DM8148ipc channel创建失败

各位大侠，

我的link大致顺序是ipcBitOut->ipcBitsIn->VDec->ipcOutM3->ipcInM3->Swms->Display

link create没问题，但是在动态创建解码通道的时候，dec channel成功之后，ipc channel创建失败，不知道是什么原因

int decCreateChannel(uint32_t chn, uint32_t width, uint32_t height)

{

 YOSA_LOGGER_INFO(MODULE "DEC chn%d_create\n", chn);

 DecLink_addChannelInfo params;

 IpcBitsOutHLOSLink_createChBufParams ipcBufCreateParams;

 Int32 status = 0;

 if (chn >= MAX_DEC_CHANNEL_NUM)

 return OSA_EFAIL;

 memset(&params, 0, sizeof(DecLink_addChannelInfo));

 params.chId = chn;

 params.chInfo.width = width;

 params.chInfo.height = height;

 params.chInfo.scanFormat = 1;

 params.createPrm.targetMaxWidth = width;

 params.createPrm.targetMaxHeight = height;

 params.createPrm.defaultDynamicParams.targetFrameRate = 30; //Not used

 params.createPrm.defaultDynamicParams.targetBitRate = 4 * 1000 * 1000; //Not used;

 params.createPrm.displayDelay = 0; //Have been tested. The different number affect nothing.

 params.createPrm.numBufPerCh = 6;

 params.createPrm.processCallLevel = VDEC_FRAMELEVELPROCESSCALL;

 params.createPrm.dpbBufSizeInFrames = IH264VDEC_DPB_NUMFRAMES_AUTO;

 params.createPrm.algCreateStatus = DEC_LINK_ALG_CREATE_STATUS_CREATE;

 params.createPrm.decodeFrameType = 0;

 params.createPrm.fieldMergeDecodeEnable = FALSE;

 params.createPrm.tilerEnable = FALSE;

 params.createPrm.format = IVIDEO_H264HP;

 params.createPrm.profile = IH264VDEC_PROFILE_ANY;

 params.createPrm.decodeFrameType = VDEC_DECODE_IP_ONLY;

 status = System_linkControl(SYSTEM_LINK_ID_VDEC_0

, DEC_LINK_CMD_CREATE_CHANNEL,&params,sizeof(params), TRUE);

 if (status != 0)

 {

 YOSA_LOGGER_ERROR(MODULE "failed to create dec channel '%d, %d*%d'\n", chn, width, height);

 return OSA_EFAIL;

 }

 memset(&ipcBufCreateParams, 0, sizeof(ipcBufCreateParams));

 ipcBufCreateParams.chId = chn;

 ipcBufCreateParams.totalBitStreamBufferSize =

 (width * height * params.createPrm.numBufPerCh);

 ipcBufCreateParams.chMaxReqBufSize = width * height;

 ipcBufCreateParams.maxQueueDepth = MAX_BUFFERING_QUEUE_LEN_PER_CH;

 status = System_linkControl(

SYSTEM_HOST_LINK_ID_IPC_BITS_OUT_0

, IPCBITSOUT_LINK_CMD_CREATE_CH_BUFFER,

 &ipcBufCreateParams, sizeof(ipcBufCreateParams), TRUE);

 if (status != 0)

 {

 YOSA_LOGGER_ERROR(MODULE "failed to create ipc channel '%d, %d*%d'\n", chn, width, height);

 // delete dec chn

 DecLink_ChannelInfo decChnInfo;

 memset(&decChnInfo, 0, sizeof(DecLink_ChannelInfo));

 decChnInfo.chId = chn;

 status = System_linkControl(SYSTEM_LINK_ID_VDEC_0

,

 DEC_LINK_CMD_DELETE_CHANNEL, &decChnInfo, sizeof(decChnInfo), TRUE);

 return OSA_EFAIL;

 }

 return OSA_SOK;

}

就是在

status = System_linkControl(SYSTEM_HOST_LINK_ID_IPC_BITS_OUT_0

, IPCBITSOUT_LINK_CMD_CREATE_CH_BUFFER,

 &ipcBufCreateParams, sizeof(ipcBufCreateParams), TRUE);

返回了错误

Chris Meng：

你好，

你的chain和dvr rdk的decode only的例子是很类似的，你有参考过么？