/* metaflac - Command-line FLAC metadata editor

* Copyright (C) 2001-2009 Josh Coalson

* Copyright (C) 2011-2016 Xiph.Org Foundation

*

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

*

* This program 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 General Public License for more details.

*

* You should have received a copy of the GNU General Public License along

* with this program; if not, write to the Free Software Foundation, Inc.,

* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

*/

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include "operations.h"

#include "usage.h"

#include "utils.h"

#include "FLAC/assert.h"

#include "FLAC/metadata.h"

#include "share/alloc.h"

#include "share/grabbag.h"

#include "share/compat.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "operations_shorthand.h"

static void show_version(void);

static FLAC__bool do_major_operation(const CommandLineOptions *options);

static FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options);

static FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options);

static FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);

static FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);

static FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);

static FLAC__bool do_shorthand_operations(const CommandLineOptions *options);

static FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options);

static FLAC__bool do_shorthand_operation(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert);

static FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime, FLAC__bool scan);

static FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write);

static FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number);

static void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application);

/* from operations_shorthand_seektable.c */

extern FLAC__bool do_shorthand_operation__add_seekpoints(const char *filename, FLAC__Metadata_Chain *chain, const char *specification, FLAC__bool *needs_write);

/* from operations_shorthand_streaminfo.c */

extern FLAC__bool do_shorthand_operation__streaminfo(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);

/* from operations_shorthand_vorbiscomment.c */

extern FLAC__bool do_shorthand_operation__vorbis_comment(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool raw);

/* from operations_shorthand_cuesheet.c */

extern FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);

/* from operations_shorthand_picture.c */

extern FLAC__bool do_shorthand_operation__picture(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);

FLAC__bool do_operations(const CommandLineOptions *options)

{

FLAC__bool ok = true;

if(options->show_long_help) {

long_usage(0);

}

if(options->show_version) {

show_version();

}

else if(options->args.checks.num_major_ops > 0) {

FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0);

FLAC__ASSERT(options->args.checks.num_major_ops == 1);

FLAC__ASSERT(options->args.checks.num_major_ops == options->ops.num_operations);

ok = do_major_operation(options);

}

else if(options->args.checks.num_shorthand_ops > 0) {

FLAC__ASSERT(options->args.checks.num_shorthand_ops == options->ops.num_operations);

ok = do_shorthand_operations(options);

}

return ok;

}

/*

* local routines

*/

void show_version(void)

{

printf("metaflac %s\n", FLAC__VERSION_STRING);

}

FLAC__bool do_major_operation(const CommandLineOptions *options)

{

unsigned i;

FLAC__bool ok = true;

/* to die after first error, v--- add '&& ok' here */

for(i = 0; i < options->num_files; i++)

ok &= do_major_operation_on_file(options->filenames[i], options);

return ok;

}

FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options)

{

FLAC__bool ok = true, needs_write = false, is_ogg = false;

FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();

if(0 == chain)

die("out of memory allocating chain");

/*@@@@ lame way of guessing the file type */

if(strlen(filename) >= 4 && (0 == strcmp(filename+strlen(filename)-4, ".oga") || 0 == strcmp(filename+strlen(filename)-4, ".ogg")))

is_ogg = true;

if(! (is_ogg? FLAC__metadata_chain_read_ogg(chain, filename) : FLAC__metadata_chain_read(chain, filename)) ) {

print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);

FLAC__metadata_chain_delete(chain);

return false;

}

switch(options->ops.operations[0].type) {

case OP__LIST:

ok = do_major_operation__list(options->prefix_with_filename? filename : 0, chain, options);

break;

case OP__APPEND:

ok = do_major_operation__append(chain, options);

needs_write = true;

break;

case OP__REMOVE:

ok = do_major_operation__remove(chain, options);

needs_write = true;

break;

case OP__REMOVE_ALL:

ok = do_major_operation__remove_all(chain, options);

needs_write = true;

break;

case OP__MERGE_PADDING:

