Adding upstream version 1.4.3+ds.upstream/1.4.3+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 636 insertions, 0 deletions

diff --git a/src/test_libs_common/metadata_utils.c b/src/test_libs_common/metadata_utils.c
new file mode 100644
index 0000000..929ca63
--- /dev/null
+++ b/src/test_libs_common/metadata_utils.c
@@ -0,0 +1,636 @@
+/* test_libFLAC - Unit tester for libFLAC
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2023  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * These are not tests, just utility functions used by the metadata tests
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "FLAC/metadata.h"
+#include "test_libs_common/metadata_utils.h"
+#include "share/compat.h"
+#include <stdio.h>
+#include <stdlib.h> /* for malloc() */
+#include <string.h> /* for memcmp() */
+
+FLAC__bool mutils__compare_block_data_streaminfo(const FLAC__StreamMetadata_StreamInfo *block, const FLAC__StreamMetadata_StreamInfo *blockcopy)
+{
+	if(blockcopy->min_blocksize != block->min_blocksize) {
+		printf("FAILED, min_blocksize mismatch, expected %u, got %u\n", block->min_blocksize, blockcopy->min_blocksize);
+		return false;
+	}
+	if(blockcopy->max_blocksize != block->max_blocksize) {
+		printf("FAILED, max_blocksize mismatch, expected %u, got %u\n", block->max_blocksize, blockcopy->max_blocksize);
+		return false;
+	}
+	if(blockcopy->min_framesize != block->min_framesize) {
+		printf("FAILED, min_framesize mismatch, expected %u, got %u\n", block->min_framesize, blockcopy->min_framesize);
+		return false;
+	}
+	if(blockcopy->max_framesize != block->max_framesize) {
+		printf("FAILED, max_framesize mismatch, expected %u, got %u\n", block->max_framesize, blockcopy->max_framesize);
+		return false;
+	}
+	if(blockcopy->sample_rate != block->sample_rate) {
+		printf("FAILED, sample_rate mismatch, expected %u, got %u\n", block->sample_rate, blockcopy->sample_rate);
+		return false;
+	}
+	if(blockcopy->channels != block->channels) {
+		printf("FAILED, channels mismatch, expected %u, got %u\n", block->channels, blockcopy->channels);
+		return false;
+	}
+	if(blockcopy->bits_per_sample != block->bits_per_sample) {
+		printf("FAILED, bits_per_sample mismatch, expected %u, got %u\n", block->bits_per_sample, blockcopy->bits_per_sample);
+		return false;
+	}
+	if(blockcopy->total_samples != block->total_samples) {
+		printf("FAILED, total_samples mismatch, expected %" PRIu64 ", got %" PRIu64 "\n", block->total_samples, blockcopy->total_samples);
+		return false;
+	}
+	if(0 != memcmp(blockcopy->md5sum, block->md5sum, sizeof(block->md5sum))) {
+		printf("FAILED, md5sum mismatch, expected %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X, got %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X\n",
+			(uint32_t)block->md5sum[0],
+			(uint32_t)block->md5sum[1],
+			(uint32_t)block->md5sum[2],
+			(uint32_t)block->md5sum[3],
+			(uint32_t)block->md5sum[4],
+			(uint32_t)block->md5sum[5],
+			(uint32_t)block->md5sum[6],
+			(uint32_t)block->md5sum[7],
+			(uint32_t)block->md5sum[8],
+			(uint32_t)block->md5sum[9],
+			(uint32_t)block->md5sum[10],
+			(uint32_t)block->md5sum[11],
+			(uint32_t)block->md5sum[12],
+			(uint32_t)block->md5sum[13],
+			(uint32_t)block->md5sum[14],
+			(uint32_t)block->md5sum[15],
+			(uint32_t)blockcopy->md5sum[0],
+			(uint32_t)blockcopy->md5sum[1],
