diff options
Diffstat (limited to 'mp3cast~/mp3cast~.c')
| -rw-r--r-- | mp3cast~/mp3cast~.c | 916 |
1 files changed, 916 insertions, 0 deletions
diff --git a/mp3cast~/mp3cast~.c b/mp3cast~/mp3cast~.c new file mode 100644 index 0000000..5c881c3 --- /dev/null +++ b/mp3cast~/mp3cast~.c @@ -0,0 +1,916 @@ +/* ------------------------ mp3cast~ ---------------------------------------- */
+/* */
+/* Tilde object to send mp3-stream to shoutcast/icecast server. */
+/* Written by Olaf Matthes (olaf.matthes@gmx.de). */
+/* Get source at http://www.akustische-kunst.de/puredata/ */
+/* */
+/* 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. */
+/* */
+/* See file LICENSE for further informations on licensing terms. */
+/* */
+/* 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., 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 (lame_enc.dll) which can */
+/* be found at http://www.cdex.n3.net. */
+/* */
+/* ---------------------------------------------------------------------------- */
+
+
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+#include "m_pd.h" /* standard pd stuff */
+
+#include <sys/types.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <malloc.h>
+#include <ctype.h>
+#ifdef UNIX
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <time.h>
+#include <sys/time.h>
+#include <lame/lame.h> /* lame encoder stuff */
+#include "mpg123.h"
+#define SOCKET_ERROR -1
+#else
+#include <io.h>
+#include <windows.h>
+#include <winsock.h>
+#include <windef.h>
+#include "lame_enc.h" /* lame encoder stuff */
+#endif
+
+
+#define MY_MP3_MALLOC_IN_SIZE 65536
+ /* max size taken from lame readme */
+#define MY_MP3_MALLOC_OUT_SIZE 1.25*MY_MP3_MALLOC_IN_SIZE+7200
+
+#define MAXDATARATE 320 /* maximum mp3 data rate is 320kbit/s */
+#define STRBUF_SIZE 32
+
+static char *mp3cast_version = "mp3cast~: mp3 streamer version 0.3, written by Yves Degoyon";
+
+#ifndef UNIX
+static HINSTANCE dll = NULL;
+static BEINITSTREAM initStream = NULL;
+static BEENCODECHUNK encodeChunk = NULL;
+static BEDEINITSTREAM deinitStream = NULL;
+static BECLOSESTREAM closeStream = NULL;
+static BEVERSION dllVersion = NULL;
+static BEWRITEVBRHEADER writeVBRHeader = NULL;
+#endif
+
+static t_class *mp3cast_class;
+
+typedef struct _mp3cast
+{
+ t_object x_obj;
+
+ /* LAME stuff */
+ int x_lame; /* info about encoder status */
+ int x_lamechunk; /* chunk size for LAME encoder */
+ int x_mp3size; /* number of returned mp3 samples */
+
+ /* buffer stuff */
+ unsigned short x_inp; /* in position for buffer */
+ unsigned short x_outp; /* out position for buffer*/
+ short *x_mp3inbuf; /* data to be sent to LAME */
+ char *x_mp3outbuf; /* data returned by LAME -> our mp3 stream */
+ short *x_buffer; /* data to be buffered */
+ int x_bytesbuffered; /* number of unprocessed bytes in buffer */
+ int x_start;
+
+ /* mp3 format stuff */
+ int x_samplerate;
+ int x_bitrate; /* bitrate of mp3 stream */
+ int x_mp3mode; /* mode (mono, joint stereo, stereo, dual mono) */
+ int x_mp3quality; /* quality of encoding */
+
+ /* SHOUTcast server stuff */
+ int x_fd; /* info about connection status */
+ char* x_passwd; /* password for server */
