Zap::VoiceDecoder class Reference

Zap::VoiceDecoder Class Reference

#include <voiceCodec.h>

Inheritance diagram for Zap::VoiceDecoder:

Detailed Description

The VoiceDecoder class is an abstract base class for the various voice decompression algorithms supported by Zap - initially just the HawkVoice variable bitrate LPC10 codec.

It takes a buffer compressed with the appropriate VoiceEncoder analogue and returns the decompressed 16 bit sample buffer.

Public Member Functions

ByteBufferPtr decompressBuffer (ByteBufferRef compressedBuffer)

Private Member Functions

virtual U32 getSamplesPerFrame ()=0

virtual U32 getAvgCompressedFrameSize ()=0

virtual U32 decompressFrame (S16 *framePtr, U8 *inputPtr, U32 inSize)=0

Member Function Documentation

virtual U32 Zap::VoiceDecoder::getSamplesPerFrame ( ) [private, pure virtual]

Implemented in Zap::LPC10VoiceDecoder, and Zap::GSMVoiceDecoder.

virtual U32 Zap::VoiceDecoder::getAvgCompressedFrameSize ( ) [private, pure virtual]

Implemented in Zap::LPC10VoiceDecoder, and Zap::GSMVoiceDecoder.

virtual U32 Zap::VoiceDecoder::decompressFrame ( S16 * framePtr,

U8 * inputPtr,

U32 inSize

) [private, pure virtual]

Implemented in Zap::LPC10VoiceDecoder, and Zap::GSMVoiceDecoder.

ByteBufferPtr Zap::VoiceDecoder::decompressBuffer ( ByteBufferRef compressedBuffer )