From patchwork Mon Nov 19 17:53:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 5 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 E1AF960002 for ; Mon, 19 Nov 2018 18:52:54 +0100 (CET) Received: from avalon.telus (node-1w7jr9qt31lmhljbimrwzuuvx.ipv6.telus.net [IPv6:2001:569:7bf7:d700:e720:97a7:80b9:aadd]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 1F5B755D for ; Mon, 19 Nov 2018 18:52:53 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1542649974; bh=Y3SGZp1/THCQcYWdNt05qoTwz7hgVUwgl4g3E0qrO/w=; h=From:To:Subject:Date:From; b=UfgFgxEHyyY7etXTlIa15hrWdk2YMhvp8ydWxS6PEvxwjdku3FfC5pQ8mPkQEFQ0c sEwRzc9XdPFWbAclmqzdoib3QFtCygGdnJzJyF9mjIZlgMyLYWjYTwrEEqkhPWlc1E yom/TygqigD55u67+g4BgrnEO7whzSaKhFYHvleI= From: Laurent Pinchart To: libcamera-devel@lists.libcamera.org Date: Mon, 19 Nov 2018 19:53:06 +0200 Message-Id: <20181119175306.4729-1-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.18.1 Subject: [libcamera-devel] [PATCH] utils: ipu3: Add IPU3 raw capture unpack utility X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Nov 2018 17:52:55 -0000 The IPU3 captures Bayer data in a 25-pixels-in-32-bytes packed format, which no standard tool can process. Add a quick implementation of data unpacking to turn raw binary files into 16 bits per pixel unpacked Bayer data. Signed-off-by: Laurent Pinchart Reviewed-by: Jacopo Mondi --- meson.build | 3 +- utils/ipu3/ipu3-unpack.c | 93 ++++++++++++++++++++++++++++++++++++++++ utils/ipu3/meson.build | 1 + utils/meson.build | 1 + 4 files changed, 97 insertions(+), 1 deletion(-) create mode 100644 utils/ipu3/ipu3-unpack.c create mode 100644 utils/ipu3/meson.build create mode 100644 utils/meson.build diff --git a/meson.build b/meson.build index d1e186adb356..4b3d528c8932 100644 --- a/meson.build +++ b/meson.build @@ -1,4 +1,4 @@ -project('libcamera - supporting complex camera pipelines', 'cpp', +project('libcamera - supporting complex camera pipelines', 'c', 'cpp', version : '0.1', license : 'LGPL 2.1+') @@ -6,6 +6,7 @@ inc = include_directories('include') subdir('lib') subdir('test') +subdir('utils') pkg_mod = import('pkgconfig') pkg_mod.generate(libraries : libcamera, diff --git a/utils/ipu3/ipu3-unpack.c b/utils/ipu3/ipu3-unpack.c new file mode 100644 index 000000000000..2dce10385add --- /dev/null +++ b/utils/ipu3/ipu3-unpack.c @@ -0,0 +1,93 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * ipu3-unpack - Unpack IPU3 raw Bayer format to 16-bit Bayer + * + * Copyright 2018 Laurent Pinchart + */ +#define _GNU_SOURCE + +#include +#include +#include +#include +#include +#include +#include +#include + +static void usage(const char *argv0) +{ + printf("Usage: %s input-file output-file\n", basename(argv0)); + printf("Unpack the IPU3 raw Bayer format to 16-bit Bayer\n"); +} + +int main(int argc, char *argv[]) +{ + int in_fd; + int out_fd; + int ret; + + if (argc != 3) { + usage(argv[0]); + return 1; + } + + in_fd = open(argv[1], O_RDONLY); + if (in_fd == -1) { + fprintf(stderr, "Failed to open input file '%s': %s\n", + argv[1], strerror(errno)); + return 1; + } + + out_fd = open(argv[2], O_WRONLY | O_TRUNC | O_CREAT, 0644); + if (out_fd == -1) { + fprintf(stderr, "Failed to open output file '%s': %s\n", + argv[2], strerror(errno)); + return 1; + } + + while (1) { + uint8_t in_data[32]; + uint8_t out_data[50]; + unsigned int i; + + ret = read(in_fd, in_data, 32); + if (ret == -1) { + fprintf(stderr, "Failed to read input data: %s\n", + strerror(errno)); + goto done; + } + + if (ret < 32) { + if (ret != 0) + fprintf(stderr, "%u bytes of stray data at end of input\n", + ret); + break; + } + + for (i = 0; i < 25; ++i) { + unsigned int index = (i * 10) / 8; + unsigned int lsb_shift = (i * 10) % 8; + unsigned int msb_shift = 8 - lsb_shift; + uint16_t pixel; + + pixel = ((in_data[index+1] << msb_shift) & 0x3ff) + | ((in_data[index+0] >> lsb_shift) & 0x3ff); + out_data[i*2+0] = (pixel >> 0) & 0xff; + out_data[i*2+1] = (pixel >> 8) & 0xff; + } + + ret = write(out_fd, out_data, 50); + if (ret < -1) { + fprintf(stderr, "Failed to read input data: %s\n", + strerror(errno)); + goto done; + } + } + +done: + close(in_fd); + close(out_fd); + + return ret ? 1 : 0; +} diff --git a/utils/ipu3/meson.build b/utils/ipu3/meson.build new file mode 100644 index 000000000000..49c45856eea6 --- /dev/null +++ b/utils/ipu3/meson.build @@ -0,0 +1 @@ +ipu3_unpack = executable('ipu3-unpack', 'ipu3-unpack.c') diff --git a/utils/meson.build b/utils/meson.build new file mode 100644 index 000000000000..f434c79c0ae3 --- /dev/null +++ b/utils/meson.build @@ -0,0 +1 @@ +subdir('ipu3')