+ int x_icecast; /* tells if we use a IceCast server or SHOUTcast */
+ /* special IceCast server stuff */
+ char* x_mountpoint;
+ char* x_name;
+
+ t_float x_f; /* float needed for signal input */
+
+#ifdef UNIX
+ lame_global_flags *lgfp; /* lame encoder configuration */
+#endif
+
+} t_mp3cast;
+
+
+ /* encode PCM data to mp3 stream */
+static void mp3cast_encode(t_mp3cast *x)
+{
+ unsigned short i, wp;
+ int err = -1;
+ int n = x->x_lamechunk;
+
+#ifdef UNIX
+ if(x->x_lamechunk < (int)sizeof(x->x_mp3inbuf))
+#else
+ if(x->x_lamechunk < sizeof(x->x_mp3inbuf))
+#endif
+ {
+ error("not enough memory!");
+ return;
+ }
+
+ /* on start/reconnect set outpoint that it not interferes with inpoint */
+ if(x->x_start == -1)
+ {
+ post("mp3cast~: initialising buffers");
+ /* we try to keep 2.5 times the data the encoder needs in the buffer */
+ if(x->x_inp > (2 * x->x_lamechunk))
+ {
+ x->x_outp = (short) x->x_inp - (2.5 * x->x_lamechunk);
+ }
+ else if(x->x_inp < (2 * x->x_lamechunk))
+ {
+ x->x_outp = (short) MY_MP3_MALLOC_IN_SIZE - (2.5 * x->x_lamechunk);
+ }
+ x->x_start = 1;
+ }
+ if((unsigned short)(x->x_outp - x->x_inp) < x->x_lamechunk)error("mp3cast~: buffers overlap!");
+
+ i = MY_MP3_MALLOC_IN_SIZE - x->x_outp;
+
+ /* read from buffer */
+ if(x->x_lamechunk <= i)
+ {
+ /* enough data until end of buffer */
+ for(n = 0; n < x->x_lamechunk; n++) /* fill encode buffer */
+ {
+ x->x_mp3inbuf[n] = x->x_buffer[n + x->x_outp];
+ }
+ x->x_outp += x->x_lamechunk;
+ }
+ else /* split data */
+ {
+ for(wp = 0; wp < i; wp++) /* data at end of buffer */
+ {
+ x->x_mp3inbuf[wp] = x->x_buffer[wp + x->x_outp];
+ }
+
+ for(wp = i; wp < x->x_lamechunk; wp++) /* write rest of data at beginning of buffer */
+ {
+ x->x_mp3inbuf[wp] = x->x_buffer[wp - i];
+ }
+ x->x_outp = x->x_lamechunk - i;
+ }
+
+ /* encode mp3 data */
+#ifndef UNIX
+ err = encodeChunk(x->x_lame, x->x_lamechunk, x->x_mp3inbuf, x->x_mp3outbuf, &x->x_mp3size);
+#else
+ x->x_mp3size = lame_encode_buffer_interleaved(x->lgfp, x->x_mp3inbuf,
+ x->x_lamechunk/lame_get_num_channels(x->lgfp),
+ x->x_mp3outbuf, MY_MP3_MALLOC_OUT_SIZE);
+ // post( "mp3cast~ : encoding returned %d frames", x->x_mp3size );
+#endif
+
+ /* check result */
+#ifndef UNIX
+ if(err != BE_ERR_SUCCESSFUL)
+ {
+ closeStream(x->x_lame);
+ error("mp3cast~: lameEncodeChunk() failed (%lu)", err);
+#else
+ if(x->x_mp3size<0)
+ {
+ lame_close( x->lgfp );
+ error("mp3cast~: lame_encode_buffer_interleaved failed (%d)", x->x_mp3size);
+#endif
+ x->x_lame = -1;
+ }
+}
+
+
+ /* stream mp3 to SHOUTcast server */
+static void mp3cast_stream(t_mp3cast *x)
+{
+ int err = -1, i; /* error return code */
+ struct frame hframe;
+
+ err = send(x->x_fd, x->x_mp3outbuf, x->x_mp3size, 0);
+ if(err < 0)
+ {
+ error("mp3cast~: could not send encoded data to server (%d)", err);
+#ifndef UNIX
+ closeStream(x->x_lame);
+#else
+ lame_close( x->lgfp );
+#endif
+ x->x_lame = -1;
+#ifndef UNIX
+ closesocket(x->x_fd);
+#else
+ close(x->x_fd);
+#endif
+ x->x_fd = -1;
+ outlet_float(x->x_obj.ob_outlet, 0);
+ }
+ if((err > 0)&&(err != x->x_mp3size))error("mp3cast~: %d bytes skipped", x->x_mp3size - err);
