From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f45.google.com (mail-ej1-f45.google.com [209.85.218.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 554AD437E; Mon, 28 Mar 2022 17:10:19 +0000 (UTC) Received: by mail-ej1-f45.google.com with SMTP id yy13so30070733ejb.2; Mon, 28 Mar 2022 10:10:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Ofjd2BLbf/d57rh07u4nbPhNk5X3kqpA9oKVtxjKxc4=; b=RdJbBdxYbiTOUg5lxR0R+3/uOKZOUPBBpsyEkMPR8HHH3Wj7UmqQ0sxQA+kkEx92pP oce38WRh3IhgxR9b2W6uMT1D9+r/0P1SpUwYPi2tFx6GrEQmLX1anrY3S/AYbj7Tggei urziVxnW+ZtH9/qhxaj1Xfafl9l2o7GoXkfPeIu/Xrxf/85l/uuFuYCTIk25IxrCOnSl 73TkmiNmg2xjWech/yEn3BCp7ycy20cfnr3ShHoF3LTMke99AY6KPD7ZeD84aEj8RaRE XlDOqkH9+eq5M3h4qYxL3A8KBiJfQ8dLHcCju/ft3Ymfl0LgwqHkDqEOpV+2ZzuUzFS3 xZvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Ofjd2BLbf/d57rh07u4nbPhNk5X3kqpA9oKVtxjKxc4=; b=ofoy4QdW3ah6OGtKnrECNV/YjgCDg6Anpvu/wBcK78SIcAzLbAa/AdXUN87x9K5Ubd 89CAkTLuhJq8ufRPANqTkELhEU/MdSLydkHhlg4XBrd7UGhGfhCISLUOE3pH6VfPDuqf tEFEbm7v7CZdmLlqxoQQF4WYBVCumPciAQDERESBJw9d0TFPtlPU0QW1dq7ug8YN23XK xAlWkMiv1guMNbBDIWELeqcWSLRF0T9QbAR3FRA+zyMm90sDMIlEx/QaW/VMl42nUHcQ c3OuBp0CYDOdL/5FhB/4p5mKp+BQEMjJLdXSpt3MO319QIFajhg0uUE5N9MEqku7LFt+ Rzrg== X-Gm-Message-State: AOAM532etLhTWTT/D0g6ZRL5jJB107IIKFLtD0EYDduxel7Un9xPtKeO x1bQwvtqYqAKsyF1rYApxUs= X-Google-Smtp-Source: ABdhPJyqg4BdnBj4b8BiPKRMBVJOYfgoYQTkh+JHfQmfe8ltITzE2pv4VlnjsBwMAjCa2rMFVr44bw== X-Received: by 2002:a17:907:728b:b0:6df:8f3b:28ae with SMTP id dt11-20020a170907728b00b006df8f3b28aemr28825891ejc.336.1648487417609; Mon, 28 Mar 2022 10:10:17 -0700 (PDT) Received: from jernej-laptop.localnet (cpe-86-58-32-107.static.triera.net. [86.58.32.107]) by smtp.gmail.com with ESMTPSA id j9-20020a170906534900b006df9b29eaf1sm6174022ejo.8.2022.03.28.10.10.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Mar 2022 10:10:16 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: linux-media@vger.kernel.org, Sebastian Fricke Cc: acourbot@chromium.org, tfiga@chromium.org, hverkuil-cisco@xs4all.nl, Sebastian Fricke , Mauro Carvalho Chehab , Maxime Ripard , Paul Kocialkowski , Greg Kroah-Hartman , Chen-Yu Tsai , open list , "open list:STAGING SUBSYSTEM" , "moderated list:ARM/Allwinner sunXi SoC support" , "open list:ARM/Allwinner sunXi SoC support" Subject: Re: [RFC PATCH v3 1/2] media: docs-rst: Append HEVC specific term Date: Mon, 28 Mar 2022 19:10:15 +0200 Message-ID: <2095465.irdbgypaU6@jernej-laptop> In-Reply-To: <20220327084308.9053-2-sebastian.fricke@collabora.com> References: <20220327084308.9053-1-sebastian.fricke@collabora.com> <20220327084308.9053-2-sebastian.fricke@collabora.