1 'gst-openmax' is a GStreamer plug-in that allows communication with OpenMAX IL
4 OpenMAX IL is an industry standard that provides an abstraction layer for
5 computer graphics, video, and sound routines.
7 This project is a collaboration between Nokia, NXP, Collabora,
8 STMicroelectronics, Texas Instruments, and the open source community.
10 == What's the status? ==
12 Many component wrappers have been developed for different OpenMAX IL
15 === ti (OMAP-3430) ===
17 Hardware-accelerated through DSP.
19 * H.264 video encoder/decoder
20 * H.263 video encoder/decoder
21 * MPEG4 video encoder/decoder
30 * AAC audio encoder/decoder
31 * G.711 audio encoder/decoder
32 * G.719 audio encoder/decoder
33 * iLBC audio encoder/decoder
34 * AMR-NB audio encoder/decoder
35 * AMR-WB audio encoder/decoder
39 * MP3 audio decoder (libmad)
40 * Vorbis audio decoder
41 * MPEG4 video decoder (FFmpeg)
42 * H.263 video decoder (FFmpeg)
43 * Audio sink (ALSA... not maintained)
48 * OpenMAX IL facilities (tunneling, clock)
52 It depends on your platform, but if want to try on x86 you can use Bellagio's
57 So, first install Bellagio's omxil from http://omxil.sourceforge.net/, or
58 http://downloads.sourceforge.net/omxil/libomxil-bellagio-0.9.1.tar.gz. Version
63 ./configure --prefix="$HOME/omx"
67 Register the components:
69 $HOME/omx/bin/omxregister-bellagio -v
71 You'll get an output like this:
73 Scanning directory /home/felipec/omx/lib/bellagio/
75 Scanning openMAX libary /home/felipec/omx/lib/bellagio/libomxvorbis.so
76 Component OMX.st.audio_decoder.ogg.single registered
77 Specific role OMX.st.audio_decoder.ogg.single registered
79 1 OpenMAX IL ST static components with 1 roles succesfully scanned
82 * "OMX.st.audio_decoder.mp3.mad" for MP3 decoding
83 * "OMX.st.audio_decoder.ogg.single" for Vorbis decoding
84 * "OMX.st.video_decoder.mpeg4" for MPEG4 video decoding
88 In order to use gst-openmax on Texas Instruments' OMAP platform you first need
89 to apply the patches in 'patches/omap'.
93 ./autogen.sh --noconfigure
94 ./configure --prefix="$HOME/omx"
99 To actually use the plug-in:
101 export GST_PLUGIN_PATH=$HOME/omx/lib/gstreamer-0.10
102 export LD_LIBRARY_PATH=$HOME/omx/lib
104 You'll be able to play audio and video with MP3, Vorbis, MPEG4, H.264, or H.263
105 content using Bellagio's components.
107 For MP3 you'll also need the mp3parse element, otherwise you'll get:
109 GStreamer-CRITICAL **: gst_segment_clip: assertion `segment->format == format' failed
111 If you want to see what's happening:
113 export GST_DEBUG=omx:4
115 == How to contribute ==
117 Suscribe to the mailing list, or send a direct e-mail to gstreamer-openmax@lists.sourceforge.net.
118 * mailing list: https://lists.sourceforge.net/lists/listinfo/gstreamer-openmax
120 If you find any issues please fill a bug report:
121 * http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer&component=gst-openmax
125 * Merge tunneling branch
132 * OpenMAX's homepage: http://www.khronos.org/openmax/
133 * Bellagio's homepage: http://omxil.sourceforge.net/