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decoder/flac: eliminate the obsolete "track number" code

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This has been deprecated by the "embcue" playlist plugin.
This commit is contained in:
Max Kellermann 2012-10-02 11:43:26 +02:00
parent ade0483641
commit 9c1d1ef268
4 changed files with 18 additions and 41 deletions
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2
src/decoder/FLACCommon.cxx
View File

@ -133,7 +133,7 @@ void flac_metadata_common_cb(const FLAC__StreamMetadata * block,
mixramp_start, mixramp_end);
if (data->tag != nullptr)
flac_vorbis_comments_to_tag(data->tag, nullptr,
flac_vorbis_comments_to_tag(data->tag,
&block->data.vorbis_comment);
default:

5
src/decoder/FLACDecoderPlugin.cxx
View File

@ -176,7 +176,7 @@ static bool
flac_scan_file(const char *file,
const struct tag_handler *handler, void *handler_ctx)
{
return flac_scan_file2(file, nullptr, handler, handler_ctx);
return flac_scan_file2(file, handler, handler_ctx);
}
/**
@ -382,8 +382,7 @@ oggflac_scan_file(const char *file,
if (!(block = FLAC__metadata_iterator_get_block(it)))
break;
flac_scan_metadata(nullptr, block,
handler, handler_ctx);
flac_scan_metadata(block, handler, handler_ctx);
} while (FLAC__metadata_iterator_next(it));
FLAC__metadata_iterator_delete(it);

45
src/decoder/FLACMetaData.cxx
View File

@ -133,30 +133,15 @@ flac_parse_mixramp(char **mixramp_start, char **mixramp_end,
*/
static const char *
flac_comment_value(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
const char *name, const char *char_tnum, size_t *length_r)
const char *name, size_t *length_r)
{
size_t name_length = strlen(name);
size_t char_tnum_length = 0;
const char *comment = (const char*)entry->entry;
if (entry->length <= name_length ||
g_ascii_strncasecmp(comment, name, name_length) != 0)
return nullptr;
if (char_tnum != nullptr) {
char_tnum_length = strlen(char_tnum);
if (entry->length > name_length + char_tnum_length + 2 &&
comment[name_length] == '[' &&
g_ascii_strncasecmp(comment + name_length + 1,
char_tnum, char_tnum_length) == 0 &&
comment[name_length + char_tnum_length + 1] == ']')
name_length = name_length + char_tnum_length + 2;
else if (entry->length > name_length + char_tnum_length &&
g_ascii_strncasecmp(comment + name_length,
char_tnum, char_tnum_length) == 0)
name_length = name_length + char_tnum_length;
}
if (comment[name_length] == '=') {
*length_r = entry->length - name_length - 1;
return comment + name_length + 1;
@ -172,13 +157,12 @@ flac_comment_value(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
static bool
flac_copy_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
const char *name, enum tag_type tag_type,
const char *char_tnum,
const struct tag_handler *handler, void *handler_ctx)
{
const char *value;
size_t value_length;
value = flac_comment_value(entry, name, char_tnum, &value_length);
value = flac_comment_value(entry, name, &value_length);
if (value != nullptr) {
char *p = g_strndup(value, value_length);
tag_handler_invoke_tag(handler, handler_ctx, tag_type, p);
@ -190,8 +174,7 @@ flac_copy_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
}
static void
flac_scan_comment(const char *char_tnum,
const FLAC__StreamMetadata_VorbisComment_Entry *entry,
flac_scan_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
const struct tag_handler *handler, void *handler_ctx)
{
if (handler->pair != nullptr) {
@ -208,36 +191,33 @@ flac_scan_comment(const char *char_tnum,
}
for (const struct tag_table *i = xiph_tags; i->name != nullptr; ++i)
if (flac_copy_comment(entry, i->name, i->type, char_tnum,
if (flac_copy_comment(entry, i->name, i->type,
handler, handler_ctx))
return;
for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i)
if (flac_copy_comment(entry,
tag_item_names[i], (enum tag_type)i,
char_tnum,
handler, handler_ctx))
return;
}
static void
flac_scan_comments(const char *char_tnum,
const FLAC__StreamMetadata_VorbisComment *comment,
flac_scan_comments(const FLAC__StreamMetadata_VorbisComment *comment,
const struct tag_handler *handler, void *handler_ctx)
{
for (unsigned i = 0; i < comment->num_comments; ++i)
flac_scan_comment(char_tnum, &comment->comments[i],
flac_scan_comment(&comment->comments[i],
handler, handler_ctx);
}
void
flac_scan_metadata(const char *track,
const FLAC__StreamMetadata *block,
flac_scan_metadata(const FLAC__StreamMetadata *block,
const struct tag_handler *handler, void *handler_ctx)
{
switch (block->type) {
case FLAC__METADATA_TYPE_VORBIS_COMMENT:
flac_scan_comments(track, &block->data.vorbis_comment,
flac_scan_comments(&block->data.vorbis_comment,
handler, handler_ctx);
break;
@ -253,15 +233,14 @@ flac_scan_metadata(const char *track,
}
void
flac_vorbis_comments_to_tag(struct tag *tag, const char *char_tnum,
flac_vorbis_comments_to_tag(struct tag *tag,
const FLAC__StreamMetadata_VorbisComment *comment)
{
flac_scan_comments(char_tnum, comment,
&add_tag_handler, tag);
flac_scan_comments(comment, &add_tag_handler, tag);
}
bool
flac_scan_file2(const char *file, const char *char_tnum,
flac_scan_file2(const char *file,
const struct tag_handler *handler, void *handler_ctx)
{
FLAC__Metadata_SimpleIterator *it;
@ -298,7 +277,7 @@ flac_scan_file2(const char *file, const char *char_tnum,
if (!block)
break;
flac_scan_metadata(char_tnum, block, handler, handler_ctx);
flac_scan_metadata(block, handler, handler_ctx);
FLAC__metadata_object_delete(block);
} while (FLAC__metadata_simple_iterator_next(it));

7
src/decoder/FLACMetaData.hxx
View File

@ -46,16 +46,15 @@ flac_parse_mixramp(char **mixramp_start, char **mixramp_end,
const FLAC__StreamMetadata *block);
void
flac_vorbis_comments_to_tag(struct tag *tag, const char *char_tnum,
flac_vorbis_comments_to_tag(struct tag *tag,
const FLAC__StreamMetadata_VorbisComment *comment);
void
flac_scan_metadata(const char *track,
const FLAC__StreamMetadata *block,
flac_scan_metadata(const FLAC__StreamMetadata *block,
const struct tag_handler *handler, void *handler_ctx);
bool
flac_scan_file2(const char *file, const char *char_tnum,
flac_scan_file2(const char *file,
const struct tag_handler *handler, void *handler_ctx);
#endif