playbin2, gst_element_seek and http.

[Kyrylo V Polezhaiev]

Thanks, Luis.
> Why is the GstElement 'pipeline' passed to all functions, except for
> the seek that is 'bin'?
I use pipeline as the first argument instead of playbin2 now.
> May I ask why you are changing the state to paused and then setting it
> back again?
Okay, now I am removed this part. So now I have:

    gint64 position, length;
    GstFormat format = GST_FORMAT_TIME;
    gst_element_query_duration (pipeline, &format, &length);
    position = static_cast<gint64>(length * (percents * 0.01));
    if (!gst_element_seek(pipeline, 1.0, format, GST_SEEK_FLAG_FLUSH, GST_SEEK_TYPE_SET, position, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE))
    {
        MessageBoxA(0, "gst_element_seek failed", "Error", 0);
    }

Just before gst_element_seek I have following values:
    length   = 187623000000
    position = 73124858969
    percents = 38.974358
    format   = GST_FORMAT_TIME

But now video still begins from start instead of from 73124858969.



> On 19 May 2012 11:53, Luis de Bethencourt <luis at debethencourt.com> wrote:
> > On 19 May 2012 09:58, Kyrylo V Polezhaiev <polezhaiev at ukr.net> wrote:
> >> Hello, I am using the following code in my browser plugin to set position in video:
> >>
> >> void OVIMediaPlayer::set_position(float percents)
> >> {
> >>     gint64 position, length;
> >>     GstFormat format = GST_FORMAT_TIME;
> >>     gst_element_query_duration (pipeline, &format, &length);
> >>     position = static_cast<gint64>(length * (percents * 0.01));
> >>     GstState state;
> >>     gst_element_get_state(pipeline, &state, NULL, GST_CLOCK_TIME_NONE);
> >>     gst_element_set_state(pipeline, GST_STATE_PAUSED);
> >>     gst_element_seek(bin, 1.0, format, GST_SEEK_FLAG_FLUSH, GST_SEEK_TYPE_SET, position, GST_SEEK_TYPE_NONE, GST_CLOCK_TIME_NONE);
> >>     gst_element_set_state(pipeline, state);
> >>     return;
> >> }
> >>
> >> My pipeline contains playbin2 with directdraw video sink and plays video from http server. Server supports HTTP Range Headers. My function gets percents argument in range [0; 100] to set position of video. But after each call video begins from begging.
> >>
> >
> > May I ask why you are changing the state to paused and then setting it
> > back again?
> > The rest looks OK, so I'm puzzled by this.
> 
> Why is the GstElement 'pipeline' passed to all functions, except for
> the seek that is 'bin'?
> Can you check that you are really passing a [0-100] percent value?
> Considering you are passing
> that value as a float it might be [0-1] somewhere else.
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