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Dne nedelja, 27. marec 2022 ob 10:43:08 CEST je Sebastian Fricke napisal(a): > Describe the coding tree unit as replacement for the macroblock in the > HEVC codec. Highlight a key difference of the HEVC codec to predecessors > like AVC(H.264) to give a better overview of the differences between the > coding standards. >=20 Looks good to me. Acked-by: Jernej Skrabec Best regards, Jernej > Signed-off-by: Sebastian Fricke > --- > Documentation/userspace-api/media/v4l/dev-decoder.rst | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) >=20 > diff --git a/Documentation/userspace-api/media/v4l/dev-decoder.rst > b/Documentation/userspace-api/media/v4l/dev-decoder.rst index > 3cf2b496f2d0..eb5b1b1e3a51 100644 > --- a/Documentation/userspace-api/media/v4l/dev-decoder.rst > +++ b/Documentation/userspace-api/media/v4l/dev-decoder.rst > @@ -72,6 +72,11 @@ coded resolution > coded width > width for given coded resolution. >=20 > +coding tree unit > + processing unit of the HEVC codec (=E2=89=98 macroblock units in H.26= 4, VP8, > VP9); + can use block structures of up to 64=C3=9764 pixels; > + Good at sub-partitioning the picture into variable sized structures. > + > decode order > the order in which frames are decoded; may differ from display order = if > the coded format includes a feature of frame reordering; for decoders, @@ > -104,7 +109,8 @@ keyframe > macroblock > a processing unit in image and video compression formats based on lin= ear > block transforms (e.g. H.264, VP8, VP9); codec-specific, but for most of = =2D=20 > popular codecs the size is 16x16 samples (pixels). > + popular codecs the size is 16x16 samples (pixels). The HEVC codec use= s a > + slightly more flexible processing unit called coding tree unit (CTU). >=20 > OUTPUT > the source buffer queue; for decoders, the queue of buffers containing 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 6F12CC433EF for ; Mon, 28 Mar 2022 17:11:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=huDpssboPHZiYK7U2ME+XZEB6Pj19JZya1l3hTLmkh0=; b=km0Bz/AlqlkRad V6e+7YEC29xwgXraZkHsbMaxTnDaTI4hS47T4thYfkQv0GxDJsxJd0hx28s8VoqrKjtnoGZLlx8ZV 1ijEgrIb/VYnXsoxI/6axJYNi+wGqTCMBSn9Xeulq6BTbAwkcfMe/ev42TSA/hnSlvx7dzphAzAp9 CyIL35O/2YuhYJQliLDge+vGFtlhOckRYDBrXm8/BpqnS//ZM7xlutNNGEfdE6oTHPPhZZ9a20qMJ RRSUvlKuF00tyOJeqKu0jwJJ7nsMuZip4GP8mg/KMwpuWd/TOuw11Jze7PLNivW9gcMdHb4m92o5R D6B26ejo9EvN/SzpoBBA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nYssp-009bAK-0B; Mon, 28 Mar 2022 17:10:23 +0000 Received: from mail-ej1-x62b.google.com ([2a00:1450:4864:20::62b]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nYssl-009b8l-2i for linux-arm-kernel@lists.infradead.org; Mon, 28 Mar 2022 