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authorUmang Jain <umang.jain@ideasonboard.com>2022-07-13 17:45:34 +0530
committerUmang Jain <umang.jain@ideasonboard.com>2022-07-19 21:43:35 +0530
commit9eb8211160de2e0a879cc5e0b38f50137df989ce (patch)
tree655d52f1265c3d0e64927525b07e8c17fffe988b /utils/ipu3/ipu3-pack.c
parentf995ff25a3326db90513d1fa936815653f7cade0 (diff)
utils: ipu3-pack: Provide a 10-bit bayer packing utility
Provide a 10-bit bayer packing utility for the unpacked data produced by ipu3-unpack. Usage: ipu3-unpack input-file output-file The output-file can be "-" to pack the data to stdout. The output file generated by ipu3-pack can be directly fed to IMGU for streaming. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'utils/ipu3/ipu3-pack.c')
-rw-r--r--utils/ipu3/ipu3-pack.c101
1 files changed, 101 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;
+}