diff options
Diffstat (limited to 'mp3amp~.c')
| -rw-r--r-- | mp3amp~.c | 1262 |
1 files changed, 1262 insertions, 0 deletions
diff --git a/mp3amp~.c b/mp3amp~.c new file mode 100644 index 0000000..9dfc54e --- /dev/null +++ b/mp3amp~.c @@ -0,0 +1,1262 @@ +/* ------------------------- mp3amp~ ------------------------------------------ */
+/* */
+/* Tilde object to receive an mp3-stream from a shoutcast/icecast server. */
+/* Written by Yves Degoyon (ydegoyon@free.fr). */
+/* Get source at http://ydegoyon.free.fr */
+/* */
+/* This library is free software; you can redistribute it and/or */
+/* modify it under the terms of the GNU Lesser General Public */
+/* License as published by the Free Software Foundation; either */
+/* version 2 of the License, or (at your option) any later version. */
+/* */
+/* This library 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 */
+/* Lesser General Public License for more details. */
+/* */
+/* You should have received a copy of the GNU Lesser General Public */
+/* License along with this library; if not, write to the */
+/* Free Software Foundation, Inc., 59 Temple Place - Suite 330, */
+/* Boston, MA 02111-1307, USA. */
+/* */
+/* Based on PureData by Miller Puckette and others. */
+/* Uses the LAME MPEG 1 Layer 3 encoding library which can be found at */
+/* http://www.mp3dev.org */
+/* */
+/* ---------------------------------------------------------------------------- */
+
+#include <m_pd.h>
+#include "m_imp.h"
+#include "g_canvas.h"
+#include "s_stuff.h"
+#include "pthread.h"
+
+#include <sys/types.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include "mpg123.h" /* mpg123 decoding library from lame 3.92 */
+#include "mpglib.h" /* mpglib decoding library from lame 3.92 */
+#include "interface.h" /* mpglib decoding library from lame 3.92 */
+#ifdef _WIN32
+#include <winsock.h>
+#include <winbase.h>
+#include <io.h>
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#define SOCKET_ERROR -1
+#endif /* _WIN32 */
+
+#ifdef _MSC_VER
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+#if defined(__APPLE__) || defined(WIN32)
+#define MSG_NOSIGNAL 0
+#endif
+#ifdef UNIX
+#define STRDUP strdup
+#endif
+#ifdef WIN32
+#define STRDUP _strdup
+#define sys_closesocket closesocket
+#endif
+
+
+#define LAME_AUDIO_CHUNK_SIZE 1152
+#define MIN_AUDIO_INPUT 2*LAME_AUDIO_CHUNK_SIZE /* we must have at least n chunks to play a steady sound */
+#define INPUT_BUFFER_SIZE 131072 /* data received on the socket : 128k */
+#define OUTPUT_BUFFER_SIZE 131072 /* audio output buffer : 128k */
+#define DECODE_PACKET_SIZE 131072 /* size of the data returned by mpglib : 128k */
+#define STRBUF_SIZE 4096 /* char received from server on startup */
+#define MAX_DECODERS 50
+#define BARHEIGHT 10
+
+static int guidebug=0;
+
+#define SYS_VGUI2(a,b) if (guidebug) \
+ post(a,b);\
+ sys_vgui(a,b)
+
+#define SYS_VGUI3(a,b,c) if (guidebug) \
+ post(a,b,c);\
+ sys_vgui(a,b,c)
+
+#define SYS_VGUI4(a,b,c,d) if (guidebug) \
+ post(a,b,c,d);\
+ sys_vgui(a,b,c,d)
+
+#define SYS_VGUI5(a,b,c,d,e) if (guidebug) \
+ post(a,b,c,d,e);\
+ sys_vgui(a,b,c,d,e)
+
+#define SYS_VGUI6(a,b,c,d,e,f) if (guidebug) \
+ post(a,b,c,d,e,f);\
+ sys_vgui(a,b,c,d,e,f)
+
+#define SYS_VGUI7(a,b,c,d,e,f,g) if (guidebug) \
+ post(a,b,c,d,e,f,g );\
+ sys_vgui(a,b,c,d,e,f,g)
+
+#define SYS_VGUI8(a,b,c,d,e,f,g,h) if (guidebug) \
+ post(a,b,c,d,e,f,g,h );\
+ sys_vgui(a,b,c,d,e,f,g,h)
+
+#define SYS_VGUI9(a,b,c,d,e,f,g,h,i) if (guidebug) \
+ post(a,b,c,d,e,f,g,h,i );\
+ sys_vgui(a,b,c,d,e,f,g,h,i)
+
+
+ /* useful debugging functions from mpglib */
+extern int decode_header( struct frame* fr, unsigned long newhead );
+extern void print_header_compact( struct frame* fr );
+extern int head_check( unsigned long head, int check_layer );
+
+static char *mp3amp_version = "mp3amp~: mp3 streaming client v0.12, written by Yves Degoyon";
+
+/* ------------------------ mp3amp~ ----------------------------- */
+
+static t_class *mp3amp_class;
+
+/* too bad, this needs to be static,
+ handling an array to enable several decoders in pd */
+static MPSTR mps[MAX_DECODERS]; /* decoder buffer */
+static int nbinstances = 0;
+
+extern const long freqs[9];
+