FLAC__metadata_chain_merge_padding(chain);

needs_write = true;

break;

case OP__SORT_PADDING:

FLAC__metadata_chain_sort_padding(chain);

needs_write = true;

break;

default:

FLAC__ASSERT(0);

return false;

}

if(ok && needs_write) {

if(options->use_padding)

FLAC__metadata_chain_sort_padding(chain);

ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime);

if(!ok)

print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);

}

FLAC__metadata_chain_delete(chain);

return ok;

}

FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options)

{

FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();

FLAC__StreamMetadata *block;

FLAC__bool ok = true;

unsigned block_number;

if(0 == iterator)

die("out of memory allocating iterator");

FLAC__metadata_iterator_init(iterator, chain);

block_number = 0;

do {

block = FLAC__metadata_iterator_get_block(iterator);

ok &= (0 != block);

if(!ok)

flac_fprintf(stderr, "%s: ERROR: couldn't get block from chain\n", filename);

else if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number))

write_metadata(filename, block, block_number, !options->utf8_convert, options->application_data_format_is_hexdump);

block_number++;

} while(ok && FLAC__metadata_iterator_next(iterator));

FLAC__metadata_iterator_delete(iterator);

return ok;

}

FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)

{

(void) chain, (void) options;

flac_fprintf(stderr, "ERROR: --append not implemented yet\n");

return false;

}

FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)

{

FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();

FLAC__bool ok = true;

unsigned block_number;

if(0 == iterator)

die("out of memory allocating iterator");

FLAC__metadata_iterator_init(iterator, chain);

block_number = 0;

while(ok && FLAC__metadata_iterator_next(iterator)) {

block_number++;

if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) {

ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);

if(options->use_padding)

ok &= FLAC__metadata_iterator_next(iterator);

}

}

FLAC__metadata_iterator_delete(iterator);

return ok;

}

FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)

{

FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();

FLAC__bool ok = true;

if(0 == iterator)

die("out of memory allocating iterator");

FLAC__metadata_iterator_init(iterator, chain);

while(ok && FLAC__metadata_iterator_next(iterator)) {

ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);

if(options->use_padding)

ok &= FLAC__metadata_iterator_next(iterator);

}

FLAC__metadata_iterator_delete(iterator);

return ok;

}

FLAC__bool do_shorthand_operations(const CommandLineOptions *options)

{

unsigned i;

FLAC__bool ok = true;

/* to die after first error, v--- add '&& ok' here */

for(i = 0; i < options->num_files; i++)

ok &= do_shorthand_operations_on_file(options->filenames[i], options);

/* check if OP__ADD_REPLAY_GAIN requested */

if(ok && options->num_files > 0) {

for(i = 0; i < options->ops.num_operations; i++) {

if(options->ops.operations[i].type == OP__ADD_REPLAY_GAIN)

ok = do_shorthand_operation__add_replay_gain(options->filenames, options->num_files, options->preserve_modtime, false);

else if(options->ops.operations[i].type == OP__SCAN_REPLAY_GAIN)

ok = do_shorthand_operation__add_replay_gain(options->filenames, options->num_files, options->preserve_modtime, true);

}

}

return ok;

}

FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options)

{

unsigned i;

FLAC__bool ok = true, needs_write = false, use_padding = options->use_padding;

FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();

if(0 == chain)

die("out of memory allocating chain");

if(!FLAC__metadata_chain_read(chain, filename)) {

print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);

ok = false;

goto cleanup;

}

for(i = 0; i < options->ops.num_operations && ok; i++) {

/*

* Do OP__ADD_SEEKPOINT last to avoid decoding twice if both

* --add-seekpoint and --import-cuesheet-from are used.

*/

if(options->ops.operations[i].type != OP__ADD_SEEKPOINT)

ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);

/* The following seems counterintuitive but the meaning

* of 'use_padding' is 'try to keep the overall metadata

* to its original size, adding or truncating extra

* padding if necessary' which is why we need to turn it

* off in this case. If we don't, the extra padding block

* will just be truncated.

