Mpg123Input::Mpg123Input(const QString &fileName)
{
handle=new Handle;
QByteArray fName=QFile::encodeName(fileName);
bool ok=false;
int result;
handle->mpg123 = mpg123_new(NULL, &result);
if (handle->mpg123 &&
MPG123_OK==mpg123_open(handle->mpg123, fName.constData()) &&
MPG123_OK==mpg123_getformat(handle->mpg123, &handle->rate, &handle->channels, &handle->encoding) &&
MPG123_OK==mpg123_format_none(handle->mpg123) &&
MPG123_OK==mpg123_format(handle->mpg123, handle->rate, handle->channels, MPG123_ENC_FLOAT_32)) {
mpg123_close(handle->mpg123);
if (MPG123_OK==mpg123_open(handle->mpg123, fName.constData()) &&
MPG123_OK==mpg123_getformat(handle->mpg123, &handle->rate, &handle->channels, &handle->encoding)) {
ok=true;
}
}
if (!ok) {
if (handle->mpg123) {
mpg123_close(handle->mpg123);
mpg123_delete(handle->mpg123);
handle->mpg123 = NULL;
}
delete handle;
handle = 0;
}
}
VALUE rb_mpg123_new(VALUE klass, VALUE filename, VALUE decideRate) {
printf("Made it: 1\n");
int err = MPG123_OK;
mpg123_handle *mh;
printf("mh: "); printf("%d", mh); printf("\n");
VALUE mpg123;
long rate;
rate = decideRate;
printf("rate: "); printf("%d", rate); printf("\n");
int channels, encoding;
printf("Made it: 2\n");
printf("rate: "); printf("%d", rate); printf("\n");
Check_Type(filename, T_STRING);
printf("Made it: 3\n");
printf("rate: "); printf("%d", rate); printf("\n");
if ((mh = mpg123_new(NULL, &err)) == NULL) {
rb_raise(rb_eStandardError, "%s", mpg123_plain_strerror(err));
}
printf("Made it: 4\n");
printf("rate: "); printf("%d", rate); printf("\n");
mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_FORCE_FLOAT, 0.);
printf("mpg123_open is: ");
printf("%d", mpg123_open(mh, (char*) RSTRING_PTR(filename)));
printf("\n");
printf("mh: "); printf("%d", mh); printf("\n");
printf("rate: "); printf("%d", rate); printf("\n");
printf("channels: "); printf("%d", channels); printf("\n");
printf("encoding: "); printf("%d", encoding); printf("\n");
printf("mpg123_getformat is: ");
printf("%d", mpg123_getformat(mh, &rate, &channels, &encoding));
printf("\n");
printf("MPG123_OK is: ");
printf("%d", MPG123_OK);
printf("\n");
if (mpg123_open(mh, (char*) RSTRING_PTR(filename)) != MPG123_OK ||
mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK) {
rb_raise(rb_eStandardError, "%s", mpg123_strerror(mh));
}
printf("Made it: 5");
if (encoding != MPG123_ENC_FLOAT_32) {
rb_raise(rb_eStandardError, "bad encoding");
}
printf("Made it: 6");
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
printf("Made it: 7");
return Data_Wrap_Struct(rb_cMpg123, 0, cleanup, mh);
}
void *
in_mp3_open(char *file)
{
mpg123_handle *m;
int channels, encoding, r;
long rate;
channels = encoding = 0;
rate = 0;
m = mpg123_new(NULL, &r);
assert(m != NULL);
/* verbosity */
mpg123_param(m, MPG123_VERBOSE, 1, 0);
r = mpg123_open(m, file);
if (r != MPG123_OK)
return NULL;
assert(m != NULL);
assert(mpg123_getformat(m, &rate, &channels, &encoding) == MPG123_OK);
mpg123_format_none(m);
mpg123_format(m, rate, channels, encoding);
return m;
}
int test_whence(const char* path, int scan_before)
{
int err = MPG123_OK;
mpg123_handle* mh = NULL;
off_t length, pos;
mh = mpg123_new(NULL, &err );
if(mh == NULL) return -1;
err = mpg123_open(mh, path );
if(err != MPG123_OK) return -1;
if(scan_before) mpg123_scan(mh);
pos = mpg123_seek( mh, 0, SEEK_END);
if(pos < 0){ error1("seek failed: %s", mpg123_strerror(mh)); return -1; }
pos = mpg123_tell(mh);
length = mpg123_length(mh);
/* Later: Read samples and compare different whence values with identical seek positions. */
mpg123_close(mh);
mpg123_delete(mh);
fprintf(stdout, "length %"OFF_P" vs. pos %"OFF_P"\n", length, pos);
return (pos == length) ? 0 : -1;
}
bool ofxSoundFile::mpg123Open(string path){
int err;
mp3File = mpg123_new(NULL,&err);
mpg123_param(mp3File, MPG123_ADD_FLAGS, MPG123_FORCE_FLOAT, 0.);
if(mpg123_open(mp3File,path.c_str())!=MPG123_OK){
ofLogError() << "ofxSoundFile: couldnt read " + path;
return false;
}
int encoding;
long int rate;
mpg123_getformat(mp3File,&rate,&channels,&encoding);
if(encoding!=MPG123_ENC_SIGNED_16 && encoding != MPG123_ENC_FLOAT_32){
ofLogError() << "ofxSoundFile: unsupported encoding";
return false;
}
mpg123_format_none(mp3File);
mpg123_format(mp3File, rate, channels, encoding);
samplerate = rate;
mpg123_seek(mp3File,0,SEEK_END);
samples = mpg123_tell(mp3File);
mpg123_seek(mp3File,0,SEEK_SET);
bitDepth = 16; //TODO:get real bitdepth;.