+/* time-out used for select() call */
+static struct timeval ztout;
+
+typedef struct _mp3amp
+{
+ t_object x_obj;
+ t_int x_instance; /* instance of the object */
+ t_outlet *x_connection;
+ t_int x_fd; /* the socket number */
+ t_int x_inframes; /* number of waiting frames */
+ t_int x_dframes; /* displayed frames in status bar */
+ t_int x_packetsize; /* size of the packets */
+ t_int x_pblocks; /* processed blocks */
+ t_int x_graphic; /* indicates if we show a graphic bar */
+ t_canvas *x_canvas; /* remember canvas */
+ t_int x_nbwaitloops; /* number of loops to wait */
+ t_int x_nbloops; /* number of loops processed */
+ t_int x_blocksize; /* size of a dsp block */
+ t_int x_resample; /* resampling factor (pd's sr / stream sr) */
+ t_int x_dsp; /* number of dsp calls, used to measure time */
+ t_int x_standby; /* flag to freeze decoding */
+ t_int x_nooutput; /* flag to avoid output of connection state */
+
+#ifdef UNIX
+ unsigned char *x_inbuffer; /* accumulation buffer for incoming mp3 frames */
+#else
+ char *x_inbuffer; /* accumulation buffer for incoming mp3 frames */
+#endif
+
+ t_int x_inwriteposition;
+ t_int x_inbuffersize;
+ t_int x_offset; /* offset used for start of decoding */
+
+ t_float *x_outbuffer; /* buffer to store audio decoded data */
+ t_int x_outwriteposition;
+ t_int x_outreadposition;
+ t_int x_outunread;
+ t_int x_outbuffersize;
+ char x_out[DECODE_PACKET_SIZE];
+
+ /* mp3 stuff */
+ t_int x_samplerate;
+ t_int x_bitrate; /* bitrate of mp3 stream read at connection time */
+ t_int x_bitrateindex; /* bitrate index for each frame, might change dynamically */
+ t_int x_mp3mode; /* mode (mono, joint stereo, stereo, dual mono) */
+ char* x_bcname; /* name of broadcast */
+ char* x_bcurl; /* url of broadcast */
+ char* x_bcgenre; /* genre of broadcast */
+ char* x_bcaim; /* aim of broadcast */
+ char* x_mountpoint; /* mountpoint for IceCast server */
+ char* x_hostname; /* hostname to connect to */
+ t_int x_port; /* port number to connect to */
+
+ t_int x_stream; /* indicates if a stream is connected ( meaning correct input flow ) */
+} t_mp3amp;
+
+static void mp3amp_recv(t_mp3amp *x);
+static void mp3amp_disconnect(t_mp3amp *x);
+static void mp3amp_connect_url(t_mp3amp *x, t_symbol *url);
+
+static int strip_shout_header(char *head, int n)
+{
+ int i;
+ for (i = 0; i < (n - 2); i++)
+ {
+ if (head[i] == 10 && head[i + 1] == 13)
+ break;
+ if (head[i] == '\n' && head[i + 1] == '\n')
+ break;
+ }
+ head[i + 1] = '\0';
+ return n - (i + 1);
+}
+
+static int strip_ice_header(char *head, int n)
+{
+ int i;
+ for (i = 0; i < (n - 2); i++)
+ {
+ if ((head[i] == '\n') && (head[i + 1] == '\n'))
+ break;
+ }
+ head[i + 1] = '\0';
+ return n - (i + 1);
+}
+
+static void mp3amp_tilde_mpglib_init(t_mp3amp *x)
+{
+ int ret;
+
+ InitMP3(&mps[x->x_instance]);
+}
+
+static int mp3amp_decode_input(t_mp3amp *x)
+{
+ t_int i;
+ t_int alength = 0;
+ float resample = 0;
+ struct frame hframe;
+ unsigned int a,b,c,d;
+ unsigned long cheader;
+ signed short int *p = (signed short int *) x->x_out;
+ t_int pbytes;
+ t_int ret, totlength=0;
+ t_int pframes = 0;
+
+ x->x_offset=0;
+ // search for an header to check dynamic bitrate
+ while ( x->x_offset < x->x_inwriteposition )
+ {
+ /* decode first 4 bytes as the header */
+ a = *((unsigned char*)x->x_inbuffer+x->x_offset);
+ b = *((unsigned char*)x->x_inbuffer+x->x_offset+1);
+ c = *((unsigned char*)x->x_inbuffer+x->x_offset+2);
+ d = *((unsigned char*)x->x_inbuffer+x->x_offset+3);
+
+ cheader = 0;
+ cheader = a;
+ cheader <<= 8;
+ cheader |= b;
+ cheader <<= 8;
+ cheader |= c;
+ cheader <<= 8;
+ cheader |= d;
+ if ( head_check( cheader, 0 ) )
+ {
+ decode_header( &hframe, cheader );
+ if ( hframe.framesize == 0 )
+ {
+ post( "mp3amp~: weird header ( frame size = 0 ) .... ignored" );
+ x->x_offset++;
+ continue;
+ }
+ x->x_packetsize = hframe.framesize;
+ // print_header_compact( &hframe );
+ // when the bitrate change, reinit decoder
+ if ( x->x_bitrateindex != hframe.bitrate_index )
+ {
+ post( "mp3amp~: bitrate has changed, reinitialize decoder" );
+ ExitMP3(&mps[x->x_instance]);
+ InitMP3(&mps[x->x_instance]);
+ x->x_bitrateindex = hframe.bitrate_index;
+ }
+ break;
+ }
+ x->x_offset++;