*/

if(options->ops.operations[i].type == OP__ADD_PADDING)

use_padding = false;

}

/*

* Do OP__ADD_SEEKPOINT last to avoid decoding twice if both

* --add-seekpoint and --import-cuesheet-from are used.

*/

for(i = 0; i < options->ops.num_operations && ok; i++) {

if(options->ops.operations[i].type == OP__ADD_SEEKPOINT)

ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);

}

if(ok && needs_write) {

if(use_padding)

FLAC__metadata_chain_sort_padding(chain);

ok = FLAC__metadata_chain_write(chain, use_padding, options->preserve_modtime);

if(!ok)

print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);

}

FLAC__metadata_chain_delete(chain);

return ok;

}

FLAC__bool do_shorthand_operation(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert)

{

FLAC__bool ok = true;

switch(operation->type) {

case OP__SHOW_MD5SUM:

case OP__SHOW_MIN_BLOCKSIZE:

case OP__SHOW_MAX_BLOCKSIZE:

case OP__SHOW_MIN_FRAMESIZE:

case OP__SHOW_MAX_FRAMESIZE:

case OP__SHOW_SAMPLE_RATE:

case OP__SHOW_CHANNELS:

case OP__SHOW_BPS:

case OP__SHOW_TOTAL_SAMPLES:

case OP__SET_MD5SUM:

case OP__SET_MIN_BLOCKSIZE:

case OP__SET_MAX_BLOCKSIZE:

case OP__SET_MIN_FRAMESIZE:

case OP__SET_MAX_FRAMESIZE:

case OP__SET_SAMPLE_RATE:

case OP__SET_CHANNELS:

case OP__SET_BPS:

case OP__SET_TOTAL_SAMPLES:

ok = do_shorthand_operation__streaminfo(filename, prefix_with_filename, chain, operation, needs_write);

break;

case OP__SHOW_VC_VENDOR:

case OP__SHOW_VC_FIELD:

case OP__REMOVE_VC_ALL:

case OP__REMOVE_VC_FIELD:

case OP__REMOVE_VC_FIRSTFIELD:

case OP__SET_VC_FIELD:

case OP__IMPORT_VC_FROM:

case OP__EXPORT_VC_TO:

ok = do_shorthand_operation__vorbis_comment(filename, prefix_with_filename, chain, operation, needs_write, !utf8_convert);

break;

case OP__IMPORT_CUESHEET_FROM:

case OP__EXPORT_CUESHEET_TO:

ok = do_shorthand_operation__cuesheet(filename, chain, operation, needs_write);

break;

case OP__IMPORT_PICTURE_FROM:

case OP__EXPORT_PICTURE_TO:

ok = do_shorthand_operation__picture(filename, chain, operation, needs_write);

break;

case OP__ADD_SEEKPOINT:

ok = do_shorthand_operation__add_seekpoints(filename, chain, operation->argument.add_seekpoint.specification, needs_write);

break;

case OP__ADD_REPLAY_GAIN:

case OP__SCAN_REPLAY_GAIN:

/* these commands are always executed last */

ok = true;

break;

case OP__ADD_PADDING:

ok = do_shorthand_operation__add_padding(filename, chain, operation->argument.add_padding.length, needs_write);

break;

default:

ok = false;

FLAC__ASSERT(0);

break;

};

return ok;

}

FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime, FLAC__bool scan)

{

FLAC__StreamMetadata streaminfo;

float *title_gains = 0, *title_peaks = 0;

float album_gain, album_peak;

unsigned sample_rate = 0;

unsigned bits_per_sample = 0;

unsigned channels = 0;

unsigned i;

const char *error;

FLAC__bool first = true;

