ppData[0]指向音视频数据,其中保存的是ffmpeg AVFrame 中extended_data数据的第0个值,iDataSize[0]则是该帧数据长度。具体参考头文件SAVCommon.h中SAV_Frame结构体说明。
/**
* video:pointer to the picture planes and the stride of each plane line.
* audio:pointer to the audio data and length.Only pData[0]/iDataSize[0] is used
* data:pointer to the data and length.Only pData[0]/iDataSize[0] is used
* - encode:set by user. The memory is allocated/freed by user.
* - decode:set by library. Video:The memory is allocated/freed by library. Audio:The memory is allocated/freed by user
*/
SAV_TYPE_UINT8* ppData[SAV_IMG_COMPONENT];
SAV_TYPE_INT32 iDataSize[SAV_IMG_COMPONENT];