+ }
+
+ if ( x->x_inframes > 0 )
+ {
+
+ ret = decodeMP3(&mps[x->x_instance], (unsigned char*)(x->x_inbuffer+x->x_offset),
+ hframe.framesize+sizeof( unsigned long), (char *) p, sizeof(x->x_out), &pbytes);
+
+ switch (ret)
+ {
+ case MP3_OK:
+ switch (mps[x->x_instance].fr.stereo) {
+ case 1:
+ case 2:
+ alength = ((mps[x->x_instance].fr.stereo==1)?pbytes >> 1 : pbytes >> 2);
+ // post( "mp3amp~: stereo : %d", mps[x->x_instance].fr.stereo );
+ // update outbuffer contents
+ for ( i=0; i<alength; i++ )
+ {
+ if ( x->x_outunread >= x->x_outbuffersize-2 )
+ {
+ // post( "mp3amp~: decode : too much input ... ignored" );
+ continue;
+ }
+ *(x->x_outbuffer+x->x_outwriteposition) = ((t_float)(*p++))/32767.0;
+ x->x_outwriteposition = (x->x_outwriteposition + 1)%x->x_outbuffersize;
+ *(x->x_outbuffer+x->x_outwriteposition) =
+ ((mps[x->x_instance].fr.stereo==2)?((t_float)(*p++))/32767.0 : 0.0);
+ x->x_outwriteposition = (x->x_outwriteposition + 1)%x->x_outbuffersize;
+ x->x_outunread+=2;
+
+ if ( x->x_outunread >= MIN_AUDIO_INPUT && !x->x_stream )
+ {
+ post("mp3amp~: stream connected" );
+ x->x_resample = x->x_samplerate / freqs[hframe.sampling_frequency];
+ if ( x->x_resample == 0 ) x->x_resample=1;
+ post("mp3amp~: resampling stream from %d to %d Hz (r=%d)",
+ freqs[hframe.sampling_frequency], x->x_samplerate, x->x_resample );
+ x->x_stream = 1;
+ }
+ }
+ break;
+ default:
+ alength = -1;
+ break;
+ }
+ // roll buffer
+ if ( x->x_inwriteposition > hframe.framesize+ (int) sizeof( unsigned long ) + x->x_offset )
+ // ^----- maybe the frame is not complete
+ {
+ x->x_inwriteposition -= hframe.framesize+sizeof( unsigned long )+x->x_offset;
+ memcpy( (void *)(x->x_inbuffer),
+ (void *)(x->x_inbuffer+x->x_offset+hframe.framesize+sizeof( unsigned long )),
+ x->x_inwriteposition);
+ x->x_offset = 0;
+ // post ( "mp3amp~: decoded frame %d", x->x_inframes );
+ x->x_inframes--;
+ pframes++;
+ }
+ else // sorry, it will be ignored
+ {
+ // error( "mp3amp~: incomplete frame...ignored");
+ // x->x_offset = 0;
+ // x->x_inwriteposition = 0;
+ // x->x_inframes = 0;
+ }
+
+ totlength += alength;
+ break;
+
+ case MP3_NEED_MORE:
+ if ( mps[x->x_instance].framesize == 0 && mps[x->x_instance].fsizeold != 0 )
+ {
+ post( "mp3amp~: decoding done (totlength=%d).", totlength );
+ }
+ else
+ {
+ post( "mp3amp~: retry lame decoding (more data needed)." );
+ return -1;
+ }
+ break;
+
+ case MP3_ERR:
+ post( "mp3amp~: lame decoding failed." );
+ return ret;
+ break;
+
+ }
+
+ }
+
+ if ( x->x_graphic && glist_isvisible( x->x_canvas ) )
+ {
+ /* update graphical read status */
+ if ( x->x_inframes != x->x_dframes )
+ {
+ char color[32];
+ t_int width;
+
+ width = rtext_width( glist_findrtext( (t_glist*)x->x_canvas, (t_text *)x ) );
+ SYS_VGUI3(".x%x.c delete rectangle %xSTATUS\n", x->x_canvas, x );
+ if ( x->x_inframes < (MIN_AUDIO_INPUT/LAME_AUDIO_CHUNK_SIZE) )
+ {
+ strcpy( color, "red" );
+ }
+ else
+ {
+ strcpy( color, "lightgreen" );
+ }
+ SYS_VGUI8(".x%x.c create rectangle %d %d %d %d -fill %s -tags %xSTATUS\n",
+ x->x_canvas, x->x_obj.te_xpix, x->x_obj.te_ypix-BARHEIGHT-1,
+ x->x_obj.te_xpix+(x->x_inwriteposition*width)/INPUT_BUFFER_SIZE,
+ x->x_obj.te_ypix - 1, color, x );
+ x->x_dframes = x->x_inframes;
+ }
+ }
+ return totlength;
+}
+
+static void mp3amp_recv(t_mp3amp *x)
+{
+ int ret, i;
+ float resample = 0;
+ struct frame hframe;
+ unsigned int a,b,c,d;
+ unsigned long cheader;
+
+#ifdef UNIX
+ if ( ( ret = recv(x->x_fd, (void*) (x->x_inbuffer + x->x_inwriteposition),
+ (size_t)((x->x_inbuffersize-x->x_inwriteposition)),
+ MSG_NOSIGNAL) ) < 0 )
+#else
+ if(( ret = recv(x->x_fd, (char*)x->x_inbuffer + x->x_inwriteposition,
+ (x->x_inbuffersize-x->x_inwriteposition), 0)) < 0)
+#endif
+ {
+ post( "mp3amp~: receive error" );
+#ifdef UNIX
+ perror( "recv" );
+#endif
+ mp3amp_disconnect(x);
+ return;
+ }
+ else
+ {
+
+ // post( "mp3amp~: received %d bytes at %d on %d ( up to %d)",
+ // ret, x->x_inwriteposition, x->x_fd,
+ // x->x_inbuffersize-x->x_inwriteposition );
+
+ if ( ret == 0 && ( x->x_inbuffersize-x->x_inwriteposition != 0 ) )
+ {
+ error("mp3amp~: stream lost...");
+ mp3amp_disconnect(x);
+ }
+ else
+ {
+ // check if we should decode those packets
