From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D51B2C369AB for ; Thu, 24 Apr 2025 10:31:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1u7tr0-00047b-67; Thu, 24 Apr 2025 06:30:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1u7tqo-00045E-Lu for qemu-devel@nongnu.org; Thu, 24 Apr 2025 06:30:41 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1u7tqm-0007Mt-1H for qemu-devel@nongnu.org; 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Thu, 24 Apr 2025 10:30:28 +0000 (UTC) Received: from redhat.com (unknown [10.42.28.118]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 65ED3195608D; Thu, 24 Apr 2025 10:30:25 +0000 (UTC) Date: Thu, 24 Apr 2025 11:30:22 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Dietmar Maurer Cc: marcandre.lureau@redhat.com, qemu-devel@nongnu.org Subject: Re: [PATCH v3 4/9] h264: search for available h264 encoder Message-ID: References: <20250418112953.1744442-1-dietmar@proxmox.com> <20250418112953.1744442-5-dietmar@proxmox.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250418112953.1744442-5-dietmar@proxmox.com> User-Agent: Mutt/2.2.14 (2025-02-20) X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.294, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Fri, Apr 18, 2025 at 01:29:48PM +0200, Dietmar Maurer wrote: > The search list is currently hardcoded to: ["x264enc", "openh264enc"] > > x264enc: is probably the best available software encoder > openh264enc: lower quality, but available on more systems. > > We restrict encoders to a known list because each encoder requires > fine tuning to get reasonable/usable results. > > Signed-off-by: Dietmar Maurer > --- > ui/vnc-enc-h264.c | 89 +++++++++++++++++++++++++++++++++++++++-------- > ui/vnc.h | 1 + > 2 files changed, 75 insertions(+), 15 deletions(-) > > diff --git a/ui/vnc-enc-h264.c b/ui/vnc-enc-h264.c > index 3abe6a1528..047f4a3128 100644 > --- a/ui/vnc-enc-h264.c > +++ b/ui/vnc-enc-h264.c > @@ -172,9 +220,20 @@ static bool create_encoder_context(VncState *vs, int w, int h) > > bool vnc_h264_encoder_init(VncState *vs) > { > + const char *encoder_name; > + > g_assert(vs->h264 == NULL); > > + encoder_name = get_available_encoder(); > + if (encoder_name == NULL) { > + VNC_DEBUG("No H264 encoder available.\n"); > + return -1; This method has return type 'bool', not 'int', this needs to be 'false'. > + } > + > vs->h264 = g_new0(VncH264, 1); > + vs->h264->encoder_name = encoder_name; > + > + VNC_DEBUG("Allow H264 using encoder '%s`\n", encoder_name); > > return true; > } With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|