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POIs it possible to create multiple instances of OMXCodec using stagefright
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copied!<p>I want to use <code>libstagefright.so</code> in android phones for media operations. I have explored example given in <a href="http://vec.io/posts/use-android-hardware-decoder-with-omxcodec-in-ndk" rel="nofollow">this</a> page. I have been trying to implement the same. While testing this implementation for multiple <code>OMXCodec</code> instances, it's output buffer conflicts with each other.</p> <p>I have developed an android project in eclipse and linked <code>libstagefright</code> under JNI. I have added two classes <code>CustomDataSource</code> (Which derives <code>MediaSource</code>) and <code>CustomOmxDecoder</code>. <code>CustomDataSource</code> class implements all virtual methods of <code>MediaSource</code>. In <code>CustomOmxDecoder</code> class, I call <code>OMXCodec::Create</code> method. Then I have created two threads which have individual instance of <code>CustomOmxDecoder</code>. Using this instances I call a method <code>ProcessNextFrame</code> in which I call the main, <code>videoDecoder->read()</code> method. This is how my setup is.</p> <p>Now, When I run the app with above mentioned setup. <code>OMXCodec</code> decodes frames of both source but when I render it on surface, is shows me conflicted output. It seems like decoded buffer of both source get meshed up internally somehow. I am creating two h264 decoder simultaneously. What can be the problem here? Can it be related to <code>MediaBufferGroup</code>? I acquirebuffer in <code>CustomDataSource</code> and release buffer in <code>CustomOmxDecoder</code>'s <code>ProcessNextFrame</code> after calling <code>videoDecoder->read()</code> call.</p> <p>Any suggestion will be great. Thanks.</p>

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