From patchwork Mon Jul 20 13:23:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanimir Varbanov X-Patchwork-Id: 11673937 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EBD42138A for ; Mon, 20 Jul 2020 13:24:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CBB9222C9C for ; Mon, 20 Jul 2020 13:24:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="PX9OEKkp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728163AbgGTNYH (ORCPT ); Mon, 20 Jul 2020 09:24:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726818AbgGTNYG (ORCPT ); Mon, 20 Jul 2020 09:24:06 -0400 Received: from mail-lj1-x243.google.com (mail-lj1-x243.google.com [IPv6:2a00:1450:4864:20::243]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49159C0619D4 for ; Mon, 20 Jul 2020 06:24:06 -0700 (PDT) Received: by mail-lj1-x243.google.com with SMTP id s9so20196252ljm.11 for ; Mon, 20 Jul 2020 06:24:06 -0700 (PDT) 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=MqUU4NwcPoS5ZN35RvVZCwFe9U5tn/4+nbmkAYnncfM=; b=PX9OEKkpI/jtSn3vID9ulI98KVskkSEehSSFoiChH9W5domW5LwSB3O8SlIYSY8G2W urdoQAOyCy4Fe5al/Ra+s6SR9G6P7B0NqKstWvfIUbilRDNaTb+lQlHtfwCb37av9a2Y 8BhB17PzbPlxgRLv7YZ7g9odrv5W3O08vy/vLNmRM4Jgv2pyDewwFL2zkF/7gxtvBo/P BANErjpf/Ah1Hk4QG0q2RjEblvaVCspAI4Do6eKzNllNQdyvL1Diw8dYk1G9PoAPrQM2 AxpIYtRde2mZ53hBPzygFN27BJWAqCpoh/e6V8eFLIU7a4BmilWhCdfMqVLSE+TCF2h3 fsCQ== 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=MqUU4NwcPoS5ZN35RvVZCwFe9U5tn/4+nbmkAYnncfM=; b=saoZuq7MWoa9X3vwlPaxjsL9FyCqYdty7Vqndw4Cg/5mDA31qgkslVXOS5IBbKPY4V 82DX+E+N53R7LuQfon2YYmi7CijLS273dv7qTlQU1lThCwgEGzlDyZOAJwEcYwANRQzC 8HZwo612zDn0h+FMM6f5MdbwYXGYJs0lmrmsveU05cmBPK9wmQ7OAquzillRhw4o28WB Iauh2oJVDEcA3QjAbVGqCIAJRC1h8yAOBaOEaGleEWk2WH9RST8Jk4r8+IGfIXSpoiMj CRLosQGfhN6+nUgKQ6HVPtLpKcoo1394Ll2ESZbPDtwNFQ9WXVatk8RD8ucXswRmzRGJ InLA== X-Gm-Message-State: AOAM531fhBrDXllw4Wl0StN+wFsmK0rrMfwUbx0x8MnpMp1loLF7AVB8 UGhIj6eutp5fBX6FsXhflIxCriDncX8= X-Google-Smtp-Source: ABdhPJzGz39fa756++vvpvlHNQabX53riDhr9Hmp/C3WTe9Rem+aeAp3HPtWDrVkHE/Pqyfv5LcG3g== X-Received: by 2002:a2e:7804:: with SMTP id t4mr10479933ljc.8.1595251444480; Mon, 20 Jul 2020 06:24:04 -0700 (PDT) Received: from localhost.localdomain ([195.24.90.54]) by smtp.gmail.com with ESMTPSA id h6sm867829lfc.84.2020.07.20.06.23.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jul 2020 06:24:03 -0700 (PDT) From: Stanimir Varbanov To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Mauro Carvalho Chehab , Hans Verkuil , Kyungmin Park , Kamil Debski , Jeongtae Park , Andrzej Hajda , Ezequiel Garcia , Philipp Zabel , Maheshwar Ajja , Stanimir Varbanov Subject: [PATCH 3/6] media: v4l2-ctrl: Add frame-skip std encoder control Date: Mon, 20 Jul 2020 16:23:10 +0300 Message-Id: <20200720132313.4810-4-stanimir.varbanov@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200720132313.4810-1-stanimir.varbanov@linaro.org> References: <20200720132313.4810-1-stanimir.varbanov@linaro.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Adds encoders standard v4l2 control for frame-skip. The control is a copy of a custom encoder control so that other v4l2 encoder drivers can use it. Signed-off-by: Stanimir Varbanov Reviewed-by: Hans Verkuil --- .../media/v4l/ext-ctrls-codec.rst | 33 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-ctrls.c | 10 ++++++ include/uapi/linux/v4l2-controls.h | 6 ++++ 3 files changed, 49 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index b9d3f7ae6486..3e6b5d61500b 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -602,6 +602,39 @@ enum v4l2_mpeg_video_bitrate_mode - Encoder will decide the appropriate quantization parameter and bitrate to produce requested