Forum Post: RE: about TSU question C6678

Hi Paula！

   first，thank you for your answer，because I wait for this answer too long time,I think nobody can answer it,so recently

I have not seen your answer,sorry.

  C66x_h264hpvenc_01_00_01_04_ELF can run on a single core core0 successfully;

  C66x_h264hpvenc_01_00_01_04_ELF can run on multicore  successfully,core0 as IVIDMC_TASK_MASTER ;

  Now I have a problem:  when I run C66x_h264hpvenc_01_00_01_04_ELF on the TMS320C6678 EVM, 

   1   for example ,if run on core 1, in a file  encoder.cfg,modified

   ncores                  = 1   CoreTeamMap      = 1;

on a single core run,current core id as IVIDMC_TASK_MASTER , I found that h264hpven can run on core0,but except core 0, on other core      C66x_h264hpvenc_01_00_01_04_ELF can't run,failed reason is sharing region  fialed ,

I found that function  ipcCreateShare(sizeof(H264HPVENC_Shared_MemTab),                                                             (void**)&codecShm);  failed;

because of variable codecShm is null;

so I modified h264hpvenc.cfg file,for example h264hpvenc run on core,,in this file,I modified

SharedRegion.setEntryMeta(0,     { base: Program.global.shmSL2Base,       len: Program.global.shmSL2Size,       ownerProcId: 0,       isValid: true,       cacheEnable: true,           cacheLineSize: 64,       name: "ipc_internal_shared_mem",     });

to

   SharedRegion.setEntryMeta(0,     { base: Program.global.shmSL2Base,       len: Program.global.shmSL2Size,       ownerProcId: 1,       isValid: true,       cacheEnable: true,           cacheLineSize: 64,       name: "ipc_internal_shared_mem",     });

     I found  variable codecShm is non zero, function ipcCreateShare() can run  successfully.C66x_h264hpvenc_01_00_01_04_ELF can run,but I found bits number of output stream is 0,loutArgs->bytesconsumed = 0，function H264HPVENC_encodeFrame() return 0;

    via analyzing,I found H264HPVENC_encodeFrame() only encoded  frame header,when encoding the first macroblock ,not successfully,exit for unkwown reason;

     I want to know,above modification is whether right or not ; if C66x_h264hpvenc_01_00_01_04_ELFwant to run on a single core run successfully except core 0,what  I should do?,How do？Thanks！

2

for example ,if run on core 1 and core2, in a file  encoder.cfg,modified

   ncores                  = 2  

   CoreTeamMap      = 1,2;

on multicore(except core 0) run,for example ,run on core 1and core2,core 1 as IVIDMC_TASK_MASTER, the same question exists;