How to Insert I-frame or Key-frame in x264enc

[Damiano Pinarello]

Hi,

I'd need IDR frame for h264 dencoding on client side.

I'm using dm365 on server side.
To obtain IDR fram every X fps I used extended parameters in ti-dmai
in Venc1.c, and I added new PROP_IDR_FRAME_INTERVAL in gstreamer in gsttividenc1.c

With this modifcation I added at gst element TIVidenc1 a new parameter idrFrameInterval.

You can see dm365 manual for h264 (d)enconding.

bye
Damiano


On 23:56 Mon 14 Jan     , arpita banerjee wrote:
> I have a server and a client application for video streaming. I have
> used x264enc at server side for encoding.
> I would like to insert a key-frame(IDR or I frame) when any packet
> lost occurs in my video streaming application.
>  I know there is an event GstForceKeyUnit to handle dynamic
> key-frame/I-frame request. Could some one explain me what these
> portion of code does in gstx264enc.c in gst-plugins-ugly-0.10.18 ??
> 
> if (gst_structure_has_name (s, "GstForceKeyUnit")) {
>         /* Set I frame request */
>         GST_OBJECT_LOCK (encoder);
>         encoder->i_type = X264_TYPE_I;
>         encoder->forcekeyunit_event = gst_event_copy (event);
>         GST_EVENT_TYPE (encoder->forcekeyunit_event) =
>             GST_EVENT_CUSTOM_DOWNSTREAM;
>         GST_OBJECT_UNLOCK (encoder);
>         forward = FALSE;
>         gst_event_unref (event);
>       }
> 
> If I create a custom upstream event in my server when any packet lost
> occur and send this event to encoder the above code will work  or not
> to insert key-frame??
> Please explain someone.
> 
> Thanks in advance.
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

-- 

 Damiano PINARELLO
 Embedded Software Developer
 Office Phone: +(39) 031 653679 Ext. 4679
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 Email: damiano.pinarello at bticino.it
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