/* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2001,2002,2003 Josh Coalson
+ * Copyright (C) 2001,2002,2003,2004,2005,2006,2007,2008,2009 Josh Coalson
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
*
- * This library 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
- * Library General Public License for more details.
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
*
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <stdarg.h>
-#if defined _MSC_VER || defined __MINGW32__
-#include <sys/utime.h> /* for utime() */
-#include <io.h> /* for chmod() */
-#else
-#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
-#include <utime.h> /* for utime() */
-#include <unistd.h> /* for chown(), unlink() */
-#endif
#include <sys/stat.h> /* for stat(), maybe chmod() */
#include "private/metadata.h"
#include "FLAC/assert.h"
-#include "FLAC/file_decoder.h"
-
-#ifdef max
-#undef max
-#endif
-#define max(a,b) ((a)>(b)?(a):(b))
-#ifdef min
-#undef min
-#endif
-#define min(a,b) ((a)<(b)?(a):(b))
+#include "FLAC/stream_decoder.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "share/macros.h"
+#include "share/safe_str.h"
+#include "private/macros.h"
+#include "private/memory.h"
+/* Alias the first (in share/alloc.h) to the second (in src/libFLAC/memory.c). */
+#define safe_malloc_mul_2op_ safe_malloc_mul_2op_p
/****************************************************************************
*
static FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator);
static FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_(FILE *file, FLAC__StreamMetadata_StreamInfo *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_(FILE *file, FLAC__StreamMetadata_Padding *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_(FILE *file, FLAC__StreamMetadata_Application *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_(FILE *file, FLAC__StreamMetadata_SeekTable *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_(FILE *file, FLAC__StreamMetadata_VorbisComment_Entry *entry);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_(FILE *file, FLAC__StreamMetadata_VorbisComment *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_(FILE *file, FLAC__StreamMetadata_CueSheet_Track *track);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_(FILE *file, FLAC__StreamMetadata_CueSheet *block);
-static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_(FILE *file, FLAC__StreamMetadata_Unknown *block, unsigned block_length);
+static FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, unsigned *length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, unsigned block_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, unsigned block_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, unsigned block_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, unsigned block_length);
static FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
static FLAC__bool write_metadata_block_data_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
-static FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_streaminfo_(FILE *file, const FLAC__StreamMetadata_StreamInfo *block);
-static FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_padding_(FILE *file, const FLAC__StreamMetadata_Padding *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_application_(FILE *file, const FLAC__StreamMetadata_Application *block, unsigned block_length);
-static FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_seektable_(FILE *file, const FLAC__StreamMetadata_SeekTable *block);
-static FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_vorbis_comment_(FILE *file, const FLAC__StreamMetadata_VorbisComment *block);
-static FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_cuesheet_(FILE *file, const FLAC__StreamMetadata_CueSheet *block);
-static FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_unknown_(FILE *file, const FLAC__StreamMetadata_Unknown *block, unsigned block_length);
+static FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
+static FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
+static FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block);
+static FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, unsigned block_length);
+static FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, unsigned block_length);
+static FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block);
+static FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block);
+static FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block);
+static FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block);
+static FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, unsigned block_length);
+
static FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block);
static FLAC__bool write_metadata_block_stationary_with_padding_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, unsigned padding_length, FLAC__bool padding_is_last);
static FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append);
-static FLAC__bool chain_rewrite_chain_(FLAC__Metadata_Chain *chain);
-static FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *tempfile_path_prefix);
-
static void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator);
static FLAC__bool simple_iterator_pop_(FLAC__Metadata_SimpleIterator *iterator);
-/* return 0 if OK, 1 if read error, 2 if not a FLAC file */
+static unsigned seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb);
static unsigned seek_to_first_metadata_block_(FILE *f);
static FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append);
-static FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, long fixup_is_last_flag_offset, FLAC__bool backup);
+static FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, FLAC__off_t fixup_is_last_flag_offset, FLAC__bool backup);
-static FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, unsigned bytes/*@@@ 4G limit*/, FLAC__Metadata_SimpleIteratorStatus *status);
+static FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
+static FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
static FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status);
+static FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status);
static FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
static FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
static FLAC__bool get_file_stats_(const char *filename, struct stat *stats);
static void set_file_stats_(const char *filename, struct stat *stats);
+static int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence);
+static FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle);
+
static FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status);
*
***************************************************************************/
-static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__FileDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
-static void metadata_callback_(const FLAC__FileDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
-static void error_callback_(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
+static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
+static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
+static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
typedef struct {
FLAC__bool got_error;
- FLAC__bool got_streaminfo;
- FLAC__StreamMetadata *streaminfo;
+ FLAC__StreamMetadata *object;
} level0_client_data;
-FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo)
+static FLAC__StreamMetadata *get_one_metadata_block_(const char *filename, FLAC__MetadataType type)
{
level0_client_data cd;
- FLAC__FileDecoder *decoder;
+ FLAC__StreamDecoder *decoder;
FLAC__ASSERT(0 != filename);
- FLAC__ASSERT(0 != streaminfo);
- decoder = FLAC__file_decoder_new();
+ cd.got_error = false;
+ cd.object = 0;
+
+ decoder = FLAC__stream_decoder_new();
if(0 == decoder)
- return false;
+ return 0;
- cd.got_error = false;
- cd.got_streaminfo = false;
- cd.streaminfo = streaminfo;
+ FLAC__stream_decoder_set_md5_checking(decoder, false);
+ FLAC__stream_decoder_set_metadata_ignore_all(decoder);
+ FLAC__stream_decoder_set_metadata_respond(decoder, type);
- FLAC__file_decoder_set_md5_checking(decoder, false);
- FLAC__file_decoder_set_filename(decoder, filename);
- FLAC__file_decoder_set_metadata_ignore_all(decoder);
- FLAC__file_decoder_set_metadata_respond(decoder, FLAC__METADATA_TYPE_STREAMINFO);
- FLAC__file_decoder_set_write_callback(decoder, write_callback_);
- FLAC__file_decoder_set_metadata_callback(decoder, metadata_callback_);
- FLAC__file_decoder_set_error_callback(decoder, error_callback_);
- FLAC__file_decoder_set_client_data(decoder, &cd);
+ if(FLAC__stream_decoder_init_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, &cd) != FLAC__STREAM_DECODER_INIT_STATUS_OK || cd.got_error) {
+ (void)FLAC__stream_decoder_finish(decoder);
+ FLAC__stream_decoder_delete(decoder);
+ return 0;
+ }
- if(FLAC__file_decoder_init(decoder) != FLAC__FILE_DECODER_OK || cd.got_error) {
- FLAC__file_decoder_finish(decoder);
- FLAC__file_decoder_delete(decoder);
- return false;
+ if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder) || cd.got_error) {
+ (void)FLAC__stream_decoder_finish(decoder);
+ FLAC__stream_decoder_delete(decoder);
+ if(0 != cd.object)
+ FLAC__metadata_object_delete(cd.object);
+ return 0;
}
- /* the first thing decoded must be the STREAMINFO block: */
- if(!FLAC__file_decoder_process_until_end_of_metadata(decoder) || cd.got_error) {
- FLAC__file_decoder_finish(decoder);
- FLAC__file_decoder_delete(decoder);
+ (void)FLAC__stream_decoder_finish(decoder);
+ FLAC__stream_decoder_delete(decoder);
+
+ return cd.object;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo)
+{
+ FLAC__StreamMetadata *object;
+
+ FLAC__ASSERT(0 != filename);
+ FLAC__ASSERT(0 != streaminfo);
+
+ object = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_STREAMINFO);
+
+ if (object) {
+ /* can just copy the contents since STREAMINFO has no internal structure */
+ *streaminfo = *object;
+ FLAC__metadata_object_delete(object);
+ return true;
+ }
+ else {
return false;
}
+}
+
+FLAC_API FLAC__bool FLAC__metadata_get_tags(const char *filename, FLAC__StreamMetadata **tags)
+{
+ FLAC__ASSERT(0 != filename);
+ FLAC__ASSERT(0 != tags);
- FLAC__file_decoder_finish(decoder);
- FLAC__file_decoder_delete(decoder);
+ *tags = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_VORBIS_COMMENT);
- return !cd.got_error && cd.got_streaminfo;
+ return 0 != *tags;
}
-FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__FileDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+FLAC_API FLAC__bool FLAC__metadata_get_cuesheet(const char *filename, FLAC__StreamMetadata **cuesheet)
+{
+ FLAC__ASSERT(0 != filename);
+ FLAC__ASSERT(0 != cuesheet);
+
+ *cuesheet = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_CUESHEET);
+
+ return 0 != *cuesheet;
+}
+
+FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
