mirror of
https://github.com/Rockbox/rockbox.git
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generate valid cue files from a playlist uses remarks to store extra id3 info and display and playlist index Change-Id: I00c9f6389445bb601dde6eb8f36157044024f8cb
375 lines
11 KiB
C
375 lines
11 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2024 William Wilgus
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/* convert supplied playlist file to a .cue file */
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#include "plugin.h"
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#if defined(DEBUG) || defined(SIMULATOR)
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#define logf(...) rb->debugf(__VA_ARGS__); rb->debugf("\n")
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#elif defined(ROCKBOX_HAS_LOGF)
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#define logf rb->logf
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#else
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#define logf(...) do { } while(0)
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#endif
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#define CPS_MAX_ENTRY_SZ (4 *1024)
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#define TDINDENT " " /* prepend spaces for track data formatting */
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static struct cps
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{
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char *buffer;
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size_t buffer_sz;
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size_t buffer_index;
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int cue_fd;
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int entries;
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} cps;
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static int sprfunc(void *ptr, int letter)
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{
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/* callback for vuprintf */
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(void) ptr;
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if (cps.buffer_index < cps.buffer_sz - 1)
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{
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cps.buffer[cps.buffer_index++] = letter;
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return 1;
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}
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return -1;
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}
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void cps_printf(const char *fmt, ...)
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{
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/* NOTE! this is made for flushing the buffer to disk -- WARNING
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* Nothing is NULL terminated here unless explicitly made so.. \0 */
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va_list ap;
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va_start(ap, fmt);
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rb->vuprintf(sprfunc, NULL, fmt, ap);
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va_end(ap);
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}
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static uint32_t write_metadata_tags(struct mp3entry *id3)
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{
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/* check an ID3 and write any numeric tags and valid string tags (non empty) */
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#define ISVALID(s) (s != NULL && s[0] != '\0')
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uint32_t tag_flags = 0;
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const char *performer = rb->str(LANG_TAGNAVI_UNTAGGED);
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if (ISVALID(id3->artist))
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performer = id3->artist;
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else if (ISVALID(id3->albumartist))
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performer = id3->albumartist;
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const char *title = rb->str(LANG_TAGNAVI_UNTAGGED);
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if (ISVALID(id3->title))
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title = id3->title;
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#define PERFORMER_TITLE_SZ TDINDENT "PERFORMER \"%s\"\n" \
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TDINDENT "TITLE \"%s\"\n" \
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TDINDENT "SIZE_INFO %ld\n"
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cps_printf(PERFORMER_TITLE_SZ, performer, title, id3->filesize);
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if (ISVALID(id3->composer))
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cps_printf(TDINDENT "COMPOSER \"%s\"\n", id3->composer);
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cps_printf(TDINDENT "INDEX 01 00:00:00\n");
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#define ID3_TAG_NUM(theid3, TAGID, flag) \
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{cps_printf(TDINDENT "REM %s %lu\n", TAGID, (unsigned long)theid3);tag_flags |= flag;}
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#define ID3_TAG_STR(theid3, TAGID, flag) if (ISVALID(theid3)) \
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{cps_printf(TDINDENT "REM %s \"%s\"\n", TAGID, theid3);tag_flags |= flag;}
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ID3_TAG_STR(id3->album, "ALBUM", 0x01);
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ID3_TAG_STR(id3->albumartist, "ALBUMARTIST", 0x02);
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ID3_TAG_STR(id3->comment, "COMMENT", 0x04);
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ID3_TAG_STR(id3->genre_string, "GENRE", 0x08);
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ID3_TAG_STR(id3->disc_string, "DISC", 0x10);
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ID3_TAG_STR(id3->track_string, "TRACK", 0x20);
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ID3_TAG_STR(id3->grouping, "GROUPING", 0x40);
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ID3_TAG_STR(id3->mb_track_id, "MB_TRACK_ID", 0x80);
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ID3_TAG_STR(rb->get_codec_string(id3->codectype), "ID3_CODEC", 0x100);
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ID3_TAG_NUM(id3->discnum, "DISCNUM", 0x200);
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ID3_TAG_NUM(id3->tracknum, "TRACKNUM", 0x400);
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ID3_TAG_NUM(id3->length, "LENGTH", 0x800);
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ID3_TAG_NUM(id3->bitrate, "BITRATE", 0x1000);
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ID3_TAG_NUM(id3->frequency, "FREQUENCY", 0x2000);
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ID3_TAG_NUM(id3->track_level, "TRACK_LEVEL",0x4000);
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ID3_TAG_NUM(id3->album_level, "ALBUM_LEVEL", 0x8000);
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#undef ID3_TAG_STR
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#undef ID3_TAG_NUM
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#undef IS_VALID
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return tag_flags;
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}
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static bool current_playlist_filename_cb(const char *filename, int attr, int index, int display_index)
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{
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/* worker function for writing the actual cue data */
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int szpos = 0; /* records position of the size string */
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int namepos = 0; /* records position of the end of filename string */