}
void MusicPlayer::play(const char *filename)
{
#ifdef USE_OGG
stb_vorbis_close(v);
stb_vorbis_alloc t;
t.alloc_buffer=this->buf;
t.alloc_buffer_length_in_bytes=STB_BUFSIZE;
// stb_vorbis has char* pointer even though it is not really writing to buffer
v = stb_vorbis_open_filename((char *)filename, &error, &t);
#endif
#ifdef USE_MP3
mpg123_close(mh);
error = mpg123_open(mh, filename);
if (!error)
{
error = mpg123_getformat(mh, &rate, &channels, &encoding);
rate = AUDIO_FREQUENCY;
channels = 2;
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
}
#endif
}
void input_mpg123::open(std::string path)
{
int err;
int encoding;
handle = mpg123_new(NULL, &err);
if (handle == NULL) {
throw input_error(mpg123_plain_strerror(err));
}
if ((err = mpg123_open(handle, path.c_str())) != MPG123_OK) {
throw input_error(mpg123_plain_strerror(err));
}
if ((err = mpg123_getformat(handle, &_rate, &_channels, &encoding)) != MPG123_OK) {
throw input_error(mpg123_plain_strerror(err));
}
read_metadata();
/* force 16 bit format */
encoding = MPG123_ENC_SIGNED_16;
mpg123_format_none(handle);
mpg123_format(handle, _rate, _channels, encoding);
double seconds_left;
if ((err = mpg123_position(handle, 0, 0, NULL, NULL, NULL, &seconds_left)) != MPG123_OK) {
throw input_error(mpg123_plain_strerror(err));
}
this->_encoding = encoding;
this->_length = seconds_left;
}
MP3Decoder::MP3Decoder(const char* filename)
{
f = fopen(filename,"rb");
fseek(f,0,SEEK_END);
size_t size = ftell(f);
cbuf = (uchar*)malloc(size*24);
size_t buffer_size = 0;
size_t done = 0;
rate = 0;
channels = 0;
encoding = 0;
int err = MPG123_OK;
err = mpg123_init();
if(err != MPG123_OK || (mh = mpg123_new(NULL, &err)) == NULL)
{
QMessageBox::critical(0,QString("MP3 decoding error!"),QString("Basic setup goes wrong: ")+QString(mpg123_plain_strerror(err)));
cleanup(mh);
return ;
}
/* Let mpg123 work with the file, that excludes MPG123_NEED_MORE messages. */
if( mpg123_open(mh, filename) != MPG123_OK
/* Peek into track and get first output format. */
|| mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK )
{
QMessageBox::critical(0,QString("MP3 decoding error!"),QString("Error decoding mp3 file: ")+QString(mpg123_strerror(mh)));
cleanup(mh);
return ;
}
if(encoding != MPG123_ENC_SIGNED_16 && encoding != MPG123_ENC_FLOAT_32)
{ /* Signed 16 is the default output format anyways; it would actually by only different if we forced it.