(void)decoder, (void)frame, (void)buffer, (void)client_data;
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
-void metadata_callback_(const FLAC__FileDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
level0_client_data *cd = (level0_client_data *)client_data;
(void)decoder;
- if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO && 0 != cd->streaminfo) {
- *(cd->streaminfo) = *metadata;
- cd->got_streaminfo = true;
+ /*
+ * we assume we only get here when the one metadata block we were
+ * looking for was passed to us
+ */
+ if(!cd->got_error && 0 == cd->object) {
+ if(0 == (cd->object = FLAC__metadata_object_clone(metadata)))
+ cd->got_error = true;
}
}
-void error_callback_(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
level0_client_data *cd = (level0_client_data *)client_data;
(void)decoder;
cd->got_error = true;
}
+FLAC_API FLAC__bool FLAC__metadata_get_picture(const char *filename, FLAC__StreamMetadata **picture, FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors)
+{
+ FLAC__Metadata_SimpleIterator *it;
+ FLAC__uint64 max_area_seen = 0;
+ FLAC__uint64 max_depth_seen = 0;
+
+ FLAC__ASSERT(0 != filename);
+ FLAC__ASSERT(0 != picture);
+
+ *picture = 0;
+
+ it = FLAC__metadata_simple_iterator_new();
+ if(0 == it)
+ return false;
+ if(!FLAC__metadata_simple_iterator_init(it, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) {
+ FLAC__metadata_simple_iterator_delete(it);
+ return false;
+ }
+ do {
+ if(FLAC__metadata_simple_iterator_get_block_type(it) == FLAC__METADATA_TYPE_PICTURE) {
+ FLAC__StreamMetadata *obj = FLAC__metadata_simple_iterator_get_block(it);
+ FLAC__uint64 area = (FLAC__uint64)obj->data.picture.width * (FLAC__uint64)obj->data.picture.height;
+ /* check constraints */
+ if(
+ (type == (FLAC__StreamMetadata_Picture_Type)(-1) || type == obj->data.picture.type) &&
+ (mime_type == 0 || !strcmp(mime_type, obj->data.picture.mime_type)) &&
+ (description == 0 || !strcmp((const char *)description, (const char *)obj->data.picture.description)) &&
+ obj->data.picture.width <= max_width &&
+ obj->data.picture.height <= max_height &&
+ obj->data.picture.depth <= max_depth &&
+ obj->data.picture.colors <= max_colors &&
+ (area > max_area_seen || (area == max_area_seen && obj->data.picture.depth > max_depth_seen))
+ ) {
+ if(*picture)
+ FLAC__metadata_object_delete(*picture);
+ *picture = obj;
+ max_area_seen = area;
+ max_depth_seen = obj->data.picture.depth;
+ }
+ else {
+ FLAC__metadata_object_delete(obj);
+ }
+ }
+ } while(FLAC__metadata_simple_iterator_next(it));
+
+ FLAC__metadata_simple_iterator_delete(it);
+
+ return (0 != *picture);
+}
+
/****************************************************************************
*
FLAC__bool has_stats;
FLAC__bool is_writable;
FLAC__Metadata_SimpleIteratorStatus status;
- /*@@@ 2G limits here because of the offset type: */
- long offset[SIMPLE_ITERATOR_MAX_PUSH_DEPTH];
- long first_offset; /* this is the offset to the STREAMINFO block */
+ FLAC__off_t offset[SIMPLE_ITERATOR_MAX_PUSH_DEPTH];
+ FLAC__off_t first_offset; /* this is the offset to the STREAMINFO block */
unsigned depth;
/* this is the metadata block header of the current block we are pointing to: */
FLAC__bool is_last;
};
-FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new()
+FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new(void)
{
- FLAC__Metadata_SimpleIterator *iterator = (FLAC__Metadata_SimpleIterator*)calloc(1, sizeof(FLAC__Metadata_SimpleIterator));
+ FLAC__Metadata_SimpleIterator *iterator = calloc(1, sizeof(FLAC__Metadata_SimpleIterator));
if(0 != iterator) {
iterator->file = 0;
switch(ret) {
case 0:
iterator->depth = 0;
- iterator->first_offset = iterator->offset[iterator->depth] = ftell(iterator->file);
+ iterator->first_offset = iterator->offset[iterator->depth] = ftello(iterator->file);
return read_metadata_block_header_(iterator);
case 1:
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
return false;
case 2:
+ iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+ return false;
+ case 3:
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE;
return false;
default:
if(iterator->is_last)
return false;
- if(0 != fseek(iterator->file, iterator->length, SEEK_CUR)) {
+ if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
- iterator->offset[iterator->depth] = ftell(iterator->file);
+ iterator->offset[iterator->depth] = ftello(iterator->file);
return read_metadata_block_header_(iterator);
}
FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator)
{
- long this_offset;
+ FLAC__off_t this_offset;
FLAC__ASSERT(0 != iterator);
FLAC__ASSERT(0 != iterator->file);
if(iterator->offset[iterator->depth] == iterator->first_offset)
return false;
- if(0 != fseek(iterator->file, iterator->first_offset, SEEK_SET)) {
+ if(0 != fseeko(iterator->file, iterator->first_offset, SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
if(!read_metadata_block_header_(iterator))
return false;
- /* we ignore any error from ftell() and catch it in fseek() */
- while(ftell(iterator->file) + (long)iterator->length < iterator->offset[iterator->depth]) {
- if(0 != fseek(iterator->file, iterator->length, SEEK_CUR)) {
+ /* we ignore any error from ftello() and catch it in fseeko() */
+ while(ftello(iterator->file) + (FLAC__off_t)iterator->length < iterator->offset[iterator->depth]) {
+ if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
- this_offset = ftell(iterator->file);
+ this_offset = ftello(iterator->file);
if(!read_metadata_block_header_(iterator))
return false;
}
return true;
}
+/*@@@@add to tests*/
+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;
+}
+
+/*@@@@add to tests*/
+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);
return iterator->type;
}
+/*@@@@add to tests*/
+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;
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_get_application_id(FLAC__Metadata_SimpleIterator *iterator, FLAC__byte *id)
+{
+ const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
+
+ FLAC__ASSERT(0 != iterator);
+ FLAC__ASSERT(0 != iterator->file);
+ FLAC__ASSERT(0 != id);
+
+ if(iterator->type != FLAC__METADATA_TYPE_APPLICATION) {
+ iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
+ return false;
+ }
+
+ if(fread(id, 1, id_bytes, iterator->file) != id_bytes) {
+ iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ return false;
+ }
+
+ /* back up */
+ if(0 != fseeko(iterator->file, -((int)id_bytes), SEEK_CUR)) {
+ iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+ return false;
+ }
+
+ return true;
+}
+
FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator)
{
FLAC__StreamMetadata *block = FLAC__metadata_object_new(iterator->type);
}
/* back up to the beginning of the block data to stay consistent */
- if(0 != fseek(iterator->file, iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH, SEEK_SET)) {
+ if(0 != fseeko(iterator->file, iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH, SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
FLAC__metadata_object_delete(block);
return 0;
FLAC_API FLAC__bool FLAC__metadata_simple_iterator_set_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding)
{
- FLAC__ASSERT_DECLARATION(long debug_target_offset = iterator->offset[iterator->depth];)
+ FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth];)
FLAC__bool ret;
FLAC__ASSERT(0 != iterator);
if(use_padding && iterator->length >= FLAC__STREAM_METADATA_HEADER_LENGTH + block->length) {
ret = write_metadata_block_stationary_with_padding_(iterator, block, iterator->length - FLAC__STREAM_METADATA_HEADER_LENGTH - block->length, block->is_last);
FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
else {
ret = rewrite_whole_file_(iterator, block, /*append=*/false);
FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
}
if(padding_leftover == 0) {
ret = write_metadata_block_stationary_(iterator, block);
FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
else {
FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
}
else {
ret = rewrite_whole_file_(iterator, block, /*append=*/false);
FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(!ret || ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
}
unsigned padding_leftover = 0;
FLAC__bool padding_is_last = false;
- FLAC__ASSERT_DECLARATION(long debug_target_offset = iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length;)
+ FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length;)
FLAC__bool ret;
FLAC__ASSERT(0 != iterator);
if(padding_leftover == 0) {
ret = write_metadata_block_stationary_(iterator, block);
FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
else {
FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
}
else {
ret = rewrite_whole_file_(iterator, block, /*append=*/true);
FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
- FLAC__ASSERT(ftell(iterator->file) == debug_target_offset + (long)FLAC__STREAM_METADATA_HEADER_LENGTH);
+ FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
return ret;
}
}
FLAC_API FLAC__bool FLAC__metadata_simple_iterator_delete_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool use_padding)
{
- FLAC__ASSERT_DECLARATION(long debug_target_offset = iterator->offset[iterator->depth];)
+ FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth];)
FLAC__bool ret;
if(iterator->type == FLAC__METADATA_TYPE_STREAMINFO) {
FLAC__metadata_object_delete(padding);
if(!FLAC__metadata_simple_iterator_prev(iterator))
return false;
- FLAC__ASSERT(iterator->offset[iterator->depth] + (long)FLAC__STREAM_METADATA_HEADER_LENGTH + (long)iterator->length == debug_target_offset);
- FLAC__ASSERT(ftell(iterator->file) + (long)iterator->length == debug_target_offset);
+ FLAC__ASSERT(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length == debug_target_offset);
+ FLAC__ASSERT(ftello(iterator->file) + (FLAC__off_t)iterator->length == debug_target_offset);
return true;
}
else {
ret = rewrite_whole_file_(iterator, 0, /*append=*/false);
- FLAC__ASSERT(iterator->offset[iterator->depth] + (long)FLAC__STREAM_METADATA_HEADER_LENGTH + (long)iterator->length == debug_target_offset);
- FLAC__ASSERT(ftell(iterator->file) + (long)iterator->length == debug_target_offset);
+ FLAC__ASSERT(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length == debug_target_offset);
+ FLAC__ASSERT(ftello(iterator->file) + (FLAC__off_t)iterator->length == debug_target_offset);
return ret;
}
}
} FLAC__Metadata_Node;
struct FLAC__Metadata_Chain {
- char *filename;
+ char *filename; /* will be NULL if using callbacks */
+ FLAC__bool is_ogg;
FLAC__Metadata_Node *head;
FLAC__Metadata_Node *tail;
unsigned nodes;
FLAC__Metadata_ChainStatus status;
- long first_offset, last_offset; /*@@@ 2G limit */
+ FLAC__off_t first_offset, last_offset;
/*
* This is the length of the chain initially read from the FLAC file.
* it is used to compare against the current length to decide whether
* or not the whole file has to be rewritten.