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struct mp3entry id3;
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logf("found: %s", filename);
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uint32_t id3_flags = 0;
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bool have_metadata = rb->get_metadata(&id3, -1, filename);
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if (!have_metadata && !rb->file_exists(filename))
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return false;
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#define RB_ENTRY_DATA_FMT "REM RB_ENTRY_DATA " \
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"\"DISPLAY_INDEX %012u " \
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"PLAYLIST_INDEX %012u " \
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"SIZE %n%012zu TAGS %012lu\"\n"
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const char *audiotype = "WAVE"; /* everything except MP3 */
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const char *skipped = "";;
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const char *queued = "";
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size_t entry_start = cps.buffer_index; /* get start to calculate final size */
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cps_printf(RB_ENTRY_DATA_FMT, display_index, index, &szpos, 0, 0UL);
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size_t file_start = cps.buffer_index;
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cps_printf("FILE \"%s%n\"", filename, &namepos);
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if (cps.buffer[file_start + namepos - 1] == '3')
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audiotype = "MP3";
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cps_printf(" %s\n", audiotype);
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if (attr & PLAYLIST_ATTR_SKIPPED)
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skipped = TDINDENT "REM SKIPPED\n";
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if (attr & PLAYLIST_ATTR_QUEUED)
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queued = TDINDENT "REM QUEUED\n";
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cps_printf(" TRACK %d AUDIO\n%s%s", display_index, skipped, queued);
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if (have_metadata)
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id3_flags = write_metadata_tags(&id3);
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if (cps.buffer_index - entry_start < CPS_MAX_ENTRY_SZ)
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{
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/* place the write pointer at the size entry so we can update size + tags*/
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size_t index = cps.buffer_index;
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cps.buffer_index = entry_start + szpos;
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cps_printf("%012zu TAGS %012lu", (index - entry_start), id3_flags);
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cps.buffer_index = index; /* set the write pointer back at the end */
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}
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else
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{
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rb->splashf(HZ * 3, "Entry too large %s", filename);
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cps.buffer_index = entry_start;
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return false;
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}
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cps.entries++;
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return true;
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}
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static bool playlist_filename_cb(const char *filename)
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{
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/* get entries from an on-disk playlist */
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return current_playlist_filename_cb(filename, 0,
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cps.entries, cps.entries);
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}
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static bool current_playlist_get_entries(void)
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{
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/* get entries from a loaded playlist ( may have queued or skipped tracks ) */
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#if defined(HAVE_ADJUSTABLE_CPU_FREQ)
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#define cpuboost(enable) rb->cpu_boost(enable);
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#else
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#define cpuboost(enable) do{ } while(0)
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#endif
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struct playlist_track_info info;
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int count = rb->playlist_amount();
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int i, res = 0;
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logf("current playlist contains %d entries", count);
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cpuboost(true);
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long next_progress_tick = *rb->current_tick;
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for (i = 0; i < count; i++)
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{
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res = rb->playlist_get_track_info(NULL, i, &info);
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int attr = info.attr;
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int index = info.index;
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int display_index = info.display_index;
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if (res < 0 || !current_playlist_filename_cb(info.filename, attr, index, display_index))
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break;
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if (cps.buffer_index >= (cps.buffer_sz - CPS_MAX_ENTRY_SZ))
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{
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logf("Buffer full, writing to disk");
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rb->write(cps.cue_fd, cps.buffer, cps.buffer_index);
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cps.buffer_index = 0;
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}
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if (TIME_AFTER(*rb->current_tick, next_progress_tick))
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{
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rb->splash_progress(i, count, "Processing current playlist %d", i);
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int action = rb->get_action(CONTEXT_STD, TIMEOUT_NOBLOCK);
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if (action == ACTION_STD_CANCEL)
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{
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res = -10;
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break;
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}
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if (rb->default_event_handler(action) == SYS_USB_CONNECTED)
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{
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cpuboost(false);
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return PLUGIN_USB_CONNECTED;
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}
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next_progress_tick = *rb->current_tick + HZ / 2;
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}
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rb->yield();
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}
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cpuboost(false);
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return res >= 0;