+			(uint32_t)blockcopy->md5sum[2],
+			(uint32_t)blockcopy->md5sum[3],
+			(uint32_t)blockcopy->md5sum[4],
+			(uint32_t)blockcopy->md5sum[5],
+			(uint32_t)blockcopy->md5sum[6],
+			(uint32_t)blockcopy->md5sum[7],
+			(uint32_t)blockcopy->md5sum[8],
+			(uint32_t)blockcopy->md5sum[9],
+			(uint32_t)blockcopy->md5sum[10],
+			(uint32_t)blockcopy->md5sum[11],
+			(uint32_t)blockcopy->md5sum[12],
+			(uint32_t)blockcopy->md5sum[13],
+			(uint32_t)blockcopy->md5sum[14],
+			(uint32_t)blockcopy->md5sum[15]
+		);
+		return false;
+	}
+	return true;
+}
+
+FLAC__bool mutils__compare_block_data_padding(const FLAC__StreamMetadata_Padding *block, const FLAC__StreamMetadata_Padding *blockcopy, uint32_t block_length)
+{
+	/* we don't compare the padding guts */
+	(void)block, (void)blockcopy, (void)block_length;
+	return true;
+}
+
+FLAC__bool mutils__compare_block_data_application(const FLAC__StreamMetadata_Application *block, const FLAC__StreamMetadata_Application *blockcopy, uint32_t block_length)
+{
+	if(block_length < sizeof(block->id)) {
+		printf("FAILED, bad block length = %u\n", block_length);
+		return false;
+	}
+	if(0 != memcmp(blockcopy->id, block->id, sizeof(block->id))) {
+		printf("FAILED, id mismatch, expected %02X%02X%02X%02X, got %02X%02X%02X%02X\n",
+			(uint32_t)block->id[0],
+			(uint32_t)block->id[1],
+			(uint32_t)block->id[2],
+			(uint32_t)block->id[3],
+			(uint32_t)blockcopy->id[0],
+			(uint32_t)blockcopy->id[1],
+			(uint32_t)blockcopy->id[2],
+			(uint32_t)blockcopy->id[3]
+		);
+		return false;
+	}
+	if(0 == block->data || 0 == blockcopy->data) {
+		if(block->data != blockcopy->data) {
+			printf("FAILED, data mismatch (%s's data pointer is null)\n", 0==block->data?"original":"copy");
+			return false;
+		}
+		else if(block_length - sizeof(block->id) > 0) {
+			printf("FAILED, data pointer is null but block length is not 0\n");
+			return false;
+		}
+	}
+	else {
+		if(block_length - sizeof(block->id) == 0) {
+			printf("FAILED, data pointer is not null but block length is 0\n");
+			return false;
+		}
+		else if(0 != memcmp(blockcopy->data, block->data, block_length - sizeof(block->id))) {
+			printf("FAILED, data mismatch\n");
+			return false;
+		}
+	}
+	return true;
+}
+
+FLAC__bool mutils__compare_block_data_seektable(const FLAC__StreamMetadata_SeekTable *block, const FLAC__StreamMetadata_SeekTable *blockcopy)
+{
+	uint32_t i;
+	if(blockcopy->num_points != block->num_points) {
+		printf("FAILED, num_points mismatch, expected %u, got %u\n", block->num_points, blockcopy->num_points);
+		return false;
+	}
+	for(i = 0; i < block->num_points; i++) {
+		if(blockcopy->points[i].sample_number != block->points[i].sample_number) {
+			printf("FAILED, points[%u].sample_number mismatch, expected %" PRIu64 ", got %" PRIu64 "\n", i, block->points[i].sample_number, blockcopy->points[i].sample_number);
+			return false;
+		}
+		if(blockcopy->points[i].stream_offset != block->points[i].stream_offset) {
+			printf("FAILED, points[%u].stream_offset mismatch, expected %" PRIu64 ", got %" PRIu64 "\n", i, block->points[i].stream_offset, blockcopy->points[i].stream_offset);
+			return false;
+		}
+		if(blockcopy->points[i].frame_samples != block->points[i].frame_samples) {
+			printf("FAILED, points[%u].frame_samples mismatch, expected %u, got %u\n", i, block->points[i].frame_samples, blockcopy->points[i].frame_samples);