*/
- unsigned initial_length; /*@@@ 4G limit */
+ FLAC__off_t initial_length;
+ /* @@@ hacky, these are currently only needed by ogg reader */
+ FLAC__IOHandle handle;
+ FLAC__IOCallback_Read read_cb;
};
struct FLAC__Metadata_Iterator {
"FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR",
"FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR",
"FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR",
- "FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR"
+ "FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR",
+ "FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS",
+ "FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH",
+ "FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL"
};
-static FLAC__Metadata_Node *node_new_()
+static FLAC__Metadata_Node *node_new_(void)
{
- return (FLAC__Metadata_Node*)calloc(1, sizeof(FLAC__Metadata_Node));
+ return calloc(1, sizeof(FLAC__Metadata_Node));
}
static void node_delete_(FLAC__Metadata_Node *node)
free(node);
}
+static void chain_init_(FLAC__Metadata_Chain *chain)
+{
+ FLAC__ASSERT(0 != chain);
+
+ chain->filename = 0;
+ chain->is_ogg = false;
+ chain->head = chain->tail = 0;
+ chain->nodes = 0;
+ chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
+ chain->initial_length = 0;
+ chain->read_cb = 0;
+}
+
+static void chain_clear_(FLAC__Metadata_Chain *chain)
+{
+ FLAC__Metadata_Node *node, *next;
+
+ FLAC__ASSERT(0 != chain);
+
+ for(node = chain->head; node; ) {
+ next = node->next;
+ node_delete_(node);
+ node = next;
+ }
+
+ if(0 != chain->filename)
+ free(chain->filename);
+
+ chain_init_(chain);
+}
+
static void chain_append_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
{
FLAC__ASSERT(0 != chain);
node_delete_(node);
}
-static unsigned chain_calculate_length_(FLAC__Metadata_Chain *chain)
+static FLAC__off_t chain_calculate_length_(FLAC__Metadata_Chain *chain)
{
const FLAC__Metadata_Node *node;
- unsigned length = 0;
+ FLAC__off_t length = 0;
for(node = chain->head; node; node = node->next)
length += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
return length;
return false;
}
-FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new()
-{
- FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)calloc(1, sizeof(FLAC__Metadata_Chain));
-
- if(0 != chain) {
- chain->filename = 0;
- chain->head = chain->tail = 0;
- chain->nodes = 0;
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- chain->initial_length = 0;
- }
-
- return chain;
-}
-
-FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node, *next;
-
- FLAC__ASSERT(0 != chain);
-
- for(node = chain->head; node; ) {
- next = node->next;
- node_delete_(node);
- node = next;
- }
-
- if(0 != chain->filename)
- free(chain->filename);
-
- free(chain);
-}
-
-FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_ChainStatus status;
-
- FLAC__ASSERT(0 != chain);
-
- status = chain->status;
- chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
- return status;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename)
-{
- FLAC__Metadata_SimpleIterator *iterator;
- FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != filename);
-
- if(0 == (chain->filename = strdup(filename))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- if(0 == (iterator = FLAC__metadata_simple_iterator_new())) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
-
- if(!FLAC__metadata_simple_iterator_init(iterator, filename, /*read_only=*/true, /*preserve_file_stats=*/false)) {
- chain->status = get_equivalent_status_(iterator->status);
- return false;
- }
-
- chain->first_offset = iterator->offset[iterator->depth];
-
- do {
- node = node_new_();
- if(0 == node) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
- }
- node->data = FLAC__metadata_simple_iterator_get_block(iterator);
- if(0 == node->data) {
- node_delete_(node);
- chain->status = get_equivalent_status_(iterator->status);
- return false;
- }
- chain_append_node_(chain, node);
- } while(FLAC__metadata_simple_iterator_next(iterator));
-
- if(!iterator->is_last || iterator->status != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK) {
- chain->status = get_equivalent_status_(iterator->status);
- return false;
- }
-
- chain->last_offset = ftell(iterator->file) + iterator->length;
- FLAC__metadata_simple_iterator_delete(iterator);
-
- chain->initial_length = chain_calculate_length_(chain);
- return true;
-}
-
-FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats)
+/* Returns the new length of the chain, or 0 if there was an error. */
+/* WATCHOUT: This can get called multiple times before a write, so
+ * it should still work when this happens.
+ */
+/* WATCHOUT: Make sure to also update the logic in
+ * FLAC__metadata_chain_check_if_tempfile_needed() if the logic here changes.
+ */
+static FLAC__off_t chain_prepare_for_write_(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
{
- struct stat stats;
- const char *tempfile_path_prefix = 0;
- unsigned current_length;
-
- FLAC__ASSERT(0 != chain);
-
- current_length = chain_calculate_length_(chain);
+ FLAC__off_t current_length = chain_calculate_length_(chain);
if(use_padding) {
+ /* if the metadata shrank and the last block is padding, we just extend the last padding block */
if(current_length < chain->initial_length && chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
- const unsigned delta = chain->initial_length - current_length;
+ const FLAC__off_t delta = chain->initial_length - current_length;
chain->tail->data->length += delta;
current_length += delta;
FLAC__ASSERT(current_length == chain->initial_length);
}
- else if(current_length + FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length) {
+ /* if the metadata shrank more than 4 bytes then there's room to add another padding block */
+ else if(current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length) {
FLAC__StreamMetadata *padding;
FLAC__Metadata_Node *node;
if(0 == (padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING))) {
chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
+ return 0;
}
padding->length = chain->initial_length - (FLAC__STREAM_METADATA_HEADER_LENGTH + current_length);
if(0 == (node = node_new_())) {
FLAC__metadata_object_delete(padding);
chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
- return false;
+ return 0;
}
node->data = padding;
chain_append_node_(chain, node);
current_length = chain_calculate_length_(chain);
FLAC__ASSERT(current_length == chain->initial_length);
}
+ /* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
else if(current_length > chain->initial_length) {
- const unsigned delta = current_length - chain->initial_length;
+ const FLAC__off_t delta = current_length - chain->initial_length;
if(chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
- if(chain->tail->data->length + FLAC__STREAM_METADATA_HEADER_LENGTH == delta) {
+ /* if the delta is exactly the size of the last padding block, remove the padding block */
+ if((FLAC__off_t)chain->tail->data->length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta) {
chain_delete_node_(chain, chain->tail);
current_length = chain_calculate_length_(chain);
FLAC__ASSERT(current_length == chain->initial_length);
}
- else if(chain->tail->data->length >= delta) {
+ /* if there is at least 'delta' bytes of padding, trim the padding down */
+ else if((FLAC__off_t)chain->tail->data->length >= delta) {
chain->tail->data->length -= delta;
current_length -= delta;
FLAC__ASSERT(current_length == chain->initial_length);
}
}
- if(preserve_file_stats)
- get_file_stats_(chain->filename, &stats);
-
- if(current_length == chain->initial_length) {
- if(!chain_rewrite_chain_(chain))
- return false;
- }
- else {
- if(!chain_rewrite_file_(chain, tempfile_path_prefix))
- return false;
- }
-
- if(preserve_file_stats)
- set_file_stats_(chain->filename, &stats);
-
- /* recompute lengths and offsets if necessary */
- if(chain->initial_length != current_length) {
- const FLAC__Metadata_Node *node;
- chain->initial_length = current_length;
- chain->last_offset = chain->first_offset;
- for(node = chain->head; node; node = node->next)
- chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
- }
-
- return true;
+ return current_length;
}
-FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain)
+static FLAC__bool chain_read_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Tell tell_cb)
{
FLAC__Metadata_Node *node;
FLAC__ASSERT(0 != chain);
- for(node = chain->head; node; ) {
- if(!chain_merge_adjacent_padding_(chain, node))
- node = node->next;
+ /* we assume we're already at the beginning of the file */
+
+ switch(seek_to_first_metadata_block_cb_(handle, read_cb, seek_cb)) {
+ case 0:
+ break;
+ case 1:
+ chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+ return false;
+ case 2:
+ chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+ return false;
+ case 3:
+ chain->status = FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE;
+ return false;
+ default:
+ FLAC__ASSERT(0);
+ return false;
}
-}
-FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain)
-{
- FLAC__Metadata_Node *node, *save;
- unsigned i;
+ {
+ FLAC__int64 pos = tell_cb(handle);
+ if(pos < 0) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+ return false;
+ }
+ chain->first_offset = (FLAC__off_t)pos;
+ }
- FLAC__ASSERT(0 != chain);
+ {
+ FLAC__bool is_last;
+ FLAC__MetadataType type;
+ unsigned length;
- /*
- * Don't try and be too smart... this simple algo is good enough for
+ do {
+ node = node_new_();
+ if(0 == node) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+
+ if(!read_metadata_block_header_cb_(handle, read_cb, &is_last, &type, &length)) {
+ node_delete_(node);
+ chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+ return false;
+ }
+
+ node->data = FLAC__metadata_object_new(type);
+ if(0 == node->data) {
+ node_delete_(node);
+ chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+
+ node->data->is_last = is_last;
+ node->data->length = length;
+
+ chain->status = get_equivalent_status_(read_metadata_block_data_cb_(handle, read_cb, seek_cb, node->data));
+ if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
+ node_delete_(node);
+ return false;
+ }
+ chain_append_node_(chain, node);
+ } while(!is_last);
+ }
+
+ {
+ FLAC__int64 pos = tell_cb(handle);
+ if(pos < 0) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+ return false;
+ }
+ chain->last_offset = (FLAC__off_t)pos;
+ }
+
+ chain->initial_length = chain_calculate_length_(chain);
