[FFmpeg-user] Drop frames during framemd5 calculation of DPX files

[Gyan Doshi]

On 26-03-2020 02:17 pm, Matthew Yang wrote:
> Hello there
>
> I have been experiencing drop frames during calculation of framemd5
> checksums for a bunch of DPX files.
>
> The command:
>
> *ffmpeg -start_number 86400 -i finalDPX_forDCP\Respire%08d.dpx -f framemd5
> original_md5_2.txt*
>
> The result:
>
> frame=20837 fps=5.2 q=-0.0 Lsize=    1628kB time=00:14:28.20 bitrate=
>   15.4kbits/s dup=0 *drop=867* speed=0.216x
> video:1107194832kB audio:0kB subtitle:0kB other streams:0kB global
> headers:0kB muxing overhead: unknown
>
> I ran the checksum calculation twice and it has the same exact number of
> drop frames.
>
> The full results can be seen in the txt file attached.
>
> Please kindly advise on how I can solve this problem as I am unable to
> resolve it on my own.

Some snafu with detected fps.

Use

     ffmpeg -start_number 86400 -i finalDPX_forDCP\Respire%08d.dpx -vsync 0 -f framemd5
allframes_md5.txt


Gyan