From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 98005] VCE dual instance encoding inconsistent since st/va: enable dual instances encode by sync surface Date: Mon, 21 Nov 2016 19:54:28 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0642755231==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id DD99D6E5B5 for ; Mon, 21 Nov 2016 19:54:27 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0642755231== Content-Type: multipart/alternative; boundary="14797580671.2fA49.26494"; charset="UTF-8" --14797580671.2fA49.26494 Date: Mon, 21 Nov 2016 19:54:27 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D98005 --- Comment #18 from Boyuan Zhang --- (In reply to Andy Furniss from comment #14) > but I am afraid the patches regress cbr so the out of order frames near I= frames issue is back. The "out of order" issue was caused by sending last p and next i frame toge= ther for dual instance encoding, which has already been solved and shouldn't aff= ect by this patch. I suspect the i-frame has less QP (quality) than p-frame in = cbr case (to meet constant bit-rate) where bit-rate is not high enough, as a re= sult you might see low picture quality for each i-frame. Please confirm with high bitrate or using analyser to check the order. If you still see the out-of-order issue, please share the clip and command. Thanks --=20 You are receiving this mail because: You are the assignee for the bug.= --14797580671.2fA49.26494 Date: Mon, 21 Nov 2016 19:54:27 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 18 on bug 98005<= /a> from Boyuan Zhang 
(In reply to Andy Furniss from comment #14)
> but I am afraid the patches regress cbr so the o=
ut of order frames near I frames issue is back.

The "out of order" issue was caused by sending last p and next i =
frame together
for dual instance encoding, which has already been solved and shouldn't aff=
ect
by this patch. I suspect the i-frame has less QP (quality) than p-frame in =
cbr
case (to meet constant bit-rate) where bit-rate is not high enough, as a re=
sult
you might see low picture quality for each i-frame. Please confirm with high
bitrate or using analyser to check the order.

If you still see the out-of-order issue, please share the clip and command.

Thanks

You are receiving this mail because:
  • You are the assignee for the bug.
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