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remove unused code

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This commit is contained in:
Josh Coalson
2002-05-30 05:18:29 +00:00
parent 854203f4b7
commit 089f3be9b0
1 changed files with 62 additions and 270 deletions
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332
src/libFLAC/metadata.c
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@@ -1209,6 +1209,10 @@ FLAC__bool FLAC__metadata_iterator_insert_block_after(FLAC__MetaData_Iterator *i
*
***************************************************************************/
/*@@@@move
will return pointer to new empty object of type 'type', or 0 if malloc failed
type is valid type
*/
FLAC__StreamMetaData *FLAC__metadata_object_new(FLAC__MetaDataType type)
{
FLAC__StreamMetaData *object = malloc(sizeof(FLAC__StreamMetaData));
@@ -1231,7 +1235,10 @@ FLAC__StreamMetaData *FLAC__metadata_object_new(FLAC__MetaDataType type)
object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN + FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8;
break;
default:
/* double protection: */
FLAC__ASSERT(0);
free(object);
return 0;
}
}
@@ -1269,6 +1276,10 @@ static FLAC__bool copy_vcentry_(FLAC__StreamMetaData_VorbisComment_Entry *to, co
return true;
}
/*@@@@move
return a pointer to a copy of 'object', or 0 if any malloc failed. does a deep copy. user gets ownership of object.
FLAC__ASSERT(0 != object);
*/
FLAC__StreamMetaData *FLAC__metadata_object_copy(const FLAC__StreamMetaData *object)
{
FLAC__StreamMetaData *to;
@@ -1305,34 +1316,25 @@ FLAC__StreamMetaData *FLAC__metadata_object_copy(const FLAC__StreamMetaData *obj
FLAC__metadata_object_delete(to);
return 0;
}
to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments;
if(object->data.vorbis_comment.num_comments == 0) {
FLAC__ASSERT(0 == object->data.vorbis_comment.comments);
to->data.vorbis_comment.comments = 0;
}
else {
FLAC__ASSERT(0 != object->data.vorbis_comment.comments);
if(0 == (to->data.vorbis_comment.comments = malloc(object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetaData_VorbisComment_Entry*)))) {
FLAC__metadata_object_delete(to);
return 0;
}
}
/* Need to do this to set the pointers inside the comments to 0.
* In case of an error in the following loop, the object will be
* deleted and we don't want the destructor freeing uninitialized
* pointers.
*/
if(0 != to->data.vorbis_comment.comments)
memset(to->data.vorbis_comment.comments, 0, object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetaData_VorbisComment_Entry*));
for(i = 0; i < object->data.vorbis_comment.num_comments; i++) {
if(!copy_vcentry_(to->data.vorbis_comment.comments+i, object->data.vorbis_comment.comments+i)) {
to->data.vorbis_comment.comments = FLAC__metadata_object_vorbiscomment_entry_array_copy(object->data.vorbis_comment.comments);
if(0 == to->data.vorbis_comment.comments) {
FLAC__metadata_object_delete(to);
return 0;
}
}
to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments;
break;
default:
/* double protection: */
FLAC__ASSERT(0);
free(to);
return 0;
}
}
@@ -1360,24 +1362,30 @@ void FLAC__metadata_object_delete_data_(FLAC__StreamMetaData *object)
case FLAC__METADATA_TYPE_VORBIS_COMMENT:
if(0 != object->data.vorbis_comment.vendor_string.entry)
free(object->data.vorbis_comment.vendor_string.entry);
for(i = 0; i < object->data.vorbis_comment.num_comments; i++) {
if(0 != object->data.vorbis_comment.comments[i].entry)
free(object->data.vorbis_comment.comments[i].entry);
if(0 != object->data.vorbis_comment.comments) {
FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
FLAC__metadata_object_vorbiscomment_entry_array_delete(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
}
if(0 != object->data.vorbis_comment.comments)
free(object->data.vorbis_comment.comments);
break;
default:
FLAC__ASSERT(0);
}
}
/*@@@@move
frees 'object'. does a deep delete.
*/
void FLAC__metadata_object_delete(FLAC__StreamMetaData *object)
{
FLAC__metadata_object_delete_data_(object);
free(object);
}
/*@@@@move
sets the application data to 'data'. if 'copy' is true, makes, copy, else takes ownership of pointer. returns false if copy==true and malloc fails.
FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION);
FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false));
*/
FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetaData *object, FLAC__byte *data, unsigned length, FLAC__bool copy)
{
FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION);
@@ -1397,6 +1405,10 @@ FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetaData *obje
return true;
}
/*@@@@move
creates an array of seekpoints (FLAC__StreamMetaData_SeekPoint). returns pointer to new array, or NULL if malloc fails.
num_points > 0.
*/
FLAC__StreamMetaData_SeekPoint *FLAC__metadata_object_seekpoint_array_new(unsigned num_points)
{
FLAC__StreamMetaData_SeekPoint *object_array;
@@ -1411,6 +1423,11 @@ FLAC__StreamMetaData_SeekPoint *FLAC__metadata_object_seekpoint_array_new(unsign
return object_array;
}
/*@@@@move
return pointer to copy of seekpoint array, or NULL if malloc fails.
num_points > 0
object_array != NULL
*/
FLAC__StreamMetaData_SeekPoint *FLAC__metadata_object_seekpoint_array_copy(const FLAC__StreamMetaData_SeekPoint *object_array, unsigned num_points)
{
FLAC__StreamMetaData_SeekPoint *return_array;
@@ -1426,6 +1443,10 @@ FLAC__StreamMetaData_SeekPoint *FLAC__metadata_object_seekpoint_array_copy(const
return return_array;
}
/*@@@@move
frees object array.
object_array != NULL
*/
void FLAC__metadata_object_seekpoint_array_delete(FLAC__StreamMetaData_SeekPoint *object_array)
{
FLAC__ASSERT(0 != object_array);
@@ -1510,11 +1531,16 @@ FLAC__StreamMetaData_VorbisComment_Entry *FLAC__metadata_object_vorbiscomment_en
if(0 != return_array) {
unsigned i;
/* Need to do this to set the pointers inside the comments to 0.
* In case of an error in the following loop, the object will be
* deleted and we don't want the destructor freeing uninitialized
* pointers.
*/
memset(return_array, 0, num_comments * sizeof(FLAC__StreamMetaData_VorbisComment_Entry));
for(i = 0; i < num_comments; i++) {
return_array[i].length = object_array[i].length;
if(object_array[i].length == 0)
return_array[i].entry = 0;
else if(!copy_bytes_(&(return_array[i].entry), object_array[i].entry, object_array[i].length)) {
if(!copy_vcentry_(return_array+i, object_array+i)) {
FLAC__metadata_object_vorbiscomment_entry_array_delete(return_array, num_comments);
return 0;
}
@@ -1637,6 +1663,18 @@ FLAC__bool FLAC__metadata_object_vorbiscomment_set_comments(FLAC__StreamMetaData
return true;
}
FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetaData *object, unsigned comment_num, FLAC__byte *entry, unsigned length, FLAC__bool copy)
{
}
FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetaData *object, unsigned comment_num, FLAC__byte *entry, unsigned length, FLAC__bool copy)
{
}
FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetaData *object, unsigned comment_num)
{
}
/****************************************************************************
*
@@ -2631,249 +2669,3 @@ FLAC__MetaData_ChainStatus get_equivalent_status_(FLAC__MetaData_SimpleIteratorS
return FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
}
}
#if 0
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
FLAC__bool list(FILE *f, FLAC__bool verbose)
{
FLAC__byte buf[65536];
FLAC__byte *b = buf;
FLAC__StreamMetaData metadata;
unsigned blocknum = 0, byte_offset = 0, i;
/* skip any id3v2 tag */
if(fread(buf, 1, 4, f) < 4) {
fprintf(stderr, "ERROR: not a FLAC file\n");
return false;
}
if(0 == memcmp(buf, "ID3", 3)) {
unsigned tag_length = 0;