+
+ return true;
+}
+
+static FLAC__StreamDecoderReadStatus chain_read_ogg_read_cb_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+{
+ FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
+ (void)decoder;
+ if(*bytes > 0 && chain->status == FLAC__METADATA_CHAIN_STATUS_OK) {
+ *bytes = chain->read_cb(buffer, sizeof(FLAC__byte), *bytes, chain->handle);
+ if(*bytes == 0)
+ return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+ else
+ return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+ }
+ else
+ return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+}
+
+static FLAC__StreamDecoderWriteStatus chain_read_ogg_write_cb_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+ (void)decoder, (void)frame, (void)buffer, (void)client_data;
+ return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+}
+
+static void chain_read_ogg_metadata_cb_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+ FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
+ FLAC__Metadata_Node *node;
+
+ (void)decoder;
+
+ node = node_new_();
+ if(0 == node) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+
+ node->data = FLAC__metadata_object_clone(metadata);
+ if(0 == node->data) {
+ node_delete_(node);
+ chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+
+ chain_append_node_(chain, node);
+}
+
+static void chain_read_ogg_error_cb_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+ FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
+ (void)decoder, (void)status;
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
+}
+
+static FLAC__bool chain_read_ogg_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb)
+{
+ FLAC__StreamDecoder *decoder;
+
+ FLAC__ASSERT(0 != chain);
+
+ /* we assume we're already at the beginning of the file */
+
+ chain->handle = handle;
+ chain->read_cb = read_cb;
+ if(0 == (decoder = FLAC__stream_decoder_new())) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+ FLAC__stream_decoder_set_metadata_respond_all(decoder);
+ if(FLAC__stream_decoder_init_ogg_stream(decoder, chain_read_ogg_read_cb_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, chain_read_ogg_write_cb_, chain_read_ogg_metadata_cb_, chain_read_ogg_error_cb_, chain) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
+ FLAC__stream_decoder_delete(decoder);
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
+ return false;
+ }
+
+ chain->first_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
+
+ if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder))
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
+ if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
+ FLAC__stream_decoder_delete(decoder);
+ return false;
+ }
+
+ FLAC__stream_decoder_delete(decoder);
+
+ chain->last_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
+
+ chain->initial_length = chain_calculate_length_(chain);
+
+ return true;
+}
+
+static FLAC__bool chain_rewrite_metadata_in_place_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, FLAC__IOCallback_Seek seek_cb)
+{
+ FLAC__Metadata_Node *node;
+
+ FLAC__ASSERT(0 != chain);
+ FLAC__ASSERT(0 != chain->head);
+
+ if(0 != seek_cb(handle, chain->first_offset, SEEK_SET)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+ return false;
+ }
+
+ for(node = chain->head; node; node = node->next) {
+ if(!write_metadata_block_header_cb_(handle, write_cb, node->data)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+ return false;
+ }
+ if(!write_metadata_block_data_cb_(handle, write_cb, node->data)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+ return false;
+ }
+ }
+
+ /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
+
+ chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
+ return true;
+}
+
+static FLAC__bool chain_rewrite_metadata_in_place_(FLAC__Metadata_Chain *chain)
+{
+ FILE *file;
+ FLAC__bool ret;
+
+ FLAC__ASSERT(0 != chain->filename);
+
+ if(0 == (file = fopen(chain->filename, "r+b"))) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
+ return false;
+ }
+
+ /* chain_rewrite_metadata_in_place_cb_() sets chain->status for us */
+ ret = chain_rewrite_metadata_in_place_cb_(chain, (FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, fseek_wrapper_);
+
+ fclose(file);
+
+ return ret;
+}
+
+static FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *tempfile_path_prefix)
+{
+ FILE *f, *tempfile = NULL;
+ char *tempfilename;
+ FLAC__Metadata_SimpleIteratorStatus status;
+ const FLAC__Metadata_Node *node;
+
+ FLAC__ASSERT(0 != chain);
+ FLAC__ASSERT(0 != chain->filename);
+ FLAC__ASSERT(0 != chain->head);
+
+ /* copy the file prefix (data up to first metadata block */
+ if(0 == (f = fopen(chain->filename, "rb"))) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
+ return false;
+ }
+ if(!open_tempfile_(chain->filename, tempfile_path_prefix, &tempfile, &tempfilename, &status)) {
+ chain->status = get_equivalent_status_(status);
+ goto err;
+ }
+ if(!copy_n_bytes_from_file_(f, tempfile, chain->first_offset, &status)) {
+ chain->status = get_equivalent_status_(status);
+ goto err;
+ }
+
+ /* write the metadata */
+ for(node = chain->head; node; node = node->next) {
+ if(!write_metadata_block_header_(tempfile, &status, node->data)) {
+ chain->status = get_equivalent_status_(status);
+ goto err;
+ }
+ if(!write_metadata_block_data_(tempfile, &status, node->data)) {
+ chain->status = get_equivalent_status_(status);
+ goto err;
+ }
+ }
+ /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
+
+ /* copy the file postfix (everything after the metadata) */
+ if(0 != fseeko(f, chain->last_offset, SEEK_SET)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+ goto err;
+ }
+ if(!copy_remaining_bytes_from_file_(f, tempfile, &status)) {
+ chain->status = get_equivalent_status_(status);
+ goto err;
+ }
+
+ /* move the tempfile on top of the original */
+ (void)fclose(f);
+ if(!transport_tempfile_(chain->filename, &tempfile, &tempfilename, &status))
+ return false;
+
+ return true;
+
+err:
+ (void)fclose(f);
+ cleanup_tempfile_(&tempfile, &tempfilename);
+ return false;
+}
+
+/* assumes 'handle' is already at beginning of file */
+static FLAC__bool chain_rewrite_file_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb)
+{
+ FLAC__Metadata_SimpleIteratorStatus status;
+ const FLAC__Metadata_Node *node;
+
+ FLAC__ASSERT(0 != chain);
+ FLAC__ASSERT(0 == chain->filename);
+ FLAC__ASSERT(0 != chain->head);
+
+ /* copy the file prefix (data up to first metadata block */
+ if(!copy_n_bytes_from_file_cb_(handle, read_cb, temp_handle, temp_write_cb, chain->first_offset, &status)) {
+ chain->status = get_equivalent_status_(status);
+ return false;
+ }
+
+ /* write the metadata */
+ for(node = chain->head; node; node = node->next) {
+ if(!write_metadata_block_header_cb_(temp_handle, temp_write_cb, node->data)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+ return false;
+ }
+ if(!write_metadata_block_data_cb_(temp_handle, temp_write_cb, node->data)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+ return false;
+ }
+ }
+ /*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
+
+ /* copy the file postfix (everything after the metadata) */
+ if(0 != seek_cb(handle, chain->last_offset, SEEK_SET)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+ return false;
+ }
+ if(!copy_remaining_bytes_from_file_cb_(handle, read_cb, eof_cb, temp_handle, temp_write_cb, &status)) {
+ chain->status = get_equivalent_status_(status);
+ return false;
+ }
+
+ return true;
+}
+
+FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new(void)
+{
+ FLAC__Metadata_Chain *chain = calloc(1, sizeof(FLAC__Metadata_Chain));
+
+ if(0 != chain)
+ chain_init_(chain);
+
+ return chain;
+}
+
+FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain)
+{
+ FLAC__ASSERT(0 != chain);
+
+ chain_clear_(chain);
+
+ free(chain);
+}
+
+FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain)
+{
+ FLAC__Metadata_ChainStatus status;
+
+ FLAC__ASSERT(0 != chain);
+
+ status = chain->status;
+ chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
+ return status;
+}
+
+static FLAC__bool chain_read_(FLAC__Metadata_Chain *chain, const char *filename, FLAC__bool is_ogg)
+{
+ FILE *file;
+ FLAC__bool ret;
+
+ FLAC__ASSERT(0 != chain);
+ FLAC__ASSERT(0 != filename);
+
+ chain_clear_(chain);
+
+ if(0 == (chain->filename = strdup(filename))) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+ return false;
+ }
+
+ chain->is_ogg = is_ogg;
+
+ if(0 == (file = fopen(filename, "rb"))) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
+ return false;
+ }
+
+ /* the function also sets chain->status for us */
+ ret = is_ogg?
+ chain_read_ogg_cb_(chain, file, (FLAC__IOCallback_Read)fread) :
+ chain_read_cb_(chain, file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, ftell_wrapper_)
+ ;
+
+ fclose(file);
+
+ return ret;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename)
+{
+ return chain_read_(chain, filename, /*is_ogg=*/false);
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg(FLAC__Metadata_Chain *chain, const char *filename)
+{
+ return chain_read_(chain, filename, /*is_ogg=*/true);
+}
+
+static FLAC__bool chain_read_with_callbacks_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__bool is_ogg)
+{
+ FLAC__bool ret;
+
+ FLAC__ASSERT(0 != chain);
+
+ chain_clear_(chain);
+
+ if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.tell) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+ return false;
+ }
+
+ chain->is_ogg = is_ogg;
+
+ /* rewind */
+ if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+ return false;
+ }
+
+ /* the function also sets chain->status for us */
+ ret = is_ogg?
+ chain_read_ogg_cb_(chain, handle, callbacks.read) :
+ chain_read_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.tell)
+ ;
+
+ return ret;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_read_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
+{
+ return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/false);
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
+{
+ return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/true);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_check_if_tempfile_needed(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
+{
+ /* This does all the same checks that are in chain_prepare_for_write_()
+ * but doesn't actually alter the chain. Make sure to update the logic
+ * here if chain_prepare_for_write_() changes.