So this check is here just for this explanation. */
cleanup(mh);
QMessageBox::critical(0,QString("MP3 decoding error!"),"Bad encoding: 0x"+QString::number(encoding,16));
return;
}
/* Ensure that this output format will not change (it could, when we allow it). */
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
buffer_size = mpg123_outblock(mh);
cdone=0;
buffer = (unsigned char*)malloc( buffer_size );
do
{
err = mpg123_read( mh, buffer, buffer_size, &done );
if(done<1)qDebug()<<"Error while reading mp3: "<<mpg123_errcode(mh);
else memcpy(cbuf+cdone,buffer,done);
cdone+=done;
} while (err==MPG123_OK);
cbuf[cdone-1]=0;
if(err != MPG123_DONE){
fprintf( stderr, "Warning: Decoding ended prematurely because: %s\n",
err == MPG123_ERR ? mpg123_strerror(mh) : mpg123_plain_strerror(err) );
QMessageBox::critical(0,QString("MP3 decoding error!"),QString("MP3 Decoding ended prematurely: %1").arg(err == MPG123_ERR ? mpg123_strerror(mh) : mpg123_plain_strerror(err) ));
return;
}
}
//------------------------------------------------------------
bool ofOpenALSoundPlayer_TimelineAdditions::mpg123ReadFile(string path,vector<short> & buffer,vector<float> & fftAuxBuffer){
int err = MPG123_OK;
mpg123_handle * f = mpg123_new(NULL,&err);
if(mpg123_open(f,path.c_str())!=MPG123_OK){
ofLog(OF_LOG_ERROR,"ofOpenALSoundPlayer_TimelineAdditions: couldnt read " + path);
return false;
}
int encoding;
long int rate;
mpg123_getformat(f,&rate,&channels,&encoding);
if(encoding!=MPG123_ENC_SIGNED_16){
ofLog(OF_LOG_ERROR,"ofOpenALSoundPlayer_TimelineAdditions: unsupported encoding");
return false;
}
samplerate = rate;
size_t done=0;
size_t buffer_size = mpg123_outblock( f );
buffer.resize(buffer_size/2);
while(mpg123_read(f,(unsigned char*)&buffer[buffer.size()-buffer_size/2],buffer_size,&done)!=MPG123_DONE){
buffer.resize(buffer.size()+buffer_size/2);
};
buffer.resize(buffer.size()-(buffer_size/2-done/2));
mpg123_close(f);
mpg123_delete(f);
fftAuxBuffer.resize(buffer.size());
for(int i=0;i<(int)buffer.size();i++){
fftAuxBuffer[i] = float(buffer[i])/32565.f;
}
duration = float(buffer.size()/channels) / float(samplerate);
return true;
}
//------------------------------------------------------------
bool ofOpenALSoundPlayer::mpg123ReadFile(string path,vector<short> & buffer,vector<float> & fftAuxBuffer){
int err = MPG123_OK;
mpg123_handle * f = mpg123_new(NULL,&err);
if(mpg123_open(f,path.c_str())!=MPG123_OK){
ofLogError("ofOpenALSoundPlayer") << "mpg123ReadFile(): couldn't read \"" << path << "\"";
return false;
}
mpg123_enc_enum encoding;
long int rate;
mpg123_getformat(f,&rate,&channels,(int*)&encoding);
if(encoding!=MPG123_ENC_SIGNED_16){
ofLogError("ofOpenALSoundPlayer") << "mpg123ReadFile(): " << getMpg123EncodingString(encoding)
<< " encoding for \"" << path << "\"" << " unsupported, expecting MPG123_ENC_SIGNED_16";
return false;
}
samplerate = rate;
size_t done=0;
size_t buffer_size = mpg123_outblock( f );
buffer.resize(buffer_size/2);
while(mpg123_read(f,(unsigned char*)&buffer[buffer.size()-buffer_size/2],buffer_size,&done)!=MPG123_DONE){
buffer.resize(buffer.size()+buffer_size/2);
};
buffer.resize(buffer.size()-(buffer_size/2-done/2));
mpg123_close(f);
mpg123_delete(f);
fftAuxBuffer.resize(buffer.size());
for(int i=0;i<(int)buffer.size();i++){
fftAuxBuffer[i] = float(buffer[i])/32565.f;
}
duration = float(buffer.size()/channels) / float(samplerate);
return true;
}
VALUE rb_mpg123_new(VALUE klass, VALUE filename) {
int err = MPG123_OK;
mpg123_handle *mh;
VALUE mpg123;
long rate;
int channels, encoding;
Check_Type(filename, T_STRING);