+ if ( x->x_standby )
+ {
+ return;
+ }
+ // check we don't overflow input buffer
+ if ( ( x->x_inwriteposition + ret ) > x->x_inbuffersize*0.9 )
+ {
+ post( "mp3streamin~ : too much input...resetting" );
+ x->x_inwriteposition=0;
+ x->x_offset = 0;
+ x->x_inframes = 0;
+ return;
+ }
+ x->x_inwriteposition += ret;
+ x->x_offset = 0;
+ // check some parameters in the stream
+ while ( x->x_offset < x->x_inwriteposition )
+ {
+ /* decode first 4 bytes as the header */
+ a = *((unsigned char*)x->x_inbuffer+x->x_offset);
+ b = *((unsigned char*)x->x_inbuffer+x->x_offset+1);
+ c = *((unsigned char*)x->x_inbuffer+x->x_offset+2);
+ d = *((unsigned char*)x->x_inbuffer+x->x_offset+3);
+
+ cheader = 0;
+ cheader = a;
+ cheader <<= 8;
+ cheader |= b;
+ cheader <<= 8;
+ cheader |= c;
+ cheader <<= 8;
+ cheader |= d;
+ if ( head_check( cheader, 0 ) )
+ {
+ decode_header( &hframe, cheader );
+ // print_header_compact( &hframe );
+ x->x_packetsize = hframe.framesize;
+ if ( hframe.framesize == 0 )
+ {
+ post( "mp3amp~: weird header ( frame size = 0 ) .... ignored" );
+ x->x_inwriteposition -= ret;
+ return;
+ }
+ x->x_inframes += ret/x->x_packetsize;
+ // post( "mp3amp~: nb frames %d", x->x_inframes );
+ break;
+ }
+ x->x_offset++;
+ }
+ }
+ }
+}
+
+static t_int *mp3amp_perform(t_int *w)
+{
+ t_mp3amp *x = (t_mp3amp*) (w[1]);
+ t_float *out1 = (t_float *)(w[2]);
+ t_float *out2 = (t_float *)(w[3]);
+ int n = (int)(w[4]);
+ int ret;
+ int i = 0;
+
+ x->x_blocksize = n;
+ x->x_nbwaitloops = LAME_AUDIO_CHUNK_SIZE/x->x_blocksize;
+ // post( "mp3mp3amp~ : will wait %d loops", x->x_nbwaitloops );
+ x->x_dsp++;
+
+ while( n-- )
+ {
+ if(x->x_stream && !x->x_standby ) // check that the stream provides enough data
+ {
+ if(x->x_resample == 1) /* don't need to resample */
+ {
+ *out1++=*(x->x_outbuffer+x->x_outreadposition);
+ x->x_outreadposition = (x->x_outreadposition + 1)%x->x_outbuffersize;
+ *out2++=*(x->x_outbuffer+x->x_outreadposition);
+ x->x_outreadposition = (x->x_outreadposition + 1)%x->x_outbuffersize;
+ x->x_outunread-=2;
+ }
+ else
+ { /* we just use the same sample x->x_resample times */
+ *out1++=*(x->x_outbuffer+x->x_outreadposition);
+ *out2++=*(x->x_outbuffer+((x->x_outreadposition + 1)%x->x_outbuffersize));
+ if((n%x->x_resample)== 0)
+ {
+ x->x_outreadposition = (x->x_outreadposition + 2)%x->x_outbuffersize;
+ x->x_outunread-=2;
+ }
+ }
+ if ( n == 1 ) x->x_pblocks++;
+ }
+ else
+ {
+ *out1++=0.0;
+ *out2++=0.0;
+ }
+ }
+
+ if ( x->x_pblocks == LAME_AUDIO_CHUNK_SIZE/x->x_blocksize )
+ {
+ x->x_pblocks = 0;
+ }
+
+ /* check for readability, then fill the input buffer */
+ if(( x->x_fd > 0 )&&(x->x_dsp >= 16)) /* determine how often we try to read */
+ {
+ fd_set readset;
+ fd_set exceptset;
+
+ FD_ZERO(&readset);
+ FD_ZERO(&exceptset);
+ FD_SET(x->x_fd, &readset );
+ FD_SET(x->x_fd, &exceptset );
+
+ x->x_dsp = 0;
+
+ if ( select( x->x_fd+1, &readset, NULL, &exceptset, &ztout ) >0 )
+ {
+ if ( FD_ISSET( x->x_fd, &readset) || FD_ISSET( x->x_fd, &exceptset ) )
+ {
+ /* receive data or error */
+ mp3amp_recv(x);
+ }
+ }
+ }
+
+ // check new incoming data
+ if ( x->x_fd > 0 && ( x->x_nbloops == 0 ) && ( x->x_inframes > 0 ) && ( !x->x_standby ) )
+ {
+ mp3amp_decode_input(x);
+ }
+ if ( x->x_nbwaitloops != 0 )
+ {
+ x->x_nbloops = (x->x_nbloops+1 ) % x->x_nbwaitloops;
+ }
+ return (w+5);
+}
+
+static void mp3amp_dsp(t_mp3amp *x, t_signal **sp)
+{
+ dsp_add(mp3amp_perform, 4, x, sp[1]->s_vec, sp[2]->s_vec, sp[1]->s_n);
+}
+
+
+ /* freeze decoding */
+static void mp3amp_standby(t_mp3amp *x, t_floatarg fstandby )
+{
+ if ( fstandby == 0. )
+ {
+ x->x_standby = 0;
+ }
+ else
+ {
+ x->x_standby = 1;
+ }
+}
+
+ /* connection main procedure executed by a thread */
+static void *mp3amp_do_connect(void *tdata )
+{
+ t_mp3amp *x = (t_mp3amp*) tdata;
+ struct sockaddr_in server;
+ struct hostent *hp;
+ t_int portno = x->x_port; /* get port from message box */
+
+ /* variables used for communication with server */
+ char *sptr = NULL;
+ char request[STRBUF_SIZE]; /* string to be send to server */
+ char *url; /* used for relocation */
+ fd_set fdset;
+ struct timeval tv;
+ t_int sockfd; /* socket to server */
+ t_int relocate, numrelocs = 0;