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#undef cpuboost
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}
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static void init_new_cue(const char *playlist_filename)
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{
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if (cps.cue_fd >= 0)
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{
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rb->lseek(cps.cue_fd, 0, SEEK_SET);
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rb->fdprintf(cps.cue_fd, "REM COMMENT \"generated by Rockbox version: " \
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"%s\"\n", rb->rbversion);
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rb->fdprintf(cps.cue_fd, "TITLE \"%s\"\n", playlist_filename); /* top level TITLE */
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}
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}
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static void finalize_new_cue(void)
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{
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rb->write(cps.cue_fd, "\n", 1);
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rb->close(cps.cue_fd);
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}
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static int create_new_cue(const char *filename)
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{
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char buf[MAX_PATH];
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if (!filename)
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filename = "/Playlists/current.cue";
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const char *dot = rb->strrchr(filename, '.');
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int dotpos = 0;
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if (dot)
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dotpos = dot - filename;
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rb->snprintf(buf, sizeof(buf), "%.*s.cue", dotpos, filename);
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cps.cue_fd = rb->open(buf, O_WRONLY|O_CREAT|O_TRUNC, 0666);
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init_new_cue(filename);
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return cps.cue_fd;
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}
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enum plugin_status plugin_start(const void* parameter)
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{
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bool res;
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rb->splash(HZ*2, ID2P(LANG_WAIT));
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const char *filename = parameter;
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if (create_new_cue(filename) < 0)
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{
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rb->splashf(HZ, "creat() failed: %d", cps.cue_fd);
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return PLUGIN_ERROR;
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}
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cps.buffer = rb->plugin_get_buffer(&cps.buffer_sz);
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if (cps.buffer != NULL)
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{
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cps.buffer_index = 0;
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#ifdef STORAGE_WANTS_ALIGN
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/* align start and length for DMA */
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STORAGE_ALIGN_BUFFER(cps.buffer, cps.buffer_sz);
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#else
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/* align start and length to 32 bit */
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ALIGN_BUFFER(cps.buffer, cps.buffer_sz, 4);
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#endif
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}
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if (cps.buffer == NULL|| cps.buffer_sz < CPS_MAX_ENTRY_SZ)
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{
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rb->splashf(HZ, "No Buffers Available :( ");
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return PLUGIN_ERROR;
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}
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if (filename && filename[0])
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res = rb->playlist_entries_iterate(filename, NULL, &playlist_filename_cb);
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else
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res = current_playlist_get_entries();
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if (res)
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{
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if (cps.buffer_index > 0)
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{
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rb->write(cps.cue_fd, cps.buffer, cps.buffer_index);
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cps.buffer_index = 0;
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}
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rb->splashf(HZ * 2,
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"Playist parsing SUCCESS %d entries written", cps.entries);
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}
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else
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{
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rb->splashf(HZ * 2, "Playist parsing FAILED after %d entries", cps.entries);
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}
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finalize_new_cue();
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if (!res)
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return PLUGIN_ERROR;
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return PLUGIN_OK;
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}
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/*
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#CUE FORMAT
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CATALOG
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CDTEXTFILE
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FILE
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FLAGS
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INDEX
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ISRC
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PERFORMER
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POSTGAP
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PREGAP
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REM
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SONGWRITER
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TITLE
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TRACK
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#CD-TEXT https://wyday.com/cuesharp/specification.php
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ARRANGER
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COMPOSER
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DISC_ID
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GENRE
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ISRC
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MESSAGE
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PERFORMER
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SONGWRITER
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TITLE
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TOC_INFO
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TOC_INFO2
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UPC_EAN
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SIZE_INFO
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*/
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