I have used your file and get the same error message.

Here is the video: https://streamable.com/vkav1

In the console I also get the following error message:

int FFMPEG::open_encoder(const char*, const char*):
check_frame_rate failed /home/spc/cin-test/test.proxy2-mp4.m2ts
failed=1 canceled=0
int ProxyRender::create_needed_proxies(int):
Error making proxy.

Sam

I have added this information to the manual in the Proxy section for future reference.  BUT...

On 08.04.19 21:53, Igor BEGHETTO wrote:
> Hi Sam,
> usually I use this proxy settings (for  source at 1080p):
>     - Scale Factor: 1/4
>     - Use Scaler: unchecked
>     - File Format: FFMPEG - mpeg
>     - Video Preset:
>         - Compression: mpeg.mpeg
>         - Bitrate: 1800000
>         - Quality: -1
>         - Pixels: yuv420p
>
> For some videos, with strange variable bit rate, made with a
> smartphone I had problems, like you, with the settings above; then I
> changed it to MOV and it works fine :
>     - File Format: FFMPEG - mov
>     - Video Preset:
>         - Compression: mov.mov
>         - Bitrate: 1800000
>         - Quality: -1
>         - Pixels: yuv420p

------------------------------------- 

>> int ProxyRender::create_needed_proxies(int):
>> Error making proxy.
>>
>>  Does anyone have a hint for me to also handle video files with 120
>> FPS and higher.

We can not reproduce the above error on a sample 120fps mp4 file when using m2ts, but would like to see if it can be fixed.  The sample we used is at:

    https://streamable.com/ot7nz

Does this sample fail for anyone else? Or is there a small sample that fails for sure?  Perhaps other settings have been changed that create the error? and I could try those?  gg/phyllis