/* skip to the tag length */
if(fseek(f, 2, SEEK_CUR) < 0) {
fprintf(stderr, "ERROR: bad ID3v2 tag\n");
return false;
}
/* read the length */
for(i = 0; i < 4; i++) {
if(fread(buf, 1, 1, f) < 1 || buf[0] & 0x80) {
fprintf(stderr, "ERROR: bad ID3v2 tag\n");
return false;
}
tag_length <<= 7;
tag_length |= (buf[0] & 0x7f);
}
/* skip the rest of the tag */
if(fseek(f, tag_length, SEEK_CUR) < 0) {
fprintf(stderr, "ERROR: bad ID3v2 tag\n");
return false;
}
/* read the stream sync code */
if(fread(buf, 1, 4, f) < 4) {
fprintf(stderr, "ERROR: not a FLAC file (no '%s' header)\n", sync_string_);
return false;
}
}
/* check the stream sync code */
if(memcmp(buf, sync_string_, 4)) {
fprintf(stderr, "ERROR: not a FLAC file (no '%s' header)\n", sync_string_);
return false;
}
byte_offset += 4;
/* read the metadata blocks */
do {
/* read the metadata block header */
if(fread(buf, 1, 4, f) < 4) {
fprintf(stderr, "ERROR: short count reading metadata block header\n");
return false;
}
metadata.is_last = (buf[0] & 0x80)? true:false;
metadata.type = (FLAC__MetaDataType)(buf[0] & 0x7f);
metadata.length = unpack_uint32(buf+1, 3);
/* print header */
printf("METADATA block #%u\n", blocknum);
printf(" byte offset: %u\n", byte_offset);
printf(" type: %u (%s)\n", (unsigned)metadata.type, metadata.type<=FLAC__METADATA_TYPE_SEEKTABLE? metadata_type_string_[metadata.type] : "UNKNOWN");
printf(" is last: %s\n", metadata.is_last? "true":"false");
printf(" length: %u\n", metadata.length);
if(metadata.length > sizeof(buf)) {
printf(" SKIPPING large block\n");
if(fseek(f, metadata.length, SEEK_CUR) < 0) {
fprintf(stderr, "ERROR: short count skipping metadata block data\n");
return false;
}
continue;
}
/* read the metadata block data */
if(fread(buf, 1, metadata.length, f) < metadata.length) {
fprintf(stderr, "ERROR: short count reading metadata block data\n");
return false;
}
switch(metadata.type) {
case FLAC__METADATA_TYPE_STREAMINFO:
b = buf;
metadata.data.stream_info.min_blocksize = unpack_uint32(b, 2); b += 2;
metadata.data.stream_info.max_blocksize = unpack_uint32(b, 2); b += 2;
metadata.data.stream_info.min_framesize = unpack_uint32(b, 3); b += 3;
metadata.data.stream_info.max_framesize = unpack_uint32(b, 3); b += 3;
metadata.data.stream_info.sample_rate = (unpack_uint32(b, 2) << 4) | ((unsigned)(b[2] & 0xf0) >> 4);
metadata.data.stream_info.channels = (unsigned)((b[2] & 0x0e) >> 1) + 1;
metadata.data.stream_info.bits_per_sample = ((((unsigned)(b[2] & 0x01)) << 1) | (((unsigned)(b[3] & 0xf0)) >> 4)) + 1;
metadata.data.stream_info.total_samples = (((FLAC__uint64)(b[3] & 0x0f)) << 32) | unpack_uint64(b+4, 4);
memcpy(metadata.data.stream_info.md5sum, b+8, 16);
break;
case FLAC__METADATA_TYPE_PADDING:
if(verbose) {
/* dump contents */
}
break;
case FLAC__METADATA_TYPE_APPLICATION:
memcpy(metadata.data.application.id, buf, 4);
metadata.data.application.data = buf+4;
break;
case FLAC__METADATA_TYPE_SEEKTABLE:
metadata.data.seek_table.num_points = metadata.length / SEEKPOINT_LEN_;
b = buf; /* we leave the points in buf for printing later */
break;
default:
printf("SKIPPING block of unknown type\n");
continue;
}
/* print data */
switch(metadata.type) {
case FLAC__METADATA_TYPE_STREAMINFO:
printf(" minumum blocksize: %u samples\n", metadata.data.stream_info.min_blocksize);
printf(" maximum blocksize: %u samples\n", metadata.data.stream_info.max_blocksize);
printf(" minimum framesize: %u bytes\n", metadata.data.stream_info.min_framesize);