frame quality. + +``V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE (enum)`` + +enum v4l2_mpeg_video_frame_skip_mode - + Indicates in what conditions the encoder should skip frames. If + encoding a frame would cause the encoded stream to be larger then a + chosen data limit then the frame will be skipped. Possible values + are: + + +.. tabularcolumns:: |p{9.2cm}|p{8.3cm}| + +.. raw:: latex + + \small + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + * - ``V4L2_MPEG_FRAME_SKIP_MODE_DISABLED`` + - Frame skip mode is disabled. + * - ``V4L2_MPEG_FRAME_SKIP_MODE_LEVEL_LIMIT`` + - Frame skip mode enabled and buffer limit is set by the chosen + level and is defined by the standard. + * - ``V4L2_MPEG_FRAME_SKIP_MODE_BUF_LIMIT`` + - Frame skip mode enabled and buffer limit is set by the VBV + (MPEG1/2/4) or CPB (H264) buffer size control. + +.. raw:: latex + + \normalsize + ``V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION (integer)`` For every captured frame, skip this many subsequent frames (default 0). diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index bc00d02e411f..eb403858d325 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -591,6 +591,12 @@ const char * const *v4l2_ctrl_get_menu(u32 id) "External", NULL, }; + static const char * const mpeg_video_frame_skip[] = { + "Disabled", + "Level Limit", + "VBV/CPB Limit", + NULL, + }; switch (id) { case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: @@ -652,6 +658,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id) return flash_strobe_source; case V4L2_CID_MPEG_VIDEO_HEADER_MODE: return header_mode; + case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE: + return mpeg_video_frame_skip; case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: return multi_slice; case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: @@ -846,6 +854,7 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE: return "H264 MB Level Rate Control"; case V4L2_CID_MPEG_VIDEO_HEADER_MODE: return "Sequence Header Mode"; case V4L2_CID_MPEG_VIDEO_MAX_REF_PIC: return "Max Number of Reference Pics"; + case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE: return "Frame Skip Mode"; case V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP: return "H263 I-Frame QP Value"; case V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP: return "H263 P-Frame QP Value"; case V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP: return "H263 B-Frame QP Value"; @@ -1267,6 +1276,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_FLASH_LED_MODE: case V4L2_CID_FLASH_STROBE_SOURCE: case V4L2_CID_MPEG_VIDEO_HEADER_MODE: + case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE: case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: case V4L2_CID_MPEG_VIDEO_H264_LEVEL: diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 0f7e4388dcce..053827cda8e6 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -744,6 +744,12 @@ enum v4l2_cid_mpeg_video_hevc_size_of_length_field { #define V4L2_CID_MPEG_VIDEO_REF_NUMBER_FOR_PFRAMES (V4L2_CID_MPEG_BASE + 643) #define V4L2_CID_MPEG_VIDEO_PREPEND_SPSPPS_TO_IDR (V4L2_CID_MPEG_BASE + 644) #define V4L2_CID_MPEG_VIDEO_CONSTANT_QUALITY (V4L2_CID_MPEG_BASE + 645) +#define V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE (V4L2_CID_MPEG_BASE + 646) +enum v4l2_mpeg_video_frame_skip_mode { + V4L2_MPEG_VIDEO_FRAME_SKIP_MODE_DISABLED = 0, + V4L2_MPEG_VIDEO_FRAME_SKIP_MODE_LEVEL_LIMIT = 1, + V4L2_MPEG_VIDEO_FRAME_SKIP_MODE_BUF_LIMIT = 2, +}; /* MPEG-class control IDs specific to the CX2341x driver as defined by V4L2 */ #define V4L2_CID_MPEG_CX2341X_BASE (V4L2_CTRL_CLASS_MPEG | 0x1000)