17:10:20 +0000 Received: by mail-ej1-x62b.google.com with SMTP id pv16so30111114ejb.0 for ; Mon, 28 Mar 2022 10:10:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Ofjd2BLbf/d57rh07u4nbPhNk5X3kqpA9oKVtxjKxc4=; b=RdJbBdxYbiTOUg5lxR0R+3/uOKZOUPBBpsyEkMPR8HHH3Wj7UmqQ0sxQA+kkEx92pP oce38WRh3IhgxR9b2W6uMT1D9+r/0P1SpUwYPi2tFx6GrEQmLX1anrY3S/AYbj7Tggei urziVxnW+ZtH9/qhxaj1Xfafl9l2o7GoXkfPeIu/Xrxf/85l/uuFuYCTIk25IxrCOnSl 73TkmiNmg2xjWech/yEn3BCp7ycy20cfnr3ShHoF3LTMke99AY6KPD7ZeD84aEj8RaRE XlDOqkH9+eq5M3h4qYxL3A8KBiJfQ8dLHcCju/ft3Ymfl0LgwqHkDqEOpV+2ZzuUzFS3 xZvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Ofjd2BLbf/d57rh07u4nbPhNk5X3kqpA9oKVtxjKxc4=; b=XkSwzTgIF4awKMhFOIX/hQOD02Qgd0bLkPaJqur2OnUfOfIt5TbedY2g2hMNrL6+lZ 2UteTpK75vUHmPJaDHpSPf5um8Mo2sGBnjk86QYHJjtYHid5lFKJlcVMFtQCTPuvwo3H aIPnzm2X/eR5dZUFgu6bAZ4ojEKjq5wlTrvm5eDEQn1ktywhszzuYctxctVENm+4giCA 0WTQGJqRZ7BiR0R/tL9OYhU8bf4ONM7kV/gmspq4RMya3YlUGDZ7zvNkMOWqHgtYYZbq IJxAiA3KQfiIZIPfhy0pGpoC7vgtgl3bGKZ+vfQ6lKGxH2LnO/wGXTy5D/8/QeZOkMFj ZkvQ== X-Gm-Message-State: AOAM532cafc9ewv10BOhbntRiJi1MJw+WmRS4KJE3MUW33aCmwFKlIPH sc+jCe2My4CMdVKLrXqe0/M= X-Google-Smtp-Source: ABdhPJyqg4BdnBj4b8BiPKRMBVJOYfgoYQTkh+JHfQmfe8ltITzE2pv4VlnjsBwMAjCa2rMFVr44bw== X-Received: by 2002:a17:907:728b:b0:6df:8f3b:28ae with SMTP id dt11-20020a170907728b00b006df8f3b28aemr28825891ejc.336.1648487417609; Mon, 28 Mar 2022 10:10:17 -0700 (PDT) Received: from jernej-laptop.localnet (cpe-86-58-32-107.static.triera.net. [86.58.32.107]) by smtp.gmail.com with ESMTPSA id j9-20020a170906534900b006df9b29eaf1sm6174022ejo.8.2022.03.28.10.10.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Mar 2022 10:10:16 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: linux-media@vger.kernel.org, Sebastian Fricke Cc: acourbot@chromium.org, tfiga@chromium.org, hverkuil-cisco@xs4all.nl, Sebastian Fricke , Mauro Carvalho Chehab , Maxime Ripard , Paul Kocialkowski , Greg Kroah-Hartman , Chen-Yu Tsai , open list , "open list:STAGING SUBSYSTEM" , "moderated list:ARM/Allwinner sunXi SoC support" , "open list:ARM/Allwinner sunXi SoC support" Subject: Re: [RFC PATCH v3 1/2] media: docs-rst: Append HEVC specific term Date: Mon, 28 Mar 2022 19:10:15 +0200 Message-ID: <2095465.irdbgypaU6@jernej-laptop> In-Reply-To: <20220327084308.9053-2-sebastian.fricke@collabora.com> References: <20220327084308.9053-1-sebastian.fricke@collabora.com> <20220327084308.9053-2-sebastian.fricke@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220328_101019_148963_F38B9927 X-CRM114-Status: GOOD ( 18.