https://becomwiki.live.md-websolutions.com/index.php?action=history&feed=atom&title=Multimedia_codecs_%28SBC-i.MX51%29Multimedia codecs (SBC-i.MX51) - Versionsgeschichte2026-05-13T15:00:36ZVersionsgeschichte dieser Seite in BECOM Systems SupportMediaWiki 1.43.5https://becomwiki.live.md-websolutions.com/index.php?title=Multimedia_codecs_(SBC-i.MX51)&diff=510&oldid=prevPeter: 1 Version importiert2023-10-31T08:03:11Z<p>1 Version importiert</p>
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<p><b>Neue Seite</b></p><div>= Basic libraries =<br />
<br />
;imx-lib<br />
:openembedded/recipes/imx-lib/imx-lib_10.07.11.bb<br />
:i.MX specific libraries for VPU, IPU, etc.<br />
;firmware-imx<br />
:openembedded/recipes/firmwares/firmware-imx_10.07.11.bb<br />
:Firmware for the VPU<br />
<br />
= Codec libraries =<br />
<br />
;fsl-mm-codeclib<br />
:openembedded/recipes/fsl-mm-codeclib/fsl-mm-codeclib_1.9.0.bb<br />
:Libraries for all hardware de-/encoders<br />
<br />
= GStreamer support =<br />
<br />
A plug-in for the GStreamer framework (see [https://en.wikipedia.org/wiki/Gstreamer here] for the Wikipedia overview) allows for playing multimedia files using the i.MX hardware codecs.<br />
<br />
;gst-fsl-plugin<br />
:openembedded/recipes/gstreamer/gst-fsl-plugin_1.9.0.bb<br />
:Freescale GStreamer plug-in<br />
<br />
In addition to the GStreamer plug-in, there are also patches applied to the GStreamer core.<br />
<br />
== Command-line usage ==<br />
<br />
The gst-fsl-plugin comes with a command-line player that is called ''gplay''. Simply supply the multimedia file as an argument to gplay. For more information, please have a look at the "Application Specification for gplay" document provided by Freescale at [https://www.freescale.com].<br />
<br />
There's even a more low-level interface that can be used: ''gst-launch''. Here is an example:<br />
gst-launch filesrc location=avatar.mov ! qtdemux ! queue max-size-time=0 ! mfw_vpudecoder ! mfw_v4lsink disp-width=1024 disp-height=768<br />
For more information, please refer to the "i.MX Linux Multimedia Framework User's Guide" available from Freescale at [https://www.freescale.com].<br />
<br />
== Media player ==<br />
<br />
The SBC Gnome demo image comes with the ''Totem'' media player. Totem exclusively uses GStreamer to play multimedia files (audio and video).<br />
<br />
To start Totem, navigate to {{mp|Applications-->Sound & Video-->Movie Player}} in the Gnome menu.<br />
<br />
If you are interested in which codecs are used in the background, start Totem from a Gnome terminal. Start playing any file and you can view a similar output in the terminal (look for the colored lines):<br />
<br />
root@sbc-imx51:~# totem<br />
<b><span style="color:#00ff00">MFW_GST_V4LSINK_PLUGIN 1.9.0 build on Oct 7 2010 23:14:53.</span></b><br />
[INFO] Product Info: i.MX51<br />
<b><span style="color:#ffff00">VPU Version: firmware 13.4.0; libvpu: 5.1.0 </span></b><br />
<b><span style="color:#00ff00">MFW_GST_VPU_DECODER_PLUGIN 1.9.0 build on Oct 7 2010 23:14:32.</span></b><br />
<b><span style="color:#ffff00">BLN_MAD-MMCODECS_AACD_ARM_03.05.00 build on Nov 25 2009 15:02:24.</span></b><br />
<b><span style="color:#00ff00">MFW_GST_AAC_PLUGIN 1.9.0 build on Oct 7 2010 23:14:15.</span></b><br />
>>V4L_SINK: Actually buffer status:<br />
hardware buffer : 14<br />
software buffer : 0<br />
<b><span style="color:#ff0000">[V4L Update Display]: left=5, top=202, width=440, height=184</span></b><br />
Total rendered:3192<br />
<br />
>>VPU_DEC: State: Ready to Null<br />
>>V4L_SINK: All buffer freed, close device.<br />
root@sbc-imx51:~# <br />
<br />
<br />
[[Category:SBC-i.MX51]]<br />
[[Category:i.MX]]</div>en>Peter