[FFmpeg-user] A query on ffmpeg's DASH muxer and setting timeShiftBufferDepth values in MPEG-DASH Media Presentation Description (MPD) files.

[Dennis Mungai]

On Sat, 16 Feb 2019 at 05:29, Dennis Mungai <dmngaie at gmail.com> wrote:

> Hello there,
>
> The documentation for the webm_dash_manifest muxer mentions the
> time_shift_buffer_depth option, defined as "Smallest time (in seconds)
> shifting buffer for which any Representation is guaranteed to be available.
> "
>
> What's the equivalent option/setting for the same in the dash muxer (,if
> implemented) ?
>
> Warm regards,
> -Dennis.
>

Hello there,

The answer to the question above, as provided on Stackoverflow:

-window_size <num_segments> multiplied by the last segment duration appears
to set timeShiftBufferDepth, when a SegmentTemplate is in use.
Source:
https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/dashenc.c#L922

Link:
https://stackoverflow.com/questions/54729671/a-query-on-ffmpegs-dash-muxer-and-setting-timeshiftbufferdepth-values-in-mpeg-d/54754799#54754799

Leaving this here in case someone else runs into the same issue.