sample_embedding_folder2/0699500.txt

Ticket Name: Linux/TDA2: what's format the video data (yuv420sp_uv) in buffer?

Query Text:
Part Number: TDA2 Tool/software: Linux i write a algorithm plugin , and it had run. but my algorithm not work. so i want save one frame data to debug in algorithmLink_process function. there is a problem i occured . the slice of my code as follow, the data is YUV420SP_UV format , but i can't play it use yuv player on pc for(bufCntr = 0; bufCntr < numBuffs; bufCntr++) { OSA_memCacheInv((unsigned int) pSysVideoFrameBufferInput->bufAddr[bufCntr], (unsigned int) bufSize[bufCntr]); } frame_count--; if(frame_count == 0) { fp_out = fopen("/home/30.yuv", "wb"); fwrite(pSysVideoFrameBufferInput->bufAddr[0], pInputChInfo->width*pInputChInfo->height, 1, fp_out); fwrite(pSysVideoFrameBufferInput->bufAddr[1], pInputChInfo->width*pInputChInfo->height/2, 1, fp_out); fflush(fp_out); fclose(fp_out); } so , i guess the data storage format in memory is not linear . is right ? can you explain the details to me ? thanks a lot

Responses:
and i run the algorithm plugin on A15

Hi, The data is linear format only. But typically none of the YUV player support YUV420SP format. Can you please confirm if your player support it? Also can you check if luma only looks correct? Rgds, Brijesh

the file is dum_yuv.txt , it seems like that stroge format is tile .dump_yuv.txt

there is the pictures.

Hi, Can you please check the pitch/line offset of the luma and chroma portion of the image? it seems it is different. Also if possible, can you share this dumped image? Rgds, Brijesh

i had upload the dumped file , it is dump_yuv.txt . res is 1280*800. the pitch should equal the width, but i will check it . the chains is NullSource (A15) -> Decode -> Alg_dms (A15) -> Display i dumped the data at Alg_dms Link, before the alg called .

May be decoder output is not correct, can you check before decoder if nullSource output is correct? Rgds, Brijesh

thanks , i solved this problem , the pitch value is not equal 1280 , it is 2048 .