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Tue, 12 Aug 2025 23:11:14 +0200 (CEST) Message-ID: Subject: Re: [PATCH v2 0/7] media: rkvdec: Add HEVC backend From: Nicolas Dufresne To: Detlev Casanova , Jonas Karlman , Ezequiel Garcia , Mauro Carvalho Chehab Cc: Alex Bee , Sebastian Fricke , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Date: Tue, 12 Aug 2025 17:11:12 -0400 In-Reply-To: <3547812.44csPzL39Z@earth> References: <20250810212454.3237486-1-jonas@kwiboo.se> <50162371fd54fc976a84fcf57c9b69112a892c46.camel@collabora.com> <3547812.44csPzL39Z@earth> Autocrypt: addr=nicolas.dufresne@collabora.com; prefer-encrypt=mutual; keydata=mDMEaCN2ixYJKwYBBAHaRw8BAQdAM0EHepTful3JOIzcPv6ekHOenE1u0vDG1gdHFrChD /e0J05pY29sYXMgRHVmcmVzbmUgPG5pY29sYXNAbmR1ZnJlc25lLmNhPoiZBBMWCgBBAhsDBQsJCA cCAiICBhUKCQgLAgQWAgMBAh4HAheAFiEE7w1SgRXEw8IaBG8S2UGUUSlgcvQFAmgssvgFCQll93U ACgkQ2UGUUSlgcvRSeQEAjcvEl/A6R2y2nMufL4A8MiKQfPZqJPXlhhno2PZqqUcBAIR87Pv5+cZV ZTN26stch5wMyalcKgRNQ9IxtGvVelUCtDFOaWNvbGFzIER1ZnJlc25lIDxuaWNvbGFzLmR1ZnJlc 25lQGNvbGxhYm9yYS5jb20+iJkEExYKAEECGwMFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4AWIQ TvDVKBFcTDwhoEbxLZQZRRKWBy9AUCaCyyxgUJCWX3dQAKCRDZQZRRKWBy9ARJAP96pFmLffZsmBU pkyVBfFAf+zq6BJt769R0al3kHvUKdgD9G7KAHuioxD2v6SX7idpIazjzx8b8rfzwTWyOQWHCAAS0 LU5pY29sYXMgRHVmcmVzbmUgPG5pY29sYXMuZHVmcmVzbmVAZ21haWwuY29tPoiZBBMWCgBBFiEE7 w1SgRXEw8IaBG8S2UGUUSlgcvQFAmibrGYCGwMFCQll93UFCwkIBwICIgIGFQoJCAsCBBYCAwECHg cCF4AACgkQ2UGUUSlgcvRObgD/YnQjfi4+L8f4fI7p1pPMTwRTcaRdy6aqkKEmKsCArzQBAK8bRLv 9QjuqsE6oQZra/RB4widZPvphs78H0P6NmpIJ Organization: Collabora Canada Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-3mQpTUvxe3+s5ASJnZMy" User-Agent: Evolution 3.56.2 (3.56.2-1.fc42) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250812_141118_317152_3270D7ED X-CRM114-Status: GOOD ( 12.97 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --=-3mQpTUvxe3+s5ASJnZMy Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi, Le mardi 12 ao=C3=BBt 2025 =C3=A0 15:57 -0400, Detlev Casanova a =C3=A9crit= =C2=A0: > > Detlev reports 146/147 on newer hardware using GStreamer, failing > > TSUNEQBD_A_MAIN10_Technicolor_2 (9bit chroma) only. On Detlev side, it = will > > we important to check why 8K videos (PICSIZE*) passes with a single cor= e, > > perhaps we accidently use both cores ? >=20 > 1 core can do 8K. In theory, it can do up to close to 65535x65535... It i= s=20 > only a speed issue, so you can do 8K but you won't be able to get to 8K@6= 0=20 > with only one core on rk3588. now that makes me wonder if that means we can reach speed such as 240Hz 4K = by slaving the cores, of if that only works for 8K. If this is the case, perha= ps the decoder will need to be target performance aware to make the best scheduling. Nicolas --=-3mQpTUvxe3+s5ASJnZMy Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTvDVKBFcTDwhoEbxLZQZRRKWBy9AUCaJut8AAKCRDZQZRRKWBy 9Ih8AQDKyfk0G5x1w5UjIb06h+rwgbK7YR0Lu+0CgbaCFrUrCwEAtl6TV9GOaFhe Ubqzqi3x44DC0qxKWNjsJ9wdHUCpbAM= =ANNJ -----END PGP SIGNATURE----- --=-3mQpTUvxe3+s5ASJnZMy--