if ((mh = mpg123_new(NULL, &err)) == NULL) {
rb_raise(rb_eStandardError, "%s", mpg123_plain_strerror(err));
}
mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_FORCE_FLOAT, 0.);
if (mpg123_open(mh, (char*) RSTRING_PTR(filename)) != MPG123_OK ||
mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK) {
rb_raise(rb_eStandardError, "%s", mpg123_strerror(mh));
}
if (encoding != MPG123_ENC_FLOAT_32) {
rb_raise(rb_eStandardError, "bad encoding");
}
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
VALUE new_mpg123 = Data_Wrap_Struct(rb_cMpg123, 0, cleanup, mh);
rb_iv_set(new_mpg123, "@file", filename);
return new_mpg123;
}
int main(int argc, char **argv)
{
mpg123_handle *m;
int i;
if(argc < 2)
{
fprintf(stderr, "\nI will give you the estimated and exact sample lengths of MPEG audio files.\n");
fprintf(stderr, "\nUsage: %s <mpeg audio file list>\n\n", argv[0]);
return -1;
}
mpg123_init();
m = mpg123_new(NULL, NULL);
mpg123_param(m, MPG123_RESYNC_LIMIT, -1, 0); /* New in library version 0.0.1 . */
for(i = 1; i < argc; ++i)
{
off_t a, b;
mpg123_open(m, argv[i]);
a = mpg123_length(m);
mpg123_scan(m);
b = mpg123_length(m);
mpg123_close(m);
printf("File %i: estimated %li vs. scanned %li\n", i, (long)a, (long)b);
}
mpg123_delete(m);
mpg123_exit();
return 0;
}
JNIEXPORT jlong JNICALL Java_de_mpg123_MPG123Decoder_checkFormat
(JNIEnv *env, jobject self, jstring path_to_file)
{
// Error code
int err = MPG123_OK;
// Properties
int channels;
long rate;
long num_samples;
int encoding;
size_t buffer_size;
mpg123_handle* mh;
// Create new mpg123 handle
mh = mpg123_new(NULL, &err);
__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "mpg123_new: %p", mh);
if (err == MPG123_OK && mh != NULL) {
// Get the utf-8 string
const char *file_path = env->GetStringUTFChars(path_to_file, JNI_FALSE);
__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "Sound file path: %s", file_path);
err = mpg123_open(mh, file_path);
if (err == MPG123_OK) {
err = mpg123_getformat(mh, &rate, &channels, &encoding);
if (err == MPG123_OK) {
return MPG123_OK;
} else {
__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "Error: mpg123_getformat err: %i",
err);
__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "Trouble with mpg123: %s",
mpg123_strerror(mh));
return MPG123_ERR;
}
} else {
__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, "Error: mpg123_open err: %i", err);
return MPG123_ERR;
}
}
__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG,
"Error: no proper initialization of mpg123lib.");
return MPG123_ERR;
}
void mpgplayer::run()
{
if(mpg123_init() != MPG123_OK)
qDebug("Error initilizing mpg123");
const char **test = mpg123_supported_decoders();
int error;
mpg123_handle *mh = mpg123_new(test[0],&error);
if(!mpg123_feature(MPG123_FEATURE_DECODE_LAYER3))
{
qDebug("You do not seem to have mp3 decoding support");
return;
}
mpg123_format_none(mh);
if(mpg123_format(mh,samplerate,MPG123_STEREO,MPG123_ENC_SIGNED_16)!=MPG123_OK)
qDebug("Error in initilizing format decoder");
qDebug(test[0]);
mpg123_open(mh,"/home/eli/Projects/groove-evan/Animal.mp3");
net = TData;
pa_simple *s;
pa_sample_spec ss;
ss.format = PA_SAMPLE_S16NE;
ss.rate = samplerate;
ss.channels = 2;
s =pa_simple_new(NULL,"Groove",PA_STREAM_PLAYBACK ,NULL,"Music",&ss,NULL,NULL,NULL);
unsigned char bytes[1024];
size_t bsize = 1024;
size_t done = 0;
bool stop = false;
playing=true;
while(!stop)
{
switch(net)
{
case TWait: usleep(100); break;
case TData:
if(mpg123_read(mh,bytes,bsize,&done)==MPG123_DONE)
{
net=TFinish;
}
pa_simple_write(s,bytes,done,&error);
