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fdkaac/src/metadata.c

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#if HAVE_CONFIG_H
# include "config.h"
#endif
#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#elif defined(_MSC_VER)
# define SCNd64 "I64d"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "m4af.h"
#include "metadata.h"
#include "compat.h"
#include "parson.h"
typedef struct tag_key_mapping_t {
const char *name;
uint32_t fcc;
} tag_key_mapping_t;
enum {
TAG_TOTAL_DISCS = 1,
TAG_TOTAL_TRACKS = 2
};
static tag_key_mapping_t tag_mapping_table[] = {
{ "album", M4AF_TAG_ALBUM },
{ "albumartist", M4AF_TAG_ALBUM_ARTIST },
{ "albumartistsort", M4AF_FOURCC('s','o','a','a') },
{ "albumartistsortorder", M4AF_FOURCC('s','o','a','a') },
{ "albumsort", M4AF_FOURCC('s','o','a','l') },
{ "albumsortorder", M4AF_FOURCC('s','o','a','l') },
{ "artist", M4AF_TAG_ARTIST },
{ "artistsort", M4AF_FOURCC('s','o','a','r') },
{ "artistsortorder", M4AF_FOURCC('s','o','a','r') },
{ "band", M4AF_TAG_ALBUM_ARTIST },
{ "bpm", M4AF_TAG_TEMPO },
{ "comment", M4AF_TAG_COMMENT },
{ "compilation", M4AF_TAG_COMPILATION },
{ "composer", M4AF_TAG_COMPOSER },
{ "composersort", M4AF_FOURCC('s','o','c','o') },
{ "composersortorder", M4AF_FOURCC('s','o','c','o') },
{ "contentgroup", M4AF_TAG_GROUPING },
{ "copyright", M4AF_TAG_COPYRIGHT },
{ "date", M4AF_TAG_DATE },
{ "disc", M4AF_TAG_DISK },
{ "disctotal", TAG_TOTAL_DISCS },
{ "discnumber", M4AF_TAG_DISK },
{ "genre", M4AF_TAG_GENRE },
{ "grouping", M4AF_TAG_GROUPING },
{ "itunescompilation", M4AF_TAG_COMPILATION },
{ "lyrics", M4AF_TAG_LYRICS },
{ "title", M4AF_TAG_TITLE },
{ "titlesort", M4AF_FOURCC('s','o','n','m') },
{ "titlesortorder", M4AF_FOURCC('s','o','n','m') },
{ "totaldiscs", TAG_TOTAL_DISCS },
{ "totaltracks", TAG_TOTAL_TRACKS },
{ "track", M4AF_TAG_TRACK },
{ "tracknumber", M4AF_TAG_TRACK },
{ "tracktotal", TAG_TOTAL_TRACKS },
{ "unsyncedlyrics", M4AF_TAG_LYRICS },
{ "year", M4AF_TAG_DATE },
};
static
int tag_key_comparator(const void *k, const void *v)
{
return strcmp((const char *)k, ((tag_key_mapping_t*)v)->name);
}
static
uint32_t get_tag_fcc_from_name(const char *name)
{
char *name_p = 0, *p;
const tag_key_mapping_t *ent;
name_p = malloc(strlen(name) + 1);
for (p = name_p; *name; ++name) {
unsigned char c = *name;
if (c != ' ' && c != '-' && c != '_')
*p++ = tolower(c);
}
*p = 0;
ent = bsearch(name_p, tag_mapping_table,
sizeof(tag_mapping_table) / sizeof(tag_mapping_table[0]),
sizeof(tag_mapping_table[0]),
tag_key_comparator);
free(name_p);
return ent ? ent->fcc : 0;
}
char *aacenc_load_tag_from_file(const char *path, uint32_t *data_size)
{
FILE *fp = 0;
char *data = 0;
int64_t size;
if ((fp = aacenc_fopen(path, "rb")) == NULL) {
aacenc_fprintf(stderr, "WARNING: %s: %s\n", path, strerror(errno));
goto END;
}
fseeko(fp, 0, SEEK_END);
size = ftello(fp);
if (size > 5*1024*1024) {
aacenc_fprintf(stderr, "WARNING: %s: size too large\n", path);
goto END;
}
fseeko(fp, 0, SEEK_SET);
data = malloc(size + 1);
if (data) fread(data, 1, size, fp);
data[size] = 0;
*data_size = (uint32_t)size;
END:
if (fp) fclose(fp);
return data;
}
void aacenc_param_add_itmf_entry(aacenc_tag_param_t *params, uint32_t tag,
const char *key, const char *value,