+ */
+ const FLAC__off_t current_length = chain_calculate_length_(chain);
+
+ FLAC__ASSERT(0 != chain);
+
+ if(use_padding) {
+ /* if the metadata shrank and the last block is padding, we just extend the last padding block */
+ if(current_length < chain->initial_length && chain->tail->data->type == FLAC__METADATA_TYPE_PADDING)
+ return false;
+ /* if the metadata shrank more than 4 bytes then there's room to add another padding block */
+ else if(current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length)
+ return false;
+ /* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
+ else if(current_length > chain->initial_length) {
+ const FLAC__off_t delta = current_length - chain->initial_length;
+ if(chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
+ /* if the delta is exactly the size of the last padding block, remove the padding block */
+ if((FLAC__off_t)chain->tail->data->length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta)
+ return false;
+ /* if there is at least 'delta' bytes of padding, trim the padding down */
+ else if((FLAC__off_t)chain->tail->data->length >= delta)
+ return false;
+ }
+ }
+ }
+
+ return (current_length != chain->initial_length);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats)
+{
+ struct stat stats;
+ const char *tempfile_path_prefix = 0;
+ FLAC__off_t current_length;
+
+ FLAC__ASSERT(0 != chain);
+
+ if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
+ return false;
+ }
+
+ if (0 == chain->filename) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
+ return false;
+ }
+
+ current_length = chain_prepare_for_write_(chain, use_padding);
+
+ /* a return value of 0 means there was an error; chain->status is already set */
+ if (0 == current_length)
+ return false;
+
+ if(preserve_file_stats)
+ get_file_stats_(chain->filename, &stats);
+
+ if(current_length == chain->initial_length) {
+ if(!chain_rewrite_metadata_in_place_(chain))
+ return false;
+ }
+ else {
+ if(!chain_rewrite_file_(chain, tempfile_path_prefix))
+ return false;
+
+ /* recompute lengths and offsets */
+ {
+ const FLAC__Metadata_Node *node;
+ chain->initial_length = current_length;
+ chain->last_offset = chain->first_offset;
+ for(node = chain->head; node; node = node->next)
+ chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
+ }
+ }
+
+ if(preserve_file_stats)
+ set_file_stats_(chain->filename, &stats);
+
+ return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
+{
+ FLAC__off_t current_length;
+
+ FLAC__ASSERT(0 != chain);
+
+ if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
+ return false;
+ }
+
+ if (0 != chain->filename) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
+ return false;
+ }
+
+ if (0 == callbacks.write || 0 == callbacks.seek) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+ return false;
+ }
+
+ if (FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
+ return false;
+ }
+
+ current_length = chain_prepare_for_write_(chain, use_padding);
+
+ /* a return value of 0 means there was an error; chain->status is already set */
+ if (0 == current_length)
+ return false;
+
+ FLAC__ASSERT(current_length == chain->initial_length);
+
+ return chain_rewrite_metadata_in_place_cb_(chain, handle, callbacks.write, callbacks.seek);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks_and_tempfile(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__IOHandle temp_handle, FLAC__IOCallbacks temp_callbacks)
+{
+ FLAC__off_t current_length;
+
+ FLAC__ASSERT(0 != chain);
+
+ if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
+ return false;
+ }
+
+ if (0 != chain->filename) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
+ return false;
+ }
+
+ if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.eof) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+ return false;
+ }
+ if (0 == temp_callbacks.write) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+ return false;
+ }
+
+ if (!FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
+ return false;
+ }
+
+ current_length = chain_prepare_for_write_(chain, use_padding);
+
+ /* a return value of 0 means there was an error; chain->status is already set */
+ if (0 == current_length)
+ return false;
+
+ FLAC__ASSERT(current_length != chain->initial_length);
+
+ /* rewind */
+ if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
+ chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+ return false;
+ }
+
+ if(!chain_rewrite_file_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.eof, temp_handle, temp_callbacks.write))
+ return false;
+
+ /* recompute lengths and offsets */
+ {
+ const FLAC__Metadata_Node *node;
+ chain->initial_length = current_length;
+ chain->last_offset = chain->first_offset;
+ for(node = chain->head; node; node = node->next)
+ chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
+ }
+
+ return true;
+}
+
+FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain)
+{
+ FLAC__Metadata_Node *node;
+
+ FLAC__ASSERT(0 != chain);
+
+ for(node = chain->head; node; ) {
+ if(!chain_merge_adjacent_padding_(chain, node))
+ node = node->next;
+ }
+}
+
+FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain)
+{
+ FLAC__Metadata_Node *node, *save;
+ unsigned i;
+
+ FLAC__ASSERT(0 != chain);
+
+ /*
+ * Don't try and be too smart... this simple algo is good enough for
* the small number of nodes that we deal with.
*/
for(i = 0, node = chain->head; i < chain->nodes; i++) {
}
-FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new()
+FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new(void)
{
- FLAC__Metadata_Iterator *iterator = (FLAC__Metadata_Iterator*)calloc(1, sizeof(FLAC__Metadata_Iterator));
+ FLAC__Metadata_Iterator *iterator = calloc(1, sizeof(FLAC__Metadata_Iterator));
/* calloc() implies:
iterator->current = 0;
FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator)
{
- FLAC__byte raw_header[FLAC__STREAM_METADATA_HEADER_LENGTH];
-
FLAC__ASSERT(0 != iterator);
FLAC__ASSERT(0 != iterator->file);
- if(fread(raw_header, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, iterator->file) != FLAC__STREAM_METADATA_HEADER_LENGTH) {
+ if(!read_metadata_block_header_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, &iterator->is_last, &iterator->type, &iterator->length)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
return false;
}
- iterator->is_last = raw_header[0] & 0x80? true : false;
- iterator->type = (FLAC__MetadataType)(raw_header[0] & 0x7f);
- iterator->length = unpack_uint32_(raw_header + 1, 3);
+ return true;
+}
+
+FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block)
+{
+ FLAC__ASSERT(0 != iterator);
+ FLAC__ASSERT(0 != iterator->file);
+
+ iterator->status = read_metadata_block_data_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, block);
+
+ return (iterator->status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK);
+}
+
+FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, unsigned *length)
+{
+ FLAC__byte raw_header[FLAC__STREAM_METADATA_HEADER_LENGTH];
+
+ if(read_cb(raw_header, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
+ return false;
+
+ *is_last = raw_header[0] & 0x80? true : false;
+ *type = (FLAC__MetadataType)(raw_header[0] & 0x7f);
+ *length = unpack_uint32_(raw_header + 1, 3);
/* Note that we don't check:
* if(iterator->type >= FLAC__METADATA_TYPE_UNDEFINED)
return true;
}
-FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block)
{
- FLAC__ASSERT(0 != iterator);
- FLAC__ASSERT(0 != iterator->file);
-
switch(block->type) {
case FLAC__METADATA_TYPE_STREAMINFO:
- iterator->status = read_metadata_block_data_streaminfo_(iterator->file, &block->data.stream_info);
- break;
+ return read_metadata_block_data_streaminfo_cb_(handle, read_cb, &block->data.stream_info);
case FLAC__METADATA_TYPE_PADDING:
- iterator->status = read_metadata_block_data_padding_(iterator->file, &block->data.padding, block->length);
- break;
+ return read_metadata_block_data_padding_cb_(handle, seek_cb, &block->data.padding, block->length);
case FLAC__METADATA_TYPE_APPLICATION:
- iterator->status = read_metadata_block_data_application_(iterator->file, &block->data.application, block->length);
- break;
+ return read_metadata_block_data_application_cb_(handle, read_cb, &block->data.application, block->length);
case FLAC__METADATA_TYPE_SEEKTABLE:
- iterator->status = read_metadata_block_data_seektable_(iterator->file, &block->data.seek_table, block->length);
- break;
+ return read_metadata_block_data_seektable_cb_(handle, read_cb, &block->data.seek_table, block->length);
case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- iterator->status = read_metadata_block_data_vorbis_comment_(iterator->file, &block->data.vorbis_comment);
- break;
+ return read_metadata_block_data_vorbis_comment_cb_(handle, read_cb, &block->data.vorbis_comment);
case FLAC__METADATA_TYPE_CUESHEET:
- iterator->status = read_metadata_block_data_cuesheet_(iterator->file, &block->data.cue_sheet);
- break;
+ return read_metadata_block_data_cuesheet_cb_(handle, read_cb, &block->data.cue_sheet);
+ case FLAC__METADATA_TYPE_PICTURE:
+ return read_metadata_block_data_picture_cb_(handle, read_cb, &block->data.picture);
default:
- iterator->status = read_metadata_block_data_unknown_(iterator->file, &block->data.unknown, block->length);
- break;
+ return read_metadata_block_data_unknown_cb_(handle, read_cb, &block->data.unknown, block->length);
}
-
- return (iterator->status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK);
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_(FILE *file, FLAC__StreamMetadata_StreamInfo *block)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block)
{
FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH], *b;
- FLAC__ASSERT(0 != file);
-
- if(fread(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, file) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
+ if(read_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
b = buffer;
- /* @@@ we are using hardcoded numbers for simplicity but we should
+ /* we are using hardcoded numbers for simplicity but we should
* probably eventually write a bit-level unpacker and use the
* _STREAMINFO_ constants.