+			return false;
+		}
+	}
+	return true;
+}
+
+FLAC__bool mutils__compare_block_data_vorbiscomment(const FLAC__StreamMetadata_VorbisComment *block, const FLAC__StreamMetadata_VorbisComment *blockcopy)
+{
+	uint32_t i;
+	if(blockcopy->vendor_string.length != block->vendor_string.length) {
+		printf("FAILED, vendor_string.length mismatch, expected %u, got %u\n", block->vendor_string.length, blockcopy->vendor_string.length);
+		return false;
+	}
+	if(0 == block->vendor_string.entry || 0 == blockcopy->vendor_string.entry) {
+		if(block->vendor_string.entry != blockcopy->vendor_string.entry) {
+			printf("FAILED, vendor_string.entry mismatch\n");
+			return false;
+		}
+	}
+	else if(0 != memcmp(blockcopy->vendor_string.entry, block->vendor_string.entry, block->vendor_string.length)) {
+		printf("FAILED, vendor_string.entry mismatch\n");
+		return false;
+	}
+	if(blockcopy->num_comments != block->num_comments) {
+		printf("FAILED, num_comments mismatch, expected %u, got %u\n", block->num_comments, blockcopy->num_comments);
+		return false;
+	}
+	for(i = 0; i < block->num_comments; i++) {
+		if(blockcopy->comments[i].length != block->comments[i].length) {
+			printf("FAILED, comments[%u].length mismatch, expected %u, got %u\n", i, block->comments[i].length, blockcopy->comments[i].length);
+			return false;
+		}
+		if(0 == block->comments[i].entry || 0 == blockcopy->comments[i].entry) {
+			if(block->comments[i].entry != blockcopy->comments[i].entry) {
+				printf("FAILED, comments[%u].entry mismatch\n", i);
+				return false;
+			}
+		}
+		else {
+			if(0 != memcmp(blockcopy->comments[i].entry, block->comments[i].entry, block->comments[i].length)) {
+				printf("FAILED, comments[%u].entry mismatch\n", i);
+				return false;
+			}
+		}
+	}
+	return true;
+}
+
+FLAC__bool mutils__compare_block_data_cuesheet(const FLAC__StreamMetadata_CueSheet *block, const FLAC__StreamMetadata_CueSheet *blockcopy)
+{
+	uint32_t i, j;
+
+	if(0 != strcmp(blockcopy->media_catalog_number, block->media_catalog_number)) {
+		printf("FAILED, media_catalog_number mismatch, expected %s, got %s\n", block->media_catalog_number, blockcopy->media_catalog_number);
+		return false;
+	}
+	if(blockcopy->lead_in != block->lead_in) {
+		printf("FAILED, lead_in mismatch, expected %" PRIu64 ", got %" PRIu64 "\n", block->lead_in, blockcopy->lead_in);
+		return false;
+	}
+	if(blockcopy->is_cd != block->is_cd) {
+		printf("FAILED, is_cd mismatch, expected %u, got %u\n", (uint32_t)block->is_cd, (uint32_t)blockcopy->is_cd);
+		return false;
+	}
+	if(blockcopy->num_tracks != block->num_tracks) {
+		printf("FAILED, num_tracks mismatch, expected %u, got %u\n", block->num_tracks, blockcopy->num_tracks);
+		return false;
+	}
+	for(i = 0; i < block->num_tracks; i++) {
+		if(blockcopy->tracks[i].offset != block->tracks[i].offset) {
+			printf("FAILED, tracks[%u].offset mismatch, expected %" PRIu64 ", got %" PRIu64 "\n", i, block->tracks[i].offset, blockcopy->tracks[i].offset);
+			return false;
+		}
+		if(blockcopy->tracks[i].number != block->tracks[i].number) {
+			printf("FAILED, tracks[%u].number mismatch, expected %u, got %u\n", i, (uint32_t)block->tracks[i].number, (uint32_t)blockcopy->tracks[i].number);
+			return false;
+		}