printf(" maximum framesize: %u bytes\n", metadata.data.stream_info.max_framesize);
printf(" sample_rate: %u Hz\n", metadata.data.stream_info.sample_rate);
printf(" channels: %u\n", metadata.data.stream_info.channels);
printf(" bits-per-sample: %u\n", metadata.data.stream_info.bits_per_sample);
printf(" total samples: %llu\n", metadata.data.stream_info.total_samples);
printf(" MD5 signature: ");
for(i = 0; i < 16; i++)
printf("%02x", metadata.data.stream_info.md5sum[i]);
printf("\n");
break;
case FLAC__METADATA_TYPE_PADDING:
if(verbose) {
printf(" pad contents:\n");
hexdump(buf, metadata.length, " ");
}
break;
case FLAC__METADATA_TYPE_APPLICATION:
printf(" application ID: ");
for(i = 0; i < 4; i++)
printf("%02x", metadata.data.application.id[i]);
printf("\n");
if(verbose) {
printf(" data contents:\n");
hexdump(metadata.data.application.data, metadata.length, " ");
}
break;
case FLAC__METADATA_TYPE_SEEKTABLE:
printf(" seek points: %u\n", metadata.data.seek_table.num_points);
if(verbose) {
for(i = 0; i < metadata.data.seek_table.num_points; i++, b += SEEKPOINT_LEN_)
printf(" point %d: sample_number=%llu, stream_offset=%llu, frame_samples=%u\n", i, unpack_uint64(b, 8), unpack_uint64(b+8, 8), unpack_uint32(b+16, 2));
}
break;
default:
FLAC__ASSERT(0);
}
blocknum++;
byte_offset += (4 + metadata.length);
} while (!metadata.is_last);
return true;
}
FLAC__uint32 unpack_uint32(FLAC__byte *b, unsigned bytes)
{
FLAC__uint32 ret = 0;
unsigned i;
for(i = 0; i < bytes; i++)
ret = (ret << 8) | (FLAC__uint32)(*b++);
return ret;
}
FLAC__uint64 unpack_uint64(FLAC__byte *b, unsigned bytes)
{
FLAC__uint64 ret = 0;
unsigned i;
for(i = 0; i < bytes; i++)
ret = (ret << 8) | (FLAC__uint64)(*b++);
return ret;
}
void hexdump(const FLAC__byte *buf, unsigned bytes, const char *indent)
{
unsigned i, left = bytes;
const FLAC__byte *b = buf;
for(i = 0; i < bytes; i += 16) {
printf("%s%08X: "
"%02X %02X %02X %02X %02X %02X %02X %02X "
"%02X %02X %02X %02X %02X %02X %02X %02X "
"%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n",
indent, i,
left > 0? (unsigned char)b[ 0] : 0,
left > 1? (unsigned char)b[ 1] : 0,
left > 2? (unsigned char)b[ 2] : 0,
left > 3? (unsigned char)b[ 3] : 0,
left > 4? (unsigned char)b[ 4] : 0,
left > 5? (unsigned char)b[ 5] : 0,
left > 6? (unsigned char)b[ 6] : 0,
left > 7? (unsigned char)b[ 7] : 0,
left > 8? (unsigned char)b[ 8] : 0,
left > 9? (unsigned char)b[ 9] : 0,
left > 10? (unsigned char)b[10] : 0,
left > 11? (unsigned char)b[11] : 0,
left > 12? (unsigned char)b[12] : 0,
left > 13? (unsigned char)b[13] : 0,
left > 14? (unsigned char)b[14] : 0,
left > 15? (unsigned char)b[15] : 0,
(left > 0) ? (isprint(b[ 0]) ? b[ 0] : '.') : ' ',
(left > 1) ? (isprint(b[ 1]) ? b[ 1] : '.') : ' ',
(left > 2) ? (isprint(b[ 2]) ? b[ 2] : '.') : ' ',
(left > 3) ? (isprint(b[ 3]) ? b[ 3] : '.') : ' ',
(left > 4) ? (isprint(b[ 4]) ? b[ 4] : '.') : ' ',
(left > 5) ? (isprint(b[ 5]) ? b[ 5] : '.') : ' ',
(left > 6) ? (isprint(b[ 6]) ? b[ 6] : '.') : ' ',
(left > 7) ? (isprint(b[ 7]) ? b[ 7] : '.') : ' ',
(left > 8) ? (isprint(b[ 8]) ? b[ 8] : '.') : ' ',
(left > 9) ? (isprint(b[ 9]) ? b[ 9] : '.') : ' ',
(left > 10) ? (isprint(b[10]) ? b[10] : '.') : ' ',
(left > 11) ? (isprint(b[11]) ? b[11] : '.') : ' ',
(left > 12) ? (isprint(b[12]) ? b[12] : '.') : ' ',
(left > 13) ? (isprint(b[13]) ? b[13] : '.') : ' ',
(left > 14) ? (isprint(b[14]) ? b[14] : '.') : ' ',
(left > 15) ? (isprint(b[15]) ? b[15] : '.') : ' '
);
left -= 16;
b += 16;
}
}
#endif