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/*
mpg321 - a fully free clone of mpg123.
Copyright (C) 2001 Joe Drew
Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Nanakos Chrysostomos
Originally based heavily upon:
plaympeg - Sample MPEG player using the SMPEG library
Copyright (C) 1999 Loki Entertainment Software
Also uses some code from
mad - MPEG audio decoder
Copyright (C) 2000-2001 Robert Leslie
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _MPG321_H_
#define _MPG321_H_
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <stdio.h>
#include <limits.h>
#include <ao/ao.h>
#include <mad.h>
#include <semaphore.h>
#define FAKEVERSION "0.3.2-1"
#define VERSIONDATE "2012/03/25"
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
/* playlist structure */
typedef struct pl
{
char **files;
int numfiles;
int files_size;
int random_play;
char remote_file[PATH_MAX];
} playlist;
/* Private buffer for passing around with libmad */
typedef struct
{
/* The buffer of raw mpeg data for libmad to decode */
void * buf;
/* Cached data: pointers to the dividing points of frames
in buf, and the playing time at each of those frames */
void **frames;
mad_timer_t *times;
/* fd is the file descriptor if over the network, or -1 if
using mmap()ed files */
int fd;
/* length of the current stream, corrected for id3 tags */
ssize_t length;
/* have we finished fetching this file? (only in non-mmap()'ed case */
int done;
/* total number of frames */
unsigned long num_frames;
/* number of frames to play */
unsigned long max_frames;
/* total duration of the file */
mad_timer_t duration;
/* filename as mpg321 has opened it */
char filename[PATH_MAX];
/* the playlist. */
playlist *pl;
} buffer;
typedef struct
{
int opt;
char *devicetype;
char *device;
signed long seek;
signed long maxframes;
mad_fixed_t volume;
int skip_printing_frames;
} mpg321_options;
extern mpg321_options options;
extern ao_device *playdevice;
extern mad_timer_t current_time;
extern unsigned long current_frame;
extern int stop_playing_file;
extern int shuffle_play;
extern char *playlist_file;
extern int quit_now;
extern char remote_input_buf[PATH_MAX + 5];
extern int file_change;
int loop_remaining;
extern int status;
extern int scrobbler_time;
extern char *scrobbler_args[6];
enum
{
MPG321_STOPPED = 0x0001,
MPG321_PAUSED = 0x0002,
MPG321_PLAYING = 0x0004,
MPG321_REWINDING = 0x0008,
MPG321_SEEKING = 0x0010
};
enum
{
MPG321_VERBOSE_PLAY = 0x00000001,
MPG321_QUIET_PLAY = 0x00000002,
MPG321_REMOTE_PLAY = 0x00000004,
MPG321_USE_OSS = 0x00000010,
MPG321_USE_SUN = 0x00000020,
MPG321_USE_ALSA = 0x00000040,
MPG321_USE_ESD = 0x00000080,
MPG321_USE_ARTS = 0x00000100,
MPG321_USE_NULL = 0x00000200,
MPG321_USE_STDOUT = 0x00000400,
MPG321_USE_WAV = 0x00000800,
MPG321_USE_AU = 0x00001000,
MPG321_USE_CDR = 0x00002000,
MPG321_USE_USERDEF = 0x00004000,
MPG321_USE_ALSA09 = 0x00008000,
MPG321_FORCE_STEREO = 0x00010000,
MPG321_USE_SCROBBLER = 0x00020000,
MPG321_RECURSIVE_DIR = 0x00040000,
MPG321_PRINT_FFT = 0x00080000,
MPG321_ENABLE_BASIC = 0x00100000,
MPG321_ENABLE_BUFFER = 0x01000000,
};
#define DEFAULT_PLAYLIST_SIZE 2048
#define BUF_SIZE 1048576 /* Size for read buffer for audio data */
/* playlist functions */
playlist * new_playlist();
void resize_playlist(playlist *pl);
char * get_next_file(playlist *pl, buffer *buf);
void add_cmdline_files(playlist *pl, char *argv[]);
void add_cmdline_files_recursive_dir(playlist *pl, char *argv[]);
void add_file(playlist *pl, char *file);
void load_playlist(playlist *pl, char *filename);
void set_random_play(playlist *pl);
void play_remote_file(playlist *pl, char *filename);
