Processors

Processors forum

State
Locked Locked
Replies 5 replies
Subscribers 98 subscribers
Views 661 views
Users 0 members are here

Support feedback

Options

Options

Related

AM5718: about 5718 gstreamer for h264

user4587069

Intellectual 300 points

Part Number: AM5718

hi

I have some questions need help，about gstreamer，I have a test on my device :AM5718 ,convert nv12 to h264 by cmd:

gst-launch-1.0 filesrc location=/opt/dgp/web/video/jpeg3.nv12 ! videoparse width=1280 height=640 format=nv12 framerate=12/1 ! video/x-raw, width=1280, height=640 ! ducatih264enc inter-interval = 1 level=51 profile=100 bitrate=16000 ! filesink location=/opt/dgp/web/video/test.h264

it works. from here I try to write some C code to replace the cmd:

but some error printf:

line 81 is TRUE, I am sure some error in code, ：have a little knowledge of gstreamer. need help

Thank.

over 5 years ago

0 Ramprasad over 5 years ago

TI__Mastermind 30480 points

Hi ,

I think there is issue in

gst_element_link_filtered(source, parse, encodeCaps);

It should have been

gst_element_link_filtered(parse, encoder, encodeCaps);

Can you try with this?

You can try adding --gst-debug==4 when you launch your gst application.

Thanks

RamPrasad

0 user4587069 over 5 years ago in reply to Ramprasad

Intellectual 300 points

Hi,

Thanks for your replay.

I made the following changes

g_object_set(G_OBJECT (parse), "format", 23, NULL); //23： nv12

gst_element_link_filtered(parse, encoder, encodeCaps);

buf "gst_element_link_filtered" return FALSE also,

0 user4587069 over 5 years ago in reply to user4587069

Intellectual 300 points

So...

0 user4587069 over 5 years ago in reply to user4587069

Intellectual 300 points

So. The above problems have been solved，There's a new guy:

I try to code "appsrc" replace "filesrc", and I regist a callback：

g_signal_connect (source, "need-data", G_CALLBACK( _needData ), source );

_needData code to push:

but arm -linux- gcc cannnot find GST_BUFFER_DATA ... :" implicit declaration of function 'GST_BUFFER_DATA'"

I suspect it's the wrong version with gst lib/include ,

How to achieve "push-buffer"?

Thank

0 Ramprasad over 5 years ago in reply to user4587069

TI__Mastermind 30480 points

https://e2e.ti.com/support/processors/f/791/t/518974?AM572x-encoding-application-using-gstreamer

Please refer this thread and give a try.

It is also for same encoding usecase using gstreamer application.

Thanks

RamPrasad