From a9b34ca3f27ed0b3c10effd3fb884936d9b02485 Mon Sep 17 00:00:00 2001 From: Přemysl Eric Janouch Date: Mon, 5 Jun 2023 17:52:58 +0200 Subject: Unite most info tools into just one binary Turn this into more of an fq alternative, when used with jq. Also don't say that TIFF files are Exif. --- tools/bmffinfo.c | 142 ------------------------------------------------------- 1 file changed, 142 deletions(-) delete mode 100644 tools/bmffinfo.c (limited to 'tools/bmffinfo.c') diff --git a/tools/bmffinfo.c b/tools/bmffinfo.c deleted file mode 100644 index f0c6ff1..0000000 --- a/tools/bmffinfo.c +++ /dev/null @@ -1,142 +0,0 @@ -// -// bmffinfo.c: acquire information about BMFF files in JSON format -// -// Copyright (c) 2021, Přemysl Eric Janouch -// -// Permission to use, copy, modify, and/or distribute this software for any -// purpose with or without fee is hereby granted. -// -// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY -// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION -// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN -// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -// - -#include "info.h" - -#include - -#include -#include -#include -#include - -// --- ISO/IEC base media file format ------------------------------------------ -// ISO/IEC 14496-12:2015(E), used to be publicly available, now there's only: -// https://mpeg.chiariglione.org/standards/mpeg-4/iso-base-media-file-format/text-isoiec-14496-12-5th-edition -// but people have managed to archive the final version as well: -// https://b.goeswhere.com/ISO_IEC_14496-12_2015.pdf -// -// ISO/IEC 23008-12:2017 Information technology - -// High efficiency coding and media delivery in heterogeneous environments - -// Part 12: Image File Format + Cor 1:2020 Technical Corrigendum 1 -// https://standards.iso.org/ittf/PubliclyAvailableStandards/ - -static jv -parse_bmff_box(jv o, const char *type, const uint8_t *data, size_t len) -{ - // TODO(p): Parse out "uuid"'s uint8_t[16] initial field, present as hex. - // TODO(p): Parse out "ftyp" contents: 14496-12:2015 4.3 - // TODO(p): Parse out other important boxes: 14496-12:2015 8+ - return add_to_subarray(o, "boxes", jv_string(type)); -} - -static jv -parse_bmff(jv o, const uint8_t *p, size_t len) -{ - // 4.2 Object Structure--this box need not be present, nor at the beginning - // TODO(p): What does `aligned(8)` mean? It's probably in bits. - if (len < 8 || memcmp(p + 4, "ftyp", 4)) - return add_error(o, "not BMFF at all or unsupported"); - - const uint8_t *end = p + len; - while (p < end) { - if (end - p < 8) { - o = add_warning(o, "box framing mismatch"); - break; - } - - char type[5] = ""; - memcpy(type, p + 4, 4); - - uint64_t box_size = u32be(p); - const uint8_t *data = p + 8; - if (box_size == 1) { - if (end - p < 16) { - o = add_warning(o, "unexpected EOF"); - break; - } - box_size = u64be(data); - data += 8; - } else if (!box_size) - box_size = end - p; - - if (box_size > (uint64_t) (end - p)) { - o = add_warning(o, "unexpected EOF"); - break; - } - - size_t data_len = box_size - (data - p); - o = parse_bmff_box(o, type, data, data_len); - p += box_size; - } - return o; -} - -// --- I/O --------------------------------------------------------------------- - -static jv -do_file(const char *filename, jv o) -{ - const char *err = NULL; - FILE *fp = fopen(filename, "rb"); - if (!fp) { - err = strerror(errno); - goto error; - } - - uint8_t *data = NULL, buf[256 << 10]; - size_t n, len = 0; - while ((n = fread(buf, sizeof *buf, sizeof buf / sizeof *buf, fp))) { - data = realloc(data, len + n); - memcpy(data + len, buf, n); - len += n; - } - if (ferror(fp)) { - err = strerror(errno); - goto error_read; - } - - o = parse_bmff(o, data, len); -error_read: - fclose(fp); - free(data); -error: - if (err) - o = add_error(o, err); - return o; -} - -int -main(int argc, char *argv[]) -{ - (void) parse_icc; - (void) parse_exif; - (void) parse_psir; - - // XXX: Can't use `xargs -P0`, there's a risk of non-atomic writes. - // Usage: find . -iname *.png -print0 | xargs -0 ./pnginfo - for (int i = 1; i < argc; i++) { - const char *filename = argv[i]; - - jv o = jv_object(); - o = jv_object_set(o, jv_string("filename"), jv_string(filename)); - o = do_file(filename, o); - jv_dumpf(o, stdout, 0 /* Might consider JV_PRINT_SORTED. */); - fputc('\n', stdout); - } - return 0; -} -- cgit v1.2.3-54-g00ecf