gstreamer plugins

Ubuntu14.04 install GStreamer to test UVC H264 CameraRecently debugging UVC H264 Camera, need to test the camera in Ubuntu, so with the help of GStreamer to achieve.Gtreamer is a programming framework based on the glib library (the latest version needs glib2.0) to build streaming media applications, the goal of which is to simplify the development of audio/video applications that can now be used to deal wit

/gstreamer/0.10, then here the mygst shocould be/home/super/gstreamer.5. Enter directory contains the folder you created, e. g:/home/super/gstreamer, run gst-0.106. the script will help you to export lots of environment variables, including path, LD_LIBRARY_PATH, pkg_config_path... to make sure all the gstreamer relate

In the previous section, we briefly introduced gstelementfactory can be used to create an instance of element, but gstelementfactory not only do it, gstelementfactory as a GStreamer A basic type in the registration system that describes all the plug-ins (plugins) and the element created by GStreamer. This means that gstelementfactory can be applied to some automa

run until someone calls G_main_loop_quit ()*/loop = G_main_loop_new (NULL, FALSE);G_main_loop_run (loop); /* Clean up */Gst_element_set_state (pipeline, Gst_state_null);Gst_object_unref (pipeline);G_main_loop_unref (loop); return 0;} 3) Message type (msg types) GStreamer has several predefined message types that are passed by the bus, and these messages are extensible. Plugins can define additional messag

Compile an Mp3 player based on GStreamer and an mp3 player based on gstreamer I. Introduction The author's system is CentOS6. Based on this, this article develops Mp3 players and uses the mp3 decoding library libmad and gstreamer0.10-plugins-uugly. The detailed steps are as follows. Ii. Procedure 1) download wget ftp://ftp.pbone.net/mirror/atrpms.net/el5-x8

); Gst_bin_add (Gst_bin (pipeline), bin); Gst_element_link (source, sink); [..] } 3) Define Bins Programmers can customize the bins to perform specific tasks. For example, you can refer to the following code to write a Ogg/vorbis decoder. int main (int argc, char *argv[]) { Gstelement *player; /* init */ Gst_init (ARGC, ARGV); /* Create player */ Player = Gst_element_factory_make ("Oggvorbisplayer", "player"); /* Set the source audio file */ G_object_set (player, "location", "Helloworld.ogg", N

One: Overview As we saw in the elements chapter, pads is an element external interface. The data stream from one element of the source pad to another element of the sink pad. The pads function (capabilities) determines the type of media that an element can handle. The type of a pad is determined by 2 characteristics: its data-oriented (direction) and its timeliness (availability). As we mentioned earlier, GStreamer defines 2 kinds of pads data-oriente

This tutorial introduces a new way to create pipeline-created in the run, rather than at the end of a one-time creation before running. Introduced The pipeline in this tutorial are not all created before the run is complete. Relax, there's no problem with this. If we do not do more in-depth processing, then the data will be dropped at the end of the pipeline, of course, we will certainly do in-depth processing ... In this example, we will open a file that already contains the audio and video (Co

For programmers, one of the most important concepts in GStreamer is the Gstelement object. This object is the base block for building a media pipeline. All upper layer (high-level) parts originate from the Gstelement object. Any decoder encoder, splitter, video/audio output part is actually a Gstelement object.For programmers, element is like a black box. You enter data at one end of the element, element processes the data, and the data is output from

APIs, simplifying integration and reuse. 2.1.3. No unified plug-in management mechanism A typical player for different media types will have different plug-ins, two media players will implement their own different plug-in mechanism, so the codec is not easy to exchange. Each typical media player's plug-in management system is a requirement for its specific application. The lack of a unified plug-in mechanism has severely hampered the development of binary codecs because no company wants to port

Goal The pad's capabilities is the basis of a GSTREAMER element because the framework is automatically processed most of the time, so we almost don't feel it exists. This tutorial compares the principle of bias, introduces: What is pad capabilities How to get this thing When should I get this thing? Why do you need to know them? Introduced Pads Pads allows information to enter or leave a element--as if it had been shown. This capabilities (or simply

libststffmpeg. DLL to the C:/window/system32 (that is, the system directory % system32 % ). If I don't do this for a day, the test application I wrote will always report "cann' t create player. The following error is reported when you use the gst-launch.exe command: Setting pipeline to paused... Pipeline is prerolling... Error: From element/gstpipeline: pipeline0/gstdecodebin: decodebin0/gstqueue: queu E1: Internal data flow error. Additional debug info: .../Source/

First, jQuery use plug-inPlug-in lookup and help-Plug-in library for the official JQuery website (http://plugins.jquery.com)A large number of plugins are available. and give out the user rating, version and bug of each plugin.-The library lists zip file downloads, demos, sample code and tutorials for each plugin650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/7E/76/wKiom1cAyTnSndGiAADBKW6jZSY282.png "title=" Web.png "alt=" Wkiom1caytnsndgiaa

instructions for automatically creating a pipeline are as follows: GST-launch playbin uri = file: // path/to/filepath The manual creation can be as simple as this: GST-launch filesrc location =/path/to/filepath! Mad! Alsasink Specifically, mad is the main topic in which gstreamer will run the runtime to load the element, that is, the next issue that will go deep into loading. If your system lacks the MP3 plug-in that you need to understand the

use Gst_plugin_path to refer to our own developed plug-ins. In practice, however, there is no need to strictly define the nature of the plug-in path to which these variables are directed. I often add the system plug-in path to the path system variable. GStreamer can also find system plug-ins. It is also necessary to note that the When both gst_plugin_system_path_1_0 and Gst_plugin_system_path are not defined, GS