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);
}
static cxBool cxMp3StreamOpen(cxAny stream)
{
cxMp3Stream this = stream;
this->fd = open(cxStringBody(this->path), O_RDONLY, 0600);;
if(this->fd <= 0){
CX_ERROR("open strean file %s failed",cxStringBody(this->path));
return false;
}
int error = 0;
this->mh = mpg123_new(NULL, &error);
if(this->mh == NULL){
CX_ERROR("mpg123 new failed");
return false;
}
if(mpg123_open_fd(this->mh, this->fd) != MPG123_OK){
CX_ERROR("open mpg file failed %s",cxStringBody(this->path));
return false;
}
allocator->free(this->buffer);
this->bufsiz = mpg123_outblock(this->mh);
this->buffer = allocator->malloc(this->bufsiz);
mpg123_getformat(this->mh, &this->freq, &this->channels, &this->encoding);
this->super.canRead = true;
this->super.canSeek = true;
this->super.isOpen = true;
return true;
}
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
}
bool MPG123Decoder::seek(size_t ms_offset, bool ms, bool mayrestart)
{
int enc, channels;
long srate;
if (!mayrestart || ms_offset > 0)
{
if (mpg123_getformat(MPG123, &srate, &channels, &enc) == MPG123_OK)
{
size_t smp_offset = ms ? (size_t)((double)ms_offset / 1000. * srate) : ms_offset;
if (mpg123_seek(MPG123, (off_t)smp_offset, SEEK_SET) >= 0)
{
Done = false;
return true;
}
}
return false;
}
else
{
// Restart the song instead of rewinding. A rewind seems to cause distortion when done repeatedly.
// offset is intentionally ignored here.
if (MPG123)
{
mpg123_close(MPG123);
mpg123_delete(MPG123);
MPG123 = 0;
}
Reader->Seek(0, SEEK_SET);
return open(Reader);
}
}
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;
}
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 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;
}
JNIEXPORT void JNICALL Java_com_axelby_mp3decoders_MPG123_feed
(JNIEnv *env, jclass c, jlong handle, jbyteArray in_buffer, jint in_size)
{
MP3File *mp3 = (MP3File*)handle;
mpg123_handle *mh = mp3->handle;
jboolean isCopy;
jbyte* b = (*env)->GetByteArrayElements(env, in_buffer, &isCopy);
int err = mpg123_feed(mh, b, in_size);
if (err != MPG123_OK)
__android_log_print(ANDROID_LOG_INFO, "podax-jni", "mpg123_feed error: %s", mpg123_plain_strerror(err));
(*env)->ReleaseByteArrayElements(env, in_buffer, b, JNI_ABORT);
if (mp3->rate == 0) {
off_t frame_offset;
unsigned char* audio;
size_t bytes_done;
err = mpg123_decode_frame(mh, &frame_offset, &audio, &bytes_done);
if (err == MPG123_NEW_FORMAT) {
int encoding;
err = mpg123_getformat(mh, &mp3->rate, &mp3->channels, &encoding);
if (err != MPG123_NEED_MORE && err != MPG123_OK) {
printerr("mpg123_getformat", err);
return;
}
mp3->samples_per_frame = mpg123_spf(mh);
mp3->secs_per_frame = mpg123_tpf(mh);
}
if (err != MPG123_OK && err != MPG123_NEED_MORE)
__android_log_print(ANDROID_LOG_INFO, "podax-jni", "cannot get rate: %s", mpg123_plain_strerror(err));
}
}
//------------------------------------------------------------
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;
}
bool MPG123Decoder::seek(size_t ms_offset, bool ms, bool mayrestart)
{
int enc, channels;
long srate;
if (!mayrestart || ms_offset > 0)
{
if (mpg123_getformat(MPG123, &srate, &channels, &enc) == MPG123_OK)
{
size_t smp_offset = ms ? (size_t)((double)ms_offset / 1000. * srate) : ms_offset;
if (mpg123_seek(MPG123, (off_t)smp_offset, SEEK_SET) >= 0)
{
Done = false;
return true;
}
}
return false;
}
else
{
// Restart the song instead of rewinding. A rewind seems to cause distortion when done repeatedly.
// offset is intentionally ignored here.
if (MPG123)
{
mpg123_close(MPG123);
mpg123_delete(MPG123);
MPG123 = 0;
}
Reader.Seek(0, FileReader::SeekSet);
// Do not call open with our own reader variable, that would be catastrophic.
auto reader = std::move(Reader);
return open(reader);
}
}
size_t play_stream(void *buffer, size_t size, size_t nmemb, void *userp)
{
int err;
off_t frame_offset;
unsigned char *audio;
size_t done;
ao_sample_format format;
int channels, encoding;
long rate;
mpg123_feed(mh, (const unsigned char*) buffer, size * nmemb);
do {
err = mpg123_decode_frame(mh, &frame_offset, &audio, &done);
switch(err) {
case MPG123_NEW_FORMAT:
mpg123_getformat(mh, &rate, &channels, &encoding);
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(ao_default_driver_id(), &format, NULL);
break;
case MPG123_OK:
ao_play(dev, audio, done);
break;
case MPG123_NEED_MORE:
break;
default:
break;
}
} while(done > 0);
return size * nmemb;
}
SharedPtr<Decoder> Mpg123DecoderFactory::createDecoder(SharedPtr<std::istream> file)
{
if(!mIsInited)
return SharedPtr<Decoder>(nullptr);
mpg123_handle *mpg123 = mpg123_new(0, 0);
if(mpg123)
{
if(mpg123_replace_reader_handle(mpg123, r_read, r_lseek, 0) == MPG123_OK &&
mpg123_open_handle(mpg123, file.get()) == MPG123_OK)
{
int enc, channels;
long srate;
if(mpg123_getformat(mpg123, &srate, &channels, &enc) == MPG123_OK)
{
if((channels == 1 || channels == 2) && srate > 0 &&
mpg123_format_none(mpg123) == MPG123_OK &&
mpg123_format(mpg123, srate, channels, MPG123_ENC_SIGNED_16) == MPG123_OK)
{
// All OK
return SharedPtr<Decoder>(new Mpg123Decoder(file, mpg123, channels, srate));
}
}
mpg123_close(mpg123);
}
mpg123_delete(mpg123);
}
return SharedPtr<Decoder>(nullptr);
}
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;
}
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;
}
bool Mp3Decoder::afterOpen()
{
int encoding;
long numberOfSamplesPerSecond;
int res = mpg123_getformat(_handle, &numberOfSamplesPerSecond, &_numberOfChannels, &encoding);
if(res != MPG123_OK)
{
printf("mpg123_getformat failed\n");
return false;
}
if(encoding != MPG123_ENC_SIGNED_16)
{
printf("encoding != MPG123_ENC_SIGNED_16\n");
return false;
}
/* Ensure that this output format will not change (it could, when we allow it). */
res = mpg123_format_none(_handle);
assert(res == MPG123_OK);
res = mpg123_format(_handle, numberOfSamplesPerSecond, _numberOfChannels, encoding);
assert(res == MPG123_OK);
_numberOfSamplesPerSecond = numberOfSamplesPerSecond;
_numberOfBitsPerSample = 16;
dprintf("\nsample rate: %d\n", _numberOfSamplesPerSecond);
return true;
}
/* Stop playback while seeking if buffer is involved. */
static void seekmode(mpg123_handle *mh, out123_handle *ao)
{
if(param.usebuffer && !stopped)
{
int channels = 0;
int encoding = 0;
int pcmframe;
off_t back_samples = 0;
stopped = TRUE;
out123_pause(ao);
mpg123_getformat(mh, NULL, &channels, &encoding);
pcmframe = out123_encsize(encoding)*channels;
if(pcmframe > 0)
back_samples = out123_buffered(ao)/pcmframe;
fprintf(stderr, "\nseeking back %"OFF_P" samples from %"OFF_P"\n"
, (off_p)back_samples, (off_p)mpg123_tell(mh));
mpg123_seek(mh, -back_samples, SEEK_CUR);
out123_drop(ao);
fprintf(stderr, "\ndropped, now at %"OFF_P"\n"
, (off_p)mpg123_tell(mh));
fprintf(stderr, "%s", MPG123_STOPPED_STRING);
if(param.verbose)
print_stat(mh, 0, ao);
}
}
int mp3file_determineStats(MP3File *mp3) {
if (mp3 == NULL)
return;
int encoding;
mpg123_handle* mh = mp3->handle;
int err = mpg123_getformat(mh, &mp3->rate, &mp3->channels, &encoding);
if (err == MPG123_NEED_MORE)
return err;
if (err != MPG123_OK) {
printerr("mpg123_getformat", err);
return err;
}
mpg123_format_none(mh);
mpg123_format(mh, mp3->rate, mp3->channels, encoding);
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 err;
}
/* return 1 on success, 0 on failure */
int play_frame(void)
{
unsigned char *audio;
int mc;
size_t bytes;
debug("play_frame");
/* The first call will not decode anything but return MPG123_NEW_FORMAT! */
mc = mpg123_decode_frame(mh, &framenum, &audio, &bytes);
/* Play what is there to play (starting with second decode_frame call!) */
if(bytes)
{
if(param.frame_number > -1) --frames_left;
if(fresh && framenum >= param.start_frame)
{
fresh = FALSE;
}
/* Normal flushing of data, includes buffer decoding. */
if(flush_output(ao, audio, bytes) < (int)bytes && !intflag)
{
error("Deep trouble! Cannot flush to my output anymore!");
safe_exit(133);
}
if(param.checkrange)
{
long clip = mpg123_clip(mh);
if(clip > 0) fprintf(stderr,"%ld samples clipped\n", clip);
}
}
/* Special actions and errors. */
if(mc != MPG123_OK)
{
if(mc == MPG123_ERR || mc == MPG123_DONE)
{
if(mc == MPG123_ERR) error1("...in decoding next frame: %s", mpg123_strerror(mh));
return 0;
}
if(mc == MPG123_NO_SPACE)
{
error("I have not enough output space? I didn't plan for this.");
return 0;
}
if(mc == MPG123_NEW_FORMAT)
{
long rate;
int channels, format;
mpg123_getformat(mh, &rate, &channels, &format);
if(param.verbose > 2) fprintf(stderr, "\nNote: New output format %liHz %ich, format %i\n", rate, channels, format);
if(!param.quiet)
{
fprintf(stderr, "\n");
if(param.verbose) print_header(mh);
else print_header_compact(mh);
}
reset_audio(rate, channels, format);
}
}
return 1;
}
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;
}
Mpg123Decoder::Mpg123Decoder(Data *data, const std::string &ext, int bufferSize)
: Decoder(data, ext, bufferSize)
, decoder_file(data)
, handle(0)
, channels(MPG123_STEREO)
, duration(-2.0)
{
int ret = 0;
if (!inited)
{
ret = mpg123_init();
if (ret != MPG123_OK)
throw love::Exception("Could not initialize mpg123.");
inited = (ret == MPG123_OK);
}
// Intialize the handle.
handle = mpg123_new(nullptr, nullptr);
if (handle == nullptr)
throw love::Exception("Could not create decoder.");
// Suppressing all mpg123 messages.
mpg123_param(handle, MPG123_ADD_FLAGS, MPG123_QUIET, 0);
try
{
ret = mpg123_replace_reader_handle(handle, &read_callback, &seek_callback, &cleanup_callback);
if (ret != MPG123_OK)
throw love::Exception("Could not set decoder callbacks.");
ret = mpg123_open_handle(handle, &decoder_file);
if (ret != MPG123_OK)
throw love::Exception("Could not open decoder.");
// mpg123_getformat should be able to tell us the properties of the stream's first frame.
long rate = 0;
ret = mpg123_getformat(handle, &rate, &channels, nullptr);
if (ret == MPG123_ERR)
throw love::Exception("Could not get stream information.");
// I forgot what this was about.
if (channels == 0)
channels = 2;
// Force signed 16-bit output.
mpg123_param(handle, MPG123_FLAGS, (channels == 2 ? MPG123_FORCE_STEREO : MPG123_MONO_MIX), 0);
mpg123_format_none(handle);
mpg123_format(handle, rate, channels, MPG123_ENC_SIGNED_16);
sampleRate = rate;
}
catch (love::Exception &)
{
mpg123_delete(handle);
throw;
}
}
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;
}
/**
Decodes given buffer of data to PCM
*/
jint Java_com_denisigo_netradioplayer_Decoder_decodeNative(JNIEnv* env, jobject thiz, jint handle,
jbyteArray in_buffer, jint size, jbyteArray out_buffer, jint max_size){
jint ret;
mpg123_handle* hnd = (mpg123_handle*) handle;
jbyte* in_buf = (*env)->GetByteArrayElements(env, in_buffer, NULL);
jbyte* out_buf = (*env)->GetByteArrayElements(env, out_buffer, NULL);
size_t bytes_decoded;
// Decode data
ret = mpg123_decode(hnd, in_buf, size, out_buf, max_size, &bytes_decoded);
LOG("Decoded %d bytes, ret: %d, max_size: %d", bytes_decoded, ret, max_size);
// If status if OK, decoder decoded something
if (ret == MPG123_OK){
ret = bytes_decoded;
}
// This means decoder faced new stream. For us this means that there was sufficient data decoded
// to determine stream's params and we can notify Java Decoder about it
else if (ret == MPG123_NEW_FORMAT){
long rate;
int channels, encoding;
// Get actual format params
mpg123_getformat(hnd, &rate, &channels, &encoding);
//LOG("mpg123_getformat: rate: %d channels: %d encoding: %d\n", rate, channels, encoding);
// We support only 16 and 8 bits per sample
if (encoding == MPG123_ENC_SIGNED_16)
encoding = 16;
else if (encoding == MPG123_ENC_SIGNED_8)
encoding = 8;
else
encoding = -1;
(*env)->CallVoidMethod(env, thiz, method_onNewFormatCallback, (jint)rate, (jint)channels,
(jint)encoding);
ret = 0;
}
// This means mpg123 decoder needs more data to provide decoded data
else if (ret == MPG123_NEED_MORE){
ret = 0;
}
// Other cases usually means some errors
else {
// Ensure we will not return positive number which is normally indicating num of decoded bytes
if (ret > 0)
ret *= -1;
}
(*env)->ReleaseByteArrayElements(env, in_buffer, in_buf, 0);
(*env)->ReleaseByteArrayElements(env, out_buffer, out_buf, 0);
return ret;
}
AudioSourceMpg123::AudioSourceMpg123(const char* filename) : AudioSource(filename)
{
rate_ = 0;
channelCount_ = 0;
sampleCount_ = 0;
int err = MPG123_OK;
mpg123_handle* mh = mpg123_new(NULL, &err);
if (mh == NULL || err != MPG123_OK)
return;
/* if (mpg123_open(mh, filename) != MPG123_OK)
{
mpg123_delete(mh);
return;
} */
G_FILE* file = g_fopen(filename, "rb");
if (file == NULL)
{
mpg123_delete(mh);
return;
}
mpg123_replace_reader_handle(mh, mpg123read, mpg123lseek, mpg123cleanup);
if (mpg123_open_handle(mh, file) != MPG123_OK)
{
mpg123_delete(mh);
return;
}
int channels = 0, encoding = 0;
long rate = 0;
if (mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK)
{
mpg123_delete(mh);
return;
}
// Signed 16 is the default output format anyways (encoding == MPG123_ENC_SIGNED_16);
// it would actually by only different if we forced it.
// Ensure that this output format will not change (it could, when we allow it).
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
rate_ = rate;
channelCount_ = channels;
mpg123_scan(mh);
sampleCount_ = mpg123_length(mh);
mpg123_close(mh);
mpg123_delete(mh);
}
void Mpg123Decoder::GetFormat(int& frequency, AudioDecoder::Format& format, int& channels) const {
long freq;
int ch;
int fmt;
mpg123_getformat(handle.get(), &freq, &ch, &fmt);
frequency = (int)freq;
channels = ch;
format = mpg123_format_to_format(fmt);
}
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;
}
/* libmpg123 has a new format ready; query and store, return return value
of mpg123_getformat() */
static int set_format(sh_audio_t *sh, struct ad_mpg123_context *con)
{
int ret;
long rate;
int channels;
int encoding;
ret = mpg123_getformat(con->handle, &rate, &channels, &encoding);
if(ret == MPG123_OK) {
sh->channels = channels;
sh->samplerate = rate;
/* Without external force, mpg123 will always choose signed encoding,
* and non-16-bit only on builds that don't support it.
* Be reminded that it doesn't matter to the MPEG file what encoding
* is produced from it. */
switch (encoding) {
case MPG123_ENC_SIGNED_8:
sh->sample_format = AF_FORMAT_S8;
sh->samplesize = 1;
break;
case MPG123_ENC_SIGNED_16:
sh->sample_format = AF_FORMAT_S16_NE;
sh->samplesize = 2;
break;
/* To stay compatible with the oldest libmpg123 headers, do not rely
* on float and 32 bit encoding symbols being defined.
* Those formats came later */
case 0x1180: /* MPG123_ENC_SIGNED_32 */
sh->sample_format = AF_FORMAT_S32_NE;
sh->samplesize = 4;
break;
case 0x200: /* MPG123_ENC_FLOAT_32 */
sh->sample_format = AF_FORMAT_FLOAT_NE;
sh->samplesize = 4;
break;
default:
/* This means we got a funny custom build of libmpg123 that only supports an unknown format. */
mp_msg(MSGT_DECAUDIO, MSGL_ERR,
"Bad encoding from mpg123: %i.\n", encoding);
return MPG123_ERR;
}
#ifdef AD_MPG123_FRAMEWISE
/* Going to decode directly to MPlayer's memory. It is important
* to have MPG123_AUTO_RESAMPLE disabled for the buffer size
* being an all-time limit. */
sh->audio_out_minsize = 1152 * 2 * sh->samplesize;
#endif
con->new_format = 0;
}
return ret;
}