void clear_remote_file(playlist *pl);
void shuffle_files(playlist *pl);
void trim_whitespace(char *);
/* network functions */
int tcp_open(char * address, int port);
int udp_open(char * address, int port);
int raw_open(char * arg);
int http_open(char * arg);
int ftp_open(char * arg);
/* libmad interfacing functions */
enum mad_flow read_from_mmap(void *data, struct mad_stream *stream);
enum mad_flow read_from_fd(void *data, struct mad_stream *stream);
enum mad_flow read_header(void *data, struct mad_header const * header);
enum mad_flow output(void *data, struct mad_header const *header, struct mad_pcm *pcm);
int calc_length(char *file, buffer*buf );
static enum mad_flow handle_error(void *data, struct mad_stream *stream, struct mad_frame *frame);
enum mad_flow move(buffer *buf, signed long frames);
void seek(buffer *buf, signed long frame);
void pause_play(buffer *buf, playlist *pl);
/* libao interfacing and general audio-out functions */
void check_ao_default_play_device();
void check_default_play_device();
int playdevice_is_live();
void open_ao_playdevice(struct mad_header const *header);
/* remote control (-R) functions */
void remote_get_input_wait(buffer *buf);
enum mad_flow remote_get_input_nowait(buffer *buf);
/* options */
void parse_options(int argc, char *argv[], playlist *pl);
void mpg321_error(char *file);
void usage(char *);
RETSIGTYPE handle_signals(int sig) ;
/* xterm functions */
int tty_control();
int set_tty_raw();
int set_tty_restore();
int raw_print(char *ctlseq);
int osc_print(int ps1,int ps2,char *pt);
char *ctty_path();
void get_term_title(char *title);
int tty_read(char *output,size_t size);
/* AudioScrobbler functions */
void scrobbler_report(void);
void scrobbler_set_time(long);
void scrobbler_set_verbose(int);
RETSIGTYPE handle_sigchld(int sig);
/* FFT data structures */
#define FFT_BUFFER_SIZE_LOG 9
#define FFT_BUFFER_SIZE (1 << FFT_BUFFER_SIZE_LOG) /* 512 */
/*Temporary data stores to perform FFT in */
double real[FFT_BUFFER_SIZE];
double imag[FFT_BUFFER_SIZE];
typedef struct {
double real[FFT_BUFFER_SIZE];
double imag[FFT_BUFFER_SIZE];
} fft_state;
typedef short int sound_sample;
//void fft_perform(const sound_sample *input, double *output, fft_state *state);
fft_state *fft_init(void);
/*Basic control keys */
#define KEY_CTRL_VOLUME_UP '*'
#define KEY_CTRL_VOLUME_DOWN '/'
#define KEY_CTRL_NEXT_SONG 'n'
#define KEY_CTRL_PAUSE_SONG 'p'
#define KEY_CTRL_MUTE 'm'
/* This is it for the moment */
/* Output buffer process */
void frame_buffer_p();
/* Semaphore array */
int semarray;
/* Input/Output buffer position */
int mad_decoder_position;
int output_buffer_position;
/* Output Frame including needed information */
typedef struct {
unsigned char data[4*1152];
unsigned short length;
signed long seconds;
char time[80];
unsigned long num_frames;
struct mad_header header;
} output_frame;
/* Control structure with detailed information about each frame */
typedef struct {
unsigned long total_decoded_frames;
unsigned long total_played_frames;
int done;
int is_http;
int is_file;
int quit_now;
int stop_playing_file;
int timer;
long bvolume;
} decoded_frames;
/* Output frame queue pointer */
output_frame *Output_Queue;
/* Shared total decoded frames */
decoded_frames *Decoded_Frames;
#if defined(__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED)
/* */
#else
union semun {
int val;
struct semid_ds *buf;
unsigned short *array;
struct seminfo *__buf;
};
#endif
/* Get the next encoding/decoding place in the frame buffer */
int getnext_place(int position);
#endif /* _MPG321_H_ */
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