*/
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_(FILE *file, FLAC__StreamMetadata_Padding *block, unsigned block_length)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, unsigned block_length)
{
- FLAC__ASSERT(0 != file);
-
(void)block; /* nothing to do; we don't care about reading the padding bytes */
- if(0 != fseek(file, block_length, SEEK_CUR))
+ if(0 != seek_cb(handle, block_length, SEEK_CUR))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_(FILE *file, FLAC__StreamMetadata_Application *block, unsigned block_length)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, unsigned block_length)
{
const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
- FLAC__ASSERT(0 != file);
+ if(read_cb(block->id, 1, id_bytes, handle) != id_bytes)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- if(fread(block->id, 1, id_bytes, file) != id_bytes)
+ if(block_length < id_bytes)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
block_length -= id_bytes;
block->data = 0;
}
else {
- if(0 == (block->data = (FLAC__byte*)malloc(block_length)))
+ if(0 == (block->data = malloc(block_length)))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- if(fread(block->data, 1, block_length, file) != block_length)
+ if(read_cb(block->data, 1, block_length, handle) != block_length)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
}
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_(FILE *file, FLAC__StreamMetadata_SeekTable *block, unsigned block_length)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, unsigned block_length)
{
unsigned i;
FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
- FLAC__ASSERT(0 != file);
FLAC__ASSERT(block_length % FLAC__STREAM_METADATA_SEEKPOINT_LENGTH == 0);
block->num_points = block_length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
if(block->num_points == 0)
block->points = 0;
- else if(0 == (block->points = (FLAC__StreamMetadata_SeekPoint*)malloc(block->num_points * sizeof(FLAC__StreamMetadata_SeekPoint))))
+ else if(0 == (block->points = safe_malloc_mul_2op_p(block->num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint))))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
for(i = 0; i < block->num_points; i++) {
- if(fread(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, file) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
+ if(read_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
- /*@@@ some MAGIC NUMBERs here */
+ /* some MAGIC NUMBERs here */
block->points[i].sample_number = unpack_uint64_(buffer, 8);
block->points[i].stream_offset = unpack_uint64_(buffer+8, 8);
block->points[i].frame_samples = unpack_uint32_(buffer+16, 2);
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_(FILE *file, FLAC__StreamMetadata_VorbisComment_Entry *entry)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry)
{
const unsigned entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
FLAC__byte buffer[4]; /* magic number is asserted below */
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8 == 4);
- FLAC__ASSERT(0 != file);
+ FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8 == sizeof(buffer));
- if(fread(buffer, 1, entry_length_len, file) != entry_length_len)
+ if(read_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
entry->length = unpack_uint32_little_endian_(buffer, entry_length_len);
entry->entry = 0;
}
else {
- if(0 == (entry->entry = (FLAC__byte*)malloc(entry->length)))
+ if(0 == (entry->entry = safe_malloc_add_2op_(entry->length, /*+*/1)))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- if(fread(entry->entry, 1, entry->length, file) != entry->length)
+ if(read_cb(entry->entry, 1, entry->length, handle) != entry->length)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+
+ entry->entry[entry->length] = '\0';
}
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_(FILE *file, FLAC__StreamMetadata_VorbisComment *block)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment *block)
{
unsigned i;
FLAC__Metadata_SimpleIteratorStatus status;
const unsigned num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
FLAC__byte buffer[4]; /* magic number is asserted below */
- FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8 == 4);
- FLAC__ASSERT(0 != file);
+ FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8 == sizeof(buffer));
- if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_vorbis_comment_entry_(file, &(block->vendor_string))))
+ if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, &(block->vendor_string))))
return status;
- if(fread(buffer, 1, num_comments_len, file) != num_comments_len)
+ if(read_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
block->num_comments = unpack_uint32_little_endian_(buffer, num_comments_len);
if(block->num_comments == 0) {
block->comments = 0;
}
- else if(0 == (block->comments = (FLAC__StreamMetadata_VorbisComment_Entry*)calloc(block->num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry))))
+ else if(0 == (block->comments = calloc(block->num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry))))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
for(i = 0; i < block->num_comments; i++) {
- if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_vorbis_comment_entry_(file, block->comments + i)))
+ if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, block->comments + i)))
return status;
}
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_(FILE *file, FLAC__StreamMetadata_CueSheet_Track *track)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track)
{
unsigned i, len;
FLAC__byte buffer[32]; /* asserted below that this is big enough */
FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8);
- FLAC__ASSERT(0 != file);
-
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
track->offset = unpack_uint64_(buffer, len);
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
track->number = (FLAC__byte)unpack_uint32_(buffer, len);
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
- if(fread(track->isrc, 1, len, file) != len)
+ if(read_cb(track->isrc, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN == 1);
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN == 1);
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
track->num_indices = (FLAC__byte)unpack_uint32_(buffer, len);
if(track->num_indices == 0) {
track->indices = 0;
}
- else if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)calloc(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index))))
+ else if(0 == (track->indices = calloc(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index))))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
for(i = 0; i < track->num_indices; i++) {
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
track->indices[i].offset = unpack_uint64_(buffer, len);
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
track->indices[i].number = (FLAC__byte)unpack_uint32_(buffer, len);
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
}
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_(FILE *file, FLAC__StreamMetadata_CueSheet *block)
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block)
{
unsigned i, len;
FLAC__Metadata_SimpleIteratorStatus status;
FLAC__byte buffer[1024]; /* MSVC needs a constant expression so we put a magic number and assert */
- FLAC__ASSERT(0 != file);
FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN)/8 <= sizeof(buffer));
FLAC__ASSERT(sizeof(FLAC__uint64) <= sizeof(buffer));
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
- if(fread(block->media_catalog_number, 1, len, file) != len)
+ if(read_cb(block->media_catalog_number, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
block->lead_in = unpack_uint64_(buffer, len);
FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
block->is_cd = buffer[0]&0x80? true : false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
- if(fread(buffer, 1, len, file) != len)
+ if(read_cb(buffer, 1, len, handle) != len)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
block->num_tracks = unpack_uint32_(buffer, len);
if(block->num_tracks == 0) {
block->tracks = 0;
}
- else if(0 == (block->tracks = (FLAC__StreamMetadata_CueSheet_Track*)calloc(block->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track))))
+ else if(0 == (block->tracks = calloc(block->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track))))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
for(i = 0; i < block->num_tracks; i++) {
- if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_cuesheet_track_(file, block->tracks + i)))
+ if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_cuesheet_track_cb_(handle, read_cb, block->tracks + i)))
return status;
}
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
}
-FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_(FILE *file, FLAC__StreamMetadata_Unknown *block, unsigned block_length)
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cstring_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__byte **data, FLAC__uint32 *length, FLAC__uint32 length_len)
{
- FLAC__ASSERT(0 != file);
+ FLAC__byte buffer[sizeof(FLAC__uint32)];
+
+ FLAC__ASSERT(0 != data);
+ FLAC__ASSERT(length_len%8 == 0);
+
+ length_len /= 8; /* convert to bytes */
+
+ FLAC__ASSERT(sizeof(buffer) >= length_len);
+
+ if(read_cb(buffer, 1, length_len, handle) != length_len)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ *length = unpack_uint32_(buffer, length_len);
+
+ if(0 != *data)
+ free(*data);
+
+ if(0 == (*data = safe_malloc_add_2op_(*length, /*+*/1)))
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+ if(*length > 0) {
+ if(read_cb(*data, 1, *length, handle) != *length)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ }
+
+ (*data)[*length] = '\0';
+
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block)
+{
+ FLAC__Metadata_SimpleIteratorStatus status;
+ FLAC__byte buffer[4]; /* asserted below that this is big enough */
+ FLAC__uint32 len;
+
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
+
+ FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_TYPE_LEN % 8 == 0);
+ len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN / 8;
+ if(read_cb(buffer, 1, len, handle) != len)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ block->type = (FLAC__StreamMetadata_Picture_Type)unpack_uint32_(buffer, len);
+
+ if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, (FLAC__byte**)(&(block->mime_type)), &len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
+ return status;
+
+ if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->description), &len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
+ return status;
+
+ FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN % 8 == 0);
+ len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN / 8;
+ if(read_cb(buffer, 1, len, handle) != len)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ block->width = unpack_uint32_(buffer, len);
+
+ FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN % 8 == 0);
+ len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN / 8;
+ if(read_cb(buffer, 1, len, handle) != len)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ block->height = unpack_uint32_(buffer, len);
+
+ FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN % 8 == 0);
+ len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN / 8;
+ if(read_cb(buffer, 1, len, handle) != len)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ block->depth = unpack_uint32_(buffer, len);
+
+ FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_COLORS_LEN % 8 == 0);
+ len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN / 8;
+ if(read_cb(buffer, 1, len, handle) != len)
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ block->colors = unpack_uint32_(buffer, len);
+
+ /* for convenience we use read_metadata_block_data_picture_cstring_cb_() even though it adds an extra terminating NUL we don't use */
+ if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->data), &(block->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
+ return status;
+
+ return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, unsigned block_length)
+{
if(block_length == 0) {
block->data = 0;
}
else {
- if(0 == (block->data = (FLAC__byte*)malloc(block_length)))
+ if(0 == (block->data = malloc(block_length)))
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
- if(fread(block->data, 1, block_length, file) != block_length)
+ if(read_cb(block->data, 1, block_length, handle) != block_length)
return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
}
FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block)
{
- FLAC__byte buffer[FLAC__STREAM_METADATA_HEADER_LENGTH];
-
FLAC__ASSERT(0 != file);
FLAC__ASSERT(0 != status);
- FLAC__ASSERT(block->length < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
- buffer[0] = (block->is_last? 0x80 : 0) | (FLAC__byte)block->type;
- pack_uint32_(block->length, buffer + 1, 3);
-
- if(local__fwrite(buffer, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, file) != FLAC__STREAM_METADATA_HEADER_LENGTH) {
+ if(!write_metadata_block_header_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
return false;
}
FLAC__ASSERT(0 != file);
FLAC__ASSERT(0 != status);
+ if (write_metadata_block_data_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
+ *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ return true;
+ }
+ else {
+ *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ return false;
+ }
+}
+
+FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
+{
+ FLAC__byte buffer[FLAC__STREAM_METADATA_HEADER_LENGTH];
+
+ FLAC__ASSERT(block->length < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
+
+ buffer[0] = (block->is_last? 0x80 : 0) | (FLAC__byte)block->type;
+ pack_uint32_(block->length, buffer + 1, 3);
+
+ if(write_cb(buffer, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
+ return false;
+
+ return true;
+}
+
+FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
+{
+ FLAC__ASSERT(0 != block);
+
switch(block->type) {
case FLAC__METADATA_TYPE_STREAMINFO:
- *status = write_metadata_block_data_streaminfo_(file, &block->data.stream_info);
- break;
+ return write_metadata_block_data_streaminfo_cb_(handle, write_cb, &block->data.stream_info);
case FLAC__METADATA_TYPE_PADDING:
- *status = write_metadata_block_data_padding_(file, &block->data.padding, block->length);
- break;
+ return write_metadata_block_data_padding_cb_(handle, write_cb, &block->data.padding, block->length);
case FLAC__METADATA_TYPE_APPLICATION:
- *status = write_metadata_block_data_application_(file, &block->data.application, block->length);
- break;
+ return write_metadata_block_data_application_cb_(handle, write_cb, &block->data.application, block->length);
case FLAC__METADATA_TYPE_SEEKTABLE:
- *status = write_metadata_block_data_seektable_(file, &block->data.seek_table);
- break;
+ return write_metadata_block_data_seektable_cb_(handle, write_cb, &block->data.seek_table);
case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- *status = write_metadata_block_data_vorbis_comment_(file, &block->data.vorbis_comment);
- break;
+ return write_metadata_block_data_vorbis_comment_cb_(handle, write_cb, &block->data.vorbis_comment);
case FLAC__METADATA_TYPE_CUESHEET:
- *status = write_metadata_block_data_cuesheet_(file, &block->data.cue_sheet);
- break;
+ return write_metadata_block_data_cuesheet_cb_(handle, write_cb, &block->data.cue_sheet);
+ case FLAC__METADATA_TYPE_PICTURE:
+ return write_metadata_block_data_picture_cb_(handle, write_cb, &block->data.picture);
default:
- *status = write_metadata_block_data_unknown_(file, &block->data.unknown, block->length);
- break;
+ return write_metadata_block_data_unknown_cb_(handle, write_cb, &block->data.unknown, block->length);
}
- return (*status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK);
}
-FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_streaminfo_(FILE *file, const FLAC__StreamMetadata_StreamInfo *block)
+FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block)
{
FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH];
const unsigned channels1 = block->channels - 1;
const unsigned bps1 = block->bits_per_sample - 1;
- FLAC__ASSERT(0 != file);
-
- /* @@@ we are using hardcoded numbers for simplicity but we should
+ /* we are using hardcoded numbers for simplicity but we should
* probably eventually write a bit-level packer and use the
* _STREAMINFO_ constants.