break;
case TAbort:
stop = true;
break;
case TFinish:
pa_simple_drain(s,&error);
stop = true;
break;
default: break;
}
}
qDebug("Finsihed playback");
pa_simple_free(s);
mpg123_exit();
}
void mp3_init(char *mp3_file_0, char *mp3_file_1)
{
int err;
int channels, encoding;
long rate;
mpg123_init();
mh_0 = mpg123_new(NULL, &err);
mp3_buffer_size = mpg123_outblock(mh_0);
mp3_buffer = malloc(mp3_buffer_size * sizeof(unsigned char));
mpg123_open(mh_0, mp3_file_0);
mpg123_getformat(mh_0, &rate, &channels, &encoding);
printf("0: %s: rate: %ld channels: %d encoding: %d\n", mp3_file_0, rate, channels, encoding);
memset(&mp3_format, 0, sizeof(mp3_format));
mp3_format.bits = mpg123_encsize(encoding) * 8;
mp3_format.channels = channels;
mp3_format.rate = rate;
// -- Open driver -- //
mp3_device_0 = ao_open_live(ao_default_driver_id(), &mp3_format, NULL); // no options
if (mp3_device_0 == NULL) {
fprintf(stderr, "Error opening device 0 .\n");
}
mh_1 = mpg123_new(NULL, &err);
mpg123_open(mh_1, mp3_file_1);
mpg123_getformat(mh_1, &rate, &channels, &encoding);
printf("1: %s: rate: %ld channels: %d encoding: %d\n", mp3_file_1, rate, channels, encoding);
memset(&mp3_format, 0, sizeof(mp3_format));
mp3_format.bits = mpg123_encsize(encoding) * 8;
mp3_format.channels = channels;
mp3_format.rate = rate;
// -- Open driver -- //
mp3_device_1 = ao_open_live(ao_default_driver_id(), &mp3_format, NULL); // no options
if (mp3_device_1 == NULL) {
fprintf(stderr, "Error opening device 1.\n");
}
}
JNIEXPORT jlong JNICALL Java_com_axelby_podax_player_MPG123_openFile
(JNIEnv *env, jclass c, jstring filename)
{
int err = MPG123_OK;
mpg123_handle *mh = mpg123_new(NULL, &err);
if (err == MPG123_OK && mh != NULL)
{
MP3File* mp3 = mp3file_init(mh);
const char* fileString = (*env)->GetStringUTFChars(env, filename, NULL);
err = mpg123_open(mh, fileString);
(*env)->ReleaseStringUTFChars(env, filename, fileString);
if (err == MPG123_OK)
{
int encoding;
if (mpg123_getformat(mh, &mp3->rate, &mp3->channels, &encoding) == MPG123_OK)
{
if(encoding == MPG123_ENC_SIGNED_16)
{
// Signed 16 is the default output format anyway;
// it would actually by only different if we forced it.
// So this check is here just for this explanation.
// Ensure that this output format will not change
// (it could, when we allow it).
mpg123_format_none(mh);
mpg123_format(mh, mp3->rate, mp3->channels, encoding);
mp3->buffer_size = mpg123_outblock(mh);
mp3->buffer = (unsigned char*)malloc(mp3->buffer_size);
mp3->num_samples = mpg123_length(mh);
mp3->samples_per_frame = mpg123_spf(mh);
mp3->secs_per_frame = mpg123_tpf(mh);
if (mp3->num_samples == MPG123_ERR || mp3->samples_per_frame < 0)
mp3->num_frames = 0;
else
mp3->num_frames = mp3->num_samples / mp3->samples_per_frame;
if (mp3->num_samples == MPG123_ERR || mp3->samples_per_frame < 0 || mp3->secs_per_frame < 0)
mp3->duration = 0;
else
mp3->duration = mp3->num_samples / mp3->samples_per_frame * mp3->secs_per_frame;
return (jlong)mp3;
}
}
}
mp3file_delete(mp3);
} else {
__android_log_write(ANDROID_LOG_INFO, "podax-jni", mpg123_plain_strerror(err));
}
return 0;
}
bool Mp3::openFromFile(const std::string& filename)
{
stop();
if (myBuffer)
delete [] myBuffer;
if(myHandle)
mpg123_close(myHandle);
mpg123_param(myHandle, MPG123_RESYNC_LIMIT, -1, 0);
#ifndef DEBUG
mpg123_param(myHandle, MPG123_ADD_FLAGS, 32 , 0);
#endif
if (mpg123_open(myHandle, filename.c_str()) != MPG123_OK)
{
std::cerr << mpg123_strerror(myHandle) << std::endl;
return false;
}
//This should improve myDuration calculation, but generates frankenstein streams¿?
