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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B95A5C2D0C0 for ; Mon, 23 Dec 2019 11:34:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 91B0B20882 for ; Mon, 23 Dec 2019 11:34:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="gAq2cysK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726928AbfLWLeg (ORCPT ); Mon, 23 Dec 2019 06:34:36 -0500 Received: from mail-lj1-f194.google.com ([209.85.208.194]:35757 "EHLO mail-lj1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726866AbfLWLdt (ORCPT ); Mon, 23 Dec 2019 06:33:49 -0500 Received: by mail-lj1-f194.google.com with SMTP id j1so10046631lja.2 for ; Mon, 23 Dec 2019 03:33:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=fdnv5G54kjVyBGm0/gl9gu7nvtpvFPt8yg5pxAgrcmE=; b=gAq2cysKYZZfj4Q8zAemwVqnt5m0oC3iqy37p1iR40SVb+N7zvSbX9h4shinQdiimL tcxtDJadBJ572tOx6WeL2xYwiCMx8viFF8fASfQGgBD2DvK+oAEv/Tm4fFeM/0uNl9In yXxqZkCfQErbq/BfvBOTW1KvoLHsf4p5MhC3QbBHuq5aUHykWh3sdJPDku6WotC5We2G 6WoQzNoV2XMM5l6YLzdDQYY0EuQZIyH6J5K6J0Y0dMdUFwrbyAWlfkoW/9+I6O76NlWP cPT5B7ENvofMc1Wl6O1nUmL3VVrPqG6XRnkBejagryZ3Z/H/VpAVEJ+BvOPOObB7rSuK oQbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=fdnv5G54kjVyBGm0/gl9gu7nvtpvFPt8yg5pxAgrcmE=; b=s/exYeBcylDjtTEyxbjDDtNyYOGVaJXWea7Um7MxV27trKrbYjWu0iRCymrynQ3cXa Wd/PJThPiRpRUTzU6fBnai7e69b5x2a2O4xxdDBqlAO0Gym7eWrOX5BxMIIsVdf51Jtg 4joZc6t/nARRNykNBfM/5oKDpVURR5TYOrCFG78IzBmhcZ7MaPvhsg7rNYiB3GK5neqj 41OA5TYYRxhkbCqWe3lNKBd0mZ3nrKNKsUg6NC+4ifbUHliZjUnkngC+FsUhOfPJgOQx +y6VrN/bVNSgayLTKsoCwk6+0j4XvXApHZyiNksRstgj1itxwGp7q3clmHw8bxV7t3qQ dSfA== X-Gm-Message-State: APjAAAXfid68XSs062gVrRxmFqC718OlSlpoCgom3TogLwYBlwqkQECu jt41Ze1ISM+hOYzSBwEaqiSeDA== X-Google-Smtp-Source: APXvYqwOZpdpPPDJHLpxGOc/ElhqDZAYStQCW2QgMpCSboNbWVcXL8In/iZ+hCKvUAladS2LuxozXA== X-Received: by 2002:a2e:6c13:: with SMTP id h19mr8124037ljc.221.1577100827132; Mon, 23 Dec 2019 03:33:47 -0800 (PST) Received: from localhost.localdomain ([37.157.136.193]) by smtp.gmail.com with ESMTPSA id g15sm8381500ljk.8.2019.12.23.03.33.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Dec 2019 03:33:46 -0800 (PST) From: Stanimir Varbanov To: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org Cc: Vikash Garodia , dikshita@codeaurora.org, Stanimir Varbanov Subject: [PATCH v3 04/12] v4l: Add source event change for bit-depth Date: Mon, 23 Dec 2019 13:33:03 +0200 Message-Id: <20191223113311.20602-5-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191223113311.20602-1-stanimir.varbanov@linaro.org> References: <20191223113311.20602-1-stanimir.varbanov@linaro.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This event indicate that the source color bit-depth is changed during run-time. The client must get the new format and re-allocate buffers for it. This can usually happens with video decoder (encoders) when the bit-stream color bit-depth is changed from 8 to 10bits or vice versa. Acked-by: Sakari Ailus Signed-off-by: Stanimir Varbanov --- Documentation/media/uapi/v4l/vidioc-dqevent.rst | 8 +++++++- Documentation/media/videodev2.h.rst.exceptions | 1 + include/uapi/linux/videodev2.h | 1 + 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/Documentation/media/uapi/v4l/vidioc-dqevent.rst b/Documentation/media/uapi/v4l/vidioc-dqevent.rst index 42659a3d1705..fad853d440cf 100644 --- a/Documentation/media/uapi/v4l/vidioc-dqevent.rst +++ b/Documentation/media/uapi/v4l/vidioc-dqevent.rst @@ -402,7 +402,13 @@ call. that many Video Capture devices are not able to recover from a temporary loss of signal and so restarting streaming I/O is required in order for the hardware to synchronize to the video signal. - + * - ``V4L2_EVENT_SRC_CH_COLOR_DEPTH`` + - 0x0002 + - This event gets triggered when color bit-depth change is detected + from a video decoder. Applications will have to query the new pixel + format and re-negotiate the queue. In most cases the streaming must be + stopped and restarted (:ref:`VIDIOC_STREAMOFF ` + followed by :ref:`VIDIOC_STREAMON `). Return Value ============ diff --git a/Documentation/media/videodev2.h.rst.exceptions b/Documentation/media/videodev2.h.rst.exceptions index cb6ccf91776e..209709114378 100644 --- a/Documentation/media/videodev2.h.rst.exceptions +++ b/Documentation/media/videodev2.h.rst.exceptions @@ -490,6 +490,7 @@ replace define V4L2_EVENT_CTRL_CH_FLAGS ctrl-changes-flags replace define V4L2_EVENT_CTRL_CH_RANGE ctrl-changes-flags replace define V4L2_EVENT_SRC_CH_RESOLUTION src-changes-flags +replace define V4L2_EVENT_SRC_CH_COLOR_DEPTH src-changes-flags replace define V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ :c:type:`v4l2_event_motion_det` diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 04481c717fee..2a5138ac6d25 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -2307,6 +2307,7 @@ struct v4l2_event_frame_sync { }; #define V4L2_EVENT_SRC_CH_RESOLUTION (1 << 0) +#define V4L2_EVENT_SRC_CH_COLOR_DEPTH (1 << 1) struct v4l2_event_src_change { __u32 changes; -- 2.17.1