Migration Guide for DM36x H.264 version 2.3 codecs

Migration Guide for DM36x H.264 version 2.3 codecs

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Migration guide: DM36x ver 2.3 H.264 codec

This document describes the changes done in H.264 ver 2.3 codec over the previous 2.2 codec. It outlines the advantages to migrate to the new codec and the steps needed to do so. This wikitopic is applicable for release on and after 2.30.00.00

New Features in Version 2.3 H.264 codec

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New DM36x version 2.3 H.264 codec is an enhanced version of the existing ver 2.2 codec that supports more features.

The salient new features are:

• H.264 encoder
  • New encoder mode introduced with improved quality

Comparison between version 2.3 and 2.2 codec

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For details about features supported in version 2.1 please visit Version 2.2 codec.

There are no changes in the Memtab requirement or the dma channel requirement.For details regarding the performance of the encoder please refer datasheet.

API changes in version 2.2 codec

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There are changes in extended parameter of DM365 encoder when compared to ver 2.2. The changes are listed below –

IH264VENC_Params

Parameter	Ver. 2.3	Ver. 2.2	Comments
encQuality	Value 0,1,2,3	Value 0,2,3	New encoder mode for improved quality.

How to integrate ver 2.3 codec in existing application?

• In case application has already migrated to ver 2.2 codec, just replace the existing codec RTSC package with the new ver 2.3 codec RTSC package and rebuild the application. In case the existing application is built on ver 1.1 or prior codec, please refer to Migartion guide to ver 2.0 codec before integrating this codec.
• The codec can work in DVSDK 2.1 and 3.1 demo and DVTB(base class) by just replacing the existing ver 2.2 library.
• There are no changes in the requirement of memory or EDMA channels. It is same as previous version 2.2
• Since there are no new extended parameters introduced in this release compared to pervious version 2.2, the same application can be used. To use the new features, changes mentioned above have to incorporated. Please refer to the new interface file, sample test application and user guide to understand the changes in detail.