How to insert user data SEI message in H.264 bitstream?

Kowin Hsieh

on DM36x H.264 encoder FAQ

There are a way to insert user data.

Is the data is inserted in SEI NAL?

Where is the data reside? Where can I find the data in SEI NAL unit??

How can I check if the data is insert successfully???

0 Miguel A. Alanis over 14 years ago

Kowin Hsieh,

I'm moving this post to the multimedia forum as it is related to the encoder FAQ and that team might be able to answer these type of questions.

Also, fyi: http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/100/t/37487.aspx has some guidance on which forum to submit your questions to depending on the area of interest.

regards,

miguel

0 Kowin Hsieh over 14 years ago in reply to Miguel A. Alanis

Hi miguel

Sorry for the wrong post.

The user data will insert at SEI NAL units marked as type user data unregistered.

But there are a different result if you set the lengthUserData<16 and lengthUserData>=16

for example if the lengthUserData>=16 the data will be inserted at beginning of the uuid_iso_11578

but if the lengthUserData<16 the data will be inserted at the location (16-lengthUserData) from the beginning of the uuid_iso_11578

Is this a bug or feature??

0 Yashwant Dutt over 14 years ago in reply to Kowin Hsieh

Hi,

Please check. In case of further queries, please let us know.

regards

Yashwant

0 vigneshwaran sekar over 14 years ago in reply to Yashwant Dutt

hello

i want to implement rtsp on my dm365 can u tell me the procedure

thanks

0 Yashwant Dutt over 14 years ago in reply to vigneshwaran sekar

Hi,

This is a very generic query, can you please elaborate. RTSP is already implemented in IPNC ref design which you can obtain from TI.

regards

Yashwant

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