+		if(blockcopy->tracks[i].num_indices != block->tracks[i].num_indices) {
+			printf("FAILED, tracks[%u].num_indices mismatch, expected %u, got %u\n", i, (uint32_t)block->tracks[i].num_indices, (uint32_t)blockcopy->tracks[i].num_indices);
+			return false;
+		}
+		/* num_indices == 0 means lead-out track so only the track offset and number are valid */
+		if(block->tracks[i].num_indices > 0) {
+			if(0 != strcmp(blockcopy->tracks[i].isrc, block->tracks[i].isrc)) {
+				printf("FAILED, tracks[%u].isrc mismatch, expected %s, got %s\n", i, block->tracks[i].isrc, blockcopy->tracks[i].isrc);
+				return false;
+			}
+			if(blockcopy->tracks[i].type != block->tracks[i].type) {
+				printf("FAILED, tracks[%u].type mismatch, expected %u, got %u\n", i, (uint32_t)block->tracks[i].type, (uint32_t)blockcopy->tracks[i].type);
+				return false;
+			}
+			if(blockcopy->tracks[i].pre_emphasis != block->tracks[i].pre_emphasis) {
+				printf("FAILED, tracks[%u].pre_emphasis mismatch, expected %u, got %u\n", i, (uint32_t)block->tracks[i].pre_emphasis, (uint32_t)blockcopy->tracks[i].pre_emphasis);
+				return false;
+			}
+			if(0 == block->tracks[i].indices || 0 == blockcopy->tracks[i].indices) {
+				if(block->tracks[i].indices != blockcopy->tracks[i].indices) {
+					printf("FAILED, tracks[%u].indices mismatch\n", i);
+					return false;
+				}
+			}
+			else {
+				for(j = 0; j < block->tracks[i].num_indices; j++) {
+					if(blockcopy->tracks[i].indices[j].offset != block->tracks[i].indices[j].offset) {
+						printf("FAILED, tracks[%u].indices[%u].offset mismatch, expected %" PRIu64 ", got %" PRIu64 "\n", i, j, block->tracks[i].indices[j].offset, blockcopy->tracks[i].indices[j].offset);
+						return false;
+					}
+					if(blockcopy->tracks[i].indices[j].number != block->tracks[i].indices[j].number) {
+						printf("FAILED, tracks[%u].indices[%u].number mismatch, expected %u, got %u\n", i, j, (uint32_t)block->tracks[i].indices[j].number, (uint32_t)blockcopy->tracks[i].indices[j].number);
+						return false;
+					}
+				}
+			}
+		}
+	}
+	return true;
+}
+
+FLAC__bool mutils__compare_block_data_picture(const FLAC__StreamMetadata_Picture *block, const FLAC__StreamMetadata_Picture *blockcopy)
+{
+	size_t len, lencopy;
+	if(blockcopy->type != block->type) {
+		printf("FAILED, type mismatch, expected %u, got %u\n", (uint32_t)block->type, (uint32_t)blockcopy->type);
+		return false;
+	}
+	len = strlen(block->mime_type);
+	lencopy = strlen(blockcopy->mime_type);
+	if(lencopy != len) {
+		printf("FAILED, mime_type length mismatch, expected %u, got %u\n", (uint32_t)len, (uint32_t)lencopy);
+		return false;
+	}
+	if(strcmp(blockcopy->mime_type, block->mime_type)) {
+		printf("FAILED, mime_type mismatch, expected %s, got %s\n", block->mime_type, blockcopy->mime_type);
+		return false;
+	}
+	len = strlen((const char *)block->description);
+	lencopy = strlen((const char *)blockcopy->description);
+	if(lencopy != len) {
+		printf("FAILED, description length mismatch, expected %u, got %u\n", (uint32_t)len, (uint32_t)lencopy);
+		return false;
+	}
+	if(strcmp((const char *)blockcopy->description, (const char *)block->description)) {
+		printf("FAILED, description mismatch, expected %s, got %s\n", block->description, blockcopy->description);
+		return false;
+	}
+	if(blockcopy->width != block->width) {