+ t_int i, ret, rest, nanswers=0;
+ char *cpoint = NULL;
+ t_int offset = 0, endofheaders = 0;
+
+ if (x->x_fd >= 0)
+ {
+ error("mp3amp~: already connected");
+ return NULL;
+ }
+
+ sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (sockfd < 0)
+ {
+ error("mp3amp~: internal error while attempting to open socket");
+ return NULL;
+ }
+
+ /* connect socket using hostname provided in command line */
+ server.sin_family = AF_INET;
+ hp = gethostbyname(x->x_hostname);
+ if (hp == 0)
+ {
+ post("mp3amp~: bad host?");
+ sys_closesocket(sockfd);
+ return NULL;
+ }
+ memcpy((char *)&server.sin_addr, (char *)hp->h_addr, hp->h_length);
+
+ /* assign client port number */
+ server.sin_port = htons((unsigned short)portno);
+
+ /* try to connect. */
+ post("mp3amp~: connecting to http:/%s:%d/%s", x->x_hostname, x->x_port, x->x_mountpoint );
+ if (connect(sockfd, (struct sockaddr *) &server, sizeof (server)) < 0)
+ {
+ error("mp3amp~: connection failed!\n");
+ sys_closesocket(sockfd);
+ return NULL;
+ }
+ post("mp3amp~: connected : socket opened" );
+
+ /* sheck if we can read/write from/to the socket */
+ FD_ZERO( &fdset);
+ FD_SET( sockfd, &fdset);
+ tv.tv_sec = 0; /* seconds */
+ tv.tv_usec = 500; /* microseconds */
+
+ ret = select(sockfd + 1, &fdset, NULL, NULL, &tv);
+ if(ret != 0)
+ {
+ error("mp3amp~: can not read from socket");
+ sys_closesocket(sockfd);
+ return NULL;
+ }
+ post("mp3amp~: select done" );
+
+ /* check mountpoint */
+ if( strstr(x->x_mountpoint, "listen.pls") )
+ { /* SHOUTcast playlist -> get / */
+ x->x_mountpoint = "";
+ }
+
+ /* build up stuff we need to send to server */
+ sprintf(request, "GET /%s HTTP/1.0 \r\nHost: %s\r\nUser-Agent: mp3amp~ 0.11\r\nAccept: */*\r\n\r\n",
+ x->x_mountpoint, x->x_hostname);
+
+ if ( send(sockfd, request, strlen(request), 0) < 0 ) /* say hello to server */
+ {
+ post( "mp3amp~: could not contact server... " );
+#ifdef UNIX
+ perror( "send" );
+#endif
+ return NULL;
+ }
+ post("mp3amp~: send done" );
+
+ relocate = FALSE;
+ memset( request, 0x00, STRBUF_SIZE );
+
+ // read all the answer
+ endofheaders=0;
+ while ( !endofheaders )
+ {
+ if( ( ret = recv(sockfd, request+offset, STRBUF_SIZE, MSG_NOSIGNAL) ) <0)
+ {
+ error("mp3amp~: no response from server");
+#ifdef UNIX
+ perror( "recv" );
+#endif
+ return NULL;
+ }
+ post ( "mp3amp~ : received %d bytes at %d", ret, offset );
+ for ( i=offset; i<offset+ret-1; i++ )
+ {
+ if ( ( request[i] == '\n' && request[i+1] == '\n' ) ||
+ ( request[i] == 10 && request[i+1] == 13 ) )
+ {
+ endofheaders=1;
+ }
+ }
+ offset+=ret;
+ }
+
+ // time to parse content of the response...
+ if ( strstr(request, "audio/x-scpls") ) /* SHOUTcast playlist */
+ {
+ /* playlist playing not supported */
+ post("mp3amp~: SHOUTcast server returned a playlist, quitting");
+ sys_closesocket(sockfd);
+ return NULL;
+ }
+ if ( strstr(request, "HTTP") ) /* seems to be IceCast server */
+ {
+ strip_ice_header(request, STRBUF_SIZE);
+ if(sptr = strstr(request, "302"))
+ {
+ cpoint = NULL;
+ cpoint = strstr(request, "Location:");
+ if ( cpoint == NULL )
+ {
+ post( "mp3amp~ : stream has moved but couldn't find new location out of this :" );
+ post("mp3amp~: %s", request );
+ return NULL;
+ }
+ url = STRDUP(cpoint + 10);
+ post("mp3amp~: relocating to %s", url);
+ sys_closesocket(sockfd);
+ x->x_nooutput = 1;
+ mp3amp_connect_url(x, gensym(url));
+ x->x_nooutput = 0;
+ return NULL;
+ // relocate = TRUE;
+ }
+ if( !(sptr = strstr(request, "200")) && !relocate )
+ {
+ error("mp3amp~: cannot connect to the (default) stream");
+ return NULL;
+ }
+
+ post("mp3amp~: IceCast server detected");
+
+ // post("mp3amp~: server's header : %s", request );
+
+ // check what we got
+ if( cpoint = strstr(request, "x-audiocast-mount:"))
+ {
+ x->x_mountpoint = STRDUP(cpoint + 18);
+ for ( i=0; i<(int)strlen(x->x_mountpoint); i++ )
+ {
+ if ( x->x_mountpoint[i] == '\n' )
+ {
+ x->x_mountpoint[i] = '\0';
+ break;
+ }
+ }
+ post(" mountpoint: %s", x->x_mountpoint);
+ }
+ if( cpoint = strstr(request, "x-audiocast-server-url:"))
+ {
+ sptr = STRDUP( cpoint + 24);
+ for ( i=0; i<(int)strlen(sptr); i++ )
+ {
+ if ( sptr[i] == '\n' )
+ {
+ sptr[i] = '\0';
+ break;
+ }
+ }
+ post(" server-url: %s", sptr);
