Output File: X:\Test Teaser.mp4
- Preset Used: 4k 50Mbit CBR
- Video: Based on source, Hardware Encoding, Nvidia Codec
- Audio: AAC, 320 kbps, 48 kHz, Stereo
- Bitrate: CBR, Target 50.00 Mbps
- Encoding Time: 00:17:05
12/08/2024 01:02:46 PM : File Successfully Encoded

Hi Mayjain,

I have another machine that is still running PP 24.6 so I will load the lastt coupe of projects up and try some export tests. As I stated to Neil. There were no cghanges to my system or to the media I am working with. One day running PP 25.0 everything exporting fast. Like I mentioned I do not have specific time pre 25.1 update because I did not have any problems but definately no lore then 5 minutes for a  2-3 minute final export. Timeline cosists of  Sony HEVC  H.265 footage exported to 50 Mbit 4K h.264 files. No heavy fx like noise redcuction or flicker free only a few warp stabilizer clips. Ran several exports this morning and they were all around 18 minutes for a 3:14 second timeline

I have another machine running 24.6 and I will do some tests.

Darrell

Hi Neil,

Thanks again for chiming in as always. I am still running windows 10. The problem for me just occurred from the 25 to 25.1 update with litterally no changes in anything.

Has there been a Windows update? It has been reported here that in the most recent one, on some PCs at least, the latest Win11 version actually turns off the iGPU under certain circumstances. Which definitely affects processing of long-GOP media.

And for that, the OP had to go into their BIOS settings and turn the iGPU back on, if I read correctly.

Would be interesting to hear a comparison of an earlier 25.x or the latest 24.x on your machine too.

That is Win11 24H2 ... and it's been raised with Microsoft also.

This thread has more information in later posts ...

https://community.adobe.com/t5/premiere-pro-discussions/premiere-pro-25-1-igpu-stopped-decoding-my-footage/m-p/15025456#M542422