[Live-devel] RTSP Streaming to mp4 file, first frames of each corrupted

[Benjamin Lowe]

I see thank you for this clear explanation. Are you aware of any methods
out there for recording an RTSP stream reliably to file without losing
partial frames?

When FFMPEG is used to capture the frames directly, it seems to not have
this issue, so I presume they have some logic for extending the clip to end
of each keyframe, but it seems FFMPEG just freezes with no error after some
amount of time; I saw in OpenRTSP API docs it mentions about a OPTIONS ping
to buggy RTSP servers can be used to keep them alive; maybe I should try
that.

Kind Regards,



On Fri, 8 Jan 2021 at 12:32, Ross Finlayson <finlayson at live555.com> wrote:

> By the way, I discovered that if you use “ffmpeg” to process your output
> files (without decoding/reencoding the video) - e.g.
>         ffmpeg -i cam_eight-00120-00150.mp4 -c copy
> cam_eight-00120-00150-processed.mp4
> you’ll end up with a MP4 file (in this example, named
> "cam_eight-00120-00150-processed.mp4”) that begins with a key frame.  I.e.,
> it omits the first <1 second of partial frames.  You may find this to be an
> acceptable solution - if you don’t mind missing <1 second of video between
> each clip.
>
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
>
>
> _______________________________________________
> live-devel mailing list
> live-devel at lists.live555.com
> http://lists.live555.com/mailman/listinfo/live-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.live555.com/pipermail/live-devel/attachments/20210108/95868a43/attachment.htm>