Message ID | 20220713121534.115492-1-umang.jain@ideasonboard.com |
---|---|
State | Accepted |
Commit | 9eb8211160de2e0a879cc5e0b38f50137df989ce |
Headers | show |
Series |
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Related | show |
Quoting Umang Jain via libcamera-devel (2022-07-13 13:15:34) > 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> Seems useful to keep hold of to me. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> > --- > Changes in v3: > - Drop fflush() as stdout is per process not global > - Use sizeof () directly for bytes to read > - consistency of goto > --- > utils/ipu3/ipu3-pack.c | 101 +++++++++++++++++++++++++++++++++++++++++ > utils/ipu3/meson.build | 1 + > 2 files changed, 102 insertions(+) > create mode 100644 utils/ipu3/ipu3-pack.c > > 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') > -- > 2.31.1 >
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')