Android Custom codec record

Recently toss a bit of soft encoder, the information on the Internet is very little, tread on the pit to remember

1. Look for a enc code from under Frameworks/media/libstagefright/codecs.

   Nothing is inherited from the simplesoftomxcomponent, and then realize Onfill what, their own encoder is here to achieve, a better understanding.

2. SoftOMXPlugin.cpp Register this encoder, OMX.google.xxx.encoder, just follow the above.

3. Online said only need the above two steps, but actually in my this still can't run up, had to add the log to keep up with

   ACodec.cpp

   There is such a function onallocatecomponent, look at their own definition of the soft or hard-coded, add a mark flags = omxcodec::ksoftwarecodecsonly;

   Setvideoportformattype here also to see, there may be colorformat and format on the need for special handling skip over

   Omxcodec.app

   There is also an array of mime-to-codec, the effect is not carefully read, in case of the addition of

4. So a coder can run, and finally sign up at/etc/media_codecs.xml.
   

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Android Custom codec record