*/
pack_uint32_((FLAC__uint32)block->total_samples, buffer+14, 4);
memcpy(buffer+18, block->md5sum, 16);
- if(local__fwrite(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, file) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
+ return false;
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ return true;
}
-FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_padding_(FILE *file, const FLAC__StreamMetadata_Padding *block, unsigned block_length)
+FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, unsigned block_length)
{
unsigned i, n = block_length;
FLAC__byte buffer[1024];
- FLAC__ASSERT(0 != file);
-
(void)block;
memset(buffer, 0, 1024);
for(i = 0; i < n/1024; i++)
- if(local__fwrite(buffer, 1, 1024, file) != 1024)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, 1024, handle) != 1024)
+ return false;
n %= 1024;
- if(local__fwrite(buffer, 1, n, file) != n)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, n, handle) != n)
+ return false;
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ return true;
}
-FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_application_(FILE *file, const FLAC__StreamMetadata_Application *block, unsigned block_length)
+FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, unsigned block_length)
{
const unsigned id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
- FLAC__ASSERT(0 != file);
-
- if(local__fwrite(block->id, 1, id_bytes, file) != id_bytes)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(block->id, 1, id_bytes, handle) != id_bytes)
+ return false;
block_length -= id_bytes;
- if(local__fwrite(block->data, 1, block_length, file) != block_length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(block->data, 1, block_length, handle) != block_length)
+ return false;
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ return true;
}
-FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_seektable_(FILE *file, const FLAC__StreamMetadata_SeekTable *block)
+FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block)
{
unsigned i;
FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
- FLAC__ASSERT(0 != file);
-
for(i = 0; i < block->num_points; i++) {
- /*@@@ some MAGIC NUMBERs here */
+ /* some MAGIC NUMBERs here */
pack_uint64_(block->points[i].sample_number, buffer, 8);
pack_uint64_(block->points[i].stream_offset, buffer+8, 8);
pack_uint32_(block->points[i].frame_samples, buffer+16, 2);
- if(local__fwrite(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, file) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
+ return false;
}
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ return true;
}
-FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_vorbis_comment_(FILE *file, const FLAC__StreamMetadata_VorbisComment *block)
+FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block)
{
unsigned i;
const unsigned entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
const unsigned num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
FLAC__byte buffer[4]; /* magic number is asserted below */
- FLAC__ASSERT(max(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN, FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8 == 4);
- FLAC__ASSERT(0 != file);
+ FLAC__ASSERT(flac_max(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN, FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8 == sizeof(buffer));
pack_uint32_little_endian_(block->vendor_string.length, buffer, entry_length_len);
- if(local__fwrite(buffer, 1, entry_length_len, file) != entry_length_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- if(local__fwrite(block->vendor_string.entry, 1, block->vendor_string.length, file) != block->vendor_string.length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
+ return false;
+ if(write_cb(block->vendor_string.entry, 1, block->vendor_string.length, handle) != block->vendor_string.length)
+ return false;
pack_uint32_little_endian_(block->num_comments, buffer, num_comments_len);
- if(local__fwrite(buffer, 1, num_comments_len, file) != num_comments_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
+ return false;
for(i = 0; i < block->num_comments; i++) {
pack_uint32_little_endian_(block->comments[i].length, buffer, entry_length_len);
- if(local__fwrite(buffer, 1, entry_length_len, file) != entry_length_len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
- if(local__fwrite(block->comments[i].entry, 1, block->comments[i].length, file) != block->comments[i].length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
+ return false;
+ if(write_cb(block->comments[i].entry, 1, block->comments[i].length, handle) != block->comments[i].length)
+ return false;
}
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ return true;
}
-FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_cuesheet_(FILE *file, const FLAC__StreamMetadata_CueSheet *block)
+FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block)
{
unsigned i, j, len;
FLAC__byte buffer[1024]; /* asserted below that this is big enough */
FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN)/8);
FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
- FLAC__ASSERT(0 != file);
-
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
- if(local__fwrite(block->media_catalog_number, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(block->media_catalog_number, 1, len, handle) != len)
+ return false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
pack_uint64_(block->lead_in, buffer, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
memset(buffer, 0, len);
if(block->is_cd)
buffer[0] |= 0x80;
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
pack_uint32_(block->num_tracks, buffer, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
for(i = 0; i < block->num_tracks; i++) {
FLAC__StreamMetadata_CueSheet_Track *track = block->tracks + i;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
pack_uint64_(track->offset, buffer, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
pack_uint32_(track->number, buffer, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
- if(local__fwrite(track->isrc, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(track->isrc, 1, len, handle) != len)
+ return false;
FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
memset(buffer, 0, len);
buffer[0] = (track->type << 7) | (track->pre_emphasis << 6);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
pack_uint32_(track->num_indices, buffer, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
for(j = 0; j < track->num_indices; j++) {
FLAC__StreamMetadata_CueSheet_Index *index = track->indices + j;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
pack_uint64_(index->offset, buffer, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
pack_uint32_(index->number, buffer, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
memset(buffer, 0, len);
- if(local__fwrite(buffer, 1, len, file) != len)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
}
}
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ return true;
}
-FLAC__Metadata_SimpleIteratorStatus write_metadata_block_data_unknown_(FILE *file, const FLAC__StreamMetadata_Unknown *block, unsigned block_length)
+FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block)
{
- FLAC__ASSERT(0 != file);
+ unsigned len;
+ size_t slen;
+ FLAC__byte buffer[4]; /* magic number is asserted below */
- if(local__fwrite(block->data, 1, block_length, file) != block_length)
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_TYPE_LEN%8);
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN%8);
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN%8);
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN%8);
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN%8);
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN%8);
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_COLORS_LEN%8);
+ FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN%8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
+ FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8);
+
+ len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8;
+ pack_uint32_(block->type, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
- return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+ len = FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8;
+ slen = strlen(block->mime_type);
+ pack_uint32_(slen, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
+ if(write_cb(block->mime_type, 1, slen, handle) != slen)
+ return false;
+
+ len = FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8;
+ slen = strlen((const char *)block->description);
+ pack_uint32_(slen, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
+ if(write_cb(block->description, 1, slen, handle) != slen)
+ return false;
+
+ len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8;
+ pack_uint32_(block->width, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
+
+ len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8;
+ pack_uint32_(block->height, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
+
+ len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8;
+ pack_uint32_(block->depth, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
+
+ len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8;
+ pack_uint32_(block->colors, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
+
+ len = FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8;
+ pack_uint32_(block->data_length, buffer, len);
+ if(write_cb(buffer, 1, len, handle) != len)
+ return false;
+ if(write_cb(block->data, 1, block->data_length, handle) != block->data_length)
+ return false;
+
+ return true;
+}
+
+FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, unsigned block_length)
+{
+ if(write_cb(block->data, 1, block_length, handle) != block_length)
+ return false;
+
+ return true;
}
FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block)
{
- if(0 != fseek(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+ if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
if(!write_metadata_block_data_(iterator->file, &iterator->status, block))
return false;
- if(0 != fseek(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+ if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
{
FLAC__StreamMetadata *padding;
- if(0 != fseek(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+ if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
FLAC__metadata_object_delete(padding);
- if(0 != fseek(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+ if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append)
{
- FILE *tempfile;
- char *tempfilename;
+ FILE *tempfile = NULL;
+ char *tempfilename = NULL;
int fixup_is_last_code = 0; /* 0 => no need to change any is_last flags */
- long fixup_is_last_flag_offset = -1;
+ FLAC__off_t fixup_is_last_flag_offset = -1;
FLAC__ASSERT(0 != block || append == false);
return true;
}
-FLAC__bool chain_rewrite_chain_(FLAC__Metadata_Chain *chain)
-{
- FILE *f;
- FLAC__Metadata_Node *node;
- FLAC__Metadata_SimpleIteratorStatus status;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->filename);
- FLAC__ASSERT(0 != chain->head);
-
