[FFmpeg-user] Terminate on no frames/input buffer overflow

[Arif Driessen]

Hi Adam,

Have you tried running ffplay with `-loglevel debug` to gleam any more
information?

Regards,
Arif

On Fri, Oct 1, 2021 at 7:08 PM Adam Nielsen via ffmpeg-user <
ffmpeg-user at ffmpeg.org> wrote:

> Hi all,
>
> I'm streaming a video with ffplay on a Raspberry Pi using the hardware
> decoder (v4l2_m2m) and the video stream keeps randomly freezing, I am
> guessing due to a bug in the hardware decoder implementation.
>
> When this happens, I must run "killall ffplay".  I have configured
> systemd to restart ffplay automatically so the streams resume a few
> seconds later, until they freeze again anywhere from a few minutes to a
> few hours later.
>
> Rather than having to manually SSH in and terminate ffplay, I am
> wondering whether there is a way that ffplay can be told to exit when
> the decoder freezes, so that I might have a chance of recovering from
> this situation automatically?
>
> It looks like when the freeze happens, ffplay's memory usage increases
> as if it's buffering the incoming stream, so perhaps being able to get
> ffplay to quit in this situation might work.
>
> I have tried to use systemd's configuration to limit ffplay's memory
> usage, however it doesn't seem to terminate ffplay when this situation
> arises so I am not entirely sure what's going on.
>
> As a side note, the reason I am assuming this is a hardware bug is
> because I am streaming two videos, and when one freezes, so does the
> other one.  Occasionally I also get corrupted bits of one stream
> appearing in the other ffplay window as well, and dmesg reports errors
> about the graphics decoder timing out.  If I only restart one video
> stream I just get the old frozen frame showing up again.  I have to
> restart both ffplay instances before playback returns to normal.
>
> Any ideas how to tell ffplay to exit when it no longer receives frames
> from the streaming source?
>
> Many thanks,
> Adam.
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