//Warning: Real sample count 9505152 differs from given gapless sample count -1152. Frankenstein stream
if(mpg123_scan(myHandle) != MPG123_OK) {
std::cerr << "Failed when scanning " << std::endl;
return false;
}
long rate = 0;
int channels = 0, encoding = 0;
if (mpg123_getformat(myHandle, &rate, &channels, &encoding) != MPG123_OK)
{
std::cerr << "Failed to get format information for 464480e9ee6eb73bc2b768d7e3d7865aa432fc34quot;" << filename << "464480e9ee6eb73bc2b768d7e3d7865aa432fc34quot;" << std::endl;
return false;
}
myDuration = sf::Time(sf::milliseconds(1 + 1000*mpg123_length(myHandle)/rate));
myBufferSize = mpg123_outblock(myHandle);
myBuffer = new unsigned char[myBufferSize];
if (!myBuffer)
{
std::cerr << "Failed to reserve memory for decoding one frame for 464480e9ee6eb73bc2b768d7e3d7865aa432fc34quot;" << filename << "464480e9ee6eb73bc2b768d7e3d7865aa432fc34quot;" << std::endl;
return false;
}
sf::SoundStream::initialize(channels, rate);
return true;
}
static inline jlong wrapped_Java_com_badlogic_gdx_audio_io_Mpg123Decoder_openFile
(JNIEnv* env, jobject object, jstring obj_filename, char* filename) {
//@line:111
mpg123_handle *mh = NULL;
int channels = 0, encoding = 0;
long rate = 0;
int err = MPG123_OK;
err = mpg123_init();
if( err != MPG123_OK || (mh = mpg123_new(NULL, &err)) == NULL
|| mpg123_open(mh, filename) != MPG123_OK
|| mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK )
{
fprintf( stderr, "Trouble with mpg123: %s\n",
mh==NULL ? mpg123_plain_strerror(err) : mpg123_strerror(mh) );
cleanup(mh);
return 0;
}
if(encoding != MPG123_ENC_SIGNED_16)
{
// Signed 16 is the default output format anyways; it would actually by only different if we forced it.
// So this check is here just for this explanation.
cleanup(mh);
return 0;
}
// Ensure that this output format will not change (it could, when we allow it).
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
size_t buffer_size = mpg123_outblock( mh );
unsigned char* buffer = (unsigned char*)malloc(buffer_size);
size_t done = 0;
int samples = 0;
Mp3File* mp3 = new Mp3File();
mp3->handle = mh;
mp3->channels = channels;
mp3->rate = rate;
mp3->buffer = buffer;
mp3->buffer_size = buffer_size;
int length = mpg123_length( mh );
if( length == MPG123_ERR )
mp3->length = 0;
else
mp3->length = length / rate;
return (jlong)mp3;
}
int GetMusicStatus()
{
char buff[MAX_PATH] = {0};
DWORD ret;
_snprintf(buff, MAX_PATH, "%s\\\\%s", dir, fileInfo.cFileName);
ret = mpg123_open(mh, buff);
if(ret != MPG123_OK)
{
return 1;
}
mpg123_seek_frame(mh, lastFrame, SEEK_SET);
return 0;
}
int open_file()
{
if( mpg123_open(m, filename) == MPG123_OK
&&
mpg123_getformat(m, NULL, &channels, NULL) == MPG123_OK )
{
printf("Channels: %i\n", channels);
return 0;
}
else
{
printf("Opening file failed: %s\n", mpg123_strerror(m));
return -1;
}
}
//------------------------------------------------------------
bool ofOpenALSoundPlayer::mpg123Stream(string path,vector<short> & buffer,vector<float> & fftAuxBuffer){
if(!mp3streamf){
int err = MPG123_OK;
mp3streamf = mpg123_new(NULL,&err);
if(mpg123_open(mp3streamf,path.c_str())!=MPG123_OK){
mpg123_close(mp3streamf);
mpg123_delete(mp3streamf);
ofLogError("ofOpenALSoundPlayer") << "mpg123Stream(): couldn't read \"" << path << "\"";
return false;
}
long int rate;
mpg123_getformat(mp3streamf,&rate,&channels,(int*)&stream_encoding);
if(stream_encoding!=MPG123_ENC_SIGNED_16){
ofLogError("ofOpenALSoundPlayer") << "mpg123Stream(): " << getMpg123EncodingString(stream_encoding)
<< " encoding for \"" << path << "\"" << " unsupported, expecting MPG123_ENC_SIGNED_16";