+ }
+ if( cpoint = strstr(request, "x-audiocast-location:"))
+ {
+ sptr = STRDUP( cpoint + 22);
+ for ( i=0; i<(int)strlen(sptr); i++ )
+ {
+ if ( sptr[i] == '\n' )
+ {
+ sptr[i] = '\0';
+ break;
+ }
+ }
+ post(" location: %s", sptr);
+ }
+ if( cpoint = strstr(request, "x-audiocast-admin:"))
+ {
+ sptr = STRDUP( cpoint + 19);
+ for ( i=0; i<(int)strlen(sptr); i++ )
+ {
+ if ( sptr[i] == '\n' )
+ {
+ sptr[i] = '\0';
+ break;
+ }
+ }
+ post(" admin: %s", sptr);
+ }
+ if( cpoint = strstr(request, "x-audiocast-name:"))
+ {
+ x->x_bcname = STRDUP( cpoint + 17);
+ for ( i=0; i<(int)strlen(x->x_bcname); i++ )
+ {
+ if ( x->x_bcname[i] == '\n' )
+ {
+ x->x_bcname[i] = '\0';
+ break;
+ }
+ }
+ post(" name: %s", x->x_bcname);
+ }
+ if( cpoint = strstr(request, "x-audiocast-genre:"))
+ {
+ x->x_bcgenre = STRDUP( cpoint + 18);
+ for ( i=0; i<(int)strlen(x->x_bcgenre); i++ )
+ {
+ if ( x->x_bcgenre[i] == '\n' )
+ {
+ x->x_bcgenre[i] = '\0';
+ break;
+ }
+ }
+ post(" genre: %s", x->x_bcgenre);
+ }
+ if( cpoint = strstr(request, "x-audiocast-url:"))
+ {
+ x->x_bcurl = STRDUP( cpoint + 16);
+ for ( i=0; i<(int)strlen(x->x_bcurl); i++ )
+ {
+ if ( x->x_bcurl[i] == '\n' )
+ {
+ x->x_bcurl[i] = '\0';
+ break;
+ }
+ }
+ post(" url: %s", x->x_bcurl);
+ }
+ if( cpoint = strstr(request, "x-audiocast-public:1"))
+ {
+ post(" broadcast is public");
+ }
+ else if( cpoint = strstr(request, "x-audiocast-public:0"))
+ {
+ post(" broadcast is NOT public");
+ }
+ if( cpoint = strstr(request, "x-audiocast-bitrate:"))
+ {
+ sptr = STRDUP( cpoint + 20);
+ for ( i=0; i<(int)strlen(sptr); i++ )
+ {
+ if ( sptr[i] == '\n' )
+ {
+ sptr[i] = '\0';
+ break;
+ }
+ }
+ if(!strncmp(sptr, "320", 3))x->x_bitrate = 320;
+ else if(!strncmp(sptr, "256", 3))x->x_bitrate = 256;
+ else if(!strncmp(sptr, "224", 3))x->x_bitrate = 224;
+ else if(!strncmp(sptr, "192", 3))x->x_bitrate = 192;
+ else if(!strncmp(sptr, "160", 3))x->x_bitrate = 160;
+ else if(!strncmp(sptr, "144", 3))x->x_bitrate = 144;
+ else if(!strncmp(sptr, "128", 3))x->x_bitrate = 128;
+ else if(!strncmp(sptr, "112", 3))x->x_bitrate = 112;
+ else if(!strncmp(sptr, "96", 2))x->x_bitrate = 96;
+ else if(!strncmp(sptr, "80", 2))x->x_bitrate = 80;
+ else if(!strncmp(sptr, "64", 2))x->x_bitrate = 64;
+ else if(!strncmp(sptr, "56", 2))x->x_bitrate = 56;
+ else if(!strncmp(sptr, "48", 2))x->x_bitrate = 48;
+ else if(!strncmp(sptr, "40", 2))x->x_bitrate = 40;
+ else if(!strncmp(sptr, "32", 2))x->x_bitrate = 32;
+ else if(!strncmp(sptr, "24", 2))x->x_bitrate = 24;
+ else if(!strncmp(sptr, "16", 2))x->x_bitrate = 16;
+ else if(!strncmp(sptr, "8", 1))x->x_bitrate = 8;
+ else
+ {
+ post("mp3amp~: unsupported bitrate! : %s", sptr);
+ return NULL;
+ }
+ post(" bitrate: %d", x->x_bitrate);
+ }
+ if( cpoint = strstr(request, "x-audiocast-udpport:"))
+ {
+ post("mp3amp~: sorry, server wants UDP connection!");
+ return NULL;
+ }
+ }
+ else /* it is a SHOUTcast server */
+ {
+ strip_shout_header (request, STRBUF_SIZE);
+ post("mp3amp~: SHOUTcast server detected");
+ if(strstr(request, "ICY 401") != 0)
+ {
+ post("mp3amp~: ICY 401 Service Unavailable");
+ return NULL;
+ }
+ if (strstr(request, "ICY 200 OK"))
+ {
+ /* recv and decode info about broadcast line by line */
+ post("mp3amp~: connecting to stream...");
+ i = ret;
+ /* check what we got */
+
+ if( cpoint = strstr(request, "icy-name:"))
+ {
+ x->x_bcname = STRDUP( cpoint + 10);
+ for ( i=0; i<(int)strlen(x->x_bcname); i++ )
+ {
+ if ( x->x_bcname[i] == '\n' )
+ {
+ x->x_bcname[i] = '\0';
+ break;
+ }
+ }
+ post(" name: %s", x->x_bcname);
+ }
+ if( cpoint = strstr(request, "x-audiocast-name:"))
+ {
+ x->x_bcname = STRDUP( cpoint + 18);
+ for ( i=0; i<(int)strlen(x->x_bcname); i++ )
+ {
+ if ( x->x_bcname[i] == '\n' )
+ {
+ x->x_bcname[i] = '\0';
+ break;
+ }
+ }
+ post(" name: %s", x->x_bcname);
+ }
+ if( cpoint = strstr(request, "icy-genre:"))
+ {
+ x->x_bcgenre = STRDUP( cpoint + 10);
+ for ( i=0; i<(int)strlen(x->x_bcgenre); i++ )
+ {
+ if ( x->x_bcgenre[i] == '\n' )
+ {
+ x->x_bcgenre[i] = '\0';
+ break;
+ }
+ }
+ post(" name: %s", x->x_bcname);
+ }
+ if( cpoint = strstr(request, "icy-aim:"))
+ {
+ x->x_bcaim = STRDUP( cpoint + 8);
+ for ( i=0; i<(int)strlen(x->x_bcaim); i++ )