FLAC__ASSERT(num_files > 0);

for(i = 0; i < num_files; i++) {

FLAC__ASSERT(0 != filenames[i]);

if(!FLAC__metadata_get_streaminfo(filenames[i], &streaminfo)) {

flac_fprintf(stderr, "%s: ERROR: can't open file or get STREAMINFO block\n", filenames[i]);

return false;

}

if(first) {

first = false;

sample_rate = streaminfo.data.stream_info.sample_rate;

bits_per_sample = streaminfo.data.stream_info.bits_per_sample;

channels = streaminfo.data.stream_info.channels;

}

else {

if(sample_rate != streaminfo.data.stream_info.sample_rate) {

flac_fprintf(stderr, "%s: ERROR: sample rate of %u Hz does not match previous files' %u Hz\n", filenames[i], streaminfo.data.stream_info.sample_rate, sample_rate);

return false;

}

if(bits_per_sample != streaminfo.data.stream_info.bits_per_sample) {

flac_fprintf(stderr, "%s: ERROR: resolution of %u bps does not match previous files' %u bps\n", filenames[i], streaminfo.data.stream_info.bits_per_sample, bits_per_sample);

return false;

}

if(channels != streaminfo.data.stream_info.channels) {

flac_fprintf(stderr, "%s: ERROR: # channels (%u) does not match previous files' (%u)\n", filenames[i], streaminfo.data.stream_info.channels, channels);

return false;

}

}

if(!grabbag__replaygain_is_valid_sample_frequency(sample_rate)) {

flac_fprintf(stderr, "%s: ERROR: sample rate of %u Hz is not supported\n", filenames[i], sample_rate);

return false;

}

if(channels != 1 && channels != 2) {

flac_fprintf(stderr, "%s: ERROR: # of channels (%u) is not supported, must be 1 or 2\n", filenames[i], channels);

return false;

}

}

FLAC__ASSERT(bits_per_sample >= FLAC__MIN_BITS_PER_SAMPLE && bits_per_sample <= FLAC__MAX_BITS_PER_SAMPLE);

if(!grabbag__replaygain_init(sample_rate)) {

FLAC__ASSERT(0);

/* double protection */

flac_fprintf(stderr, "internal error\n");

return false;

}

if(

0 == (title_gains = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files)) ||

0 == (title_peaks = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files))

)

die("out of memory allocating space for title gains/peaks");

for(i = 0; i < num_files; i++) {

if(0 != (error = grabbag__replaygain_analyze_file(filenames[i], title_gains+i, title_peaks+i))) {

flac_fprintf(stderr, "%s: ERROR: during analysis (%s)\n", filenames[i], error);

free(title_gains);

free(title_peaks);

return false;

}

}

grabbag__replaygain_get_album(&album_gain, &album_peak);

for(i = 0; i < num_files; i++) {

if(!scan) {

if(0 != (error = grabbag__replaygain_store_to_file(filenames[i], album_gain, album_peak, title_gains[i], title_peaks[i], preserve_modtime))) {

flac_fprintf(stderr, "%s: ERROR: writing tags (%s)\n", filenames[i], error);

free(title_gains);

free(title_peaks);

return false;

}

} else {

flac_fprintf(stdout, "%s: %f %f %f %f\n", filenames[i], album_gain, album_peak, title_gains[i], title_peaks[i]);

}

}

free(title_gains);

free(title_peaks);

return true;

}

FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write)

{

FLAC__StreamMetadata *padding = 0;

FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();

if(0 == iterator)

die("out of memory allocating iterator");

FLAC__metadata_iterator_init(iterator, chain);

while(FLAC__metadata_iterator_next(iterator))

;

padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);

if(0 == padding)

die("out of memory allocating PADDING block");

padding->length = length;

if(!FLAC__metadata_iterator_insert_block_after(iterator, padding)) {

print_error_with_chain_status(chain, "%s: ERROR: adding new PADDING block to metadata", filename);

FLAC__metadata_object_delete(padding);

FLAC__metadata_iterator_delete(iterator);

return false;

}

FLAC__metadata_iterator_delete(iterator);

