diff options
| -rw-r--r-- | utils/ipu3/ipu3-pack.c | 101 | ||||
| -rw-r--r-- | utils/ipu3/meson.build | 1 |
2 files changed, 102 insertions, 0 deletions
diff --git a/utils/ipu3/ipu3-pack.c b/utils/ipu3/ipu3-pack.c new file mode 100644 index 00000000..decbfc6c --- /dev/null +++ b/utils/ipu3/ipu3-pack.c @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * ipu3-pack - Convert unpacked RAW10 Bayer data to the IPU3 packed Bayer formats + * + * Copyright 2022 Umang Jain <umang.jain@ideasonboard.com> + */ +#define _GNU_SOURCE + +#include <errno.h> +#include <fcntl.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <unistd.h> + +static void usage(const char *argv0) +{ + + printf("Usage: %s input-file output-file\n", basename(argv0)); + printf("Convert unpacked RAW10 Bayer data to the IPU3 packed Bayer formats\n"); + printf("If the output-file '-', output data will be written to standard output\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; + } + + if (strcmp(argv[2], "-") == 0) { + out_fd = STDOUT_FILENO; + } else { + 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)); + close(in_fd); + return 1; + } + } + + while (1) { + uint16_t in_data[25]; + uint8_t out_data[32]; + unsigned int i; + + ret = read(in_fd, in_data, sizeof(in_data)); + if (ret < 0) { + fprintf(stderr, "Failed to read input data: %s\n", + strerror(errno)); + goto done; + } + + if ((unsigned)ret < sizeof(in_data)) { + if (ret != 0) + fprintf(stderr, "%u bytes of stray data at end of input\n", + ret); + goto done; + } + + for (i = 0; i < 30; ++i) { + unsigned int index = (i * 8) / 10; + unsigned int msb_shift = (i * 8) % 10; + unsigned int lsb_shift = 10 - msb_shift; + + out_data[i] = ((in_data[index] >> msb_shift) & 0xff) + | ((in_data[index+1] << lsb_shift) & 0xff); + } + + out_data[30] = (in_data[24] >> 0) & 0xff; + out_data[31] = (in_data[24] >> 8) & 0x03; + + ret = write(out_fd, out_data, sizeof(out_data)); + if (ret < 0) { + fprintf(stderr, "Failed to write output data: %s\n", + strerror(errno)); + goto done; + } + } + +done: + close(in_fd); + if (out_fd != STDOUT_FILENO) + close(out_fd); + + return ret ? 1 : 0; +} diff --git a/utils/ipu3/meson.build b/utils/ipu3/meson.build index 88049f58..c92cc658 100644 --- a/utils/ipu3/meson.build +++ b/utils/ipu3/meson.build @@ -1,3 +1,4 @@ # SPDX-License-Identifier: CC0-1.0 +ipu3_pack = executable('ipu3-pack', 'ipu3-pack.c') ipu3_unpack = executable('ipu3-unpack', 'ipu3-unpack.c') |