uint32_t size, int is_file_name)
{
aacenc_tag_entry_t *entry;
if (!is_file_name && !size)
return;
if (params->tag_count == params->tag_table_capacity) {
unsigned newsize = params->tag_table_capacity;
newsize = newsize ? newsize * 2 : 1;
params->tag_table =
realloc(params->tag_table, newsize * sizeof(aacenc_tag_entry_t));
params->tag_table_capacity = newsize;
}
entry = params->tag_table + params->tag_count;
entry->tag = tag;
if (tag == M4AF_FOURCC('-','-','-','-'))
entry->name = key;
entry->data = value;
entry->data_size = size;
entry->is_file_name = is_file_name;
params->tag_count++;
}
static
void tag_put_number_pair(m4af_ctx_t *m4af, uint32_t fcc,
const char *snumber, const char *stotal)
{
unsigned number = 0, total = 0;
char buf[128];
aacenc_tag_entry_t entry = { 0 };
if (snumber) sscanf(snumber, "%u", &number);
if (stotal) sscanf(stotal, "%u", &total);
if (number) {
if (total) sprintf(buf, "%u/%u", number, total);
else sprintf(buf, "%u", number);
entry.tag = fcc;
entry.data = buf;
entry.data_size = strlen(buf);
aacenc_put_tag_entry(m4af, &entry);
}
}
void aacenc_put_tags_from_json(m4af_ctx_t *m4af, const char *json_filename)
{
char *data = 0;
JSON_Value *json = 0;
JSON_Object *root;
size_t i, nelts;
uint32_t data_size;
char *json_dot_path;
char *filename = 0;
char *disc = 0;
char *track = 0;
char *total_discs = 0;
char *total_tracks = 0;
aacenc_tag_entry_t entry = { 0 };
filename = strdup(json_filename);
if ((json_dot_path = strchr(filename, '?')) != 0)
*json_dot_path++ = '\0';
if (!(data = aacenc_load_tag_from_file(filename, &data_size)))
goto DONE;
if (!(json = json_parse_string(data))) {
aacenc_fprintf(stderr, "WARNING: failed to parse JSON\n");
goto DONE;
}
root = json_value_get_object(json);
if (json_dot_path) {
if (!(root = json_object_dotget_object(root, json_dot_path))) {
aacenc_fprintf(stderr, "WARNING: %s not found in JSON\n",
json_dot_path);
goto DONE;
}
}
nelts = json_object_get_count(root);
for (i = 0; i < nelts; ++i) {
char buf[256];
const char *key = 0;
const char *val = 0;
uint32_t fcc = 0;
JSON_Value_Type type;
key = json_object_get_name(root, i);
type = json_value_get_type(json_object_get_value(root, key));
if (type == JSONString)
val = json_object_get_string(root, key);
else if (type == JSONNumber) {
double num = json_object_get_number(root, key);
sprintf(buf, "%g", num);
val = buf;
} else if (type == JSONBoolean) {
int n = json_object_get_boolean(root, key);
sprintf(buf, "%d", n);
val = buf;
}
fcc = get_tag_fcc_from_name(key);
if (!val || !fcc)
continue;
switch (fcc) {
case TAG_TOTAL_DISCS:
total_discs = strdup(val); break;
case TAG_TOTAL_TRACKS:
total_tracks = strdup(val); break;
case M4AF_TAG_DISK:
disc = strdup(val); break;
case M4AF_TAG_TRACK:
track = strdup(val); break;
default:
{
entry.tag = fcc;
entry.data = val;
entry.data_size = strlen(val);
aacenc_put_tag_entry(m4af, &entry);
}
}
}
tag_put_number_pair(m4af, M4AF_TAG_TRACK, track, total_tracks);
tag_put_number_pair(m4af, M4AF_TAG_DISK, disc, total_discs);
DONE:
if (track) free(track);
if (disc) free(disc);
if (total_tracks) free(total_tracks);
if (total_discs) free(total_discs);
if (data) free(data);
if (filename) free(filename);
if (json) json_value_free(json);
}
