[FFmpeg-user] Crash on DAR/SAR source change while HW transcoding

Mitja Pirih mitja at alternet.si
Thu Jun 7 10:37:51 EEST 2018

On 06. 06. 2018 15:14, Carl Eugen Hoyos wrote:
> 2018-06-05 18:29 GMT+02:00, Mitja Pirih <mitja at alternet.si>:
>> On 05. 06. 2018 16:15, Carl Eugen Hoyos wrote:
>>> 2018-06-05 10:55 GMT+02:00, Mitja Pirih <mitja at alternet.si>:
>>>> I am transcoding a live channel from live source. Everything
>>>> works as expected until SAR/DAR changes then ffmpeg
>>>> crashes out.
>>> If you experience a crash with FFmpeg, please provide
>>> backtrace, disassembly and register dump.
>> Carl Eugene, sorry I should have expressed myself better.
>> ffmpeg stopped, there was no kernel crash.
> Thank you for the confirmation.
> It is possible that the hardware encoders (as opposed to
> FFmpeg's implementation) do not support aspect change.
> You could partly test by using only hardware decoding
> and software encoding and by using software decoding
> and hardware encoding.

You are probably right it is probably so.
As Dennis suggested I dropped HW decoding and use only software
decoding. For past 24 hours ffmpeg instance is still encoding (HW)
without drops.


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