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add FLAC__metadata_simple_iterator_get_block_offset(), FLAC__metadata_simple_iterator_get_block_length(), FLAC__metadata_simple_iterator_is_last()

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This commit is contained in:
Josh Coalson
2007-08-14 00:34:50 +00:00
parent a956a821c7
commit 09ccf20ae6
5 changed files with 105 additions and 2 deletions
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8
doc/html/changelog.html
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@@ -118,13 +118,17 @@
<li>
libFLAC:
<ul>
<li>(none)</li>
<li><b>Added</b> FLAC__metadata_simple_iterator_is_last()</li>
<li><b>Added</b> FLAC__metadata_simple_iterator_get_block_offset()</li>
<li><b>Added</b> FLAC__metadata_simple_iterator_get_block_length()</li>
</ul>
</li>
<li>
libFLAC++:
<ul>
<li>(none)</li>
<li><b>Added</b> FLAC::Metadata::SimpleIterator::is_last()</li>
<li><b>Added</b> FLAC::Metadata::SimpleIterator::get_block_offset()</li>
<li><b>Added</b> FLAC::Metadata::SimpleIterator::get_block_length()</li>
</ul>
</li>
</ul>

3
include/FLAC++/metadata.h
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@@ -1018,8 +1018,11 @@ namespace FLAC {
bool next(); ///< See FLAC__metadata_simple_iterator_next().
bool prev(); ///< See FLAC__metadata_simple_iterator_prev().
bool is_last() const; ///< See FLAC__metadata_simple_iterator_is_last().
off_t get_block_offset() const; ///< See FLAC__metadata_simple_iterator_get_block_offset().
::FLAC__MetadataType get_block_type() const; ///< See FLAC__metadata_simple_iterator_get_block_type().
unsigned get_block_length() const; ///< See FLAC__metadata_simple_iterator_get_block_length().
Prototype *get_block(); ///< See FLAC__metadata_simple_iterator_get_block().
bool set_block(Prototype *block, bool use_padding = true); ///< See FLAC__metadata_simple_iterator_set_block().
bool insert_block_after(Prototype *block, bool use_padding = true); ///< See FLAC__metadata_simple_iterator_insert_block_after().

51
include/FLAC/metadata.h
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@@ -443,6 +443,38 @@ FLAC_API FLAC__bool FLAC__metadata_simple_iterator_next(FLAC__Metadata_SimpleIte
*/
FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator);
/*@@@@add to tests*/
/** Returns a flag telling if the current metadata block is the last.
*
* \param iterator A pointer to an existing initialized iterator.
* \assert
* \code iterator != NULL \endcode
* \a iterator has been successfully initialized with
* FLAC__metadata_simple_iterator_init()
* \retval FLAC__bool
* \c true if the current metadata block is the last in the file,
* else \c false.
*/
FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator);
/*@@@@add to tests*/
/** Get the offset of the metadata block at the current position. This
* avoids reading the actual block data which can save time for large
* blocks.
*
* \param iterator A pointer to an existing initialized iterator.
* \assert
* \code iterator != NULL \endcode
* \a iterator has been successfully initialized with
* FLAC__metadata_simple_iterator_init()
* \retval off_t
* The offset of the metadata block at the current iterator position.
* This is the byte offset relative to the beginning of the file of
* the current metadata block's header.
*/
FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator);
/** Get the type of the metadata block at the current position. This
* avoids reading the actual block data which can save time for large
* blocks.
@@ -458,6 +490,25 @@ FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIte
FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator);
/*@@@@add to tests*/
/** Get the length of the metadata block at the current position. This
* avoids reading the actual block data which can save time for large
* blocks.
*
* \param iterator A pointer to an existing initialized iterator.
* \assert
* \code iterator != NULL \endcode
* \a iterator has been successfully initialized with
* FLAC__metadata_simple_iterator_init()
* \retval unsigned
* The length of the metadata block at the current iterator position.
* The is same length as that in the
* <a href="http://flac.sourceforge.net/format.html#metadata_block_header">metadata block header</a>,
* i.e. the length of the metadata body that follows the header.
*/
FLAC_API unsigned FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator);
/** Get the metadata block at the current position. You can modify the
* block but must use FLAC__metadata_simple_iterator_set_block() to
* write it back to the FLAC file.

21
src/libFLAC++/metadata.cpp
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@@ -1336,12 +1336,33 @@ namespace FLAC {
return (bool)::FLAC__metadata_simple_iterator_prev(iterator_);
}
//@@@@ add to tests
bool SimpleIterator::is_last() const
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__metadata_simple_iterator_is_last(iterator_);
}
//@@@@ add to tests
off_t SimpleIterator::get_block_offset() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__metadata_simple_iterator_get_block_offset(iterator_);
}
::FLAC__MetadataType SimpleIterator::get_block_type() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__metadata_simple_iterator_get_block_type(iterator_);
}
//@@@@ add to tests
unsigned SimpleIterator::get_block_length() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__metadata_simple_iterator_get_block_length(iterator_);
}
Prototype *SimpleIterator::get_block()
{
FLAC__ASSERT(is_valid());

24
src/libFLAC/metadata_iterators.c
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@@ -577,6 +577,22 @@ FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIte
return true;
}
FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator)
{
FLAC__ASSERT(0 != iterator);
FLAC__ASSERT(0 != iterator->file);
return iterator->is_last;
}
FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator)
{
FLAC__ASSERT(0 != iterator);
FLAC__ASSERT(0 != iterator->file);
return iterator->offset[iterator->depth];
}
FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator)
{
FLAC__ASSERT(0 != iterator);
@@ -585,6 +601,14 @@ FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const
return iterator->type;
}
FLAC_API unsigned FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator)
{
FLAC__ASSERT(0 != iterator);
FLAC__ASSERT(0 != iterator->file);
return iterator->length;
}
FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator)
{
FLAC__StreamMetadata *block = FLAC__metadata_object_new(iterator->type);