[BUG] \temp_mux.mkv' could not be opened for reading: open file error.

[shenef]

Describe the bug Trying to encode with the QSV AV1 any encoder on an Arc A770 16GB i get: Error: No Output detected - some number that varies with the file Error(s) detected. Please check log file! [...]

chunks.txt, splitted.log and exit.log are empty and executing NEAV1 as admin still results in the problem Checking the temp folder, there is no temp_mux.mkv file.

2022-11-09 20-06-17.mkv.log

Edit: problem not limited to QSV AV1

[Alkl58]

Could you try manually executing the command: ffmpeg.exe -y -i "C:\Users\shen\AppData\Local\Temp\NEAV1E\aJMJhsZFYdBRyDd\Chunks\split000000.mkv" -an -sn -map_metadata -1 -pix_fmt yuv420p -f yuv4mpegpipe - | "C:\Users\shen\AppData\Roaming\NotEnoughAV1Encodes\Apps\qsvenc\QSVEncC64.exe" --y4m -i - --codec av1 --cqp 50 --quality best --output-depth 8 --output-csp i420 -o "C:\Users\shen\AppData\Local\Temp\NEAV1E\aJMJhsZFYdBRyDd\Video\000000.webm" ?

If the folder / files don't exist anymore, you can replace it with a different file / destination.

The only thing which comes to my mind that maybe some Visual C++ Redistributable is missing - does using the integrated encoders in FFmpeg work? (When choosing either aom (AV1 FFmpeg), rav1e (AV1 FFmpeg) ...)

[Alkl58]

No response in 3 months, closing issue.

[gabrielrdrguez]

@Alkl58 I got the same error today. How can I help you debug it?