[gst-devel] [gst-embedded] can playbin handle the sinkwithdecoding functions?

[Zhao Liang-E3423C]

GST_TYPE_ELEMENT， that means the "video-sink" is a GstElement,  actually it should be a GstElement pointer and the default value is NULL.

You need to create the videosink element externally, and set the pointer to this property. You can refer totem sourcecode.

Zhao Liang

-----Original Message-----
From: Zhao, Halley [mailto:halley.zhao at intel.com] 
Sent: Thursday, February 26, 2009 11:08 AM
To: Zhao Liang-E3423C; Discussion of the development of GStreamer; Michael Smith
Cc: gstreamer-embedded at lists.sourceforge.net
Subject: RE: [gst-embedded] [gst-devel] can playbin handle the sinkwithdecoding functions?

　　video-sink is GstElement? But I saw the following codes:
　　
　　gst_play_bin_class_init (GstPlayBinClass * klass)
　　{
　　...
　　  g_object_class_install_property (gobject_klass, ARG_VIDEO_SINK,
　　      g_param_spec_object ("video-sink", "Video Sink",
　　          "the video output element to use (NULL = default sink)",
　　          GST_TYPE_ELEMENT, G_PARAM_READWRITE));
　　...
　　}
　　
　　>-----Original Message-----
　　>From: Zhao Liang-E3423C [mailto:E3423C at motorola.com]
　　>Sent: 2009年2月24日 10:56
　　>To: Discussion of the development of GStreamer; Michael Smith
　　>Cc: gstreamer-embedded at lists.sourceforge.net
　　>Subject: Re: [gst-embedded] [gst-devel] can playbin handle the sinkwith
　　>decoding functions?
　　>
　　>The type of Video-sink is GstElement, not string.
　　>
　　>-----Original Message-----
　　>From: Zhao, Halley [mailto:halley.zhao at intel.com]
　　>Sent: Tuesday, February 24, 2009 10:46 AM
　　>To: Discussion of the development of GStreamer; Michael Smith
　　>Cc: gstreamer-embedded at lists.sourceforge.net
　　>Subject: Re: [gst-devel] [gst-embedded] can playbin handle the sinkwith
　　>decoding functions?
　　>
　　>　　My gst version is 0.10.18 (Ubuntu hardy).
　　>　　I saw that playbin has the property of "video-sink", but my try fails:
　　>　　gst-launch playbin -v -v uri=file:///home/halley/media/video/test.avi
　　>video-sink=xvimagesink
　　>　　The error message is:
　　>　　WARNING: erroneous pipeline: could not set property "video-sink" in
　　>element "playbin10" to "xvimagesink"
　　>
　　>　　Even when I try to use playbin2 and fakesink, it always give the same
　　>error.
　　>
　　>　　Where is my problem, thanks.
　　>
　　>　　>-----Original Message-----
　　>　　>From: Michael Smith [mailto:msmith at xiph.org]
　　>　　>Sent: 2009年2月21日 12:31
　　>　　>To: Liang Zhao
　　>　　>Cc: gstreamer-embedded at lists.sourceforge.net;
　　>　　>gstreamer-devel at lists.sourceforge.net
　　>　　>Subject: Re: [gst-devel] [gst-embedded] can playbin handle the sink
　　>with
　　>　　>decoding functions?
　　>　　>
　　>　　>On Fri, Feb 20, 2009 at 6:03 PM, Liang Zhao <liangzhao.bit at gmail.com>
　　>wrote:
　　>　　>> Hi Mke,
　　>　　>>
　　>　　>> Thank you.
　　>　　>>
　　>　　>> So the only way is to use playbin2?  what is the difference on
　　>intefaces,
　　>　　>> properties and signals between playbin2 and playbin?
　　>　　>> I find most of them are same.
　　>　　>
　　>　　>The only sensible approach (assuming you want to reuse existing code,
　　>　　>rather than writing something from scratch yourself) is to switch to
　　>　　>playbin2.
　　>　　>
　　>　　>The documentation can help you with the differences - you're right,
　　>　　>most things are similar.
　　>　　>
　　>　　>Mike
　　>　　>
　　>
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