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Wed, 04 Mar 2026 05:28:42 -0800 (PST) X-Received: by 2002:a05:6a00:10c3:b0:81e:a228:f0c9 with SMTP id d2e1a72fcca58-82972bbd897mr1800978b3a.19.1772630921715; Wed, 04 Mar 2026 05:28:41 -0800 (PST) Received: from [10.204.101.56] ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82739d4d8dbsm22937109b3a.5.2026.03.04.05.28.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 Mar 2026 05:28:41 -0800 (PST) Message-ID: Date: Wed, 4 Mar 2026 18:58:35 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] media: venus: allow interlaced video streams To: Dmitry Baryshkov Cc: Piotr Oniszczuk , Dikshita Agarwal , Bryan O'Donoghue , Mauro Carvalho Chehab , Stanimir Varbanov , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260228-venus-mpeg2-v1-1-c13aa7cb6e93@oss.qualcomm.com> <4CA1838F-504D-4EEA-99F4-B3CC5EB10EDA@gmail.com> <885a74d4-c61e-414e-92a1-863faad931ce@oss.qualcomm.com> Content-Language: en-US From: Vikash Garodia In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: zIHDxfKcj8Kn6zYeGvZx3-gGw2-bnuaW X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzA0MDEwOCBTYWx0ZWRfX22AVputqcKIF 9uYrqtmDeZmBXJd6AoovWU7Bvn0zBM5yhUIXMRO81nJMdycEQ/q7IhpcuYt1VgyjJcs/3zWgRHq YljP7mGT4fOsZg8DEE2ubx6RMNAzkz9W3xz9i10GWUdb+Fdz2rcrqQAJt9LtUn1C81cqdjEU9b8 fiSPfds4f8PhlXhwy0JmfPNfiPlJvbUBEycXrxqmSXX+SZs9/Tyz8XHG2RcqH5Sw5/yyt2eDyB0 zpc4Aej1K6iObN6f1CEYUoRvRc6DvZqoqkcy/0ljy1B0Nu0XvYBIAPtBJCv/RA2zK95dVV/z975 YmFDT8yV/7t3kbB2p30IGkqGfG2FLmDWP1nFhUiDJRCvuuNE+xDsrXE113qkIJL2jZ5nqOPdHh1 nXwdTr+jiuMpJ2xNh5Pl5gyAWedajkHsnYlIAOV3PCWKVAK4Jh/T3jEeEP2y3QVvXDuSa4jNS0V YHXVUabRb36HrMtwHow== X-Authority-Analysis: v=2.4 cv=FpAIPmrq c=1 sm=1 tr=0 ts=69a8338b cx=c_pps a=mDZGXZTwRPZaeRUbqKGCBw==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=NEAV23lmAAAA:8 a=EUspDBNiAAAA:8 a=wFsewLjXzL0l_FF8NPcA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=zc0IvFSfCIW2DFIPzwfm:22 X-Proofpoint-GUID: zIHDxfKcj8Kn6zYeGvZx3-gGw2-bnuaW X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-04_06,2026-03-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 phishscore=0 malwarescore=0 clxscore=1015 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603040108 On 3/2/2026 4:58 PM, Dmitry Baryshkov wrote: > On Mon, Mar 02, 2026 at 01:01:18PM +0530, Vikash Garodia wrote: >> >> On 3/1/2026 4:05 AM, Dmitry Baryshkov wrote: >>> On Sat, Feb 28, 2026 at 09:54:20PM +0100, Piotr Oniszczuk wrote: >>>> >>>> >>>>> Wiadomość napisana przez Dmitry Baryshkov w dniu 28 lut 2026, o godz. 10:49: >>>>> >>>>> Venus driver errors out on the interlaced streams with the 'field isn't >>>>> supported' error message, which e.g. prevents decoding of the MPEG2 >>>>> video streams. Don't error out if the buffer is set to contain >>>>> interlaced data. >>>>> >>>>> Tested with the fluster enabled to handle MPEG2 through Gstreamer: >>>>> > > [...] > >>>>> >>>> Dmitry, >>>> I applied this on 6.19.4 mainline and give run with interlaced content (hd tv) on qcs6490 (radxa dragon sbc). >>>> Playback fails like this: https://gist.github.com/warpme/a368983678af0a76af85314808773076 >>>> pls see a bootom kernel output showing venus failure. >>>> my sw stack plays ok on e.g rpi4 stateful v4l2m2m so i think root cause isn't in my userspace.... >>>> pls let me know if anything extra is required to fix venus decoder issue. >>>> br >>> >>> >>> Interesting. So, most likely, H.264 decoder can't cope with it and we >>> need to allow non-NONE fields only for MPEG2. Let's see if Vikash will >>> have any other ideas. >>> >> >> Venus should already support h264 interlace. > > I guess, the question is: do we support interlaced H.264 streams? Yes, we do support interlace. > >> >> Piotr, do you see the same failure without this patch ? >> >> Regards, >> Vikash >