+}
+
+
+ /* buffer data as channel interleaved PCM */
+static t_int *mp3cast_perform(t_int *w)
+{
+ t_float *in1 = (t_float *)(w[1]); /* left audio inlet */
+ t_float *in2 = (t_float *)(w[2]); /* right audio inlet */
+ t_mp3cast *x = (t_mp3cast *)(w[3]);
+ int n = (int)(w[4]); /* number of samples */
+ unsigned short i,wp;
+ float in;
+
+ /* copy the data into the buffer */
+ i = MY_MP3_MALLOC_IN_SIZE - x->x_inp; /* space left at the end of buffer */
+
+ n *= 2; /* two channels go into one buffer */
+
+ if( n <= i )
+ {
+ /* the place between inp and MY_MP3_MALLOC_IN_SIZE */
+ /* is big enough to hold the data */
+
+ for(wp = 0; wp < n; wp++)
+ {
+ if(wp%2)
+ {
+ in = *(in2++); /* right channel / inlet */
+ }
+ else
+ {
+ in = *(in1++); /* left channel / inlet */
+ }
+ if (in > 1.0) { in = 1.0; }
+ if (in < -1.0) { in = -1.0; }
+ x->x_buffer[wp + x->x_inp] = (short) (32767.0 * in);
+ }
+ x->x_inp += n; /* n more samples written to buffer */
+ }
+ else
+ {
+ /* the place between inp and MY_MP3_MALLOC_IN_SIZE is not */
+ /* big enough to hold the data */
+ /* writing will take place in two turns, one from */
+ /* x->x_inp -> MY_MP3_MALLOC_IN_SIZE, then from 0 on */
+
+ for(wp = 0; wp < i; wp++) /* fill up to end of buffer */
+ {
+ if(wp%2)
+ {
+ in = *(in2++);
+ }
+ else
+ {
+ in = *(in1++);
+ }
+ if (in > 1.0) { in = 1.0; }
+ if (in < -1.0) { in = -1.0; }
+ x->x_buffer[wp + x->x_inp] = (short) (32767.0 * in);
+ }
+ for(wp = i; wp < n; wp++) /* write rest at start of buffer */
+ {
+ if(wp%2)
+ {
+ in = *(in2++);
+ }
+ else
+ {
+ in = *(in1++);
+ }
+ if (in > 1.0) { in = 1.0; }
+ if (in < -1.0) { in = -1.0; }
+ x->x_buffer[wp - i] = (short) (32767.0 * in);
+ }
+ x->x_inp = n - i; /* new writeposition in buffer */
+ }
+
+ if((x->x_fd >= 0)&&(x->x_lame >= 0))
+ {
+ /* count buffered samples when things are running */
+ x->x_bytesbuffered += n;
+
+ /* encode and send to server */
+ if(x->x_bytesbuffered > x->x_lamechunk)
+ {
+ mp3cast_encode(x); /* encode to mp3 */
+ mp3cast_stream(x); /* stream mp3 to server */
+ x->x_bytesbuffered -= x->x_lamechunk;
+ }
+ }
+ else
+ {
+ x->x_start = -1;
+ }
+ return (w+5);
+}
+
+static void mp3cast_dsp(t_mp3cast *x, t_signal **sp)
+{
+ dsp_add(mp3cast_perform, 4, sp[0]->s_vec, sp[1]->s_vec, x, sp[0]->s_n);
+}
+
+ /* initialize the lame library */
+static void mp3cast_tilde_lame_init(t_mp3cast *x)
+{
+#ifndef UNIX
+ /* encoder related stuff (calculating buffer size) */
+ BE_VERSION lameVersion = {0,}; /* version number of LAME */
+ BE_CONFIG lameConfig = {0,}; /* config structure of LAME */
+ unsigned int ret;
+#else
+ int ret;
+ x->lgfp = lame_init(); /* set default parameters for now */
+#endif
+
+#ifndef UNIX
+ /* load lame_enc.dll library */
+
+ dll=LoadLibrary("lame_enc.dll");
+ if(dll==NULL)
+ {
+ error("mp3cast~: error loading lame_enc.dll");
+ closesocket(x->x_fd);
+ x->x_fd = -1;
+ outlet_float(x->x_obj.ob_outlet, 0);
+ post("mp3cast~: connection closed");
+ return;
+ }
+
+ /* get Interface functions */
+ initStream = (BEINITSTREAM) GetProcAddress(dll, TEXT_BEINITSTREAM);
+ encodeChunk = (BEENCODECHUNK) GetProcAddress(dll, TEXT_BEENCODECHUNK);
