/* 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 */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include static void usage(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; } n> Jacopo Mondi's clone of libcameragit repository hosting on libcamera.org

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