+ {
+ if ( x->x_bcaim[i] == '\n' )
+ {
+ x->x_bcaim[i] = '\0';
+ break;
+ }
+ }
+ post(" name: %s", x->x_bcname);
+ }
+ if( cpoint = strstr(request, "icy-url:"))
+ {
+ x->x_bcurl = STRDUP( cpoint + 8);
+ for ( i=0; i<(int)strlen(x->x_bcurl); i++ )
+ {
+ if ( x->x_bcurl[i] == '\n' )
+ {
+ x->x_bcurl[i] = '\0';
+ break;
+ }
+ }
+ post(" name: %s", x->x_bcname);
+ }
+ if(strstr(request, "icy-pub:1"))
+ {
+ post(" broadcast is public");
+ }
+ else if(strstr(request, "icy-pub:0"))
+ {
+ post(" broadcast is NOT public");
+ }
+ if( cpoint = strstr(request, "icy-br:"))
+ {
+ sptr = STRDUP( cpoint + 7);
+ if(!strncmp(sptr, "320", 3))x->x_bitrate = 320;
+ else if(!strncmp(sptr, "256", 3))x->x_bitrate = 256;
+ else if(!strncmp(sptr, "224", 3))x->x_bitrate = 224;
+ else if(!strncmp(sptr, "192", 3))x->x_bitrate = 192;
+ else if(!strncmp(sptr, "160", 3))x->x_bitrate = 160;
+ else if(!strncmp(sptr, "144", 3))x->x_bitrate = 144;
+ else if(!strncmp(sptr, "128", 3))x->x_bitrate = 128;
+ else if(!strncmp(sptr, "112", 3))x->x_bitrate = 112;
+ else if(!strncmp(sptr, "96", 2))x->x_bitrate = 96;
+ else if(!strncmp(sptr, "80", 2))x->x_bitrate = 80;
+ else if(!strncmp(sptr, "64", 2))x->x_bitrate = 64;
+ else if(!strncmp(sptr, "56", 2))x->x_bitrate = 56;
+ else if(!strncmp(sptr, "48", 2))x->x_bitrate = 48;
+ else if(!strncmp(sptr, "40", 2))x->x_bitrate = 40;
+ else if(!strncmp(sptr, "32", 2))x->x_bitrate = 32;
+ else if(!strncmp(sptr, "24", 2))x->x_bitrate = 24;
+ else if(!strncmp(sptr, "16", 2))x->x_bitrate = 16;
+ else if(!strncmp(sptr, "8", 2))x->x_bitrate = 8;
+ else
+ {
+ post("mp3amp~: unsupported bitrate! (%s)", sptr);
+ return NULL;
+ }
+ post(" bitrate: %d", x->x_bitrate);
+ }
+ if(strstr(request, "x-audiocast-udpport:"))
+ {
+ post("mp3amp~: sorry, server wants UDP connection!");
+ return NULL;
+ }
+ }
+ else
+ {
+ post("mp3amp~: unknown response from server");
+ return NULL;
+ }
+ relocate = FALSE;
+ }
+ if (relocate) {
+ error("mp3amp~: too many HTTP relocations");
+ return NULL;
+ }
+ post("mp3amp~: connected to http://%s:%d/%s", hp->h_name, portno, x->x_mountpoint);
+ x->x_fd = sockfd;
+ if ( x->x_graphic && glist_isvisible( x->x_canvas ) )
+ {
+ t_int width;
+
+ width = rtext_width( glist_findrtext( (t_glist*)x->x_canvas, (t_text *)x ) );
+ SYS_VGUI3(".x%x.c delete rectangle %xPBAR\n", x->x_canvas, x );
+ SYS_VGUI7(".x%x.c create rectangle %d %d %d %d -fill lightblue -tags %xPBAR\n",
+ x->x_canvas, x->x_obj.te_xpix, x->x_obj.te_ypix-BARHEIGHT-1,
+ x->x_obj.te_xpix + width, x->x_obj.te_ypix - 1, x );
+ }
+
+ return NULL;
+}
+
+ /* launch the connection thread */
+static void mp3amp_connect(t_mp3amp *x, t_symbol *hostname, t_symbol *mountpoint, t_floatarg fportno )
+{
+ pthread_attr_t update_child_attr;
+ pthread_t connectchild;
+
+ // store data
+ x->x_hostname = (char*) getbytes( strlen( hostname->s_name ) + 1 ); // there's a memory leak here
+ strcpy( x->x_hostname, hostname->s_name );
+
+ x->x_mountpoint = (char*) getbytes( strlen( mountpoint->s_name ) + 1 ); // there's a memory leak here
+ strcpy( x->x_mountpoint, mountpoint->s_name );
+
+ x->x_port = fportno;
+
+ // launch connection thread
+ if ( pthread_attr_init( &update_child_attr ) < 0 ) {
+ post( "mp3amp~ : could not launch connection thread" );
+ perror( "pthread_attr_init" );
+ return;
+ }
+ if ( pthread_attr_setdetachstate( &update_child_attr, PTHREAD_CREATE_DETACHED ) < 0 ) {
+ post( "mp3amp~ : could not launch connection thread" );
+ perror( "pthread_attr_setdetachstate" );
+ return;
+ }
+ if ( pthread_create( &connectchild, &update_child_attr, mp3amp_do_connect, x ) < 0 ) {
+ post( "mp3amp~ : could not launch connection thread" );
+ perror( "pthread_create" );
+ return;
+ }
+ else
+ {
+ // post( "cooled~ : drawing thread %d launched", (int)x->x_updatechild );
+ }
+
+ if ( !x->x_nooutput ) outlet_float(x->x_connection, 1);
+}
+
+ /* connect using url like "http://localhost:8000/mountpoint" */
+static void mp3amp_connect_url(t_mp3amp *x, t_symbol *url)
+{
+ char *hostptr = NULL, *p, *endhost = NULL, *hostname = NULL;
+ char *pathptr = NULL;
+ t_int portno = 8000;
+
+ post( "mp3amp~ : connect url : %s", url->s_name );
+
+ /* strip http:// or ftp:// */
+ p = url->s_name;
