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How to add new codecs to IGEP GST FRAMEWORK

358 bytes added, 11:20, 3 February 2012
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=  How to add a new codec in IGEP-GST-DSP-FRAMEWORK =
<&lt;span lang="EN-US" />&gt;We will demostrate how to add a new codec inside the IGEP-GST-DSP-FRAMEWORK.
Texas instruments DSP Codecs page it's [http://focus.ti.com/dsp/docs/dspfindtoolswbytooltype.tsp?sectionId=3&tabId=1460&toolTypeId=65&familyId=44 here].
<&lt;span lang="EN-US" />&gt;DM3730 or OMAP3530 accept the codecs Omtimized for OMAP3530 &amp; DM3730 or C64+ DSP based devices.
We will integrate a acc audio encoder in the codec server.
== Procedure ==
=== ''<span lang="EN-US">Step 1 - Download the Codec Package.</span>'' ===
<span lang="EN-US">Get a codec from TI website [http://software-dl.ti.com/dsps/dsps_public_sw/codecs/C64XPlus_Audio/index_FDS.html C64XPlus_Audio_Codecs Product Download Page].</span>
<span lang="EN-US">As you will observe the package name has
&amp; integrate this codec on non-OMAP3 platforms such as DM644x, DM646x,
OMAPL13x'''. To reiterate, it is the same codec package on both OMAP3 and'''
Davinci DVSDK sites.</span><br>
=== ''<span lang="EN-US">Step 2 - Install the Package.</span>'' ===
<span lang="EN-US">Once you have downloaded the codec package
c64xplus_codec_x_xx_xxx_production.bin use the following command to install the
package:</span>
<span lang="EN-US"><span style="color:green">./c64xplus_codec_x_xx_xxx_production.bin</span></span>
<span lang="EN-US" style="color:green">This will give a tar file extract that tar file.</span>
=== ''<span lang="EN-US">Step 3 - Copy your desired Codec inside the server.</span>'' ===
<span lang="EN-US">igep-dsp-gst-framework-3_20_00/codecs-omap3530_4_02_00_00/packages/ti/sdo/codecs</span>
=== ''<span lang="EN-US">Step 4 -&nbsp;</span><span lang="EN-US">Modifications inside the</span>'' Codec Server''===''
<span lang="EN-US">Once the Codec Package is integrated inside
<span lang="EN-US">Now open file&nbsp;</span><span lang="EN-US">igep-dsp-gst-framework-3_20_00/codecs-omap3530_4_02_00_00/packages/ti/sdo/server/cs/codec.cfg</span><br>
<pre><span lang="EN-US">/* Declaration of new codec module */</span>
<span lang="EN-US">var AACHEENC = xdc.useModule('ti.sdo.codecs.aacheenc.ce.AACHEENC');</span>
<&lt;span lang="EN-US">&gt;/*<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;The XDC file in the codec directory (i.e.
AACHEENC.xdc) contains the different sections that are defined in the algorithm
that require to be mapped to defined memory sections by the server. Usually
this memory definitions are contained in the TCF file (''server.tcf''). For example to fulfill the requirements for the AACHE
encoder algorithm, and continuing with the variable defined before, the
following entries are added to the configuration file: <&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;*/<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;/* in my case with aacheenc */<&lt;/span><&gt;&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;AACHEENC.serverFxns = "AUDENC1_SKEL";<&lt;/span>&gt;
<&lt;span lang="EN-US" /><&gt;&lt;span lang="EN-US">&gt;AACHEENC.stubFxns = "AUDENC1_STUBS";<&lt;/span><&gt;&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;AACHEENC.useCache = false;<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;AACHEENC.alg.watermark = false;<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;AACHEENC.alg.codeSection = codeSection;<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;AACHEENC.alg.udataSection = udataSection;<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;AACHEENC.alg.dataSection = dataSection;<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;/* Add the Algorithm to the server by adding
a new set to the ''Server.algs'' array.