return false;
}
samplerate = rate;
mp3_buffer_size = mpg123_outblock( mp3streamf );
mpg123_seek(mp3streamf,0,SEEK_END);
off_t samples = mpg123_tell(mp3streamf);
duration = float(samples/channels) / float(samplerate);
mpg123_seek(mp3streamf,0,SEEK_SET);
}
int curr_buffer_size = mp3_buffer_size;
if(speed>1) curr_buffer_size *= (int)round(speed);
buffer.resize(curr_buffer_size);
fftAuxBuffer.resize(buffer.size());
size_t done=0;
if(mpg123_read(mp3streamf,(unsigned char*)&buffer[0],curr_buffer_size*2,&done)==MPG123_DONE){
setPosition(0);
buffer.resize(done/2);
fftAuxBuffer.resize(done/2);
if(!bLoop) stopThread();
stream_end = true;
}
for(int i=0;i<(int)buffer.size();i++){
fftAuxBuffer[i] = float(buffer[i])/32565.f;
}
return true;
}
int main(int argc, char **argv)
{
int err;
int ret = 0;
mpg123_handle *mh;
mpg123_id3v2 *id3;
if(argc < 2)
{
printf("Gimme a MPEG file name...\n");
return 0;
}
mpg123_init();
mh = mpg123_new(NULL, &err);
if(err != MPG123_OK) goto badend;
mpg123_param(mh, MPG123_ADD_FLAGS, MPG123_PLAIN_ID3TEXT, 0.);
err = mpg123_open(mh, argv[1]);
if(err != MPG123_OK) goto badend;
err = mpg123_scan(mh);
if(err != MPG123_OK) goto badend;
err = mpg123_id3(mh, NULL, &id3);
if(err != MPG123_OK) goto badend;
if(id3 == NULL)
{
error("No ID3 data found.");
goto badend;
}
print_field("artist", id3->artist);
print_field("title", id3->title);
print_field("album", id3->album);
print_field("comment", id3->comment);
goto end;
badend:
ret = -1;
end:
mpg123_delete(mh);
mpg123_exit();
return ret;
}
bool Mp3Stream::open(string path)
{
// open file
int result = mpg123_open(mh, path.c_str());
if (result != MPG123_OK)
{
LOG4CXX_ERROR(narratorMP3StreamLog, "File " << path << " could not be opened");
return false;
}
// get rate, channels and encoding
mpg123_getformat(mh, &mRate, &mChannels, &mEncoding);
LOG4CXX_TRACE(narratorMP3StreamLog, "MP3 open with encoding " << mEncoding);
isOpen = true;
return true;
}
/**
* @name Reset delle variabili Decoder
*
* Questa funzione inizializza le variabili necessarie in fase di riproduzione per il decoder
*/
void resetMp3(char * song)
{
if (buffer!=NULL) {freeMp3();}
int err;
int channels, encoding;
long rate;
/* Inizialize */
mpg123_init();
mh = mpg123_new(NULL, &err);
buffer_size = mpg123_outblock(mh);
buffer = (unsigned char*) malloc(buffer_size * sizeof(unsigned char));
/* open the file and get the decoding format */
mpg123_open(mh,song);
mpg123_getformat(mh, &rate, &channels, &encoding);
/* set the output format and open the output device */
int bits=(mpg123_encsize(encoding) * BITS);
initAudioDev(bits,rate,channels);
}
static void init_dev(void)
{
int channels, encoding;
long rate;
ao_sample_format format;
if (dev) ao_close(dev);
mpg123_open(mh, sound_file);
mpg123_getformat(mh, &rate, &channels, &encoding);
/* set the output format and open the output device */
format.bits = mpg123_encsize(encoding) * BITS;
format.rate = rate;
format.channels = channels;
format.byte_format = AO_FMT_NATIVE;
format.matrix = 0;
dev = ao_open_live(driver, &format, NULL);
}
int
MP3Decoder_init(decoders_MP3Decoder *self,
PyObject *args, PyObject *kwds)
{
char *filename;
int error;
self->handle = NULL;
self->channels = 0;
self->rate = 0;
self->encoding = 0;
self->closed = 0;
self->audiotools_pcm = NULL;
if (!PyArg_ParseTuple(args, "s", &filename))
return -1;
if ((self->handle = mpg123_new(NULL, &error)) == NULL) {
PyErr_SetString(PyExc_ValueError, "error initializing decoder");
return -1;
}
if ((error = mpg123_open(self->handle, filename)) != MPG123_OK) {
PyErr_SetString(PyExc_ValueError, "error opening file");
return -1;
}
if ((error = mpg123_getformat(self->handle,
&(self->rate),
&(self->channels),
&(self->encoding))) != MPG123_OK) {
PyErr_SetString(PyExc_ValueError, "error getting file format");
return -1;
}
if ((self->audiotools_pcm = open_audiotools_pcm()) == NULL)
return -1;
return 0;
}
int Waveform::GetLengthOfMusicFileInMS(const wxString &filename)
{
mpg123_handle *mh;
int err;
int channels, encoding;
long rate;
mpg123_init();
mh = mpg123_new(NULL, &err);
/* open the file and get the decoding format */
mpg123_open(mh, filename.c_str());
mpg123_getformat(mh, &rate, &channels, &encoding);
int bits = mpg123_encsize(encoding);
/* Get Track Size */
int trackSize = GetTrackSize(mh,bits,channels);
mpg123_close(mh);
mpg123_delete(mh);
mpg123_exit();
float seconds = (float)trackSize * ((float)1/(float)rate);
return (int)(seconds * (float)1000);
}
audioBuffer loadMp3File(const char* filename)
{
audioBuffer encBuffer;
mpg123_handle *mh;
unsigned char *buffer;
size_t buffer_size;
size_t done;
int err;
int channels, encoding;
long rate;
//inizialize mpg123 and its handler
mpg123_init();
mh = mpg123_new(NULL, &err);
buffer_size = mpg123_outblock(mh);
buffer = (unsigned char*) malloc(buffer_size * sizeof(unsigned char));
mpg123_open(mh, filename);
mpg123_getformat(mh, &rate, &channels, &encoding);
int m_bits = mpg123_encsize(encoding);
int m_rate = rate;
int m_channels = channels;
//loads decoded file in memory
for (int totalBtyes = 0 ; mpg123_read(mh, buffer, buffer_size, &done) == MPG123_OK ; ) {
totalBtyes += done;
}
encBuffer.bufPointer = buffer;
//deallocates mpg123 memory
mpg123_close(mh);
mpg123_delete(mh);
mpg123_exit();
return encBuffer;
}
bool FileFormatMP3::Open(QString& filename)
{
_filePosition = 0;
if( mpg123_open(_mpg123, filename.toStdString().c_str()) != MPG123_OK ||
mpg123_getformat(_mpg123, &_sampleRate, &_channels, &_encoding) != MPG123_OK )
{
QMessageBox(QMessageBox::Critical, filename, QString("Could not open file."), QMessageBox::Ok);
return false;
}
if(_encoding != MPG123_ENC_SIGNED_16 && _encoding != MPG123_ENC_FLOAT_32)
{
//cleanup(_mpg123);
fprintf(stderr, "Bad MP3 encoding for file %s: 0x%x!\n", filename.toStdString().c_str(), _encoding);
return false;
}
// TODO: Figure out if this is necessary.
/* Ensure that this output format will not change (it could, when we allow it). */
//mpg123_format_none(mh);
//mpg123_format(mh, rate, channels, encoding);
return true;
}
inline void MP3Decoder::openFile(const char *filename) {
mpg123_handle *mh = NULL;
int channels = 0, encoding = 0;
long rate = 0;
int err = MPG123_OK;
err = mpg123_init();
if( err != MPG123_OK || (mh = mpg123_new(NULL, &err)) == NULL
|| mpg123_open(mh, filename) != MPG123_OK
|| mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK ) {
printf( "Trouble with mpg123: %s with file: %s\n",
mh==NULL ? mpg123_plain_strerror(err) : mpg123_strerror(mh), filename);
this->cleanup(mh);
return;
}
// Ensure that this output format will not change (it could, when we allow it).
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
size_t buffer_size = mpg123_length(mh) * channels;//mpg123_outblock( mh );
printf("buffer size: %ld\n", buffer_size);
unsigned char* buffer = (unsigned char*)malloc(buffer_size);
size_t done = 0;
int samples = 0;
mp3File = MP3File();
mp3File.handle = mh;
mp3File.channels = channels;
mp3File.rate = rate;
mp3File.buffer = buffer;
mp3File.buffer_size = buffer_size;
int length = mpg123_length( mh );
if( length == MPG123_ERR )
mp3File.length = 0;
else
mp3File.length = length / rate;
}