+ deinitStream = (BEDEINITSTREAM) GetProcAddress(dll, TEXT_BEDEINITSTREAM);
+ closeStream = (BECLOSESTREAM) GetProcAddress(dll, TEXT_BECLOSESTREAM);
+ dllVersion = (BEVERSION) GetProcAddress(dll, TEXT_BEVERSION);
+ writeVBRHeader = (BEWRITEVBRHEADER) GetProcAddress(dll,TEXT_BEWRITEVBRHEADER);
+
+ /* check if all interfaces are present */
+ if(!initStream || !encodeChunk || !deinitStream || !closeStream || !dllVersion || !writeVBRHeader)
+ {
+
+ error("mp3cast~: unable to get LAME interfaces");
+ closesocket(x->x_fd);
+ x->x_fd = -1;
+ outlet_float(x->x_obj.ob_outlet, 0);
+ post("mp3cast~: connection closed");
+ return;
+ }
+
+ /* get LAME version number */
+ dllVersion(&lameVersion);
+
+ post( "mp3cast~: lame_enc.dll version %u.%02u (%u/%u/%u)\n"
+ " lame_enc engine %u.%02u",
+ lameVersion.byDLLMajorVersion, lameVersion.byDLLMinorVersion,
+ lameVersion.byDay, lameVersion.byMonth, lameVersion.wYear,
+ lameVersion.byMajorVersion, lameVersion.byMinorVersion);
+
+ memset(&lameConfig,0,sizeof(lameConfig)); /* clear all fields */
+#else
+ {
+ const char *lameVersion = get_lame_version();
+ post( "mp3cast~ : using lame version : %s", lameVersion );
+ }
+#endif
+
+#ifndef UNIX
+
+ /* use the LAME config structure */
+ lameConfig.dwConfig = BE_CONFIG_LAME;
+
+ /* set the mpeg format flags */
+ lameConfig.format.LHV1.dwStructVersion = 1;
+ lameConfig.format.LHV1.dwStructSize = sizeof(lameConfig);
+ lameConfig.format.LHV1.dwSampleRate = (int)sys_getsr(); /* input frequency - pd's sample rate */
+ lameConfig.format.LHV1.dwReSampleRate = x->x_samplerate; /* output s/r - resample if necessary */
+ lameConfig.format.LHV1.nMode = x->x_mp3mode; /* output mode */
+ lameConfig.format.LHV1.dwBitrate = x->x_bitrate; /* mp3 bitrate */
+ lameConfig.format.LHV1.nPreset = x->x_mp3quality; /* mp3 encoding quality */
+ lameConfig.format.LHV1.dwMpegVersion = MPEG1; /* use MPEG1 */
+ lameConfig.format.LHV1.dwPsyModel = 0; /* USE DEFAULT PSYCHOACOUSTIC MODEL */
+ lameConfig.format.LHV1.dwEmphasis = 0; /* NO EMPHASIS TURNED ON */
+ lameConfig.format.LHV1.bOriginal = TRUE; /* SET ORIGINAL FLAG */
+ lameConfig.format.LHV1.bCopyright = TRUE; /* SET COPYRIGHT FLAG */
+ lameConfig.format.LHV1.bNoRes = TRUE; /* no bit resorvoir */
+
+ /* init the MP3 stream */
+ ret = initStream(&lameConfig, &x->x_lamechunk, &x->x_mp3size, &x->x_lame);
+
+ /* check result */
+ if(ret != BE_ERR_SUCCESSFUL)
+ {
+ post("mp3cast~: error opening encoding stream (%lu)", ret);
+ return;
+ }
+
+#else
+ /* setting lame parameters */
+ lame_set_num_channels( x->lgfp, 2);
+ lame_set_in_samplerate( x->lgfp, sys_getsr() );
+ lame_set_out_samplerate( x->lgfp, x->x_samplerate );
+ lame_set_brate( x->lgfp, x->x_bitrate );
+ lame_set_mode( x->lgfp, x->x_mp3mode );
+ lame_set_quality( x->lgfp, x->x_mp3quality );
+ lame_set_emphasis( x->lgfp, 1 );
+ lame_set_original( x->lgfp, 1 );
+ lame_set_copyright( x->lgfp, 1 ); /* viva free music societies !!! */
+ lame_set_disable_reservoir( x->lgfp, 0 );
+ lame_set_padding_type( x->lgfp, PAD_NO );
+ ret = lame_init_params( x->lgfp );
+ if ( ret<0 ) {
