[FFmpeg-user] Problem with astats and adrawgraph

[Michael Koch]

Am 26.11.2019 um 09:55 schrieb Carl Eugen Hoyos:
>
>> Am 26.11.2019 um 09:40 schrieb Michael Koch <astroelectronic at t-online.de>:
>>
>>> Am 26.11.2019 um 07:11 schrieb Carl Eugen Hoyos:
>>>
>>>> Am 25.11.2019 um 23:36 schrieb Michael Koch <astroelectronic at t-online.de>:
>>>>
>>>> [mp4 @ 00000000006288c0] Frame rate very high for a muxer not efficiently supporting it.
>>>> Please consider specifying a lower framerate, a different muxer
>>> Did you see this?
>>> I did not read the whole thread but if your issue is a broken output file this is the explanation.
>>> Test with mkv or -r 25.
>> The problem does only appear when I use two of the [astats,adrawgraph] filter chains and combine the outputs with vstack (or hstack or overlay, it's always the same problem).
>> If I use only one [astats,adrawgraph] chain, then it works without any problems with the same input file.
> How is this related to my suggestions?

Thanks for your suggestion. Adding -r 25 does indeed solve the problem. 
Although I don't understand why it is required. The input framerate is 
25 and it's detected correctly when I use the simpler filter chain.

Michael