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huashi edited this page Nov 18, 2014 · 10 revisions

This file describes the interface of ISVCDecoder

Class:ISVCDecoder

Initilaize decoder.

Return:
0 - success; otherwise - failed;

Name Type Descritpion
pParam const SDecodingParam * parameter for decoder

Uninitialize the decoder.

Decode one frame.

Return:
0 - success; otherwise -failed;

Name Type Descritpion
pSrc const unsigned char * the h264 stream to be decoded
iSrcLen const int the length of h264 stream
ppDst unsigned char ** buffer pointer of decoded data (YUV)
pStride int * output stride
iWidth int & output width
iHeight int & output height

For slice level DecodeFrame2() (4 parameters input), whatever the function return value is, the output data of I420 format will only be available when pDstInfo->iBufferStatus == 1,. (e.g., in multi-slice cases, only when the whole picture is completely reconstructed, this variable would be set equal to 1.)

Return:
0 - success; otherwise -failed;

Name Type Descritpion
pSrc const unsigned char * the h264 stream to be decoded
iSrcLen const int the length of h264 stream
ppDst unsigned char ** buffer pointer of decoded data (YUV)
pDstInfo SBufferInfo * information provided to API(width, height, etc.)

This function parse input bitstream only, and rewrite possible SVC syntax to AVC syntax.

Return:
0 - success; otherwise -failed;

Name Type Descritpion
pSrc const unsigned char * the h264 stream to be decoded
iSrcLen const int the length of h264 stream
pDstInfo SParserBsInfo * bit stream info

This API does not work for now!! This is for future use to support non-I420 color format output.

Return:
to do ...

Name Type Descritpion
pSrc const unsigned char * the h264 stream to be decoded
iSrcLen const int the length of h264 stream
pDst unsigned char * buffer pointer of decoded data (YUV)
iDstStride int output stride
iDstLen int & bit stream info
iWidth int & output width
iHeight int & output height
iColorFormat int & output color format

Set option for decoder, detail option type, please refer to enumurate DECODER_OPTION.

Return:
CM_RETURN: 0 - success; otherwise - failed;

Name Type Descritpion
eOptionId DECODER_OPTION  
pOption void * option for decoder such as OutDataFormat, Eos Flag, EC method, ...

Get option for decoder, detail option type, please refer to enumurate DECODER_OPTION.

Return:
CM_RETURN: 0 - success; otherwise - failed;

Name Type Descritpion
eOptionId DECODER_OPTION  
pOption void * option for decoder such as OutDataFormat, Eos Flag, EC method, ...

Get the capability of decoder.

Return:
0 - success; otherwise - failed;

Name Type Descritpion
pDecCapability SDecoderCapability * decoder capability

Create decoder.

Return:
0 - success; otherwise - failed;

Name Type Descritpion
ppDecoder ISVCDecoder ** decoder

Destroy decoder.

Return:
void

Name Type Descritpion
pDecoder ISVCDecoder * decoder
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