For example to add the AACHEENCODER algorithm, the following entry needs to be
added */<&lt;/span>&gt;
<&lt;span lang="EN-US"><&gt;&lt;o:p>&gt;&nbsp;<&lt;/o:p><&gt;&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;{name: "aacheenc", mod: AACHEENC ,threadAttrs: {<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;stackMemId: 0, priority: Server.MINPRI + 3},<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;groupId &nbsp;: 2,<&lt;/span>&gt;
<&lt;span lang="EN-US">&gt;&nbsp;&nbsp;&nbsp; },<&lt;/span>&gt;
</pre>
<br>
=== ''<span lang="EN-US">Step 5 - Validation</span>'' ===
<span lang="EN-US">To minimize any errors during the building
of the Server, add the codec to the validation entries in </span><span class="Teletype"><span lang="EN-US">package.xs</span></span><span lang="EN-US"> file
of the server, which is in same directory as codec.cfg</span><pre><&lt;span lang="EN-US">&gt;/* in my case with aacheenc */<&lt;/span> <&gt; &lt;span lang="EN-US">&gt;validate_one_codec( "ti.sdo.codecs.aacheenc", "AACHEENC" );<&lt;/span><&gt;&lt;br>&gt;</pre> <&lt;span lang="EN-US" />&gt;
=== <span lang="EN-US">''Step 6 - Add codec in gstreamer''</span> ===
<span lang="EN-US">Open file gstticodecs_dm3730.c located
in&nbsp; igep-dsp-gst-framework-3_20_00/gstreamer-ti_svnr962/src</span>
<span lang="EN-US">directory and add following lines.</span><pre><&lt;span lang="EN-US"><&gt;&lt;o:p> <&gt; &lt;/o:p><&gt;&lt;/span><&gt;&lt;span lang="EN-US">&gt;/* in my case with aacheenc */<&lt;/span> <&gt; &lt;span lang="EN-US">&gt;{
"AAC Audio Encoder", /* String name of codec used by plugin*/
"aacheenc", /* String name of codec used by CE */
codecServer /* Engine that contains this codec */
},
<&lt;!--[if &nbsp;!supportLineBreakNewLine]-->&gt;<&lt;!--[endif]--><&gt;&lt;/span>&gt;</pre> <&lt;span lang="EN-US" />&gt;
=== <span lang="EN-US">Step 7 - Compile</span> ===
<span lang="EN-US">Compile dmai, codecs and gst_ti in
IGEP-GST-DSP framework, copy newly generated files cs.x64P and
ligstticodecplugin.so on board and test with&nbsp;
gstreamer pipeline.</span>
<span lang="EN-US"><&lt;o:p>&gt;&nbsp;<&lt;/o:p>&gt;</span>
== <span lang="EN-US"><&lt;o:p>&gt;References<&lt;/o:p>&gt;</span> ==
*<span lang="EN-US"><&lt;o:p><&gt;&lt;/o:p>&gt;</span><span lang="EN-US">[http://processors.wiki.ti.com/index.php/How_do_I_Integrate_new_codecs_into_DVSDK#Modifications_inside_the_Codec_Server <span style="color:windowtext;text-decoration:none;text-underline:none">http://processors.wiki.ti.com/index.php/How_do_I_Integrate_new_codecs_into_DVSDK#Modifications_inside_the_Codec_Server</span>]</span>
*<span lang="EN-US">[http://www.igep.es/index.php?option=com_kunena&Itemid=97&func=view&catid=80&id=6765&limit=6&limitstart=12#6806 <span style="color:windowtext;text-decoration:none;text-underline:none">http://www.igep.es/index.php?option=com_kunena&amp;Itemid=97&amp;func=view&amp;catid=80&amp;id=6765&amp;limit=6&amp;limitstart=12#6806</span>]</span><br>
<span lang="EN-US"><&lt;span style="color:windowtext;text-decoration:none;text-underline:none" />&gt;</span>
== Thanks ==
Many thanks to&nbsp;Pratik G Shinde for this contribution.
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