querying playbin2 queue2 buffer stats

[chaitanya v l]

Hi Dave,

On Mon, Sep 30, 2013 at 12:50 AM, Dave Milici <davemilici at sbcglobal.net> wrote:
> Hi--
>
> We have a media player using gstreamer's playbin2 pipeline for playing
> videos from YouTube sites and it's not immediately obvious how to query the
> queue2 object's current buffering stats.
>
> Adding a playbin2 callback for deep-notify changes on
> 'current-level-buffers' or 'current-level-bytes' does not get called. Since
> the media player is using playbin2's download option, adding the callback
> for 'temp-location' actually gets called for querying the download temp file
> path, but querying the buffer properties on the same callback object returns
> 0.
>
> If we enable GST_DEBUG=queue2:4 for console output, we can see current
> buffering stats with bytes changing up and down frequently throughout the
> playback session. We'd like to be able to tap that same info
> programatically, but the above attempts suggest we're not looking at the
> right playbin2 object.
>
> Is there code snippet which shows how to enumerate all the queue objects
> constructed in a playbin2 pipeline and query their buffer stats?
>
> --Dave Milici
>

Have you tried iterating through the elements in the bin using
gst_bin_iterate_* functions?
Have you tried registering for message::buffering +
gst_message_parse_buffering to get buffering statistics of your
pipeline ?


regards,
Chaitanya