+		printf("FAILED, width mismatch, expected %u, got %u\n", block->width, blockcopy->width);
+		return false;
+	}
+	if(blockcopy->height != block->height) {
+		printf("FAILED, height mismatch, expected %u, got %u\n", block->height, blockcopy->height);
+		return false;
+	}
+	if(blockcopy->depth != block->depth) {
+		printf("FAILED, depth mismatch, expected %u, got %u\n", block->depth, blockcopy->depth);
+		return false;
+	}
+	if(blockcopy->colors != block->colors) {
+		printf("FAILED, colors mismatch, expected %u, got %u\n", block->colors, blockcopy->colors);
+		return false;
+	}
+	if(blockcopy->data_length != block->data_length) {
+		printf("FAILED, data_length mismatch, expected %u, got %u\n", block->data_length, blockcopy->data_length);
+		return false;
+	}
+	if(block->data_length > 0 && memcmp(blockcopy->data, block->data, block->data_length)) {
+		printf("FAILED, data mismatch\n");
+		return false;
+	}
+	return true;
+}
+
+FLAC__bool mutils__compare_block_data_unknown(const FLAC__StreamMetadata_Unknown *block, const FLAC__StreamMetadata_Unknown *blockcopy, uint32_t block_length)
+{
+	if(0 == block->data || 0 == blockcopy->data) {
+		if(block->data != blockcopy->data) {
+			printf("FAILED, data mismatch (%s's data pointer is null)\n", 0==block->data?"original":"copy");
+			return false;
+		}
+		else if(block_length > 0) {
+			printf("FAILED, data pointer is null but block length is not 0\n");
+			return false;
+		}
+	}
+	else {
+		if(block_length == 0) {
+			printf("FAILED, data pointer is not null but block length is 0\n");
+			return false;
+		}
+		else if(0 != memcmp(blockcopy->data, block->data, block_length)) {
+			printf("FAILED, data mismatch\n");
+			return false;
+		}
+	}
+	return true;
+}
+
+FLAC__bool mutils__compare_block(const FLAC__StreamMetadata *block, const FLAC__StreamMetadata *blockcopy)
+{
+	if(blockcopy->type != block->type) {
+		printf("FAILED, type mismatch, expected %s, got %s\n", FLAC__MetadataTypeString[block->type], FLAC__MetadataTypeString[blockcopy->type]);
+		return false;
+	}
+	if(blockcopy->is_last != block->is_last) {
+		printf("FAILED, is_last mismatch, expected %u, got %u\n", (uint32_t)block->is_last, (uint32_t)blockcopy->is_last);
+		return false;
+	}
+	if(blockcopy->length != block->length) {
+		printf("FAILED, length mismatch, expected %u, got %u\n", block->length, blockcopy->length);
+		return false;
+	}
+	switch(block->type) {
+		case FLAC__METADATA_TYPE_STREAMINFO:
+			return mutils__compare_block_data_streaminfo(&block->data.stream_info, &blockcopy->data.stream_info);
+		case FLAC__METADATA_TYPE_PADDING:
+			return mutils__compare_block_data_padding(&block->data.padding, &blockcopy->data.padding, block->length);
+		case FLAC__METADATA_TYPE_APPLICATION:
+			return mutils__compare_block_data_application(&block->data.application, &blockcopy->data.application, block->length);
+		case FLAC__METADATA_TYPE_SEEKTABLE:
+			return mutils__compare_block_data_seektable(&block->data.seek_table, &blockcopy->data.seek_table);
+		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+			return mutils__compare_block_data_vorbiscomment(&block->data.vorbis_comment, &blockcopy->data.vorbis_comment);
+		case FLAC__METADATA_TYPE_CUESHEET:
+			return mutils__compare_block_data_cuesheet(&block->data.cue_sheet, &blockcopy->data.cue_sheet);
+		case FLAC__METADATA_TYPE_PICTURE:
