/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2005 Alexandre Bourget * * Plugin to transform a Rockbox produced m3u playlist into something * understandable by the picky original iRiver firmware. * * Based on sort.c by the Rockbox team. * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "plugin.h" PLUGIN_HEADER static struct plugin_api* rb; int buf_size; static char *filename; static int readsize; static char *stringbuffer; static char crlf[2] = "\r\n"; int read_buffer(int offset) { int fd; fd = rb->open(filename, O_RDONLY); if(fd < 0) return 10 * fd - 1; /* Fill the buffer from the file */ rb->lseek(fd, offset, SEEK_SET); readsize = rb->read(fd, stringbuffer, buf_size); rb->close(fd); if(readsize < 0) return readsize * 10 - 2; if(readsize == buf_size) return buf_size; /* File too big */ return 0; } static int write_file(void) { char tmpfilename[MAX_PATH+1]; int fd; int rc; char *buf_ptr; char *str_begin; /* Create a temporary file */ rb->snprintf(tmpfilename, MAX_PATH+1, "%s.tmp", filename); fd = rb->creat(tmpfilename); if(fd < 0) return 10 * fd - 1; /* Let's make sure it always writes CR/LF and not only LF */ buf_ptr = stringbuffer; str_begin = stringbuffer; do { /* Transform slashes into backslashes */ if(*buf_ptr == '/') *buf_ptr = '\\'; if((*buf_ptr == '\r') || (*buf_ptr == '\n')) { /* We have no complete string ? It's only a leading \n or \r ? */ if (!str_begin) continue; /* Terminate string */ *buf_ptr = 0; /* Write our new string */ rc = rb->write(fd, str_begin, rb->strlen(str_begin)); if(rc < 0) { rb->close(fd); return 10 * rc - 2; } /* Write CR/LF */ rc = rb->write(fd, crlf, 2); if(rc < 0) { rb->close(fd); return 10 * rc - 3; } /* Reset until we get a new line */ str_begin = NULL; } else { /* We start a new line here */ if (!str_begin) str_begin = buf_ptr; } /* Next char, until ... */ } while(buf_ptr++ < stringbuffer + readsize); rb->close(fd); /* Remove the original file */ rc = rb->remove(filename); if(rc < 0) { return 10 * rc - 4; } /* Replace the old file with the new */ rc = rb->rename(tmpfilename, filename); if(rc < 0) { return 10 * rc - 5; } return 0; } enum plugin_status plugin_start(struct plugin_api* api, void* parameter) { char *buf; int rc; filename = (char *)parameter; rb = api; buf = rb->plugin_get_audio_buffer(&buf_size); /* start munching memory */ stringbuffer = buf; rb->lcd_clear_display(); rb->splash(0, true, "Converting..."); rc = read_buffer(0); if(rc == 0) { rb->lcd_clear_display(); rb->splash(0, true, "Writing..."); rc = write_file(); if(rc < 0) { rb->lcd_clear_display(); rb->splash(HZ, true, "Can't write file: %d", rc); } else { rb->lcd_clear_display(); rb->splash(HZ, true, "Done"); } } else { if(rc < 0) { rb->lcd_clear_display(); rb->splash(HZ, true, "Can't read file: %d", rc); } else { rb->lcd_clear_display(); rb->splash(HZ, true, "The file is too big"); } } return PLUGIN_OK; }