Linux/TDA2: what is /home/1920x1080_00.hdr

shuai wang32

Part Number: TDA2

Tool/software: Linux

in usecases\null_src_decode_display\chains_nullSrc_Display.c

strncpy(pPrm->channelParams[chId].nameDataFile, "/home/1920x1080_00.h264", 260); i think is in put src vedio
strncpy(pPrm->channelParams[chId].nameIndexFile, "/home/1920x1080_00.hdr", 260); but what is this ? for what ?

over 7 years ago

0 Suryamani Jena over 7 years ago

TI__Expert 3720 points

Hi,
.h264 file -> input src file
.hdr file -> Index file (size of each frame of input src file)

Regards
Suryamani Jena

0 shuai wang32 over 7 years ago in reply to Suryamani Jena

Genius 4770 points

Hi Suryamani Jena
but how can i get .hdr file ,i only have .h264 vedio
Regards
shuai

0 shuai wang32 over 7 years ago in reply to shuai wang32

Genius 4770 points

i think in the SDK should give some file as an example!

0 Suryamani Jena over 7 years ago in reply to shuai wang32

TI__Expert 3720 points

Hi shuai,
You can generate .hdr file from .h264 file (follow below steps)

Required software:
FFmpeg

-----------------------------------------
Creating index file from input src file
-----------------------------------------
Create index file
ffprobe.exe -show_packets input.h264 > index.idx

On Linux machine:
Extract just "Size" from above generated index file with sed command.

PAT=size
sed -n "/$PAT/p" index.idx | cut -d' ' -f3 >> size_extracted.txt

Now generate binary file from size extracted file, with below command.
Please note that " size_extracted.txt should not contain any string just numbers i.e size of frame "

cat size_extracted.txt | perl -n -e 'printf("%08x\n",$_)' | sed 's/$..$$..$$..$$..$/0x\4\n0x\3\n0x\2\n0x\1/' | xxd -r -p > Size_test.bin && du -b Size_test.bin

Rename Size_test.bin as input.hdr and use it as index file

Regards
Suryamani Jena

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Linux/TDA2: what is /home/1920x1080_00.hdr