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authorPřemysl Eric Janouch <p@janouch.name>2023-06-05 17:52:58 +0200
committerPřemysl Eric Janouch <p@janouch.name>2023-06-05 18:11:37 +0200
commita9b34ca3f27ed0b3c10effd3fb884936d9b02485 (patch)
tree43d0eb0996573481cd88558b9d4e20008aa0413f /tools/bmffinfo.c
parentbd92ad73ec995da9e2b2ca57faf011290f329d53 (diff)
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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.
Diffstat (limited to 'tools/bmffinfo.c')
-rw-r--r--tools/bmffinfo.c142
1 files changed, 0 insertions, 142 deletions
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 <p@janouch.name>
-//
-// 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 <jv.h>
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-// --- 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;
-}