diff options
Diffstat (limited to 'deps/flac-1.3.2/src/share/grabbag/seektable.c')
-rw-r--r-- | deps/flac-1.3.2/src/share/grabbag/seektable.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/deps/flac-1.3.2/src/share/grabbag/seektable.c b/deps/flac-1.3.2/src/share/grabbag/seektable.c deleted file mode 100644 index 01118d5..0000000 --- a/deps/flac-1.3.2/src/share/grabbag/seektable.c +++ /dev/null @@ -1,106 +0,0 @@ -/* grabbag - Convenience lib for various routines common to several tools - * Copyright (C) 2002-2009 Josh Coalson - * Copyright (C) 2011-2016 Xiph.Org Foundation - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; 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 "share/grabbag.h" -#include "share/compat.h" -#include "FLAC/assert.h" -#include <stdlib.h> /* for atoi() */ -#include <string.h> - -FLAC__bool grabbag__seektable_convert_specification_to_template(const char *spec, FLAC__bool only_explicit_placeholders, FLAC__uint64 total_samples_to_encode, unsigned sample_rate, FLAC__StreamMetadata *seektable_template, FLAC__bool *spec_has_real_points) -{ - unsigned i; - const char *pt; - - FLAC__ASSERT(0 != spec); - FLAC__ASSERT(0 != seektable_template); - FLAC__ASSERT(seektable_template->type == FLAC__METADATA_TYPE_SEEKTABLE); - - if(0 != spec_has_real_points) - *spec_has_real_points = false; - - for(pt = spec, i = 0; pt && *pt; i++) { - const char *q = strchr(pt, ';'); - FLAC__ASSERT(0 != q); - - if(q > pt) { - if(0 == strncmp(pt, "X;", 2)) { /* -S X */ - if(!FLAC__metadata_object_seektable_template_append_placeholders(seektable_template, 1)) - return false; - } - else if(q[-1] == 'x') { /* -S #x */ - if(total_samples_to_encode > 0) { /* we can only do these if we know the number of samples to encode up front */ - if(0 != spec_has_real_points) - *spec_has_real_points = true; - if(!only_explicit_placeholders) { - const int n = (unsigned)atoi(pt); - if(n > 0) - if(!FLAC__metadata_object_seektable_template_append_spaced_points(seektable_template, (unsigned)n, total_samples_to_encode)) - return false; - } - } - } - else if(q[-1] == 's') { /* -S #s */ - if(total_samples_to_encode > 0) { /* we can only do these if we know the number of samples to encode up front */ - FLAC__ASSERT(sample_rate > 0); - if(0 != spec_has_real_points) - *spec_has_real_points = true; - if(!only_explicit_placeholders) { - const double sec = atof(pt); - if(sec > 0.0) { - unsigned samples = (unsigned)(sec * (double)sample_rate); - /* Restrict seekpoints to two per second of audio. */ - samples = samples < sample_rate / 2 ? sample_rate / 2 : samples; - if(samples > 0) { - /* +1 for the initial point at sample 0 */ - if(!FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(seektable_template, samples, total_samples_to_encode)) - return false; - } - } - } - } - } - else { /* -S # */ - if(0 != spec_has_real_points) - *spec_has_real_points = true; - if(!only_explicit_placeholders) { - char *endptr; - const FLAC__int64 n = (FLAC__int64)strtoll(pt, &endptr, 10); - if( - (n > 0 || (endptr > pt && *endptr == ';')) && /* is a valid number (extra check needed for "0") */ - (total_samples_to_encode == 0 || (FLAC__uint64)n < total_samples_to_encode) /* number is not >= the known total_samples_to_encode */ - ) - if(!FLAC__metadata_object_seektable_template_append_point(seektable_template, (FLAC__uint64)n)) - return false; - } - } - } - - pt = ++q; - } - - if(!FLAC__metadata_object_seektable_template_sort(seektable_template, /*compact=*/true)) - return false; - - return true; -} |