Read from YUV file

[gstreader]

How we can read from YUV file using C code and encode that file using x264enc and finally save that encoded output in .264 file?

Please do let me know.
Thanks in advance.

[Tim Müller]

On Tue, 2016-02-16 at 01:23 -0800, gstreader wrote:

> How we can read from YUV file using C code and encode that file using
> x264enc and finally save that encoded output in .264 file?

It depends what format your YUV file is in.

If it's y4m use

  filesrc location=video.y4m ! y4mdec ! ...

If it's just raw YUV data use

  filesrc location=video.yuv ! videoparse format=i420 width=..
height=.. ! ...

Cheers
 -Tim

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[Sebastian Dröge-3]

On Di, 2016-02-16 at 01:23 -0800, gstreader wrote:
> How we can read from YUV file using C code and encode that file using
> x264enc and finally save that encoded output in .264 file?

Take a look at the videoparse element and its properties :)

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[gstreader]

Thanks for the reply.

I have tried this pipeline:
gst-launch-0.10 -v filesrc location=akiyo_cif.yuv ! videoparse format=i420 width=352 height=288 framerate=15/1 ! x264enc ! filesink location=encstr.h264

but it is not working properly.
I am getting the error when I parse that encstr.h264 file using ldecod.
Error:Error while getting the NALU in file format Annex B exit

What am doing wrong here!!!

[Tim Müller]

On Tue, 2016-02-16 at 23:38 -0800, gstreader wrote:

Hi,

You're using an ancient version of GStreamer that is no longer
maintained, you should really try and upgrade to 1.x if possible at
all.

> I have tried this pipeline:
> gst-launch-0.10 -v filesrc location=akiyo_cif.yuv ! videoparse
> format=i420
> width=352 height=288 framerate=15/1 ! x264enc ! filesink
> location=encstr.h264
>
> but it is not working properly.
> I am getting the error when I parse that encstr.h264 file using
> ldecod.
> Error:Error while getting the NALU in file format Annex B exit
>
> What am doing wrong here!!!

I think in older versions x264enc would output H.264 in AVC stream-
format by default. You can force it to bytestream like this:


 ... ! x264enc ! video/x-h264,stream-format=byte-stream ! fakesink

Cheers
 -Tim


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[gstreader]

Thank you very much. It works after set byte-stream=TRUE for x264enc.

[GStreamer-devel mailing list]

Hello, i had written a c program to implement appsink in the pipeline.But i
am getting errors as could not demultiplex stream. Any suggestions?




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[GStreamer-devel mailing list]

Le mar. 16 févr. 2016 04 h 23, gstreader <[hidden email]> a écrit :

How we can read from YUV file using C code and encode that file using x264enc
and finally save that encoded output in .264 file?

You can read raw yuv from file using rawvideoparse element, don't forget to configure it properly.

Please do let me know.
Thanks in advance.




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