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org RG5lIG5lZGVsamEsIDI3LiBtYXJlYyAyMDIyIG9iIDEwOjQzOjA4IENFU1QgamUgU2ViYXN0aWFu IEZyaWNrZSBuYXBpc2FsKGEpOgo+IERlc2NyaWJlIHRoZSBjb2RpbmcgdHJlZSB1bml0IGFzIHJl cGxhY2VtZW50IGZvciB0aGUgbWFjcm9ibG9jayBpbiB0aGUKPiBIRVZDIGNvZGVjLiBIaWdobGln aHQgYSBrZXkgZGlmZmVyZW5jZSBvZiB0aGUgSEVWQyBjb2RlYyB0byBwcmVkZWNlc3NvcnMKPiBs aWtlIEFWQyhILjI2NCkgdG8gZ2l2ZSBhIGJldHRlciBvdmVydmlldyBvZiB0aGUgZGlmZmVyZW5j ZXMgYmV0d2VlbiB0aGUKPiBjb2Rpbmcgc3RhbmRhcmRzLgo+IAoKTG9va3MgZ29vZCB0byBtZS4K CkFja2VkLWJ5OiBKZXJuZWogU2tyYWJlYyA8amVybmVqLnNrcmFiZWNAZ21haWwuY29tPgoKQmVz dCByZWdhcmRzLApKZXJuZWoKCj4gU2lnbmVkLW9mZi1ieTogU2ViYXN0aWFuIEZyaWNrZSA8c2Vi YXN0aWFuLmZyaWNrZUBjb2xsYWJvcmEuY29tPgo+IC0tLQo+ICBEb2N1bWVudGF0aW9uL3VzZXJz cGFjZS1hcGkvbWVkaWEvdjRsL2Rldi1kZWNvZGVyLnJzdCB8IDggKysrKysrKy0KPiAgMSBmaWxl IGNoYW5nZWQsIDcgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQo+IAo+IGRpZmYgLS1naXQg YS9Eb2N1bWVudGF0aW9uL3VzZXJzcGFjZS1hcGkvbWVkaWEvdjRsL2Rldi1kZWNvZGVyLnJzdAo+ IGIvRG9jdW1lbnRhdGlvbi91c2Vyc3BhY2UtYXBpL21lZGlhL3Y0bC9kZXYtZGVjb2Rlci5yc3Qg aW5kZXgKPiAzY2YyYjQ5NmYyZDAuLmViNWIxYjFlM2E1MSAxMDA2NDQKPiAtLS0gYS9Eb2N1bWVu dGF0aW9uL3VzZXJzcGFjZS1hcGkvbWVkaWEvdjRsL2Rldi1kZWNvZGVyLnJzdAo+ICsrKyBiL0Rv Y3VtZW50YXRpb24vdXNlcnNwYWNlLWFwaS9tZWRpYS92NGwvZGV2LWRlY29kZXIucnN0Cj4gQEAg LTcyLDYgKzcyLDExIEBAIGNvZGVkIHJlc29sdXRpb24KPiAgY29kZWQgd2lkdGgKPiAgICAgd2lk dGggZm9yIGdpdmVuIGNvZGVkIHJlc29sdXRpb24uCj4gCj4gK2NvZGluZyB0cmVlIHVuaXQKPiAr ICAgcHJvY2Vzc2luZyB1bml0IG9mIHRoZSBIRVZDIGNvZGVjICjiiZggbWFjcm9ibG9jayB1bml0 cyBpbiBILjI2NCwgVlA4LAo+IFZQOSk7ICsgICBjYW4gdXNlIGJsb2NrIHN0cnVjdHVyZXMgb2Yg dXAgdG8gNjTDlzY0IHBpeGVsczsKPiArICAgR29vZCBhdCBzdWItcGFydGl0aW9uaW5nIHRoZSBw aWN0dXJlIGludG8gdmFyaWFibGUgc2l6ZWQgc3RydWN0dXJlcy4KPiArCj4gIGRlY29kZSBvcmRl cgo+ICAgICB0aGUgb3JkZXIgaW4gd2hpY2ggZnJhbWVzIGFyZSBkZWNvZGVkOyBtYXkgZGlmZmVy IGZyb20gZGlzcGxheSBvcmRlciBpZgo+IHRoZSBjb2RlZCBmb3JtYXQgaW5jbHVkZXMgYSBmZWF0 dXJlIG9mIGZyYW1lIHJlb3JkZXJpbmc7IGZvciBkZWNvZGVycywgQEAKPiAtMTA0LDcgKzEwOSw4 IEBAIGtleWZyYW1lCj4gIG1hY3JvYmxvY2sKPiAgICAgYSBwcm9jZXNzaW5nIHVuaXQgaW4gaW1h Z2UgYW5kIHZpZGVvIGNvbXByZXNzaW9uIGZvcm1hdHMgYmFzZWQgb24gbGluZWFyCj4gYmxvY2sg dHJhbnNmb3JtcyAoZS5nLiBILjI2NCwgVlA4LCBWUDkpOyBjb2RlYy1zcGVjaWZpYywgYnV0IGZv ciBtb3N0IG9mIC0gCj4gIHBvcHVsYXIgY29kZWNzIHRoZSBzaXplIGlzIDE2eDE2IHNhbXBsZXMg KHBpeGVscykuCj4gKyAgIHBvcHVsYXIgY29kZWNzIHRoZSBzaXplIGlzIDE2eDE2IHNhbXBsZXMg KHBpeGVscykuIFRoZSBIRVZDIGNvZGVjIHVzZXMgYQo+ICsgICBzbGlnaHRseSBtb3JlIGZsZXhp YmxlIHByb2Nlc3NpbmcgdW5pdCBjYWxsZWQgY29kaW5nIHRyZWUgdW5pdCAoQ1RVKS4KPiAKPiAg T1VUUFVUCj4gICAgIHRoZSBzb3VyY2UgYnVmZmVyIHF1ZXVlOyBmb3IgZGVjb2RlcnMsIHRoZSBx dWV1ZSBvZiBidWZmZXJzIGNvbnRhaW5pbmcKCgoKCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51 eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5v cmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==