--- /dev/null
+/*
+* FOXMP3
+* Copyright (c) 2006 acmesystems.it - john@acmesystems.it
+*
+* 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., 59 Temple Place, Suite 330, Boston, MA02111-1307USA
+*
+* Feedback, Bugs... info@acmesystems.it
+*
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+#include "mp3.h"
+
+
+#define MP3_PRE_BUFFER_COUNT ((128 * 1024) / MP3_CHUNK_SIZE)
+
+
+typedef struct _MP3_FILE {
+ unsigned char filename[2048];
+ MP3_DATA mp3_data;
+ FILE *fd;
+ unsigned char file_end_found;
+ MP3_FILE_ID3 *id3;
+} MP3_FILE;
+
+static MP3_FILE mp3_file;
+
+void mp3_load_id3(FILE *fp){
+ unsigned char *buf = malloc(1024);
+
+ mp3_file.id3->album[0] = '\0';
+ mp3_file.id3->artist[0] = '\0';
+ mp3_file.id3->track[0] = '\0';
+
+
+ fgets(buf, 1024, fp);
+ if( (buf[0] == 'I') &&
+ (buf[1] == 'D') &&
+ (buf[2] == '3')){
+ unsigned int id3_size;
+ unsigned int i;
+ unsigned int id3_version = buf[3];
+ id3_version <<= 8;
+ id3_version += buf[4];
+
+ id3_size = 0;
+
+ for(i = 0; i<4; i++){
+ id3_size += buf[5 + i];
+ id3_size <<= 7;
+ };
+ if(id3_version>>8 == 3){
+ unsigned int id3_pos = 10;
+ unsigned int id3_tag_size;
+ unsigned char tag_name[5];
+ unsigned char tag_data[257];
+ tag_name[4] = '\0';
+ tag_data[256] = '\0';
+ unsigned int count = 0;
+ while(count < 10){
+ strncpy(tag_name, &buf[id3_pos], 4);
+ id3_tag_size = buf[id3_pos + 4];
+ id3_tag_size <<= 8;
+ id3_tag_size = buf[id3_pos + 5];
+ id3_tag_size <<= 8;
+ id3_tag_size = buf[id3_pos + 6];
+ id3_tag_size <<= 8;
+ id3_tag_size = buf[id3_pos + 7];
+ if(id3_tag_size == 0){
+ break;
+ };
+ if(id3_tag_size > 256){
+ memcpy(&tag_data[0], &buf[id3_pos + 11] , 256);
+ } else {
+ memcpy(&tag_data[0], &buf[id3_pos + 11] ,
+ id3_tag_size -1);
+ tag_data[id3_tag_size-1] = '\0';
+ };
+ id3_pos += 10 + id3_tag_size;
+ if(strcmp(tag_name, "TPE1") == 0){
+ strncpy(mp3_file.id3->artist, tag_data, 255);
+ };
+ if(strcmp(tag_name, "TALB") == 0){
+ strncpy(mp3_file.id3->album, tag_data, 255);
+ };
+ if(strcmp(tag_name, "TIT2") == 0){
+ strncpy(mp3_file.id3->track, tag_data, 255);
+ };
+ if(id3_pos >= id3_size){
+ break;
+ };
+ count ++;
+ };
+ };
+ printf("ID3 tag found Version 2.%d.%d / size %d\n%s -- %s -- %s\n",
+ id3_version>>8,
+ id3_version&0xff,
+ id3_size,
+ mp3_file.id3->artist,
+ mp3_file.id3->album,
+ mp3_file.id3->track);
+ } else {
+ printf("No ID3 Tag was found\n");
+ };
+ free(buf);
+};
+
+
+int mp3_file_setup(unsigned char *filename, MP3_FILE_ID3 *id3){
+ unsigned int i;
+ mp3_file.id3 = id3;
+ mp3_file.file_end_found = 0;
+ strcpy(mp3_file.filename, filename);
+ mp3_file.fd = fopen(mp3_file.filename, "rb");
+ if(!mp3_file.fd){
+ mp3_file.fd = 0;
+ printf("error opening file %s\n", mp3_file.filename);
+ return MP3_ERROR;
+ };
+ printf("File %s opened Ok\n", mp3_file.filename);
+ printf("Reading id3 tag\n");
+ mp3_load_id3(mp3_file.fd);
+ fseek(mp3_file.fd, 0, SEEK_SET);
+
+ mp3_reset();
+
+ printf("Buffering MP3 Data\n");
+ mp3_file.mp3_data.state = MP3_BUFFERING;
+ for(i = 0; i < MP3_PRE_BUFFER_COUNT - 1; i++){
+ fread(mp3_file.mp3_data.mp3, MP3_CHUNK_SIZE, 1, mp3_file.fd);
+ mp3_file.mp3_data.state = MP3_PLAYING;
+ mp3_send_data_to_buffer(mp3_file.mp3_data);
+ };
+
+ printf("Starting to play file : %s\n", mp3_file.filename);
+ return MP3_OK;
+};
+
+int mp3_file_handle(void){
+ unsigned char transmit_success = 1;
+ if (!feof(mp3_file.fd)) {
+ fread(mp3_file.mp3_data.mp3, MP3_CHUNK_SIZE, 1, mp3_file.fd);
+ transmit_success = 0;
+ while(!transmit_success){
+ if(!mp3_send_data_to_buffer(mp3_file.mp3_data)){
+ usleep(1);
+ transmit_success = 0;
+ } else {
+ transmit_success = 1;
+ };
+ };
+ return MP3_OK;
+ } else {
+ if(!mp3_file.file_end_found){
+ mp3_file.mp3_data.state = MP3_BUFFER_FINISHED;
+ mp3_send_data_to_buffer(mp3_file.mp3_data);
+ printf("File end reached. Wait till kernel buffer has cleared.\n");
+ mp3_file.file_end_found = 1;
+ };
+ if(!mp3_buffer_finished()){
+ return MP3_OK;
+ } else {
+ return MP3_END;
+ };
+ };
+};
+
+int mp3_file_cleanup(void){
+ if(mp3_file.fd){
+ fclose(mp3_file.fd);
+ };
+ return MP3_OK;
+};
projects / openwrt / svn-archive / openwrt.git / blobdiff