#include?“vpudecode.h“

VpuDecode::VpuDecode（）
{
????dec?=?NULL;
????stream_buf?=?NULL;
????stream_size?=?0;
????dec_buf?=?NULL;
????dec_size?=?0;
}

VpuDecode::~VpuDecode（）
{

}

int?VpuDecode::poll（void）
{
????DecHandle?handle?=?dec->Handle;
????RetCode?ret;
????int?loop_id;

????int?is_waited_int?=?0;

????memset（&par.decparam0sizeof（DecParam））;

????par.decparam.dispReorderBuf?=?0;
????par.decparam.skipframeMode?=?0;?//跳幀模式關(guān)
????par.decparam.skipframeNum?=?0;
????par.decparam.iframeSearchEnable?=?0;????//I幀搜索關(guān)閉

????ret?=?vpu_DecStartOneframe（handle?&par.decparam）;??//解碼一幀
????if?（ret?==?RETCODE_JPEG_EOS）????//最后一幀
????{
????????printf（“?JPEG?bitstream?is?end\n“）;
????????return?-1;
????}
????else?if?（ret?==?RETCODE_JPEG_BIT_EMPTY）?//圖片位空
????{
????????printf（“?RETCODE_JPEG_BIT_EMPTY\n“）;
????????return?-1;
????}

????if?（ret?!=?RETCODE_SUCCESS）
????{
????????printf（“DecStartOneframe?failed?ret=%d\n“?ret）;
????????return?-1;
????}

????is_waited_int?=?0;
????loop_id?=?0;
????while?（vpu_IsBusy（））????//等待解碼完成
????{

????????if?（loop_id?==?50）
????????{
????????????vpu_SWReset（handle?0）;
????????????return?-1;
????????}

????????if?（vpu_WaitForInt（100）?==?0）
????????????is_waited_int?=?1;
????????loop_id?++;
????}

????if?（!is_waited_int）
????????vpu_WaitForInt（100）;

????ret?=?vpu_DecGetOutputInfo（handle?&par.outinfo）;???//讀取解碼信息


//????usleep（0）;??//讓出線程時(shí)間片

????if?（ret?!=?RETCODE_SUCCESS）?{
????????printf（“vpu_DecGetOutputInfo?failed?Err?code?is?%d\n“
????????????“\tframe_id?=?%d\n“?ret?（int）par.frame_id）;
????????return?-1;
????}

????if?（par.outinfo.decodingSuccess?==?0）
????{
????????printf（“Incomplete?finish?of?decoding?process.\n“
????????????“\tframe_id?=?%d\n“?（int）par.frame_id）;

????????return?-1;
????}

????if?（par.outinfo.decodingSuccess?&?0x10）
????{
????????printf（“vpu?needs?more?bitstream?in?rollback?mode\n“
????????????“\tframe_id?=?%d\n“?（int）par.frame_id）;
????????return?0;
????}

????if?（par.outinfo.notSufficientPsBuffer）?{
????????printf（“PS?Buffer?overflow\n“）;
????????return?-1;
????}

????if?（par.outinfo.notSufficientSliceBuffer）?{
????????printf（“Slice?Buffer?overflow\n“）;
????????return?-1;
????}

????if（par.outinfo.indexframeDecoded?>=?0）
????{
????????//是解碼圖片時(shí)出現(xiàn)的許多錯(cuò)誤宏塊大概101幀出現(xiàn)一次，原因未知
????????if?（par.outinfo.numOfErrMBs）?{
????????????par.totalNumofErrMbs?+=?par.outinfo.numOfErrMBs;
????????????printf（“Num?of?Error?Mbs?:?%d?in?frame?:?%d?\n“
????????????????????par.outinfo.numOfErrMBs?par.frame_id）;
????????}

????????par.frame_id++;?//幀計(jì)數(shù)

????????dec_width?=?par.outinfo.decPicWidth;
????????dec_height?=?par.outinfo.decPicHeight;
????????isIDR?=?par.outinfo.idrFlg;
????????int?index?=?par.outinfo.indexframeDecoded;
????????dec_buf?=?（u8?*）（dec->pfbpool[index]->addrY?+
?????????????????????????dec->pfbpool[index]->desc.virt_uaddr?-
?????????????????????????dec->pfbpool[index]->desc.p

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????19532??2020-10-25?17:50??vpudecode.cpp

?????文件???????4697??2020-10-25?17:49??vpudecode.h

-----------?---------??----------?-----??----

????????????????24229????????????????????2