+			return mutils__compare_block_data_picture(&block->data.picture, &blockcopy->data.picture);
+		default:
+			return mutils__compare_block_data_unknown(&block->data.unknown, &blockcopy->data.unknown, block->length);
+	}
+}
+
+static void *malloc_or_die_(size_t size)
+{
+	void *x = malloc(size);
+	if(0 == x) {
+		fprintf(stderr, "ERROR: out of memory allocating %u bytes\n", (uint32_t)size);
+		exit(1);
+	}
+	return x;
+}
+
+static void *calloc_or_die_(size_t n, size_t size)
+{
+	void *x = calloc(n, size);
+	if(0 == x) {
+		fprintf(stderr, "ERROR: out of memory allocating %u bytes\n", (uint32_t)n * (uint32_t)size);
+		exit(1);
+	}
+	return x;
+}
+
+static char *strdup_or_die_(const char *s)
+{
+	char *x = strdup(s);
+	if(0 == x) {
+		fprintf(stderr, "ERROR: out of memory copying string \"%s\"\n", s);
+		exit(1);
+	}
+	return x;
+}
+
+void mutils__init_metadata_blocks(
+	FLAC__StreamMetadata *streaminfo,
+	FLAC__StreamMetadata *padding,
+	FLAC__StreamMetadata *seektable,
+	FLAC__StreamMetadata *application1,
+	FLAC__StreamMetadata *application2,
+	FLAC__StreamMetadata *vorbiscomment,
+	FLAC__StreamMetadata *cuesheet,
+	FLAC__StreamMetadata *picture,
+	FLAC__StreamMetadata *unknown
+)
+{
+	/*
+		most of the actual numbers and data in the blocks don't matter,
+		we just want to make sure the decoder parses them correctly
+
+		remember, the metadata interface gets tested after the decoders,
+		so we do all the metadata manipulation here without it.
+	*/
+
+	/* min/max_framesize and md5sum don't get written at first, so we have to leave them 0 */
+	streaminfo->is_last = false;
+	streaminfo->type = FLAC__METADATA_TYPE_STREAMINFO;
+	streaminfo->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
+	streaminfo->data.stream_info.min_blocksize = 576;
+	streaminfo->data.stream_info.max_blocksize = 576;
+	streaminfo->data.stream_info.min_framesize = 0;
+	streaminfo->data.stream_info.max_framesize = 0;
+	streaminfo->data.stream_info.sample_rate = 44100;
+	streaminfo->data.stream_info.channels = 1;
+	streaminfo->data.stream_info.bits_per_sample = 8;
+	streaminfo->data.stream_info.total_samples = 0;
+	memset(streaminfo->data.stream_info.md5sum, 0, 16);
+
+	padding->is_last = false;
+	padding->type = FLAC__METADATA_TYPE_PADDING;
+	padding->length = 1234;
+
+	seektable->is_last = false;
+	seektable->type = FLAC__METADATA_TYPE_SEEKTABLE;
+	seektable->data.seek_table.num_points = 2;
+	seektable->length = seektable->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
+	seektable->data.seek_table.points = malloc_or_die_(seektable->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint));
+	seektable->data.seek_table.points[0].sample_number = 0;
+	seektable->data.seek_table.points[0].stream_offset = 0;
+	seektable->data.seek_table.points[0].frame_samples = streaminfo->data.stream_info.min_blocksize;
+	seektable->data.seek_table.points[1].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+	seektable->data.seek_table.points[1].stream_offset = 1000;
+	seektable->data.seek_table.points[1].frame_samples = streaminfo->data.stream_info.min_blocksize;
+
+	application1->is_last = false;
+	application1->type = FLAC__METADATA_TYPE_APPLICATION;
+	application1->length = 8;
+	memcpy(application1->data.application.id, "This", 4);
+	application1->data.application.data = malloc_or_die_(4);
