Fwd: Vaapih264enc and Intra/Key frame request

[Matteo Valdina]

Hi all,

I'm currently using vaapih264enc for a live streaming (RTP) project (1.8.3
for now). I need to generate intra-frame upon an external request (like
packet loss indication).

For asking to the encoder to generate the intra-frame, I'm using this code:

GstEvent* event = gst_video_event_new_downstream_force_key_unit
(GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE, GST_CLOCK_TIME_NONE, TRUE, 1);
gboolean res = gst_element_send_event(encoder_, event);


I tested and analyzed the output stream generated by x264enc and it works.

But when I use vaapih264enc. I see generate SPS, PPS, SEI and Non-IDR
frames.

Does someone try a similar scenario and verify if intra frame is generated
as expected?

I'm also surprised that there is no way to disable periodic key frame
generation. Documentation states 0 for auto computation, accepted range 1 -
300. When I tried with 0 GLib assert that it is not a valid value.

Is it possible to disable this feature?

Best regards
Matteo Valdina

-- 
“There are two ways of constructing a software design: One way is to make
it so simple that there are obviously no deficiencies, and the other way is
to make it so complicated that there are no obvious deficiencies. The first
method is far more difficult.”
- Tony Hoare

-- 
“There are two ways of constructing a software design: One way is to make
it so simple that there are obviously no deficiencies, and the other way is
to make it so complicated that there are no obvious deficiencies. The first
method is far more difficult.”
- Tony Hoare
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