[gst-devel] How to set window height & width using Playbin

[Giles Atkinson]

Debojyoti,


> It plays the video, but there is one small problem, when each video starts, just playing the first frame it stretches out to take the size of whole embedded window. The reason may be that I am not passing the window height & width to the Playbin. Could you please tell me how to pass the window height & width to the pipeline?

This is the expected behaviour: playbin puts a rescaler into the video pipeline so that the output fills the window it is offered.  That usually works well, but if you want to always show the video at its native size, I think there are two options:

1) Let playbin create its own output window, which should be native size, then reparent it into your application.

2) Reach inside playbin to query the capabilities at the output of the video decoder and set the output window to that size.

Giles

From: debojyoti.pal at wipro.com [mailto:debojyoti.pal at wipro.com] 
Sent: 20 January 2010 14:52
To: gstreamer-devel at lists.sourceforge.net
Subject: [gst-devel] How to set window height & width using Playbin

Hi,
Here are the descriptions of two problem I am facing: 
Problem 1 - I am writing an application in which video played using Gstreamer will be rendered in a window embedded in another window. So I created an QT application and then created the embedded Window, created a Playbin pipeline, and pass the window handle using gst_x_overlay_set_xwindow_id() API. 
It plays the video, but there is one small problem, when each video starts, just playing the first frame it stretches out to take the size of whole embedded window. The reason may be that I am not passing the window height & width to the Playbin. Could you please tell me how to pass the window height & width to the pipeline?
Problem 2 - I am playing MP3 files using Playbin in my application, when I increase the volume of the audio using g_object_set(), I can hear some noise in the sound. Is there any particular decoder I need to install? I installed the following plugins:
.       gst-plugins-base-0.10.22-3.6
.       gst-plugins-good-0.10.14-2.4
.       gst-plugins-ugly-0.10.11
.       gstreamer-0.10.22-1.24
.       gst-plugins-bad-0.10.11
.       libmad-0.15.1b
Regards,
Deb