void aacenc_put_tag_entry(m4af_ctx_t *m4af, const aacenc_tag_entry_t *tag)
{
unsigned m, n = 0;
const char *data = tag->data;
uint32_t data_size = tag->data_size;
char *file_contents = 0;
if (tag->is_file_name) {
data = file_contents = aacenc_load_tag_from_file(tag->data, &data_size);
if (!data) return;
}
switch (tag->tag) {
case M4AF_TAG_TRACK:
if (sscanf(data, "%u/%u", &m, &n) >= 1)
m4af_add_itmf_track_tag(m4af, m, n);
break;
case M4AF_TAG_DISK:
if (sscanf(data, "%u/%u", &m, &n) >= 1)
m4af_add_itmf_disk_tag(m4af, m, n);
break;
case M4AF_TAG_GENRE_ID3:
if (sscanf(data, "%u", &n) == 1)
m4af_add_itmf_genre_tag(m4af, n);
break;
case M4AF_TAG_TEMPO:
if (sscanf(data, "%u", &n) == 1)
m4af_add_itmf_int16_tag(m4af, tag->tag, n);
break;
case M4AF_TAG_COMPILATION:
case M4AF_FOURCC('a','k','I','D'):
case M4AF_FOURCC('h','d','v','d'):
case M4AF_FOURCC('p','c','s','t'):
case M4AF_FOURCC('p','g','a','p'):
case M4AF_FOURCC('r','t','n','g'):
case M4AF_FOURCC('s','t','i','k'):
if (sscanf(data, "%u", &n) == 1)
m4af_add_itmf_int8_tag(m4af, tag->tag, n);
break;
case M4AF_FOURCC('a','t','I','D'):
case M4AF_FOURCC('c','m','I','D'):
case M4AF_FOURCC('c','n','I','D'):
case M4AF_FOURCC('g','e','I','D'):
case M4AF_FOURCC('s','f','I','D'):
case M4AF_FOURCC('t','v','s','n'):
case M4AF_FOURCC('t','v','s','s'):
if (sscanf(data, "%u", &n) == 1)
m4af_add_itmf_int32_tag(m4af, tag->tag, n);
break;
case M4AF_FOURCC('p','l','I','D'):
{
int64_t qn;
if (sscanf(data, "%" SCNd64, &qn) == 1)
m4af_add_itmf_int64_tag(m4af, tag->tag, qn);
break;
}
case M4AF_TAG_ARTWORK:
{
int data_type = 0;
if (!memcmp(data, "GIF", 3))
data_type = M4AF_GIF;
else if (!memcmp(data, "\xff\xd8\xff", 3))
data_type = M4AF_JPEG;
else if (!memcmp(data, "\x89PNG", 4))
data_type = M4AF_PNG;
if (data_type)
m4af_add_itmf_short_tag(m4af, tag->tag, data_type,
data, data_size);
break;
}
case M4AF_FOURCC('-','-','-','-'):
{
char *u8 = aacenc_to_utf8(data);
m4af_add_itmf_long_tag(m4af, tag->name, u8);
free(u8);
break;
}
case M4AF_TAG_TITLE:
case M4AF_TAG_ARTIST:
case M4AF_TAG_ALBUM:
case M4AF_TAG_GENRE:
case M4AF_TAG_DATE:
case M4AF_TAG_COMPOSER:
case M4AF_TAG_GROUPING:
case M4AF_TAG_COMMENT:
case M4AF_TAG_LYRICS:
case M4AF_TAG_TOOL:
case M4AF_TAG_ALBUM_ARTIST:
case M4AF_TAG_DESCRIPTION:
case M4AF_TAG_LONG_DESCRIPTION:
case M4AF_TAG_COPYRIGHT:
case M4AF_FOURCC('a','p','I','D'):
case M4AF_FOURCC('c','a','t','g'):
case M4AF_FOURCC('k','e','y','w'):
case M4AF_FOURCC('p','u','r','d'):
case M4AF_FOURCC('p','u','r','l'):
case M4AF_FOURCC('s','o','a','a'):
case M4AF_FOURCC('s','o','a','l'):
case M4AF_FOURCC('s','o','a','r'):
case M4AF_FOURCC('s','o','c','o'):
case M4AF_FOURCC('s','o','n','m'):
case M4AF_FOURCC('s','o','s','n'):
case M4AF_FOURCC('t','v','e','n'):
case M4AF_FOURCC('t','v','n','n'):
case M4AF_FOURCC('t','v','s','h'):
case M4AF_FOURCC('x','i','d',' '):
case M4AF_FOURCC('\xa9','e','n','c'):
case M4AF_FOURCC('\xa9','s','t','3'):
{
char *u8 = aacenc_to_utf8(data);
m4af_add_itmf_string_tag(m4af, tag->tag, u8);
free(u8);
break;
}
default:
fprintf(stderr, "WARNING: unknown/unsupported tag: %c%c%c%c\n",
tag->tag >> 24, (tag->tag >> 16) & 0xff,
(tag->tag >> 8) & 0xff, tag->tag & 0xff);
}
if (file_contents) free(file_contents);
}
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