*needs_write = true;

return true;

}

FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number)

{

unsigned i, j;

FLAC__bool matches_number = false, matches_type = false;

FLAC__bool has_block_number_arg = false;

for(i = 0; i < options->args.num_arguments; i++) {

if(options->args.arguments[i].type == ARG__BLOCK_TYPE || options->args.arguments[i].type == ARG__EXCEPT_BLOCK_TYPE) {

for(j = 0; j < options->args.arguments[i].value.block_type.num_entries; j++) {

if(options->args.arguments[i].value.block_type.entries[j].type == block->type) {

if(block->type != FLAC__METADATA_TYPE_APPLICATION || !options->args.arguments[i].value.block_type.entries[j].filter_application_by_id || 0 == memcmp(options->args.arguments[i].value.block_type.entries[j].application_id, block->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))

matches_type = true;

}

}

}

else if(options->args.arguments[i].type == ARG__BLOCK_NUMBER) {

has_block_number_arg = true;

for(j = 0; j < options->args.arguments[i].value.block_number.num_entries; j++) {

if(options->args.arguments[i].value.block_number.entries[j] == block_number)

matches_number = true;

}

}

}

if(!has_block_number_arg)

matches_number = true;

if(options->args.checks.has_block_type) {

FLAC__ASSERT(!options->args.checks.has_except_block_type);

}

else if(options->args.checks.has_except_block_type)

matches_type = !matches_type;

else

matches_type = true;

return matches_number && matches_type;

}

void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application)

{

unsigned i, j;

/*@@@ yuck, should do this with a varargs function or something: */

#define PPR if(filename) { if(raw) printf("%s:",filename); else flac_printf("%s:",filename); }

PPR; printf("METADATA block #%u\n", block_number);

PPR; printf(" type: %u (%s)\n", (unsigned)block->type, block->type < FLAC__METADATA_TYPE_UNDEFINED? FLAC__MetadataTypeString[block->type] : "UNKNOWN");

PPR; printf(" is last: %s\n", block->is_last? "true":"false");

PPR; printf(" length: %u\n", block->length);

switch(block->type) {

case FLAC__METADATA_TYPE_STREAMINFO:

PPR; printf(" minimum blocksize: %u samples\n", block->data.stream_info.min_blocksize);

PPR; printf(" maximum blocksize: %u samples\n", block->data.stream_info.max_blocksize);

PPR; printf(" minimum framesize: %u bytes\n", block->data.stream_info.min_framesize);

PPR; printf(" maximum framesize: %u bytes\n", block->data.stream_info.max_framesize);

PPR; printf(" sample_rate: %u Hz\n", block->data.stream_info.sample_rate);

PPR; printf(" channels: %u\n", block->data.stream_info.channels);

PPR; printf(" bits-per-sample: %u\n", block->data.stream_info.bits_per_sample);

PPR; printf(" total samples: %" PRIu64 "\n", block->data.stream_info.total_samples);

PPR; printf(" MD5 signature: ");

for(i = 0; i < 16; i++) {

printf("%02x", (unsigned)block->data.stream_info.md5sum[i]);

}

printf("\n");

break;

case FLAC__METADATA_TYPE_PADDING:

/* nothing to print */

break;

case FLAC__METADATA_TYPE_APPLICATION:

PPR; printf(" application ID: ");

for(i = 0; i < 4; i++)

printf("%02x", block->data.application.id[i]);

printf("\n");

PPR; printf(" data contents:\n");

if(0 != block->data.application.data) {

if(hexdump_application)

hexdump(filename, block->data.application.data, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, " ");

else

(void) local_fwrite(block->data.application.data, 1, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, stdout);

}

break;

case FLAC__METADATA_TYPE_SEEKTABLE:

PPR; printf(" seek points: %u\n", block->data.seek_table.num_points);

for(i = 0; i < block->data.seek_table.num_points; i++) {

if(block->data.seek_table.points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {

PPR; printf(" point %u: sample_number=%" PRIu64 ", stream_offset=%" PRIu64 ", frame_samples=%u\n", i, block->data.seek_table.points[i].sample_number, block->data.seek_table.points[i].stream_offset, block->data.seek_table.points[i].frame_samples);

}

else {

PPR; printf(" point %u: PLACEHOLDER\n", i);

}

}

break;

case FLAC__METADATA_TYPE_VORBIS_COMMENT:

PPR; printf(" vendor string: ");

write_vc_field(0, &block->data.vorbis_comment.vendor_string, raw, stdout);

PPR; printf(" comments: %u\n", block->data.vorbis_comment.num_comments);

for(i = 0; i < block->data.vorbis_comment.num_comments; i++) {

PPR; printf(" comment[%u]: ", i);

write_vc_field(0, &block->data.vorbis_comment.comments[i], raw, stdout);

}

break;

case FLAC__METADATA_TYPE_CUESHEET:

PPR; printf(" media catalog number: %s\n", block->data.cue_sheet.media_catalog_number);

PPR; printf(" lead-in: %" PRIu64 "\n", block->data.cue_sheet.lead_in);

PPR; printf(" is CD: %s\n", block->data.cue_sheet.is_cd? "true":"false");

PPR; printf(" number of tracks: %u\n", block->data.cue_sheet.num_tracks);

for(i = 0; i < block->data.cue_sheet.num_tracks; i++) {

const FLAC__StreamMetadata_CueSheet_Track *track = block->data.cue_sheet.tracks+i;

const FLAC__bool is_last = (i == block->data.cue_sheet.num_tracks-1);

const FLAC__bool is_leadout = is_last && track->num_indices == 0;

PPR; printf(" track[%u]\n", i);

PPR; printf(" offset: %" PRIu64 "\n", track->offset);

if(is_last) {

PPR; printf(" number: %u (%s)\n", (unsigned)track->number, is_leadout? "LEAD-OUT" : "INVALID");

}

else {

PPR; printf(" number: %u\n", (unsigned)track->number);

}

if(!is_leadout) {

PPR; printf(" ISRC: %s\n", track->isrc);

PPR; printf(" type: %s\n", track->type == 1? "DATA" : "AUDIO");

PPR; printf(" pre-emphasis: %s\n", track->pre_emphasis? "true":"false");

PPR; printf(" number of index points: %u\n", track->num_indices);

for(j = 0; j < track->num_indices; j++) {

const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices+j;

PPR; printf(" index[%u]\n", j);

PPR; printf(" offset: %" PRIu64 "\n", indx->offset);

PPR; printf(" number: %u\n", (unsigned)indx->number);

}

}

}

break;

case FLAC__METADATA_TYPE_PICTURE:

PPR; printf(" type: %u (%s)\n", block->data.picture.type, block->data.picture.type < FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED? FLAC__StreamMetadata_Picture_TypeString[block->data.picture.type] : "UNDEFINED");

PPR; printf(" MIME type: %s\n", block->data.picture.mime_type);

PPR; printf(" description: %s\n", block->data.picture.description);

PPR; printf(" width: %u\n", (unsigned)block->data.picture.width);

PPR; printf(" height: %u\n", (unsigned)block->data.picture.height);

PPR; printf(" depth: %u\n", (unsigned)block->data.picture.depth);

PPR; printf(" colors: %u%s\n", (unsigned)block->data.picture.colors, block->data.picture.colors? "" : " (unindexed)");

PPR; printf(" data length: %u\n", (unsigned)block->data.picture.data_length);

PPR; printf(" data:\n");

if(0 != block->data.picture.data)

hexdump(filename, block->data.picture.data, block->data.picture.data_length, " ");

break;

default:

PPR; printf(" data contents:\n");

if(0 != block->data.unknown.data)

hexdump(filename, block->data.unknown.data, block->length, " ");

break;

}

#undef PPR

}