+	memcpy(application1->data.application.data, "\xf0\xe1\xd2\xc3", 4);
+
+	application2->is_last = false;
+	application2->type = FLAC__METADATA_TYPE_APPLICATION;
+	application2->length = 4;
+	memcpy(application2->data.application.id, "Here", 4);
+	application2->data.application.data = 0;
+
+	{
+		const uint32_t vendor_string_length = (uint32_t)strlen(FLAC__VENDOR_STRING);
+		vorbiscomment->is_last = false;
+		vorbiscomment->type = FLAC__METADATA_TYPE_VORBIS_COMMENT;
+		vorbiscomment->length = (4 + vendor_string_length) + 4 + (4 + 5) + (4 + 0);
+		vorbiscomment->data.vorbis_comment.vendor_string.length = vendor_string_length;
+		vorbiscomment->data.vorbis_comment.vendor_string.entry = malloc_or_die_(vendor_string_length+1);
+		memcpy(vorbiscomment->data.vorbis_comment.vendor_string.entry, FLAC__VENDOR_STRING, vendor_string_length+1);
+		vorbiscomment->data.vorbis_comment.num_comments = 2;
+		vorbiscomment->data.vorbis_comment.comments = malloc_or_die_(vorbiscomment->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry));
+		vorbiscomment->data.vorbis_comment.comments[0].length = 5;
+		vorbiscomment->data.vorbis_comment.comments[0].entry = malloc_or_die_(5+1);
+		memcpy(vorbiscomment->data.vorbis_comment.comments[0].entry, "ab=cd", 5+1);
+		vorbiscomment->data.vorbis_comment.comments[1].length = 0;
+		vorbiscomment->data.vorbis_comment.comments[1].entry = malloc_or_die_(1);
+		vorbiscomment->data.vorbis_comment.comments[1].entry[0] = '\0';
+	}
+
+	cuesheet->is_last = false;
+	cuesheet->type = FLAC__METADATA_TYPE_CUESHEET;
+	cuesheet->length =
+		/* cuesheet guts */
+		(
+			FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN
+		) / 8 +
+		/* 2 tracks */
+		3 * (
+			FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN
+		) / 8 +
+		/* 3 index points */
+		3 * (
+			FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN
+		) / 8
+	;
+	memset(cuesheet->data.cue_sheet.media_catalog_number, 0, sizeof(cuesheet->data.cue_sheet.media_catalog_number));
+	cuesheet->data.cue_sheet.media_catalog_number[0] = 'j';
+	cuesheet->data.cue_sheet.media_catalog_number[1] = 'C';
+	cuesheet->data.cue_sheet.lead_in = 2 * 44100;
+	cuesheet->data.cue_sheet.is_cd = true;
+	cuesheet->data.cue_sheet.num_tracks = 3;
+	cuesheet->data.cue_sheet.tracks = calloc_or_die_(cuesheet->data.cue_sheet.num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track));
+	cuesheet->data.cue_sheet.tracks[0].offset = 0;
+	cuesheet->data.cue_sheet.tracks[0].number = 1;
+	memcpy(cuesheet->data.cue_sheet.tracks[0].isrc, "ACBDE1234567", sizeof(cuesheet->data.cue_sheet.tracks[0].isrc));
+	cuesheet->data.cue_sheet.tracks[0].type = 0;
+	cuesheet->data.cue_sheet.tracks[0].pre_emphasis = 1;
+	cuesheet->data.cue_sheet.tracks[0].num_indices = 2;
+	cuesheet->data.cue_sheet.tracks[0].indices = malloc_or_die_(cuesheet->data.cue_sheet.tracks[0].num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index));
+	cuesheet->data.cue_sheet.tracks[0].indices[0].offset = 0;
+	cuesheet->data.cue_sheet.tracks[0].indices[0].number = 0;
+	cuesheet->data.cue_sheet.tracks[0].indices[1].offset = 123 * 588;
+	cuesheet->data.cue_sheet.tracks[0].indices[1].number = 1;
+	cuesheet->data.cue_sheet.tracks[1].offset = 1234 * 588;
+	cuesheet->data.cue_sheet.tracks[1].number = 2;
+	memcpy(cuesheet->data.cue_sheet.tracks[1].isrc, "ACBDE7654321", sizeof(cuesheet->data.cue_sheet.tracks[1].isrc));