- if(0 == (f = fopen(chain->filename, "r+b"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- if(0 != fseek(f, chain->first_offset, SEEK_SET)) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
-
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_(f, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
- if(!write_metadata_block_data_(f, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
- }
-
- /*FLAC__ASSERT(fflush(), ftell() == chain->last_offset);*/
-
- (void)fclose(f);
-
- return true;
-}
-
-FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *tempfile_path_prefix)
-{
- FILE *f, *tempfile;
- char *tempfilename;
- FLAC__Metadata_SimpleIteratorStatus status;
- const FLAC__Metadata_Node *node;
-
- FLAC__ASSERT(0 != chain);
- FLAC__ASSERT(0 != chain->filename);
- FLAC__ASSERT(0 != chain->head);
-
- /* copy the file prefix (data up to first metadata block */
- if(0 == (f = fopen(chain->filename, "rb"))) {
- chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
- return false;
- }
- if(!open_tempfile_(chain->filename, tempfile_path_prefix, &tempfile, &tempfilename, &status)) {
- chain->status = get_equivalent_status_(status);
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
- if(!copy_n_bytes_from_file_(f, tempfile, chain->first_offset, &status)) {
- chain->status = get_equivalent_status_(status);
- cleanup_tempfile_(&tempfile, &tempfilename);
- return false;
- }
-
- /* write the metadata */
- for(node = chain->head; node; node = node->next) {
- if(!write_metadata_block_header_(tempfile, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
- if(!write_metadata_block_data_(tempfile, &status, node->data)) {
- chain->status = get_equivalent_status_(status);
- return false;
- }
- }
- /*FLAC__ASSERT(fflush(), ftell() == chain->last_offset);*/
-
- /* copy the file postfix (everything after the metadata) */
- if(0 != fseek(f, chain->last_offset, SEEK_SET)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
- return false;
- }
- if(!copy_remaining_bytes_from_file_(f, tempfile, &status)) {
- cleanup_tempfile_(&tempfile, &tempfilename);
- chain->status = get_equivalent_status_(status);
- return false;
- }
-
- /* move the tempfile on top of the original */
- (void)fclose(f);
- if(!transport_tempfile_(chain->filename, &tempfile, &tempfilename, &status))
- return false;
-
- return true;
-}
-
void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator)
{
FLAC__ASSERT(iterator->depth+1 < SIMPLE_ITERATOR_MAX_PUSH_DEPTH);
{
FLAC__ASSERT(iterator->depth > 0);
iterator->depth--;
- if(0 != fseek(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+ if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
return read_metadata_block_header_(iterator);
}
-unsigned seek_to_first_metadata_block_(FILE *f)
+/* return meanings:
+ * 0: ok
+ * 1: read error
+ * 2: seek error
+ * 3: not a FLAC file
+ */
+unsigned seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb)
{
FLAC__byte buffer[4];
size_t n;
unsigned i;
- FLAC__ASSERT(0 != f);
- FLAC__ASSERT(FLAC__STREAM_SYNC_LENGTH == 4);
+ FLAC__ASSERT(FLAC__STREAM_SYNC_LENGTH == sizeof(buffer));
/* skip any id3v2 tag */
errno = 0;
- n = fread(buffer, 1, 4, f);
+ n = read_cb(buffer, 1, 4, handle);
if(errno)
return 1;
- else
- if(n != 4)
- return 2;
+ else if(n != 4)
+ return 3;
else if(0 == memcmp(buffer, "ID3", 3)) {
unsigned tag_length = 0;
/* skip to the tag length */
- if(fseek(f, 2, SEEK_CUR) < 0)
- return 1;
+ if(seek_cb(handle, 2, SEEK_CUR) < 0)
+ return 2;
/* read the length */
for(i = 0; i < 4; i++) {
- if(fread(buffer, 1, 1, f) < 1 || buffer[0] & 0x80)
+ if(read_cb(buffer, 1, 1, handle) < 1 || buffer[0] & 0x80)
return 1;
tag_length <<= 7;
tag_length |= (buffer[0] & 0x7f);
}
/* skip the rest of the tag */
- if(fseek(f, tag_length, SEEK_CUR) < 0)
- return 1;
+ if(seek_cb(handle, tag_length, SEEK_CUR) < 0)
+ return 2;
/* read the stream sync code */
errno = 0;
- n = fread(buffer, 1, 4, f);
+ n = read_cb(buffer, 1, 4, handle);
if(errno)
return 1;
- else
- if(n != 4)
- return 2;
+ else if(n != 4)
+ return 3;
}
/* check for the fLaC signature */
if(0 == memcmp(FLAC__STREAM_SYNC_STRING, buffer, FLAC__STREAM_SYNC_LENGTH))
return 0;
else
- return 2;
+ return 3;
+}
+
+unsigned seek_to_first_metadata_block_(FILE *f)
+{
+ return seek_to_first_metadata_block_cb_((FLAC__IOHandle)f, (FLAC__IOCallback_Read)fread, fseek_wrapper_);
}
FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append)
{
- const long offset_end = append? iterator->offset[iterator->depth] + (long)FLAC__STREAM_METADATA_HEADER_LENGTH + (long)iterator->length : iterator->offset[iterator->depth];
+ const FLAC__off_t offset_end = append? iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length : iterator->offset[iterator->depth];
- if(0 != fseek(iterator->file, 0, SEEK_SET)) {
+ if(0 != fseeko(iterator->file, 0, SEEK_SET)) {
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
}
return true;
}
-FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, long fixup_is_last_flag_offset, FLAC__bool backup)
+FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, FLAC__off_t fixup_is_last_flag_offset, FLAC__bool backup)
{
- long save_offset = iterator->offset[iterator->depth]; /*@@@ 2G limit */
+ FLAC__off_t save_offset = iterator->offset[iterator->depth];
FLAC__ASSERT(0 != *tempfile);
- if(0 != fseek(iterator->file, save_offset + FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length, SEEK_SET)) {
+ if(0 != fseeko(iterator->file, save_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length, SEEK_SET)) {
cleanup_tempfile_(tempfile, tempfilename);
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
* if code == -1, it means the last block was deleted so
* we have to set the is_last flag of the previous block
*/
- /*@@@ MAGIC NUMBERs here; we know the is_last flag is the high bit of the byte at this location */
+ /* MAGIC NUMBERs here; we know the is_last flag is the high bit of the byte at this location */
FLAC__byte x;
- if(0 != fseek(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
+ if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
cleanup_tempfile_(tempfile, tempfilename);
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
FLAC__ASSERT(!(x & 0x80));
x |= 0x80;
}
- if(0 != fseek(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
+ if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
cleanup_tempfile_(tempfile, tempfilename);
iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
return false;
if(!simple_iterator_prime_input_(iterator, !iterator->is_writable))
return false;
if(backup) {
- while(iterator->offset[iterator->depth] + (long)FLAC__STREAM_METADATA_HEADER_LENGTH + (long)iterator->length < save_offset)
+ while(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length < save_offset)
if(!FLAC__metadata_simple_iterator_next(iterator))
return false;
return true;
}
}
-FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, unsigned bytes/*@@@ 4G limit*/, FLAC__Metadata_SimpleIteratorStatus *status)
+FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
{
FLAC__byte buffer[8192];
- unsigned n;
+ size_t n;
+ FLAC__ASSERT(bytes >= 0);
while(bytes > 0) {
- n = min(sizeof(buffer), bytes);
+ n = flac_min(sizeof(buffer), (size_t)bytes);
if(fread(buffer, 1, n, file) != n) {
*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
return false;
return true;
}
+FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+ FLAC__byte buffer[8192];
+ size_t n;
+
+ FLAC__ASSERT(bytes >= 0);
+ while(bytes > 0) {
+ n = flac_min(sizeof(buffer), (size_t)bytes);
+ if(read_cb(buffer, 1, n, handle) != n) {
+ *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ return false;
+ }
+ if(temp_write_cb(buffer, 1, n, temp_handle) != n) {
+ *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ return false;
+ }
+ bytes -= n;
+ }
+
+ return true;
+}
+
FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status)
{
FLAC__byte buffer[8192];
return true;
}
+FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+ FLAC__byte buffer[8192];
+ size_t n;
+
+ while(!eof_cb(handle)) {
+ n = read_cb(buffer, 1, sizeof(buffer), handle);
+ if(n == 0 && !eof_cb(handle)) {
+ *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+ return false;
+ }
+ if(n > 0 && temp_write_cb(buffer, 1, n, temp_handle) != n) {
+ *status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static int
+local_snprintf(char *str, size_t size, const char *fmt, ...)
+{
+ va_list va;
+ int rc ;
+
+ va_start (va, fmt);
+
+#ifdef _MSC_VER
+ rc = vsnprintf_s (str, size, _TRUNCATE, fmt, va);
+ rc = (rc > 0) ? rc : (size == 0 ? 1024 : size * 2);
+#else
+ rc = vsnprintf (str, size, fmt, va);
+#endif
+ va_end (va);
+
+ return rc;
+}
+
FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status)
{
static const char *tempfile_suffix = ".metadata_edit";
if(0 == tempfile_path_prefix) {
- if(0 == (*tempfilename = (char*)malloc(strlen(filename) + strlen(tempfile_suffix) + 1))) {
+ size_t dest_len = strlen(filename) + strlen(tempfile_suffix) + 1;
+ if(0 == (*tempfilename = safe_malloc_(dest_len))) {
*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
return false;
}
- strcpy(*tempfilename, filename);
- strcat(*tempfilename, tempfile_suffix);
+ local_snprintf(*tempfilename, dest_len, "%s%s", filename, tempfile_suffix);
}
else {
const char *p = strrchr(filename, '/');
+ size_t dest_len;
if(0 == p)
p = filename;
else
p++;
- if(0 == (*tempfilename = (char*)malloc(strlen(tempfile_path_prefix) + 1 + strlen(p) + strlen(tempfile_suffix) + 1))) {
+ dest_len = strlen(tempfile_path_prefix) + strlen(p) + strlen(tempfile_suffix) + 2;
+
+ if(0 == (*tempfilename = safe_malloc_(dest_len))) {
*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
return false;
}
- strcpy(*tempfilename, tempfile_path_prefix);
- strcat(*tempfilename, "/");
- strcat(*tempfilename, p);
- strcat(*tempfilename, tempfile_suffix);
+ local_snprintf(*tempfilename, dest_len, "%s/%s%s", tempfile_path_prefix, p, tempfile_suffix);
}
if(0 == (*tempfile = fopen(*tempfilename, "w+b"))) {
(void)fclose(*tempfile);
*tempfile = 0;
-#if defined _MSC_VER || defined __MINGW32__
+#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ || defined __EMX__
+ /* on some flavors of windows, rename() will fail if the destination already exists */
if(unlink(filename) < 0) {
cleanup_tempfile_(tempfile, tempfilename);
*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR;
srctime.modtime = stats->st_mtime;
(void)chmod(filename, stats->st_mode);
(void)utime(filename, &srctime);
-#if !defined _MSC_VER && !defined __MINGW32__
- (void)chown(filename, stats->st_uid, -1);
- (void)chown(filename, -1, stats->st_gid);
+#if !defined _MSC_VER && !defined __BORLANDC__ && !defined __MINGW32__
+ FLAC_CHECK_RETURN(chown(filename, stats->st_uid, -1));
+ FLAC_CHECK_RETURN(chown(filename, -1, stats->st_gid));
#endif
}
+int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence)
+{
+ return fseeko((FILE*)handle, (FLAC__off_t)offset, whence);
+}
+
+FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle)
+{
+ return ftello((FILE*)handle);
+}
+
FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status)
{
switch(status) {
projects / platform / upstream / flac.git / blobdiff