+ if (strncmp(p, "http://", 7) == 0)
+ p += 7;
+
+ if (strncmp(p, "ftp://", 6) == 0)
+ p += 6;
+
+ hostptr = p;
+ while (*p && *p != '/' && *p != ':') /* look for end of hostname: */
+ p++;
+
+ endhost = p;
+ switch ( *p )
+ {
+ case ':' :
+ portno = atoi( p+1 );
+ while (*p && *p != '/') p++;
+ pathptr = p+1;
+ break;
+ case '/' :
+ portno = 8000;
+ pathptr = p+1;
+ break;
+ default :
+ if ( ( p - url->s_name ) != (int)strlen( url->s_name ) )
+ {
+ post( "mp3amp~ : wrong url : %s", hostptr );
+ return;
+ }
+ pathptr = "";
+ break;
+ }
+
+ hostname=(char*)getbytes( (int)(endhost - hostptr) + 1);
+ strncpy( hostname, hostptr, (int)(endhost - hostptr) );
+ hostname[ endhost - hostptr ] = '\0';
+
+ post ("mp3amp~ : connecting to host=%s port=%d path=%s", hostname, portno, pathptr );
+
+ /* call the 'normal' connection routine */
+ mp3amp_connect(x, gensym(hostname), gensym(pathptr), portno);
+}
+
+ /* close connection to SHOUTcast server */
+static void mp3amp_disconnect(t_mp3amp *x)
+{
+ x->x_stream = 0;
+ x->x_inframes = 0;
+ x->x_dframes = 0;
+ x->x_inwriteposition = 0;
+ x->x_offset = 0;
+ if(x->x_fd >= 0) /* close socket */
+ {
+ sys_closesocket(x->x_fd);
+ x->x_fd = -1;
+ }
+ ExitMP3(&mps[x->x_instance]);
+ InitMP3(&mps[x->x_instance]);
+ if ( x->x_graphic )
+ {
+ SYS_VGUI3(".x%x.c delete rectangle %xPBAR\n", x->x_canvas, x );
+ SYS_VGUI3(".x%x.c delete rectangle %xSTATUS\n", x->x_canvas, x );
+ }
+ post("mp3amp~: connection closed");
+ outlet_float(x->x_connection, 0);
+}
+
+static void mp3amp_free(t_mp3amp *x)
+{
+ if (x->x_fd > 0) {
+ post( "mp3amp~: closing socket" );
+ sys_closesocket(x->x_fd);
+ x->x_fd = -1;
+ }
+ freebytes(x->x_inbuffer, INPUT_BUFFER_SIZE);
+ freebytes(x->x_outbuffer, OUTPUT_BUFFER_SIZE*sizeof(t_float));
+}
+
+static void *mp3amp_new(t_floatarg fdographics)
+{
+ t_mp3amp *x = NULL;
+
+ if ( ((int)fdographics != 0) && ((int)fdographics != 1.) )
+ {
+ post( "mp3amp~: error : constructor : mp3amp~ [graphic flag = 0 | 1 ] ( got = %f)", fdographics );
+ return NULL;
+ }
+
+ x = (t_mp3amp *)pd_new(mp3amp_class);
+ outlet_new(&x->x_obj, gensym("signal"));
+ outlet_new(&x->x_obj, gensym("signal"));
+ x->x_connection = outlet_new(&x->x_obj, gensym("float"));
+
+ if ( nbinstances < MAX_DECODERS )
+ {
+ x->x_instance = nbinstances++;
+ }
+ else
+ {
+ post( "mp3amp~: cannot create more decoders (memory issues), sorry" );
+ return NULL;
+ }
+
+ x->x_fd = -1;
+ x->x_stream = 0;
+ x->x_inframes = 0;
+ x->x_samplerate = sys_getsr();
+ x->x_nbwaitloops = 1;
+ x->x_nbloops = 0;
+ x->x_dsp = 0;
+
+ x->x_inbuffersize = INPUT_BUFFER_SIZE;
+ x->x_outbuffersize = OUTPUT_BUFFER_SIZE;
+ x->x_inbuffer = (unsigned char*) getbytes(INPUT_BUFFER_SIZE);
+ x->x_offset = 0;
+ x->x_outbuffer = (t_float*) getbytes(OUTPUT_BUFFER_SIZE*sizeof(t_float));
+
+ if ( !x->x_inbuffer || !x->x_outbuffer )
+ {
+ post( "mp3amp~: could not allocate buffers" );
+ return NULL;
+ }
+ memset( x->x_inbuffer, 0x0, INPUT_BUFFER_SIZE );
+ memset( x->x_outbuffer, 0x0, OUTPUT_BUFFER_SIZE );
+
+ x->x_inwriteposition = 0;
+ x->x_outreadposition = 0;
+ x->x_outwriteposition = 0;
+ x->x_outunread = 0;
+ x->x_standby = 0;
+ x->x_resample = -1;
+ x->x_nooutput = 0;
+
+ ztout.tv_sec = 0;
+ ztout.tv_usec = 0;
+
+ x->x_graphic = (int)fdographics;
+ post( "mp3amp~: getting canvas" );
+ x->x_canvas = canvas_getcurrent();
+
+ post( "mp3amp~: initializing decoder..." );
+ /* init mpg123 decoder */
+ mp3amp_tilde_mpglib_init(x);
+
+ post(mp3amp_version);
+
+ return (x);
+}
+
+
+void mp3amp_tilde_setup(void)
+{
+ mp3amp_class = class_new(gensym("mp3amp~"),
+ (t_newmethod) mp3amp_new, (t_method) mp3amp_free,
+ sizeof(t_mp3amp), 0, A_DEFFLOAT, A_NULL);
+
+ class_addmethod(mp3amp_class, nullfn, gensym("signal"), 0);
+ class_addmethod(mp3amp_class, (t_method)mp3amp_dsp, gensym("dsp"), 0);
+ class_addmethod(mp3amp_class, (t_method)mp3amp_connect, gensym("connect"), A_SYMBOL, A_SYMBOL, A_FLOAT, 0);
+ class_addmethod(mp3amp_class, (t_method)mp3amp_connect_url, gensym("connecturl"), A_SYMBOL, 0);
+ class_addmethod(mp3amp_class, (t_method)mp3amp_standby, gensym("standby"), A_DEFFLOAT, 0);
+ class_addmethod(mp3amp_class, (t_method)mp3amp_disconnect, gensym("disconnect"), 0);
+}
|