Marth64 changed the topic of #ffmpeg to: Welcome to the FFmpeg USER support channel | Development channel: #ffmpeg-devel | Bug reports: https://ffmpeg.org/bugreports.html | Wiki: https://trac.ffmpeg.org/ | This channel is publically logged | FFmpeg 7.1 is released
<EmberCrest>
second line shows resumption of PowerShell, with an incomplete H.265 file as the result. Gonna go check Event Logs as was suggested earlier.
<EmberCrest>
ok found it. Looks like Traneptora's suggestion was right: "0xc0000005 is an access violation exception"
<EmberCrest>
Faulting application name: ffmpeg.exe, version: 0.0.0.0, time stamp: 0x66adfd12
<EmberCrest>
Faulting module name: ffmpeg.exe, version: 0.0.0.0, time stamp: 0x66adfd12
<EmberCrest>
Exception code: 0xc0000005
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<EmberCrest>
Traneptora: right on time! you were right, it's a segfault error. Took hours to reproduce but it finally failed with 0xc0000005 according to Event Viewer
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<EmberCrest>
my computer restarted last night, lost chat history. x265 encoder is having a 'segmentation fault' on some video files I have. Completely silent failure even when using `-v debug`
<EmberCrest>
I know it's a segfault thanks to someone here giving me the exception code for that failure and me finding it in the Event Log. Windows native build, 7.0.2
<galad>
do you have one of those self-imploding intel cpu?
<EmberCrest>
how dare you insult my CPU!
<galad>
either that or probably a x265 bug
<EmberCrest>
Got an Intel Xeon W-2133
<galad>
what version of x265 are you using?
<EmberCrest>
whatever came with ffmpeg 7.0.2-- teach me how to find right quick?
<galad>
it should be printed somewhere in the output, maybe
<EmberCrest>
ah got it, lemme run somethin
<EmberCrest>
x265 [info]: HEVC encoder version 3.6+36-2cdd69a6d
<EmberCrest>
x265 [info]: build info [Windows][GCC 14.1.0][64 bit] 8bit+10bit+12bit
<EmberCrest>
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
<EmberCrest>
a process that does work for me is down-coding these files using libx264 (crf 22), which always works, and *then* re-encoding using libx265.
<travisghansen>
anyone ever had success using pw-v4l2 to wrap ffmpeg to use pipewire for importing video through pipewire? or just generally is there any support to use pipewire for video input vs the v4l device directly? essentially I want to ensure I can have multiple processes be able to share a single webcam..
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<Neville>
My ffmpeg command generates an MP4 file with a 23.98 frame rate, even though I explicitly set both the input frame rate (-framerate 24000/1001) and output frame rate (-r 24000/1001) in the parameters.
<Neville>
The goal is for ffprobe to display the frame rate as 23.976 fps (avoiding the rounded value of 23.98 or 23.97). Could you suggest additional parameters or adjustments to the parameter order to achieve this?
<Neville>
Below is my ffmpeg command for reference: