static void
mp3_data_init(struct mp3_data *data, struct decoder *decoder,
struct input_stream *input_stream)
{
data->mute_frame = MUTEFRAME_NONE;
data->highest_frame = 0;
data->max_frames = 0;
data->frame_offsets = NULL;
data->times = NULL;
data->current_frame = 0;
data->drop_start_frames = 0;
data->drop_end_frames = 0;
data->drop_start_samples = 0;
data->drop_end_samples = 0;
data->found_xing = false;
data->found_first_frame = false;
data->decoded_first_frame = false;
data->decoder = decoder;
data->input_stream = input_stream;
data->layer = 0;
mad_stream_init(&data->stream);
mad_stream_options(&data->stream, MAD_OPTION_IGNORECRC);
mad_frame_init(&data->frame);
mad_synth_init(&data->synth);
mad_timer_reset(&data->timer);
}
int TrackDuration::duration(const QFileInfo &fileinfo)
{
QString fn = fileinfo.absoluteFilePath();
if (fn.isEmpty())
return 0;
QFile file(fn);
if (!file.open(QFile::ReadOnly))
return 0;
mad_stream infostream;
mad_header infoheader;
mad_timer_t infotimer;
mad_stream_init(&infostream);
mad_header_init(&infoheader);
mad_timer_reset(&infotimer);
qint64 r;
qint64 l = 0;
unsigned char* buf = new unsigned char[INPUT_BUFFER_SIZE];
while (!file.atEnd()) {
if (l < INPUT_BUFFER_SIZE) {
r = file.read(reinterpret_cast<char*>(buf) + l, INPUT_BUFFER_SIZE - l);
l += r;
}
mad_stream_buffer(&infostream, buf, l);
for (;;) {
if (mad_header_decode(&infoheader, &infostream)) {
if (!MAD_RECOVERABLE(infostream.error))
break;
if (infostream.error == MAD_ERROR_LOSTSYNC) {
TagLib::ID3v2::Header header;
uint size = (uint)(infostream.bufend - infostream.this_frame);
if (size >= header.size()) {
header.setData(TagLib::ByteVector(reinterpret_cast<const char*>(infostream.this_frame), size));
uint tagsize = header.tagSize();
if (tagsize > 0) {
mad_stream_skip(&infostream, qMin(tagsize, size));
continue;
}
}
}
qDebug() << "header decode error while getting file info" << infostream.error;
continue;
}
mad_timer_add(&infotimer, infoheader.duration);
}
if (infostream.error != MAD_ERROR_BUFLEN && infostream.error != MAD_ERROR_BUFPTR)
break;
memmove(buf, infostream.next_frame, &(buf[l]) - infostream.next_frame);
l -= (infostream.next_frame - buf);
}
mad_stream_finish(&infostream);
mad_header_finish(&infoheader);
delete[] buf;
return timerToMs(&infotimer);
}
size_t MadDecoder::start(FILE* handle)
{
handle_ = handle;
decodeBuffer_.resize(bufferSize_, false);
ASSERT(decodeBuffer_.size() == bufferSize_);
unsigned char* buffer = decodeBuffer_.getHead();
int64 durationMsec = getDurationMs(buffer, bufferSize_);
mad_stream_init(&madStream_);
mad_frame_init(&madFrame_);
mad_synth_init(&madSynth_);
mad_timer_reset(&madTimer_);
// Decode at least one valid frame to find out the input format.
// The decoded frame will be saved off so that it can be processed later.
//
size_t bytesRead = fread(buffer, (size_t)1, bufferSize_, handle_);
if (bytesRead != bufferSize_ && ferror(handle_))
THROW(std::exception, "%s", strerror(errno));
mad_stream_buffer(&madStream_, buffer, bytesRead);
// Find a valid frame before starting up.
// This make sure that we have a valid MP3
// and also skips past ID3v2 tags at the beginning of the audio file.
//
madStream_.error = MAD_ERROR_NONE;
while (mad_frame_decode(&madFrame_, &madStream_))
{
// check whether input buffer needs a refill
if (madStream_.error == MAD_ERROR_BUFLEN) {
if (readMpgFile() == false) break; // eof
else continue;
}
consumeId3Tag(); // consume any ID3 tags
// FIXME: We should probably detect when we've read
// a bunch of non-ID3 data and still haven't found a
// frame. In that case we can abort early without
// scanning the whole file.
//
madStream_.error = MAD_ERROR_NONE;
}
if (madStream_.error) {
THROW(std::exception, "No valid MP3 frame found");
}
mad_timer_add(&madTimer_, madFrame_.header.duration);
mad_synth_frame(&madSynth_, &madFrame_);
//unsigned int precision_ = 16;
currentFrame_ = 0;
numMpegFrames_ = 0;
initialized_ = true;
return (size_t)(durationMsec * .001 * getSampleRate() + .5); // number of sample frames
}
static void
init_mad_decoder (mp3d_prc_t * ap_prc)
{
assert (ap_prc);
mad_stream_init (&ap_prc->stream_);
mad_frame_init (&ap_prc->frame_);
mad_synth_init (&ap_prc->synth_);
mad_timer_reset (&ap_prc->timer_);
}
void mpgDecoder::reset( )
{
#ifdef HAVE_MAD
madFile->reset();
mad_timer_reset( currentPositionTimer );
mad_stream_init( madStream );
mad_frame_init( madFrame );
frameCounter = 0;
#endif
}
void XMp3Decomp::initMad()
{
finishMad();
m_isInitMad = true;
m_firstBuf = true;
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
mad_timer_reset(&Timer);
}
static void
MP3_Restart()
{
memset(OutputBuffer, 0, OUTPUT_BUFFER_SIZE);
samplesInOutput = 0;
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
mad_timer_reset(&Timer);
MP3_getInfo();
}
void MP3_Init()
{
# ifndef LINUX_MODE
samplesInOutput = 0;
isPlaying = 0;
/* First the structures used by libmad must be initialized. */
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
mad_timer_reset(&Timer);
# endif
}
static void mp3_init (mp3_s *mp3)
{
mp3->out_ptr = mp3->out_buf;
mp3->out_buf_end = mp3->out_buf + BUF_SIZE;
mp3->frame_count = 0;
mp3->status = 0;
mp3->start = 0;
mad_stream_init (&mp3->stream);
mad_frame_init (&mp3->frame);
mad_synth_init (&mp3->synth);
mad_timer_reset (&mp3->timer);
}
Mp3Decoder::Mp3Decoder(const u8 * snd, int len)
: SoundDecoder(snd, len)
{
SoundType = SOUND_MP3;
ReadBuffer = NULL;
mad_timer_reset(&Timer);
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
if(!file_fd)
return;
OpenFile();
}
int Mp3Decoder::Rewind()
{
mad_synth_finish(&Synth);
mad_frame_finish(&Frame);
mad_stream_finish(&Stream);
mad_timer_reset(&Timer);
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
SynthPos = 0;
GuardPtr = NULL;
if(!file_fd)
return -1;
return SoundDecoder::Rewind();
}
int Init(int channel) {
pspAudioInit(); // init the audio psp
mad_stream_init(&stream); // create the mad variables, streams etc.
mad_frame_init(&frame);
mad_synth_init(&synth);
mad_timer_reset(&timer);
pspAudioSetChannelCallback(channel, fillOutputBuffer, 0); // set the callback to the function.
mutex = sceKernelCreateSema("myMutexName", 0, 1, 1, 0); // create the mutex for threading secure.
pausesong = 1; // set the variable to pause so no sound is played.
started = 0; // the mp3 has not yet started.
file = 0; // set the file to zero
fileSize = 1;
filePos = 0;
printf("MusicEngine is initialized.\n");
return 1;
};
RageSoundReader_MP3::RageSoundReader_MP3()
{
mad = new madlib_t;
m_bAccurateSync = false;
mad_stream_init( &mad->Stream );
mad_frame_init( &mad->Frame );
mad_synth_init( &mad->Synth );
mad_frame_mute( &mad->Frame );
mad_timer_reset( &mad->Timer );
mad->length = -1;
mad->inbuf_filepos = 0;
mad->header_bytes = 0;
mad->has_xing = false;
mad->timer_accurate = 1;
mad->bitrate = -1;
mad->first_frame = true;
}
mad_data *
mad_openFileRW(SDL_RWops *rw, SDL_AudioSpec *mixer) {
mad_data *mp3_mad;
mp3_mad = (mad_data *)malloc(sizeof(mad_data));
mp3_mad->rw = rw;
mad_stream_init(&mp3_mad->stream);
mad_frame_init(&mp3_mad->frame);
mad_synth_init(&mp3_mad->synth);
mp3_mad->frames_read = 0;
mad_timer_reset(&mp3_mad->next_frame_start);
mp3_mad->volume = 128;
mp3_mad->status = 0;
mp3_mad->output_begin = 0;
mp3_mad->output_end = 0;
mp3_mad->mixer = *mixer;
return mp3_mad;
}
mpgDecoder::mpgDecoder(FILE* File, QObject *parent )
: fileDecoder(File, parent )
{
// use QFile as input Buffer, which is needed by libMad, cause it cannot detect EOF....
madFile = new QFile();
madFile->open(fHandle, QIODevice::ReadOnly);
// current position timer needs to be initialized first as its set in scanFile()
endPositionTimer = new mad_timer_t;
scanFile();
#ifdef HAVE_MAD
// Allocate Memory for the MAD decoder Library
madStream = new mad_stream;
madFrame = new mad_frame;
madSynth = new mad_synth;
currentPositionTimer = new mad_timer_t;
mad_inputBuffer = new unsigned char[163840+MAD_BUFFER_GUARD];
memset(mad_inputBuffer,0 , 163840+MAD_BUFFER_GUARD);
// Initiate libMad structs
mad_stream_init( madStream );
mad_frame_init( madFrame );
mad_synth_init( madSynth );
mad_timer_reset( currentPositionTimer );
#endif
//allocate decoder output ringbuffers
mad_outputBuffer = new soundRingBuffer[2];
mad_outputBuffer[0].setName("mad_output1");
mad_outputBuffer[1].setName("mad_output2");
returnBuffer = new float*[2];
returnBuffer[0] = new float[8192];
returnBuffer[1] = new float[8192];
memset(returnBuffer[0], 0, 8192*sizeof(float));
memset(returnBuffer[1], 0, 8192*sizeof(float));
frameCounter=0;
}
mad_data *
mad_openFileRW(SDL_RWops *src, SDL_AudioSpec *mixer, int freesrc)
{
mad_data *mp3_mad;
mp3_mad = (mad_data *)SDL_malloc(sizeof(mad_data));
if (mp3_mad) {
mp3_mad->src = src;
mp3_mad->freesrc = freesrc;
mad_stream_init(&mp3_mad->stream);
mad_frame_init(&mp3_mad->frame);
mad_synth_init(&mp3_mad->synth);
mp3_mad->frames_read = 0;
mad_timer_reset(&mp3_mad->next_frame_start);
mp3_mad->volume = MIX_MAX_VOLUME;
mp3_mad->status = 0;
mp3_mad->output_begin = 0;
mp3_mad->output_end = 0;
mp3_mad->mixer = *mixer;
}
return mp3_mad;
}
int madx_init ( unsigned char *out_buffer, madx_house *mxhouse )
{
// Initialize libmad structures
mad_stream_init(&mxhouse->stream);
mad_frame_init(&mxhouse->frame);
mad_synth_init(&mxhouse->synth);
mad_timer_reset(&mxhouse->timer);
// Assign pointer to output buffer. "output_ptr"
// is used to determine when to flush the output
// buffer in madx_read().
mxhouse->output_ptr = out_buffer;
return(1);
}
bool RageSoundReader_MP3::MADLIB_rewind()
{
m_pFile->Seek(0);
mad_frame_mute(&mad->Frame);
mad_synth_mute(&mad->Synth);
mad_timer_reset(&mad->Timer);
mad->outpos = mad->outleft = 0;
mad_stream_finish(&mad->Stream);
mad_stream_init(&mad->Stream);
mad_stream_buffer(&mad->Stream, NULL, 0);
mad->inbuf_filepos = 0;
/* Be careful. We need to leave header_bytes alone, so if we try to SetPosition_estimate
* immediately after this, we still know the header size. However, we need to set first_frame
* to true, since the first frame is handled specially in do_mad_frame_decode; if we don't
* set it, then we'll be desynced by a frame after an accurate seek. */
// mad->header_bytes = 0;
mad->first_frame = true;
mad->Stream.this_frame = NULL;
return true;
}
bool Mp3AudioFileReader::run(AudioProcessor& processor)
{
if (file_ == nullptr) {
return false;
}
enum {
STATUS_OK,
STATUS_INIT_ERROR,
STATUS_READ_ERROR,
STATUS_PROCESS_ERROR
} status = STATUS_OK;
unsigned char input_buffer[INPUT_BUFFER_SIZE + MAD_BUFFER_GUARD];
unsigned char* guard_ptr = nullptr;
unsigned long frame_count = 0;
short output_buffer[OUTPUT_BUFFER_SIZE];
short* output_ptr = output_buffer;
const short* const output_buffer_end = output_buffer + OUTPUT_BUFFER_SIZE;
int channels = 0;
// Decoding options can here be set in the options field of the stream
// structure.
// {1} When decoding from a file we need to know when the end of the file is
// reached at the same time as the last bytes are read (see also the comment
// marked {3} below). Neither the standard C fread() function nor the POSIX
// read() system call provides this feature. We thus need to perform our
// reads through an interface having this feature, this is implemented here
// by the bstdfile.c module.
BStdFile bstd_file(file_);
// Initialize the structures used by libmad.
MadStream stream;
MadFrame frame;
MadSynth synth;
mad_timer_t timer;
mad_timer_reset(&timer);
// This is the decoding loop.
for (;;) {
// The input bucket must be filled if it becomes empty or if it's the
// first execution of the loop.
if (stream.buffer == nullptr || stream.error == MAD_ERROR_BUFLEN) {
size_t read_size;
size_t remaining;
unsigned char* read_start;
// {2} libmad may not consume all bytes of the input buffer. If the
// last frame in the buffer is not wholly contained by it, then that
// frame's start is pointed by the next_frame member of the stream
// structure. This common situation occurs when mad_frame_decode()
// fails, sets the stream error code to MAD_ERROR_BUFLEN, and sets
// the next_frame pointer to a non-NULL value. (See also the comment
// marked {4} below.)
//
// When this occurs, the remaining unused bytes must be put back at
// the beginning of the buffer and taken in account before refilling
// the buffer. This means that the input buffer must be large enough
// to hold a whole frame at the highest observable bit-rate
// (currently 448 kb/s). XXX=XXX Is 2016 bytes the size of the
// largest frame? (448000*(1152/32000))/8
if (stream.next_frame != nullptr) {
remaining = stream.bufend - stream.next_frame;
memmove(input_buffer, stream.next_frame, remaining);
read_start = input_buffer + remaining;
read_size = INPUT_BUFFER_SIZE - remaining;
}
else {
read_size = INPUT_BUFFER_SIZE;
read_start = input_buffer;
remaining = 0;
}
// Fill-in the buffer. If an error occurs print a message and leave
// the decoding loop. If the end of stream is reached we also leave
// the loop but the return status is left untouched.
read_size = bstd_file.read(read_start, 1, read_size);
if (read_size <= 0) {
if (ferror(file_)) {
error_stream << "\nRead error on bit-stream: "
<< strerror(errno) << '\n';
status = STATUS_READ_ERROR;
}
break;
}
// {3} When decoding the last frame of a file, it must be followed
// by MAD_BUFFER_GUARD zero bytes if one wants to decode that last
// frame. When the end of file is detected we append that quantity
// of bytes at the end of the available data. Note that the buffer
// can't overflow as the guard size was allocated but not used the
// the buffer management code. (See also the comment marked {1}.)
//
// In a message to the mad-dev mailing list on May 29th, 2001, Rob
// Leslie explains the guard zone as follows:
//
// "The reason for MAD_BUFFER_GUARD has to do with the way
// decoding is performed. In Layer III, Huffman decoding may
// inadvertently read a few bytes beyond the end of the buffer in
// the case of certain invalid input. This is not detected until
// after the fact. To prevent this from causing problems, and
// also to ensure the next frame's main_data_begin pointer is
// always accessible, MAD requires MAD_BUFFER_GUARD (currently 8)
// bytes to be present in the buffer past the end of the current
// frame in order to decode the frame."
if (bstd_file.eof()) {
guard_ptr = read_start + read_size;
memset(guard_ptr, 0, MAD_BUFFER_GUARD);
read_size += MAD_BUFFER_GUARD;
}
// Pipe the new buffer content to libmad's stream decoder facility.
mad_stream_buffer(&stream, input_buffer, read_size + remaining);
stream.error = MAD_ERROR_NONE;
}
// Decode the next MPEG frame. The streams is read from the buffer, its
// constituents are break down and stored the the frame structure, ready
// for examination/alteration or PCM synthesis. Decoding options are
// carried in the frame structure from the stream structure.
//
// Error handling: mad_frame_decode() returns a non zero value when an
// error occurs. The error condition can be checked in the error member
// of the stream structure. A mad error is recoverable or fatal, the
// error status is checked with the MAD_RECOVERABLE macro.
//
// {4} When a fatal error is encountered all decoding activities shall
// be stopped, except when a MAD_ERROR_BUFLEN is signaled. This
// condition means that the mad_frame_decode() function needs more input
// to complete its work. One shall refill the buffer and repeat the
// mad_frame_decode() call. Some bytes may be left unused at the end of
// the buffer if those bytes forms an incomplete frame. Before
// refilling, the remaining bytes must be moved to the beginning of the
// buffer and used for input for the next mad_frame_decode() invocation.
// (See the comments marked {2} earlier for more details.)
//
// Recoverable errors are caused by malformed bit-streams, in this case
// one can call again mad_frame_decode() in order to skip the faulty
// part and re-sync to the next frame.
if (mad_frame_decode(&frame, &stream)) {
if (MAD_RECOVERABLE(stream.error)) {
// Do not print a message if the error is a loss of
// synchronization and this loss is due to the end of stream
// guard bytes. (See the comment marked {3} above for more
// information about guard bytes.)
if (stream.error != MAD_ERROR_LOSTSYNC ||
stream.this_frame != guard_ptr) {
// For any MP3 file we typically see two errors in the
// first frame processed:
// - lost synchronization
// - reserved header layer value
// This seems to be OK, so don't print these
if (frame_count != 0) {
error_stream << "\nRecoverable frame level error: "
<< mad_stream_errorstr(&stream) << '\n';
}
}
continue;
}
else {
if (stream.error == MAD_ERROR_BUFLEN) {
continue;
}
else {
error_stream << "\nUnrecoverable frame level error: "
<< mad_stream_errorstr(&stream) << '\n';
status = STATUS_READ_ERROR;
break;
}
}
}
// Display the characteristics of the stream's first frame. The first
// frame is representative of the entire stream.
if (frame_count == 0) {
const int sample_rate = frame.header.samplerate;
channels = MAD_NCHANNELS(&frame.header);
dumpInfo(output_stream, frame.header);
if (!processor.init(sample_rate, channels, OUTPUT_BUFFER_SIZE)) {
status = STATUS_PROCESS_ERROR;
break;
}
showProgress(0, file_size_);
}
// Accounting. The computed frame duration is in the frame header
// structure. It is expressed as a fixed point number whole data type is
// mad_timer_t. It is different from the samples fixed point format and
// unlike it, it can't directly be added or subtracted. The timer module
// provides several functions to operate on such numbers. Be careful
// there, as some functions of libmad's timer module receive some of
// their mad_timer_t arguments by value!
frame_count++;
mad_timer_add(&timer, frame.header.duration);
// Once decoded the frame is synthesized to PCM samples. No errors are
// reported by mad_synth_frame();
mad_synth_frame(&synth, &frame);
// Synthesized samples must be converted from libmad's fixed point
// number to the consumer format. Here we use signed 16 bit integers on
// two channels. Integer samples are temporarily stored in a buffer that
// is flushed when full.
for (int i = 0; i < synth.pcm.length; i++) {
// Left channel
short sample = MadFixedToSshort(synth.pcm.samples[0][i]);
*output_ptr++ = sample;
// Right channel. If the decoded stream is monophonic then the right
// output channel is the same as the left one.
if (MAD_NCHANNELS(&frame.header) == 2) {
sample = MadFixedToSshort(synth.pcm.samples[1][i]);
*output_ptr++ = sample;
}
// Flush the output buffer if it is full
if (output_ptr == output_buffer_end) {
long pos = ftell(file_);
showProgress(pos, file_size_);
bool success = processor.process(
output_buffer,
OUTPUT_BUFFER_SIZE / channels
);
if (!success) {
status = STATUS_PROCESS_ERROR;
break;
}
output_ptr = output_buffer;
}
}
}
// If the output buffer is not empty and no error occurred during the last
// write, then flush it.
if (output_ptr != output_buffer && status != STATUS_PROCESS_ERROR) {
int buffer_size = static_cast<int>(output_ptr - output_buffer);
bool success = processor.process(output_buffer, buffer_size / channels);
if (!success) {
status = STATUS_PROCESS_ERROR;
}
}
// Accounting report if no error occurred.
if (status == STATUS_OK) {
// Report 100% done.
showProgress(file_size_, file_size_);
char buffer[80];
// The duration timer is converted to a human readable string with the
// versatile, but still constrained mad_timer_string() function, in a
// fashion not unlike strftime(). The main difference is that the timer
// is broken into several values according some of its arguments. The
// units and fracunits arguments specify the intended conversion to be
// executed.
//
// The conversion unit (MAD_UNIT_MINUTES in our example) also specify
// the order and kind of conversion specifications that can be used in
// the format string.
//
// It is best to examine libmad's timer.c source-code for details of the
// available units, fraction of units, their meanings, the format
// arguments, etc.
mad_timer_string(timer, buffer, "%lu:%02lu.%03u",
MAD_UNITS_MINUTES, MAD_UNITS_MILLISECONDS, 0);
output_stream << "\nFrames decoded: " << frame_count
<< " (" << buffer << ")\n";
}
processor.done();
close();
return status == STATUS_OK;
}
/* scale */
return output >> scalebits;
}
#define INPUT_BUFFER_SIZE (5*8192)
#define OUTPUT_BUFFER_SIZE 8192 /* Must be an integer multiple of 4. */
void real_mpeg_play(char* fname)
{
unsigned char InputBuffer[INPUT_BUFFER_SIZE],
OutputBuffer[OUTPUT_BUFFER_SIZE],
*OutputPtr=OutputBuffer;
const unsigned char *OutputBufferEnd=OutputBuffer+OUTPUT_BUFFER_SIZE;
int Status=0, i, fd;
unsigned long FrameCount=0;
sound_t sound;
struct mp3entry mp3;
static struct dither d0, d1;
int key=0;
mp3info(&mp3, fname, false); /* FIXME: honor the v1first setting */
init_sound(&sound);
/* Configure sound device for this file - always select Stereo because
some sound cards don't support mono */
config_sound(&sound,mp3.frequency,2);
if ((fd=open(fname,O_RDONLY)) < 0) {
fprintf(stderr,"could not open %s\n",fname);
return;
}
/* First the structures used by libmad must be initialized. */
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
mad_timer_reset(&Timer);
do {
if (Stream.buffer==NULL || Stream.error==MAD_ERROR_BUFLEN) {
size_t ReadSize,Remaining;
unsigned char *ReadStart;
if(Stream.next_frame!=NULL) {
Remaining=Stream.bufend-Stream.next_frame;
memmove(InputBuffer,Stream.next_frame,Remaining);
ReadStart=InputBuffer+Remaining;
ReadSize=INPUT_BUFFER_SIZE-Remaining;
} else {
ReadSize=INPUT_BUFFER_SIZE,
ReadStart=InputBuffer,
Remaining=0;
}
if ((int)(ReadSize=read(fd,ReadStart,ReadSize)) < 0) {
fprintf(stderr,"end of input stream\n");
break;
}
mad_stream_buffer(&Stream,InputBuffer,ReadSize+Remaining);
Stream.error=0;
}
if(mad_frame_decode(&Frame,&Stream)) {
if(MAD_RECOVERABLE(Stream.error)) {
fprintf(stderr,"recoverable frame level error\n");
fflush(stderr);
continue;
} else {
if(Stream.error==MAD_ERROR_BUFLEN) {
continue;
} else {
fprintf(stderr,"unrecoverable frame level error\n");
Status=1;
break;
}
}
}
FrameCount++;
mad_timer_add(&Timer,Frame.header.duration);
mad_synth_frame(&Synth,&Frame);
for(i=0;i<Synth.pcm.length;i++) {
unsigned short Sample;
/* Left channel */
Sample=scale(Synth.pcm.samples[0][i],&d0);
*(OutputPtr++)=Sample&0xff;
*(OutputPtr++)=Sample>>8;
/* Right channel. If the decoded stream is monophonic then
* the right output channel is the same as the left one.
*/
if(MAD_NCHANNELS(&Frame.header)==2) {
Sample=scale(Synth.pcm.samples[1][i],&d1);
}
*(OutputPtr++)=Sample&0xff;
*(OutputPtr++)=Sample>>8;
/* Flush the buffer if it is full. */
if (OutputPtr==OutputBufferEnd) {
if (output_sound(&sound, OutputBuffer,
OUTPUT_BUFFER_SIZE)!=OUTPUT_BUFFER_SIZE) {
fprintf(stderr,"PCM write error.\n");
Status=2;
break;
}
OutputPtr=OutputBuffer;
}
}
if ((key=button_get(0))==BUTTON_STOP)
{
break;
}
}while(1);
/* Mad is no longer used, the structures that were initialized must
* now be cleared.
*/
mad_synth_finish(&Synth);
mad_frame_finish(&Frame);
mad_stream_finish(&Stream);
/* If the output buffer is not empty and no error occured during
* the last write, then flush it. */
if(OutputPtr!=OutputBuffer && Status!=2)
{
size_t BufferSize=OutputPtr-OutputBuffer;
if (output_sound(&sound, OutputPtr, BufferSize)!=(int)BufferSize)
{
fprintf(stderr,"PCM write error\n");
Status=2;
}
}
/* Accounting report if no error occured. */
if(!Status)
{
char Buffer[80];
mad_timer_string(Timer,Buffer,"%lu:%02lu.%03u",
MAD_UNITS_MINUTES,MAD_UNITS_MILLISECONDS,0);
fprintf(stderr,"%lu frames decoded (%s).\n",FrameCount,Buffer);
}
close_sound(&sound);
/* That's the end of the world (in the H. G. Wells way). */
return;
}
/****************************************************************************
* Main decoding loop. This is where mad is used. *
****************************************************************************/
#define INPUT_BUFFER_SIZE (5*8192)
#define OUTPUT_BUFFER_SIZE 8192 /* Must be an integer multiple of 4. */
static int MpegAudioDecoder(FILE *InputFp, FILE *OutputFp)
{
struct mad_stream Stream;
struct mad_frame Frame;
struct mad_synth Synth;
mad_timer_t Timer;
unsigned char InputBuffer[INPUT_BUFFER_SIZE+MAD_BUFFER_GUARD],
OutputBuffer[OUTPUT_BUFFER_SIZE],
*OutputPtr=OutputBuffer,
*GuardPtr=NULL;
const unsigned char *OutputBufferEnd=OutputBuffer+OUTPUT_BUFFER_SIZE;
int Status=0,
i;
unsigned long FrameCount=0;
bstdfile_t *BstdFile;
/* First the structures used by libmad must be initialized. */
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
mad_timer_reset(&Timer);
/* Decoding options can here be set in the options field of the
* Stream structure.
*/
/* {1} When decoding from a file we need to know when the end of
* the file is reached at the same time as the last bytes are read
* (see also the comment marked {3} bellow). Neither the standard
* C fread() function nor the POSIX read() system call provides
* this feature. We thus need to perform our reads through an
* interface having this feature, this is implemented here by the
* bstdfile.c module.
*/
BstdFile=NewBstdFile(InputFp);
if(BstdFile==NULL)
{
fprintf(stderr,"%s: can't create a new bstdfile_t (%s).\n",
ProgName,strerror(errno));
return(1);
}
/* This is the decoding loop. */
do
{
/* The input bucket must be filled if it becomes empty or if
* it's the first execution of the loop.
*/
if(Stream.buffer==NULL || Stream.error==MAD_ERROR_BUFLEN)
{
size_t ReadSize,
Remaining;
unsigned char *ReadStart;
/* {2} libmad may not consume all bytes of the input
* buffer. If the last frame in the buffer is not wholly
* contained by it, then that frame's start is pointed by
* the next_frame member of the Stream structure. This
* common situation occurs when mad_frame_decode() fails,
* sets the stream error code to MAD_ERROR_BUFLEN, and
* sets the next_frame pointer to a non NULL value. (See
* also the comment marked {4} bellow.)
*
* When this occurs, the remaining unused bytes must be
* put back at the beginning of the buffer and taken in
* account before refilling the buffer. This means that
* the input buffer must be large enough to hold a whole
* frame at the highest observable bit-rate (currently 448
* kb/s). XXX=XXX Is 2016 bytes the size of the largest
* frame? (448000*(1152/32000))/8
*/
if(Stream.next_frame!=NULL)
{
Remaining=Stream.bufend-Stream.next_frame;
memmove(InputBuffer,Stream.next_frame,Remaining);
ReadStart=InputBuffer+Remaining;
ReadSize=INPUT_BUFFER_SIZE-Remaining;
}
else
ReadSize=INPUT_BUFFER_SIZE,
ReadStart=InputBuffer,
Remaining=0;
/* Fill-in the buffer. If an error occurs print a message
* and leave the decoding loop. If the end of stream is
* reached we also leave the loop but the return status is
* left untouched.
*/
ReadSize=BstdRead(ReadStart,1,ReadSize,BstdFile);
if(ReadSize<=0)
{
if(ferror(InputFp))
{
fprintf(stderr,"%s: read error on bit-stream (%s)\n",
ProgName,strerror(errno));
Status=1;
}
if(feof(InputFp))
fprintf(stderr,"%s: end of input stream\n",ProgName);
break;
}
/* {3} When decoding the last frame of a file, it must be
* followed by MAD_BUFFER_GUARD zero bytes if one wants to
* decode that last frame. When the end of file is
* detected we append that quantity of bytes at the end of
* the available data. Note that the buffer can't overflow
* as the guard size was allocated but not used the the
* buffer management code. (See also the comment marked
* {1}.)
*
* In a message to the mad-dev mailing list on May 29th,
* 2001, Rob Leslie explains the guard zone as follows:
*
* "The reason for MAD_BUFFER_GUARD has to do with the
* way decoding is performed. In Layer III, Huffman
* decoding may inadvertently read a few bytes beyond
* the end of the buffer in the case of certain invalid
* input. This is not detected until after the fact. To
* prevent this from causing problems, and also to
* ensure the next frame's main_data_begin pointer is
* always accessible, MAD requires MAD_BUFFER_GUARD
* (currently 8) bytes to be present in the buffer past
* the end of the current frame in order to decode the
* frame."
*/
if(BstdFileEofP(BstdFile))
{
GuardPtr=ReadStart+ReadSize;
memset(GuardPtr,0,MAD_BUFFER_GUARD);
ReadSize+=MAD_BUFFER_GUARD;
}
/* Pipe the new buffer content to libmad's stream decoder
* facility.
*/
mad_stream_buffer(&Stream,InputBuffer,ReadSize+Remaining);
Stream.error=0;
}
/* Decode the next MPEG frame. The streams is read from the
* buffer, its constituents are break down and stored the the
* Frame structure, ready for examination/alteration or PCM
* synthesis. Decoding options are carried in the Frame
* structure from the Stream structure.
*
* Error handling: mad_frame_decode() returns a non zero value
* when an error occurs. The error condition can be checked in
* the error member of the Stream structure. A mad error is
* recoverable or fatal, the error status is checked with the
* MAD_RECOVERABLE macro.
*
* {4} When a fatal error is encountered all decoding
* activities shall be stopped, except when a MAD_ERROR_BUFLEN
* is signaled. This condition means that the
* mad_frame_decode() function needs more input to complete
* its work. One shall refill the buffer and repeat the
* mad_frame_decode() call. Some bytes may be left unused at
* the end of the buffer if those bytes forms an incomplete
* frame. Before refilling, the remaining bytes must be moved
* to the beginning of the buffer and used for input for the
* next mad_frame_decode() invocation. (See the comments
* marked {2} earlier for more details.)
*
* Recoverable errors are caused by malformed bit-streams, in
* this case one can call again mad_frame_decode() in order to
* skip the faulty part and re-sync to the next frame.
*/
if(mad_frame_decode(&Frame,&Stream))
{
if(MAD_RECOVERABLE(Stream.error))
{
/* Do not print a message if the error is a loss of
* synchronization and this loss is due to the end of
* stream guard bytes. (See the comments marked {3}
* supra for more informations about guard bytes.)
*/
if(Stream.error!=MAD_ERROR_LOSTSYNC ||
Stream.this_frame!=GuardPtr)
{
fprintf(stderr,"%s: recoverable frame level error (%s)\n",
ProgName,MadErrorString(&Stream));
fflush(stderr);
}
continue;
}
else
if(Stream.error==MAD_ERROR_BUFLEN)
continue;
else
{
fprintf(stderr,"%s: unrecoverable frame level error (%s).\n",
ProgName,MadErrorString(&Stream));
Status=1;
break;
}
}
/* The characteristics of the stream's first frame is printed
* on stderr. The first frame is representative of the entire
* stream.
*/
if(FrameCount==0)
if(PrintFrameInfo(stderr,&Frame.header))
{
Status=1;
break;
}
/* Accounting. The computed frame duration is in the frame
* header structure. It is expressed as a fixed point number
* whole data type is mad_timer_t. It is different from the
* samples fixed point format and unlike it, it can't directly
* be added or subtracted. The timer module provides several
* functions to operate on such numbers. Be careful there, as
* some functions of libmad's timer module receive some of
* their mad_timer_t arguments by value!
*/
FrameCount++;
mad_timer_add(&Timer,Frame.header.duration);
/* Between the frame decoding and samples synthesis we can
* perform some operations on the audio data. We do this only
* if some processing was required. Detailed explanations are
* given in the ApplyFilter() function.
*/
if(DoFilter)
ApplyFilter(&Frame);
/* Once decoded the frame is synthesized to PCM samples. No errors
* are reported by mad_synth_frame();
*/
mad_synth_frame(&Synth,&Frame);
/* Synthesized samples must be converted from libmad's fixed
* point number to the consumer format. Here we use unsigned
* 16 bit big endian integers on two channels. Integer samples
* are temporarily stored in a buffer that is flushed when
* full.
*/
for(i=0;i<Synth.pcm.length;i++)
{
signed short Sample;
/* Left channel */
Sample=MadFixedToSshort(Synth.pcm.samples[0][i]);
*(OutputPtr++)=Sample>>8;
*(OutputPtr++)=Sample&0xff;
/* Right channel. If the decoded stream is monophonic then
* the right output channel is the same as the left one.
*/
if(MAD_NCHANNELS(&Frame.header)==2)
Sample=MadFixedToSshort(Synth.pcm.samples[1][i]);
*(OutputPtr++)=Sample>>8;
*(OutputPtr++)=Sample&0xff;
/* Flush the output buffer if it is full. */
if(OutputPtr==OutputBufferEnd)
{
if(fwrite(OutputBuffer,1,OUTPUT_BUFFER_SIZE,OutputFp)!=OUTPUT_BUFFER_SIZE)
{
fprintf(stderr,"%s: PCM write error (%s).\n",
ProgName,strerror(errno));
Status=2;
break;
}
OutputPtr=OutputBuffer;
}
}
}while(1);
/* The input file was completely read; the memory allocated by our
* reading module must be reclaimed.
*/
BstdFileDestroy(BstdFile);
/* Mad is no longer used, the structures that were initialized must
* now be cleared.
*/
mad_synth_finish(&Synth);
mad_frame_finish(&Frame);
mad_stream_finish(&Stream);
/* If the output buffer is not empty and no error occurred during
* the last write, then flush it.
*/
if(OutputPtr!=OutputBuffer && Status!=2)
{
size_t BufferSize=OutputPtr-OutputBuffer;
if(fwrite(OutputBuffer,1,BufferSize,OutputFp)!=BufferSize)
{
fprintf(stderr,"%s: PCM write error (%s).\n",
ProgName,strerror(errno));
Status=2;
}
}
/* Accounting report if no error occurred. */
if(!Status)
{
char Buffer[80];
/* The duration timer is converted to a human readable string
* with the versatile, but still constrained mad_timer_string()
* function, in a fashion not unlike strftime(). The main
* difference is that the timer is broken into several
* values according some of it's arguments. The units and
* fracunits arguments specify the intended conversion to be
* executed.
*
* The conversion unit (MAD_UNIT_MINUTES in our example) also
* specify the order and kind of conversion specifications
* that can be used in the format string.
*
* It is best to examine libmad's timer.c source-code for details
* of the available units, fraction of units, their meanings,
* the format arguments, etc.
*/
mad_timer_string(Timer,Buffer,"%lu:%02lu.%03u",
MAD_UNITS_MINUTES,MAD_UNITS_MILLISECONDS,0);
fprintf(stderr,"%s: %lu frames decoded (%s).\n",
ProgName,FrameCount,Buffer);
}
/* That's the end of the world (in the H. G. Wells way). */
return(Status);
}
static int startread(sox_format_t * ft)
{
priv_t *p = (priv_t *) ft->priv;
size_t ReadSize;
sox_bool ignore_length = ft->signal.length == SOX_IGNORE_LENGTH;
int open_library_result;
LSX_DLLIBRARY_OPEN(
p,
mad_dl,
MAD_FUNC_ENTRIES,
"MAD decoder library",
mad_library_names,
open_library_result);
if (open_library_result)
return SOX_EOF;
p->mp3_buffer_size = sox_globals.bufsiz;
p->mp3_buffer = lsx_malloc(p->mp3_buffer_size);
ft->signal.length = SOX_UNSPEC;
if (ft->seekable) {
#ifdef USING_ID3TAG
read_comments(ft);
rewind((FILE*)ft->fp);
if (!ft->signal.length)
#endif
if (!ignore_length)
ft->signal.length = mp3_duration_ms(ft);
}
p->mad_stream_init(&p->Stream);
p->mad_frame_init(&p->Frame);
p->mad_synth_init(&p->Synth);
mad_timer_reset(&p->Timer);
ft->encoding.encoding = SOX_ENCODING_MP3;
/* Decode at least one valid frame to find out the input
* format. The decoded frame will be saved off so that it
* can be processed later.
*/
ReadSize = lsx_readbuf(ft, p->mp3_buffer, p->mp3_buffer_size);
if (ReadSize != p->mp3_buffer_size && ferror((FILE*)ft->fp))
return SOX_EOF;
p->mad_stream_buffer(&p->Stream, p->mp3_buffer, ReadSize);
/* Find a valid frame before starting up. This makes sure
* that we have a valid MP3 and also skips past ID3v2 tags
* at the beginning of the audio file.
*/
p->Stream.error = 0;
while (p->mad_frame_decode(&p->Frame,&p->Stream))
{
/* check whether input buffer needs a refill */
if (p->Stream.error == MAD_ERROR_BUFLEN)
{
if (sox_mp3_input(ft) == SOX_EOF)
return SOX_EOF;
continue;
}
/* Consume any ID3 tags */
sox_mp3_inputtag(ft);
/* FIXME: We should probably detect when we've read
* a bunch of non-ID3 data and still haven't found a
* frame. In that case we can abort early without
* scanning the whole file.
*/
p->Stream.error = 0;
}
if (p->Stream.error)
{
lsx_fail_errno(ft,SOX_EOF,"No valid MP3 frame found");
return SOX_EOF;
}
switch(p->Frame.header.mode)
{
case MAD_MODE_SINGLE_CHANNEL:
case MAD_MODE_DUAL_CHANNEL:
case MAD_MODE_JOINT_STEREO:
case MAD_MODE_STEREO:
ft->signal.channels = MAD_NCHANNELS(&p->Frame.header);
break;
default:
lsx_fail_errno(ft, SOX_EFMT, "Cannot determine number of channels");
return SOX_EOF;
}
p->FrameCount=1;
p->mad_timer_add(&p->Timer,p->Frame.header.duration);
p->mad_synth_frame(&p->Synth,&p->Frame);
ft->signal.precision = MP3_MAD_PRECISION;
ft->signal.rate=p->Synth.pcm.samplerate;
if (ignore_length)
ft->signal.length = SOX_UNSPEC;
else {
ft->signal.length = (uint64_t)(ft->signal.length * .001 * ft->signal.rate + .5);
ft->signal.length *= ft->signal.channels; /* Keep separate from line above! */
}
p->cursamp = 0;
return SOX_SUCCESS;
}
static int sox_mp3seek(sox_format_t * ft, uint64_t offset)
{
priv_t * p = (priv_t *) ft->priv;
size_t initial_bitrate = p->Frame.header.bitrate;
size_t tagsize = 0, consumed = 0;
sox_bool vbr = sox_false; /* Variable Bit Rate */
sox_bool depadded = sox_false;
uint64_t to_skip_samples = 0;
/* Reset all */
rewind((FILE*)ft->fp);
mad_timer_reset(&p->Timer);
p->FrameCount = 0;
/* They where opened in startread */
mad_synth_finish(&p->Synth);
p->mad_frame_finish(&p->Frame);
p->mad_stream_finish(&p->Stream);
p->mad_stream_init(&p->Stream);
p->mad_frame_init(&p->Frame);
p->mad_synth_init(&p->Synth);
offset /= ft->signal.channels;
to_skip_samples = offset;
while(sox_true) { /* Read data from the MP3 file */
int read, padding = 0;
size_t leftover = p->Stream.bufend - p->Stream.next_frame;
memcpy(p->mp3_buffer, p->Stream.this_frame, leftover);
read = fread(p->mp3_buffer + leftover, (size_t) 1, p->mp3_buffer_size - leftover, (FILE*)ft->fp);
if (read <= 0) {
lsx_debug("seek failure. unexpected EOF (frames=%" PRIuPTR " leftover=%" PRIuPTR ")", p->FrameCount, leftover);
break;
}
for (; !depadded && padding < read && !p->mp3_buffer[padding]; ++padding);
depadded = sox_true;
p->mad_stream_buffer(&p->Stream, p->mp3_buffer + padding, leftover + read - padding);
while (sox_true) { /* Decode frame headers */
static unsigned short samples;
p->Stream.error = MAD_ERROR_NONE;
/* Not an audio frame */
if (p->mad_header_decode(&p->Frame.header, &p->Stream) == -1) {
if (p->Stream.error == MAD_ERROR_BUFLEN)
break; /* Normal behaviour; get some more data from the file */
if (!MAD_RECOVERABLE(p->Stream.error)) {
lsx_warn("unrecoverable MAD error");
break;
}
if (p->Stream.error == MAD_ERROR_LOSTSYNC) {
unsigned available = (p->Stream.bufend - p->Stream.this_frame);
tagsize = tagtype(p->Stream.this_frame, (size_t) available);
if (tagsize) { /* It's some ID3 tags, so just skip */
if (tagsize >= available) {
fseeko((FILE*)ft->fp, (off_t)(tagsize - available), SEEK_CUR);
depadded = sox_false;
}
p->mad_stream_skip(&p->Stream, min(tagsize, available));
}
else lsx_warn("MAD lost sync");
}
else lsx_warn("recoverable MAD error");
continue;
}
consumed += p->Stream.next_frame - p->Stream.this_frame;
vbr |= (p->Frame.header.bitrate != initial_bitrate);
samples = 32 * MAD_NSBSAMPLES(&p->Frame.header);
p->FrameCount++;
p->mad_timer_add(&p->Timer, p->Frame.header.duration);
if(to_skip_samples <= samples)
{
p->mad_frame_decode(&p->Frame,&p->Stream);
p->mad_synth_frame(&p->Synth, &p->Frame);
p->cursamp = to_skip_samples;
return SOX_SUCCESS;
}
else to_skip_samples -= samples;
/* If not VBR, we can extrapolate frame size */
if (p->FrameCount == 64 && !vbr) {
p->FrameCount = offset / samples;
to_skip_samples = offset % samples;
if (SOX_SUCCESS != lsx_seeki(ft, (off_t)(p->FrameCount * consumed / 64 + tagsize), SEEK_SET))
return SOX_EOF;
/* Reset Stream for refilling buffer */
p->mad_stream_finish(&p->Stream);
p->mad_stream_init(&p->Stream);
break;
}
}
};
return SOX_EOF;
}
// the following function has been copied from XMMS' mad input plugin
// Copyright (C) 2001-2002 Sam Clegg
void mpgDecoder::scanFile( )
{
#ifdef HAVE_MAD
mad_stream scanStream;
mad_header scanHeader;
int remainder = 0;
int data_used = 0;
int pos = 0;
unsigned char buffer[4096];
// reset file, so we can read from the beginning
madFile->reset();
mad_timer_reset( endPositionTimer );
mad_stream_init (&scanStream);
mad_header_init (&scanHeader);
while (1)
{
remainder = scanStream.bufend - scanStream.next_frame;
memcpy (buffer, scanStream.this_frame, remainder);
// get some more Byte from File...
int readCnt = 0;
unsigned char* readStart;
readStart = buffer+remainder;
while( !madFile->atEnd() && readCnt < (4096 - remainder) )
{
readStart[readCnt] = madFile->read(1).at(0);
readCnt++;
}
if (madFile->atEnd())
break;
mad_stream_buffer (&scanStream, buffer, readCnt + remainder);
while (1)
{
if (mad_header_decode (&scanHeader, &scanStream) == -1)
{
if (scanStream.error == MAD_ERROR_BUFLEN)
{
break;
}
if (!MAD_RECOVERABLE (scanStream.error))
{
break;
}
continue;
}
pos++;
data_used += scanStream.next_frame - scanStream.this_frame;
mad_timer_add( endPositionTimer, scanHeader.duration );
if (pos == 1)
{
sampleRate = scanHeader.samplerate;
channels = MAD_NCHANNELS(&scanHeader);
}
}
if (scanStream.error != MAD_ERROR_BUFLEN)
break;
}
mad_header_finish (&scanHeader);
mad_stream_finish (&scanStream);
// reset the file again, so we can read from the beginning when playing
madFile->reset();
#endif
}
static void
MP3_getInfo()
{
int FrameCount = 0;
struct mad_stream stream;
struct mad_header header;
mad_stream_init (&stream);
mad_header_init (&header);
MP3_info.fileSize = size;
mad_timer_reset(&MP3_info.length);
mad_stream_buffer (&stream, mp3_data, size);
while (1){
if (mad_header_decode (&header, &stream) == -1){
if (MAD_RECOVERABLE(stream.error)){
continue;
}else{
break;
}
}
//Informazioni solo dal primo frame:
if (FrameCount == 0){
switch (header.layer) {
case MAD_LAYER_I:
strcpy(MP3_info.layer,"I");
break;
case MAD_LAYER_II:
strcpy(MP3_info.layer,"II");
break;
case MAD_LAYER_III:
strcpy(MP3_info.layer,"III");
break;
default:
strcpy(MP3_info.layer,"unknown");
break;
}
MP3_info.kbit = header.bitrate / 1000;
MP3_info.hz = header.samplerate;
switch (header.mode) {
case MAD_MODE_SINGLE_CHANNEL:
strcpy(MP3_info.mode, "single channel");
break;
case MAD_MODE_DUAL_CHANNEL:
strcpy(MP3_info.mode, "dual channel");
break;
case MAD_MODE_JOINT_STEREO:
strcpy(MP3_info.mode, "joint (MS/intensity) stereo");
break;
case MAD_MODE_STEREO:
strcpy(MP3_info.mode, "normal LR stereo");
break;
default:
strcpy(MP3_info.mode, "unknown");
break;
}
switch (header.emphasis) {
case MAD_EMPHASIS_NONE:
strcpy(MP3_info.emphasis,"no");
break;
case MAD_EMPHASIS_50_15_US:
strcpy(MP3_info.emphasis,"50/15 us");
break;
case MAD_EMPHASIS_CCITT_J_17:
strcpy(MP3_info.emphasis,"CCITT J.17");
break;
case MAD_EMPHASIS_RESERVED:
strcpy(MP3_info.emphasis,"reserved(!)");
break;
default:
strcpy(MP3_info.emphasis,"unknown");
break;
}
}
FrameCount++;
mad_timer_add (&MP3_info.length, header.duration);
}
mad_header_finish (&header);
mad_stream_finish (&stream);
MP3_info.frames = FrameCount;
mad_timer_string(MP3_info.length, MP3_info.strLength, "%02lu:%02u:%02u", MAD_UNITS_HOURS, MAD_UNITS_MILLISECONDS, 0);
}
static void MP3Update(void)
{
int flip;
UINT8 *GuardPtr;
INT16 *OutputPtr, *OutputEnd;
struct mad_stream Stream;
struct mad_frame Frame;
struct mad_synth Synth;
mad_timer_t Timer;
mad_stream_init(&Stream);
mad_frame_init(&Frame);
mad_synth_init(&Synth);
mad_timer_reset(&Timer);
OutputPtr = (INT16 *)mp3_out[0];
OutputEnd = (INT16 *)(mp3_out[0] + MP3_BUFFER_SIZE);
GuardPtr = NULL;
mp3_filepos = 0;
mp3_frame = 0;
flip = 0;
cdda_command_ack = 1;
while (mp3_active && mp3_status != MP3_STOP)
{
if (Stream.buffer == NULL || Stream.error == MAD_ERROR_BUFLEN)
{
UINT32 ReadSize, Remaining;
UINT8 *ReadStart;
if (Stream.next_frame != NULL)
{
Remaining = Stream.bufend - Stream.next_frame;
ReadStart = mp3_in + Remaining;
ReadSize = (2 * MP3_BUFFER_SIZE) - Remaining;
memmove(mp3_in, Stream.next_frame, Remaining);
}
else
{
ReadSize = 2 * MP3_BUFFER_SIZE;
ReadStart = mp3_in;
Remaining = 0;
}
if (MP3SleepCheck()) break;
ReadSize = sceIoRead(mp3_fd, ReadStart, ReadSize);
mp3_filepos += ReadSize;
if (mp3_filepos == mp3_fsize)
{
if (cdda_autoloop)
{
mp3_filepos = 0;
sceIoLseek(mp3_fd, 0, PSP_SEEK_SET);
}
else
{
cdda_playing = CDDA_STOP;
mp3_status = MP3_STOP;
}
}
if (mp3_filepos == mp3_fsize)
{
GuardPtr = ReadStart + ReadSize;
memset(GuardPtr, 0, MAD_BUFFER_GUARD);
ReadSize += MAD_BUFFER_GUARD;
}
mad_stream_buffer(&Stream, mp3_in, ReadSize + Remaining);
Stream.error = 0;
}
if (mad_frame_decode(&Frame, &Stream))
{
if (MAD_RECOVERABLE(Stream.error))
{
// if (Stream.error != MAD_ERROR_LOSTSYNC || Stream.this_frame != GuardPtr)
continue;
}
else if (Stream.error == MAD_ERROR_BUFLEN)
{
continue;
}
else
{
ui_popup(TEXT(MP3_DECODE_ERROR));
mp3_status = MP3_STOP;
break;
}
}
mp3_frame++;
mad_timer_add(&Timer, Frame.header.duration);
mad_synth_frame(&Synth, &Frame);
if (mp3_status == MP3_PLAY)
{
int i;
for (i = 0; i < Synth.pcm.length; i++)
{
if (MAD_NCHANNELS(&Frame.header) == 2)
{
*OutputPtr++ = MP3Limit(Synth.pcm.samples[0][i]);
*OutputPtr++ = MP3Limit(Synth.pcm.samples[1][i]);
}
else
{
INT16 data = MP3Limit(Synth.pcm.samples[0][i]);
*OutputPtr++ = data;
*OutputPtr++ = data;
}
if (OutputPtr == OutputEnd)
{
sceAudioOutputPannedBlocking(mp3_handle, mp3_volume, mp3_volume, mp3_out[flip]);
flip ^= 1;
OutputPtr = (INT16 *)mp3_out[flip];
OutputEnd = (INT16 *)(mp3_out[flip] + MP3_BUFFER_SIZE);
}
}
}
else if (mp3_status == MP3_SEEK)
{
if (mp3_frame >= mp3_start_frame)
{
mp3_start_frame = 0;
mp3_status = MP3_SLEEP;
sceKernelSleepThread();
}
}
}
mad_synth_finish(&Synth);
mad_frame_finish(&Frame);
mad_stream_finish(&Stream);
if (mp3_fd >= 0)
{
sceIoClose(mp3_fd);
mp3_fd = -1;
}
}
int main(int argc, char *argv[])
{
int fd = 0;
char *currentfile, old_dir[PATH_MAX];
playlist *pl = NULL;
struct id3_file *id3struct = NULL;
struct id3_tag *id3tag = NULL;
buffer playbuf;
struct mad_decoder decoder;
old_dir[0] = '\0';
playbuf.pl = pl = new_playlist();
if (!pl)
{
fprintf(stderr, "malloc failed at startup!\n");
exit(1);
}
options.volume = MAD_F_ONE;
status = MPG321_PLAYING;
/* Get the command line options */
parse_options(argc, argv, pl);
/* If there were no files and no playlist specified just print the usage */
if (!playlist_file && optind == argc)
{
usage(argv[0]);
exit(0);
}
if (playlist_file)
load_playlist(pl, playlist_file);
add_cmdline_files(pl, argv);
if (shuffle_play)
shuffle_files(pl);
ao_initialize();
check_default_play_device();
if (!(options.opt & MPG321_REMOTE_PLAY))
{
handle_signals(-1); /* initialize signal handler */
remote_input_buf[0] = '\0';
}
if (!(options.opt & MPG321_QUIET_PLAY))
mpg123_boilerplate();
if (options.opt & MPG321_REMOTE_PLAY)
{
printf ("@R MPG123\n");
}
/* Play the mpeg files or zip it! */
while((currentfile = get_next_file(pl, &playbuf)))
{
if (quit_now)
break;
signal(SIGINT, SIG_DFL);
playbuf.buf = NULL;
playbuf.fd = -1;
playbuf.length = 0;
playbuf.done = 0;
playbuf.num_frames = 0;
playbuf.max_frames = -1;
strncpy(playbuf.filename,currentfile, PATH_MAX);
playbuf.filename[PATH_MAX-1] = '\0';
if (status == MPG321_PLAYING)
file_change = 1;
mad_timer_reset(&playbuf.duration);
mad_timer_reset(¤t_time);
if (!(options.opt & MPG321_QUIET_PLAY) && file_change)
{
id3struct = id3_file_open (currentfile, ID3_FILE_MODE_READONLY);
if (id3struct)
{
id3tag = id3_file_tag (id3struct);
if (id3tag)
{
show_id3 (id3tag);
}
id3_file_close (id3struct);
}
}
if (options.opt & MPG321_REMOTE_PLAY && file_change)
{
id3struct = id3_file_open (currentfile, ID3_FILE_MODE_READONLY);
if (id3struct)
{
id3tag = id3_file_tag (id3struct);
if (id3tag)
{
if (!show_id3(id3tag))
{
/* This shouldn't be necessary, but it appears that
libid3tag doesn't necessarily know if there are no
id3 tags on a given mp3 */
char * basec = strdup(currentfile);
char * basen = basename(basec);
char * dot = strrchr(basen, '.');
if (dot)
*dot = '\0';
printf("@I %s\n", basen);
free(basec);
}
}
else
{
fprintf(stderr, "Allocation error");
exit(1);
}
id3_file_close (id3struct);
}
else
{
char * basec = strdup(currentfile);
char * basen = basename(basec);
char * dot = strrchr(basen, '.');
if (dot)
*dot = '\0';
printf("@I %s\n", basen);
free(basec);
}
}
/* Create the MPEG stream */
/* Check if source is on the network */
if((fd = raw_open(currentfile)) != 0 || (fd = http_open(currentfile)) != 0
|| (fd = ftp_open(currentfile)) != 0)
{
playbuf.fd = fd;
playbuf.buf = malloc(BUF_SIZE);
playbuf.length = BUF_SIZE;
mad_decoder_init(&decoder, &playbuf, read_from_fd, read_header, /*filter*/0,
output, /*error*/0, /* message */ 0);
}
/* Check if we are to use stdin for input */
else if(strcmp(currentfile, "-") == 0)
{
playbuf.fd = fileno(stdin);
playbuf.buf = malloc(BUF_SIZE);
playbuf.length = BUF_SIZE;
mad_decoder_init(&decoder, &playbuf, read_from_fd, read_header, /*filter*/0,
output, /*error*/0, /* message */ 0);
}
/* currentfile is a local file (presumably.) mmap() it */
else
{
struct stat stat;
if((fd = open(currentfile, O_RDONLY)) == -1)
{
mpg321_error(currentfile);
/* mpg123 stops immediately if it can't open a file */
break;
}
if(fstat(fd, &stat) == -1)
{
close(fd);
mpg321_error(currentfile);
continue;
}
if (!S_ISREG(stat.st_mode))
{
close(fd);
continue;
}
calc_length(currentfile, &playbuf);
if ((options.maxframes != -1) && (options.maxframes <= playbuf.num_frames))
{
playbuf.max_frames = options.maxframes;
}
playbuf.frames = malloc((playbuf.num_frames + 1) * sizeof(void*));
playbuf.times = malloc((playbuf.num_frames + 1) * sizeof(mad_timer_t));
if((playbuf.buf = mmap(0, playbuf.length, PROT_READ, MAP_SHARED, fd, 0))
== MAP_FAILED)
{
close(fd);
mpg321_error(currentfile);
continue;
}
close(fd);
playbuf.frames[0] = playbuf.buf;
mad_decoder_init(&decoder, &playbuf, read_from_mmap, read_header, /*filter*/0,
output, /*error*/0, /* message */ 0);
}
if(!(options.opt & MPG321_QUIET_PLAY))/*zip it!!!*/
{
/* Because dirname might modify the argument */
char * dirc = strdup(currentfile);
char * basec = strdup(currentfile);
char * basen = basename(basec);
char * dirn = dirname(dirc);
/* make sure that the file has a pathname; otherwise don't print out
a Directory: listing */
if(strchr(currentfile, '/') && strncmp(old_dir, dirn, PATH_MAX) != 0)
{
/* Print information about the file */
fprintf(stderr, "\n");
fprintf(stderr,"Directory: %s/\n", dirn);
strncpy(old_dir, dirn, PATH_MAX);
old_dir[PATH_MAX-1] = '\0';
}
/* print a newline between different songs only, not after
Directory: listing */
else
{
fprintf(stderr, "\n");
}
fprintf(stderr,"Playing MPEG stream from %s ...\n", basen);
free(dirc);
free(basec);
}
signal(SIGINT, handle_signals);
/* Every time the user gets us to rewind, we exit decoding,
reinitialize it, and re-start it */
while (1)
{
mad_decoder_run(&decoder, MAD_DECODER_MODE_SYNC);
/* if we're rewinding on an mmap()ed stream */
if(status == MPG321_REWINDING && playbuf.fd == -1)
{
mad_decoder_init(&decoder, &playbuf, read_from_mmap, read_header, /*filter*/0,
output, /*error*/0, /* message */ 0);
}
else
break;
}
if (!(options.opt & MPG321_QUIET_PLAY))
{
char time_formatted[11];
mad_timer_string(current_time, time_formatted, "%.1u:%.2u", MAD_UNITS_MINUTES,
MAD_UNITS_SECONDS, 0);
fprintf(stderr, "\n[%s] Decoding of %s finished.\n",time_formatted, basename(currentfile));
}
if (options.opt & MPG321_REMOTE_PLAY && status == MPG321_STOPPED)
{
clear_remote_file(pl);
}
mad_decoder_finish(&decoder);
if (quit_now)
break;
if (playbuf.frames)
free(playbuf.frames);
if (playbuf.times)
free(playbuf.times);
if (playbuf.fd == -1)
{
munmap(playbuf.buf, playbuf.length);
}
else
{
free(playbuf.buf);
if (playbuf.fd != fileno(stdin))
close(playbuf.fd);
}
}
if(playdevice)
ao_close(playdevice);
ao_shutdown();
#if defined(RAW_SUPPORT) || defined(HTTP_SUPPORT) || defined(FTP_SUPPORT)
if(fd) close(fd);
#endif
return(0);
}
int main(int argc, char *argv[])
{
int fd = 0;
char *currentfile, old_dir[PATH_MAX];
playlist *pl = NULL;
struct id3_file *id3struct = NULL;
struct id3_tag *id3tag = NULL;
int retval;
buffer playbuf;
struct mad_decoder decoder;
pthread_t keyb_thread;
key_t sem_key;
key_t mem_key;
key_t frames_key;
union semun sem_ops;
int shm_id;
int frames_id;
mad_decoder_position = 0;
output_buffer_position = 0;
old_dir[0] = '\0';
playbuf.pl = pl = new_playlist();
if (!pl)
{
fprintf(stderr, "malloc failed at startup!\n");
exit(1);
}
loop_remaining = 1;
options.volume = MAD_F_ONE;
status = MPG321_PLAYING;
/* Get the command line options */
parse_options(argc, argv, pl);
if(options.opt & MPG321_PRINT_FFT)
if(!(options.opt & MPG321_REMOTE_PLAY))
{
/* printf("FFT analysis can only be used in Remote mode play.\n\n"); */
usage(argv[0]);
exit(0);
}
/* If there were no files and no playlist specified just print the usage */
if (!playlist_file && optind == argc)
{
usage(argv[0]);
exit(0);
}
if (playlist_file)
load_playlist(pl, playlist_file);
if(options.opt & MPG321_RECURSIVE_DIR)
add_cmdline_files_recursive_dir(pl, argv);
else
add_cmdline_files(pl, argv);
if (shuffle_play)
shuffle_files(pl);
if(options.opt & MPG321_ENABLE_BUFFER)
{
/* Initialize semaphore and shared memeory */
if(access(argv[0],X_OK) == 0)
sem_key = ftok(argv[0],0);
else
sem_key = ftok(MPG321_PATH,0);
if(sem_key == -1)
{
perror("Cannot obtain resources for semaphores");
exit(EXIT_FAILURE);
}
semarray = semget(sem_key,3,IPC_CREAT | IPC_EXCL | S_IRWXU);
if(semarray == -1)
{
perror("Cannot initialize semaphores");
exit(EXIT_FAILURE);
}
sem_ops.val = buffer_size-1;
if(semctl(semarray,0,SETVAL,sem_ops) == -1)
{
perror("Error while initializing mad_decoder semaphore");
if(semctl(semarray,0,IPC_RMID) == -1)
perror("Error while destroying semaphores");
goto out;
//exit(EXIT_FAILURE);
}
sem_ops.val = 0;
if(semctl(semarray,1,SETVAL,sem_ops) == -1)
{
perror("Error while initializing mad_decoder semaphore");
if(semctl(semarray,0,IPC_RMID) == -1)
perror("Error while destroying semaphores");
goto out;
//exit(EXIT_FAILURE);
}
sem_ops.val = 0;
if(semctl(semarray,2,SETVAL,sem_ops) == -1)
{
perror("Error while initializing mad_decoder semaphore");
if(semctl(semarray,0,IPC_RMID) == -1)
perror("Error while destroying semaphores");
goto out;
//exit(EXIT_FAILURE);
}
/* Shared Memory */
mem_key = ftok(argv[0],1);
shm_id = shmget(mem_key,buffer_size * sizeof(output_frame), IPC_CREAT | S_IREAD | S_IWRITE);
if(shm_id == -1)
{
perror("Cannot initialize shared buffer");
goto out;
//exit(EXIT_FAILURE);
}
Output_Queue = shmat(shm_id,NULL,0);
if(*(int *)Output_Queue == -1)
{
perror("Error while attaching shared buffer to mad_decoder");
if(shmctl(shm_id,IPC_RMID,NULL))
perror("Cannot destroy shared buffer");
goto out;
//exit(EXIT_FAILURE);
}
static int n;
for(n=0;n<buffer_size;n++)
{
memset((Output_Queue+n)->data,'\0',4608);
memset((Output_Queue+n)->time,'\0',80);
(Output_Queue+n)->length = 0;
(Output_Queue+n)->seconds = 0;
(Output_Queue+n)->num_frames = 0;
}
frames_key = ftok(argv[0],2);
frames_id = shmget(frames_key,buffer_size * sizeof(decoded_frames), IPC_CREAT | S_IREAD | S_IWRITE);
if(frames_id == -1)
{
perror("Cannot initialize shared frames counter");
goto out;
//exit(EXIT_FAILURE);
}
Decoded_Frames = shmat(frames_id,NULL,0);
if(*(int *)Decoded_Frames == -1)
{
perror("Error while attaching shared frames counter to mad_decoder");
if(shmctl(frames_id,IPC_RMID,NULL))
perror("Cannot destroy shared frames counter");
goto out;
//exit(EXIT_FAILURE);
}
Decoded_Frames->is_http = 0;
Decoded_Frames->is_file = 0;
}
else {
ao_initialize();
check_default_play_device();
}
if (!(options.opt & MPG321_REMOTE_PLAY))
{
handle_signals(-1); /* initialize signal handler */
remote_input_buf[0] = '\0';
}
if (!(options.opt & MPG321_QUIET_PLAY))
mpg123_boilerplate();
if (options.opt & MPG321_REMOTE_PLAY)
{
printf ("@R MPG123\n");
if(options.opt & MPG321_ENABLE_BUFFER)
{
#ifdef HAVE_ALSA
init_alsa_volume_control("default"); /* For the moment use "default", it works on most of the systems. Tested in Debian,Fedora,Ubuntu,RedHat,CentOS,Gentoo */
if(options.volume != MAD_F_ONE)
mpg321_alsa_set_volume((long)options.volume*volume_max/100);
#endif
}
}
/* Fork here. */
if(options.opt & MPG321_ENABLE_BUFFER)
{
output_pid = fork();
if(output_pid == -1)
{
perror("Error while forking output process");
goto out; /* Release shared memeory and semaphores */
// exit(EXIT_FAILURE);
}
if(output_pid == 0)
{
frame_buffer_p();
exit(EXIT_SUCCESS);
}
signal(SIGUSR1,handle_signals);
if(!(options.opt & MPG321_REMOTE_PLAY))
{
#ifdef HAVE_ALSA
init_alsa_volume_control("default");
if(options.volume != MAD_F_ONE)
mpg321_alsa_set_volume((long)options.volume*volume_max/100);
#endif
}
}
if( (options.volume != MAD_F_ONE) && !(options.opt & MPG321_ENABLE_BUFFER))
{
options.volume = mad_f_tofixed((long)options.volume/100.0);
}
else{
options.volume = MAD_F_ONE; /* When using the buffer options.volume when decoding each frame should be equal to MAD_F_ONE */
// options.volume = mad_f_tofixed((long)100.0/100.0);
}
if (!(options.opt & MPG321_REMOTE_PLAY))
{
if(options.opt & MPG321_ENABLE_BASIC)
{
/* Now create and detach the basic controls thread */
sem_init(&main_lock,0,0);
pthread_create(&keyb_thread,NULL,read_keyb,NULL);
pthread_detach(keyb_thread);
}
}
if(set_xterm)
{
tty_control();
get_term_title(title);
}else
{
if (!(options.opt & MPG321_REMOTE_PLAY))
{
if (tcgetattr(0, &terminal_settings) < 0)
perror("tcgetattr()");
memcpy(&old_terminal_settings, &terminal_settings, sizeof(struct termios));
/* Early thread start */
sem_post(&main_lock);
}
}
/* Play the mpeg files or zip it! */
while((currentfile = get_next_file(pl, &playbuf)))
{
//printf("Current File: %s\n",currentfile);
if (quit_now)
break;
signal(SIGINT, SIG_DFL);
playbuf.buf = NULL;
playbuf.fd = -1;
playbuf.length = 0;
playbuf.done = 0;
playbuf.num_frames = 0;
current_frame = 0;
playbuf.max_frames = -1;
strncpy(playbuf.filename,currentfile, PATH_MAX);
playbuf.filename[PATH_MAX-1] = '\0';
if (status == MPG321_PLAYING || status == MPG321_STOPPED)
file_change = 1;
mad_timer_reset(&playbuf.duration);
mad_timer_reset(¤t_time);
id3struct = NULL;
if (!(options.opt & MPG321_QUIET_PLAY) && file_change)
{
/* id3struct = id3_file_open (currentfile, ID3_FILE_MODE_READONLY);*/
if (id3struct == NULL)
get_id3_info(currentfile, &id3struct, &id3tag);
if(id3tag)
show_id3(id3tag);
}
scrobbler_time = -1;
if(options.opt & MPG321_USE_SCROBBLER)
{
if(id3struct == NULL)
get_id3_info(currentfile,&id3struct,&id3tag);
if (id3tag)
{
char emptystring[31], emptyyear[5] = " ";
int i;
if(parse_id3(scrobbler_args, id3tag))
{
memset(emptystring, ' ', 30);
emptystring[30] = '\0';
if((options.opt & MPG321_VERBOSE_PLAY) && (options.opt & MPG321_USE_SCROBBLER))
{
fprintf(stderr, "\nPreparing for the AudioScrobbler:\n");
for(i = 0; i < 6; i++)
{
if(scrobbler_args[i] == NULL)
scrobbler_args[i] =
( i == 3 ? emptyyear: emptystring);
fprintf(stderr, "- %s\n", scrobbler_args[i]);
}
}
}
}
}
if (options.opt & MPG321_REMOTE_PLAY && file_change)
{
if(id3struct == NULL)
get_id3_info(currentfile, &id3struct, &id3tag);
if(id3tag)
{
if (!show_id3(id3tag))
{
/* This shouldn't be necessary, but it appears that
libid3tag doesn't necessarily know if there are no
id3 tags on a given mp3 */
char * basec = strdup(currentfile);
char * basen = basename(basec);
char * dot = strrchr(basen, '.');
if (dot)
*dot = '\0';
printf("@I %s\n", basen);
free(basec);
}
}
else
{
char * basec = strdup(currentfile);
char * basen = basename(basec);
char * dot = strrchr(basen, '.');
if (dot)
*dot = '\0';
printf("@I %s\n", basen);
free(basec);
}
}
if(id3struct != NULL)
id3_file_close(id3struct);
/* Create the MPEG stream */
/* Check if source is on the network */
if((fd = raw_open(currentfile)) != 0 || (fd = http_open(currentfile)) != 0
|| (fd = ftp_open(currentfile)) != 0)
{
playbuf.fd = fd;
playbuf.buf = malloc(BUF_SIZE);
playbuf.length = BUF_SIZE;
if(options.opt & MPG321_ENABLE_BUFFER)
{
Decoded_Frames->is_http = 1;
Decoded_Frames->is_file = 0;
}
calc_http_length(&playbuf);
mad_decoder_init(&decoder, &playbuf, read_from_fd, read_header, /*filter*/0,
output, handle_error, /* message */ 0);
}
/* Check if we are to use stdin for input */
else if(strcmp(currentfile, "-") == 0)
{
playbuf.fd = fileno(stdin);
playbuf.buf = malloc(BUF_SIZE);
playbuf.length = BUF_SIZE;
mad_decoder_init(&decoder, &playbuf, read_from_fd, read_header, /*filter*/0,
output, handle_error, /* message */ 0);
}
/* currentfile is a local file (presumably.) mmap() it */
else
{
struct stat stat;
if((fd = open(currentfile, O_RDONLY)) == -1)
{
mpg321_error(currentfile);
/* Restore TTY from keyboard reader thread */
if(options.opt & MPG321_ENABLE_BASIC)
if (tcsetattr(0, TCSANOW, &old_terminal_settings) < 0)
perror("tcsetattr ICANON");
if(set_xterm)
{
set_tty_restore();
osc_print(0,0,title);
if (ctty)
fclose(ctty);
}
if( options.opt & MPG321_REMOTE_PLAY)
if(remote_restart)
{
clear_remote_file(pl); /* If restart is enabled, restart remote shell when file doesn't exist*/
continue;
}
if(options.opt & MPG321_ENABLE_BUFFER)
goto out;
else
exit(1);
/* mpg123 stops immediately if it can't open a file */
/* If sth goes wrong break!!!*/
break;
}
if(options.opt & MPG321_ENABLE_BUFFER)
{
Decoded_Frames->is_http = 0;
Decoded_Frames->is_file = 1;
}
if(fstat(fd, &stat) == -1)
{
mpg321_error(currentfile);
close(fd);
continue;
}
if (!S_ISREG(stat.st_mode))
{
if(S_ISFIFO(stat.st_mode))
{
fallback = 1;
goto fall_back_to_read_from_fd;
}
close(fd);
continue;
}
retval = calc_length(currentfile, &playbuf); //FIXME Check also if it is an mp3 file. If not break and go to the next file possible
if(retval < 0)
{
if(options.opt & MPG321_REMOTE_PLAY)
{
fprintf(stderr,"@E Corrupted file: %s\n",currentfile);
close(fd);
if(remote_restart)
{
clear_remote_file(pl); /* If restart is enabled, restart remote shell when file is corrupted */
continue;
}
break;
}
mpg321_error(currentfile);
close(fd);
// break; //FIXME Break and stop OR continue the playlist ????
continue;
}
if((options.opt & MPG321_VERBOSE_PLAY) && (options.opt & MPG321_USE_SCROBBLER))
fprintf(stderr, "Track duration: %ld seconds\n",playbuf.duration.seconds);
if(options.opt & MPG321_USE_SCROBBLER)
scrobbler_set_time(playbuf.duration.seconds);
if ((options.maxframes != -1) && (options.maxframes <= playbuf.num_frames))
{
playbuf.max_frames = options.maxframes;
}
playbuf.frames = malloc((playbuf.num_frames + 1) * sizeof(void*));
playbuf.times = malloc((playbuf.num_frames + 1) * sizeof(mad_timer_t));
#ifdef __uClinux__
if((playbuf.buf = mmap(0, playbuf.length, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED)
#else
if((playbuf.buf = mmap(0, playbuf.length, PROT_READ, MAP_SHARED, fd, 0)) == MAP_FAILED)
#endif
{
mpg321_error(currentfile);
continue;
}
playbuf.frames[0] = playbuf.buf;
mad_decoder_init(&decoder, &playbuf, read_from_mmap, read_header, /*filter*/0,
output, handle_error, /* message */ 0);
fall_back_to_read_from_fd: //FIXME. Reported that on some embedded systems with low memory, less than 16MB doesn't work properly.
if(fallback)
{
playbuf.fd = fd;
playbuf.buf = malloc(BUF_SIZE);
playbuf.length = BUF_SIZE;
mad_decoder_init(&decoder, &playbuf, read_from_fd, read_header, /*filter*/0,
output, handle_error, /* message */ 0);
fallback = 1;
}
}
if(!(options.opt & MPG321_QUIET_PLAY))/*zip it!!!*/
{
/* Because dirname might modify the argument */
char * dirc = strdup(currentfile);
char * basec = strdup(currentfile);
char * basen = basename(basec);
char * dirn = dirname(dirc);
/* make sure that the file has a pathname; otherwise don't print out
a Directory: listing */
if(strchr(currentfile, '/') && strncmp(old_dir, dirn, PATH_MAX) != 0)
{
/* Print information about the file */
fprintf(stderr, "\n");
fprintf(stderr,"Directory: %s\n", dirn);
strncpy(old_dir, dirn, PATH_MAX);
old_dir[PATH_MAX-1] = '\0';
}
/* print a newline between different songs only, not after
Directory: listing */
else
{
fprintf(stderr, "\n");
}
fprintf(stderr,"Playing MPEG stream from %s ...\n", basen);
/* Printing xterm title */
if(set_xterm)
{
osc_print(0,0,basen);
}
free(dirc);
free(basec);
}
signal(SIGINT, handle_signals);
signal(SIGCHLD, handle_sigchld);
/*Give control back so that we can implement SIG's*/
if(set_xterm)
{
set_tty_restore();
if (tcgetattr(0, &terminal_settings) < 0)
perror("tcgetattr()");
memcpy(&old_terminal_settings, &terminal_settings, sizeof(struct termios));
/* disable canonical mode processing in the line discipline driver */
terminal_settings.c_lflag &= ~(ICANON | ECHO);
/* apply our new settings */
if (tcsetattr(0, TCSANOW, &terminal_settings) < 0)
perror("tcsetattr ICANON");
if(options.opt & MPG321_ENABLE_BASIC)
{
/* Late thread start */
sem_post(&main_lock);
}
}
/* Every time the user gets us to rewind, we exit decoding,
reinitialize it, and re-start it */
if(options.opt & MPG321_ENABLE_BUFFER)
{
Decoded_Frames->total_decoded_frames = 0;
Decoded_Frames->done = 0;
}
while (1)
{
decoder.options |= MAD_OPTION_IGNORECRC;
mad_decoder_run(&decoder, MAD_DECODER_MODE_SYNC);
if(options.opt & MPG321_ENABLE_BUFFER)
{
static struct sembuf start_sops = {2,-1,0};
semop(semarray,&start_sops,1);
mad_decoder_position = 0;
output_buffer_position = 0;
union semun sem_ops;
sem_ops.val = 0;
semctl(semarray,2,SETVAL,sem_ops);
Decoded_Frames->total_decoded_frames = 0;
Decoded_Frames->done = 0;
Decoded_Frames->is_http = 0;
Decoded_Frames->is_file = 0;
}
/* if we're rewinding on an mmap()ed stream */
if(status == MPG321_REWINDING && playbuf.fd == -1)
{
mad_decoder_init(&decoder, &playbuf, read_from_mmap, read_header, /*filter*/0,
output, /*error*/0, /* message */ 0);
}
else
break;
}
if (!(options.opt & MPG321_QUIET_PLAY))
{
char time_formatted[11];
mad_timer_string(current_time, time_formatted, "%.1u:%.2u", MAD_UNITS_MINUTES,
MAD_UNITS_SECONDS, 0);
fprintf(stderr," \r");
fprintf(stderr, "\n[%s] Decoding of %s finished.\n",time_formatted, basename(currentfile)); /* Report total decoded seconds. Maybe for the frame buffer report only total played time?? */
}
if (options.opt & MPG321_REMOTE_PLAY && status == MPG321_STOPPED)
{
clear_remote_file(pl);
}
mad_decoder_finish(&decoder);
if (playbuf.frames)
free(playbuf.frames);
if (playbuf.times)
free(playbuf.times);
if (playbuf.fd == -1)
{
munmap(playbuf.buf, playbuf.length);
close(fd);
}
else
{
free(playbuf.buf);
if (playbuf.fd != fileno(stdin))
close(playbuf.fd);
}
}
if(!(options.opt & MPG321_ENABLE_BUFFER))
{
if(playdevice)
ao_close(playdevice);
ao_shutdown();
}
if (!(options.opt & MPG321_REMOTE_PLAY))
{
if(options.opt & MPG321_ENABLE_BASIC)
{
pflag = 1;
/* Restore TTY from keyboard reader thread */
if (tcsetattr(0, TCSANOW, &old_terminal_settings) < 0)
perror("tcsetattr ICANON");
}
}
/*Restoring TTY*/
if(set_xterm)
{
set_tty_restore();
osc_print(0,0,title);
if (ctty)
fclose(ctty);
}
out:
if(options.opt & MPG321_ENABLE_BUFFER)
{
if(kill(output_pid,SIGUSR1) == -1)
perror("Error while stopping output process");
static int wstatus;
wait(&wstatus);
if(wstatus == -1)
perror("Error while waiting for output process to exit");
if(semctl(semarray,0,IPC_RMID) == -1)
perror("Error while destroying semaphores");
if(shmdt(Output_Queue) == -1)
perror("Error while detaching shared buffer");
if(shmctl(shm_id,IPC_RMID,NULL))
perror("Cannot destroy shared buffer");
if(shmctl(frames_id,IPC_RMID,NULL))
perror("Cannot destroy shared buffer");
}
return(0);
}
long madaudiofile::update_duration(FILE *f) {
bool oldEOF = reachedEOF;
reachedEOF = false;
current_pos = 0;
frame_count = 0;
outputLength = 0;
outputPosition = 0;
// samplerate = 44100;
samplerate = 16000;
//bool firstRun = true;
if (!f)
throw "madaudiofile::update_duration(): file is not opened\n";
fpos_t oldPosition;
fgetpos(f,&oldPosition);
fseek(f, 0, SEEK_SET);
/*
struct mad_header m_header;
mad_timer_reset(Timer);
while(!reachedEOF) {
if(Stream->buffer==NULL || Stream->error==MAD_ERROR_BUFLEN ||
firstRun) {
firstRun = false;
size_t ReadSize,Remaining;
unsigned char *ReadStart;
u_int8_t *GuardPtr = NULL;
if(Stream->next_frame!=NULL) {
Remaining=Stream->bufend-Stream->next_frame;
memmove(InputBuffer,Stream->next_frame,Remaining);
ReadStart=InputBuffer+Remaining;
ReadSize=INPUT_BUFFER_SIZE-Remaining;
}
else {
ReadSize=INPUT_BUFFER_SIZE;
ReadStart=InputBuffer;
Remaining=0;
}
ReadSize = readData(ReadStart,1,ReadSize,f);
if(ReadSize <= 0)
throw "Madaudiofile: could not read from file\n";
if(reachedEOF) {
GuardPtr=ReadStart+ReadSize;
memset(GuardPtr,0,MAD_BUFFER_GUARD);
ReadSize+=MAD_BUFFER_GUARD;
}
mad_stream_buffer(Stream,InputBuffer,ReadSize);
}
while(1) {
if( mad_header_decode(&m_header, Stream) == -1 ) {
if( MAD_RECOVERABLE(Stream->error) ) {
continue;
} else if( Stream->error == MAD_ERROR_BUFLEN ) {
break; // EOF
} else {
break; // BAD ERROR, oh well
}
}
mad_timer_add(Timer, m_header.duration);
}
}
*/
double dur = 0;
/*while(!eof()) */{
audiodata ad = getNextAudioSlice(1000, false);
dur += ad.getDuration();
}
duration = (long int) dur;
fsetpos(f,&oldPosition);
/*
duration = mad_timer_count(*Timer, MAD_UNITS_MILLISECONDS);
mad_header_finish(&m_header);
*/
#ifdef HAVE_MAD_H
mad_synth_finish(Synth);
mad_frame_finish(Frame);
mad_stream_finish(Stream);
memset(OutputBuffer, 0, OUTPUT_BUFFER_SIZE);
memset(InputBuffer, 0, INPUT_BUFFER_SIZE + MAD_BUFFER_GUARD);
mad_stream_init(Stream);
mad_frame_init(Frame);
mad_synth_init(Synth);
mad_timer_reset(Timer);
Stream->error=(mad_error)0;
#endif // HAVE_MAD_H
reachedEOF = oldEOF;
#ifdef MADAUDIO_PRINT_DEBUG
printf("Got duration %li\n",duration);
#endif
return duration;
}
static int mp3_startread(snd_stream_t *stream)
{
mp3_priv_t *p = (mp3_priv_t *) stream->priv;
size_t ReadSize;
mad_stream_init(&p->Stream);
mad_frame_init(&p->Frame);
mad_synth_init(&p->Synth);
mad_timer_reset(&p->Timer);
/* Decode at least one valid frame to find out the input
* format. The decoded frame will be saved off so that it
* can be processed later.
*/
ReadSize = FS_fread(p->mp3_buffer, 1, MP3_BUFFER_SIZE, &stream->fh);
if (ReadSize != MP3_BUFFER_SIZE)
{
if (FS_feof(&stream->fh) || FS_ferror(&stream->fh))
return -1;
}
mad_stream_buffer(&p->Stream, p->mp3_buffer, ReadSize);
/* Find a valid frame before starting up. This makes sure
* that we have a valid MP3 and also skips past ID3v2 tags
* at the beginning of the audio file.
*/
p->Stream.error = MAD_ERROR_NONE;
while (mad_frame_decode(&p->Frame,&p->Stream))
{
/* check whether input buffer needs a refill */
if (p->Stream.error == MAD_ERROR_BUFLEN)
{
if (mp3_inputdata(stream) == -1)
return -1;
continue;
}
/* Consume any ID3 tags */
mp3_inputtag(stream);
/* FIXME: We should probably detect when we've read
* a bunch of non-ID3 data and still haven't found a
* frame. In that case we can abort early without
* scanning the whole file.
*/
p->Stream.error = MAD_ERROR_NONE;
}
if (p->Stream.error)
{
Con_Printf("MP3: No valid MP3 frame found\n");
return -1;
}
switch(p->Frame.header.mode)
{
case MAD_MODE_SINGLE_CHANNEL:
case MAD_MODE_DUAL_CHANNEL:
case MAD_MODE_JOINT_STEREO:
case MAD_MODE_STEREO:
stream->info.channels = MAD_NCHANNELS(&p->Frame.header);
break;
default:
Con_Printf("MP3: Cannot determine number of channels\n");
return -1;
}
p->FrameCount = 1;
mad_timer_add(&p->Timer,p->Frame.header.duration);
mad_synth_frame(&p->Synth,&p->Frame);
stream->info.width = MP3_MAD_SAMPLEWIDTH;
stream->info.rate = p->Synth.pcm.samplerate;
p->cursamp = 0;
return 0;
}