+	cuesheet->data.cue_sheet.tracks[1].type = 1;
+	cuesheet->data.cue_sheet.tracks[1].pre_emphasis = 0;
+	cuesheet->data.cue_sheet.tracks[1].num_indices = 1;
+	cuesheet->data.cue_sheet.tracks[1].indices = malloc_or_die_(cuesheet->data.cue_sheet.tracks[1].num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index));
+	cuesheet->data.cue_sheet.tracks[1].indices[0].offset = 0;
+	cuesheet->data.cue_sheet.tracks[1].indices[0].number = 1;
+	cuesheet->data.cue_sheet.tracks[2].offset = 12345 * 588;
+	cuesheet->data.cue_sheet.tracks[2].number = 170;
+	cuesheet->data.cue_sheet.tracks[2].num_indices = 0;
+
+	picture->is_last = false;
+	picture->type = FLAC__METADATA_TYPE_PICTURE;
+	picture->length =
+		(
+			FLAC__STREAM_METADATA_PICTURE_TYPE_LEN +
+			FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN + /* will add the length for the string later */
+			FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN + /* will add the length for the string later */
+			FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN +
+			FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN +
+			FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN +
+			FLAC__STREAM_METADATA_PICTURE_COLORS_LEN +
+			FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN /* will add the length for the data later */
+		) / 8
+	;
+	picture->data.picture.type = FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER;
+	picture->data.picture.mime_type = strdup_or_die_("image/jpeg");
+	picture->length += strlen(picture->data.picture.mime_type);
+	picture->data.picture.description = (FLAC__byte*)strdup_or_die_("desc");
+	picture->length += strlen((const char *)picture->data.picture.description);
+	picture->data.picture.width = 300;
+	picture->data.picture.height = 300;
+	picture->data.picture.depth = 24;
+	picture->data.picture.colors = 0;
+	picture->data.picture.data = (FLAC__byte*)strdup_or_die_("SOMEJPEGDATA");
+	picture->data.picture.data_length = strlen((const char *)picture->data.picture.data);
+	picture->length += picture->data.picture.data_length;
+
+	unknown->is_last = true;
+	unknown->type = 126;
+	unknown->length = 8;
+	unknown->data.unknown.data = malloc_or_die_(unknown->length);
+	memcpy(unknown->data.unknown.data, "\xfe\xdc\xba\x98\xf0\xe1\xd2\xc3", unknown->length);
+}
+
+void mutils__free_metadata_blocks(
+	FLAC__StreamMetadata *streaminfo,
+	FLAC__StreamMetadata *padding,
+	FLAC__StreamMetadata *seektable,
+	FLAC__StreamMetadata *application1,
+	FLAC__StreamMetadata *application2,
+	FLAC__StreamMetadata *vorbiscomment,
+	FLAC__StreamMetadata *cuesheet,
+	FLAC__StreamMetadata *picture,
+	FLAC__StreamMetadata *unknown
+)
+{
+	(void)streaminfo, (void)padding, (void)application2;
+	free(seektable->data.seek_table.points);
+	free(application1->data.application.data);
+	free(vorbiscomment->data.vorbis_comment.vendor_string.entry);
+	free(vorbiscomment->data.vorbis_comment.comments[0].entry);
+	free(vorbiscomment->data.vorbis_comment.comments);
+	free(cuesheet->data.cue_sheet.tracks[0].indices);
+	free(cuesheet->data.cue_sheet.tracks[1].indices);
+	free(cuesheet->data.cue_sheet.tracks);
+	free(picture->data.picture.mime_type);
+	free(picture->data.picture.description);
+	free(picture->data.picture.data);
+	free(unknown->data.unknown.data);
+}