From patchwork Fri Jun 19 05:41:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Elder X-Patchwork-Id: 4087 Return-Path: Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 42A7C609E1 for ; Fri, 19 Jun 2020 07:41:51 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="r0cOPaQk"; dkim-atps=neutral Received: from jade.flets-east.jp (unknown [IPv6:2400:4051:61:600:e972:d773:e99a:4f79]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 76A78556; Fri, 19 Jun 2020 07:41:49 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1592545311; bh=vGb0v2Qe4a5GkACDESiVUZkH+2mUvCWPa0Kz/ayyStQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r0cOPaQkJtQAN1pvlixK7rIdoHvlvhAhuKf73sdzAraUE6ffsVpooBhetB62QTnG2 xWpt/LHSQcEhvK73OB4gVLxKCGmFXLEtVjTKa7az/rBxq1bLlCO4PkVCwKKyYeVVJH pF4PjtE7EwJVxmE2bT/78FrkUlkVvR2s4R+S8ulA= From: Paul Elder To: libcamera-devel@lists.libcamera.org Date: Fri, 19 Jun 2020 14:41:13 +0900 Message-Id: <20200619054123.19052-8-paul.elder@ideasonboard.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200619054123.19052-1-paul.elder@ideasonboard.com> References: <20200619054123.19052-1-paul.elder@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2 07/17] v4l2: v4l2_camera_proxy: Implement VIDIOC_ENUM_FRAMESIZES X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jun 2020 05:41:51 -0000 Implement VIDIOC_ENUM_FRAMESIZES in the V4L2 compatibility layer. Signed-off-by: Paul Elder Reviewed-by: Laurent Pinchart --- Changes in v2: - use V4L2CameraFile instead of fd - added todo for not many pipeline handlers reporting StreamFormats --- src/v4l2/v4l2_camera_proxy.cpp | 26 ++++++++++++++++++++++++++ src/v4l2/v4l2_camera_proxy.h | 1 + 2 files changed, 27 insertions(+) diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp index 3ac9068..c3032f5 100644 --- a/src/v4l2/v4l2_camera_proxy.cpp +++ b/src/v4l2/v4l2_camera_proxy.cpp @@ -241,6 +241,28 @@ int V4L2CameraProxy::vidioc_querycap(struct v4l2_capability *arg) return 0; } +int V4L2CameraProxy::vidioc_enum_framesizes(V4L2CameraFile *cf, struct v4l2_frmsizeenum *arg) +{ + LOG(V4L2Compat, Debug) << "Servicing vidioc_enum_framesizes fd = " << cf->efd(); + + PixelFormat argFormat = v4l2ToDrm(arg->pixel_format); + /* + * \todo This might need to be expanded as few pipeline handlers + * report StreamFormats. + */ + const std::vector &frameSizes = streamConfig_.formats().sizes(argFormat); + + if (arg->index >= frameSizes.size()) + return -EINVAL; + + arg->type = V4L2_FRMSIZE_TYPE_DISCRETE; + arg->discrete.width = frameSizes[arg->index].width; + arg->discrete.height = frameSizes[arg->index].height; + memset(arg->reserved, 0, sizeof(arg->reserved)); + + return 0; +} + int V4L2CameraProxy::vidioc_enum_fmt(V4L2CameraFile *cf, struct v4l2_fmtdesc *arg) { LOG(V4L2Compat, Debug) << "Servicing vidioc_enum_fmt fd = " << cf->efd(); @@ -624,6 +646,7 @@ int V4L2CameraProxy::vidioc_streamoff(V4L2CameraFile *cf, int *arg) std::set V4L2CameraProxy::supportedIoctls_ = { VIDIOC_QUERYCAP, + VIDIOC_ENUM_FRAMESIZES, VIDIOC_ENUM_FMT, VIDIOC_G_FMT, VIDIOC_S_FMT, @@ -658,6 +681,9 @@ int V4L2CameraProxy::ioctl(V4L2CameraFile *cf, unsigned long request, void *arg) case VIDIOC_QUERYCAP: ret = vidioc_querycap(static_cast(arg)); break; + case VIDIOC_ENUM_FRAMESIZES: + ret = vidioc_enum_framesizes(cf, static_cast(arg)); + break; case VIDIOC_ENUM_FMT: ret = vidioc_enum_fmt(cf, static_cast(arg)); break; diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h index 46573e7..363d366 100644 --- a/src/v4l2/v4l2_camera_proxy.h +++ b/src/v4l2/v4l2_camera_proxy.h @@ -47,6 +47,7 @@ private: int freeBuffers(); int vidioc_querycap(struct v4l2_capability *arg); + int vidioc_enum_framesizes(V4L2CameraFile *cf, struct v4l2_frmsizeenum *arg); int vidioc_enum_fmt(V4L2CameraFile *cf, struct v4l2_fmtdesc *arg); int vidioc_g_fmt(V4L2CameraFile *cf, struct v4l2_format *arg); int vidioc_s_fmt(V4L2CameraFile *cf, struct v4l2_format *arg);