+ post( "mp3cast~ : error : lame params initialization returned : %d", ret );
+ } else {
+ x->x_lame=1;
+ /* magic formula copied from windows dll for MPEG-I */
+ x->x_lamechunk = 2*1152;
+
+ post( "mp3cast~ : lame initialization done. (%d)", x->x_lame );
+ }
+ lame_init_bitstream( x->lgfp );
+#endif
+
+
+}
+
+ /* connect to SHOUTcast server */
+static void mp3cast_connect(t_mp3cast *x, t_symbol *hostname, t_floatarg fportno)
+{
+ struct sockaddr_in server;
+ struct hostent *hp;
+ int portno = fportno; /* get port from message box */
+
+ /* information about this broadcast to be send to the server */
+ const char *name = x->x_name; /* name of broadcast */
+ const char *url = "http://guess.where.i.am"; /* url of broadcast */
+ const char *genre = "abstract break"; /* genre of broadcast */
+ const char *aim = "N/A"; /* aim of broadcast */
+ const char *irc = "#mp3cast"; /* ??? what's this ??? */
+ const char *icq = ""; /* icq id of broadcaster */
+ const char *mountpoint = x->x_mountpoint; /* mountpoint for IceCast server */
+ int isPublic = 0; /* don't publish broadcast on www.shoutcast.com */
+
+ /* variables used for communication with server */
+ const char * buf = 0;
+ char resp[STRBUF_SIZE];
+ unsigned int len;
+ fd_set fdset;
+ struct timeval tv;
+ int sockfd;
+
+#ifndef UNIX
+ unsigned int ret;
+#else
+ int ret;
+#endif
+
+ if(x->x_icecast == 0)portno++; /* use SHOUTcast, portno is one higher */
+
+ if (x->x_fd >= 0)
+ {
+ error("mp3cast~: already connected");
+ return;
+ }
+
+ sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (sockfd < 0)
+ {
+ error("mp3cast~: internal error while attempting to open socket");
+ return;
+ }
+
+ /* connect socket using hostname provided in command line */
+ server.sin_family = AF_INET;
+ hp = gethostbyname(hostname->s_name);
+ if (hp == 0)
+ {
+ post("mp3cast~: bad host?");
+#ifndef UNIX
+ closesocket(sockfd);
+#else
+ close(sockfd);
+#endif
+ return;
+ }
+ 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("mp3cast~: connecting to port %d", portno);
+ if (connect(sockfd, (struct sockaddr *) &server, sizeof (server)) < 0)
+ {
+ error("mp3cast~: connection failed!\n");
+#ifndef UNIX
+ closesocket(sockfd);
+#else
+ close(sockfd);
+#endif
+ return;
+ }
+
+ /* 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("mp3cast~: can not read from socket");
+#ifndef UNIX
+ closesocket(sockfd);
+#else
+ close(sockfd);
+#endif
+ return;
+ }
+ ret = select(sockfd + 1, NULL, &fdset, NULL, &tv);
+ if(ret < 0)
+ {
+ error("mp3cast~: can not write to socket");
+#ifndef UNIX
+ closesocket(sockfd);
+#else
+ close(sockfd);
+#endif
+ return;
+ }
+
+ if(x->x_icecast == 0) /* SHOUTCAST */
+ {
+ /* now try to log in at SHOUTcast server */
+ post("mp3cast~: logging in to SHOUTcast server...");
+
+ /* first line is the passwd */
+ buf = x->x_passwd;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\n";
+ send(sockfd, buf, strlen(buf), 0);
+
+ /* header for SHOUTcast server */
+ buf = "icy-name:"; /* name of broadcast */
+ send(sockfd, buf, strlen(buf), 0);
+ buf = name;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\nicy-url:"; /* URL of broadcast */
+ send(sockfd, buf, strlen(buf), 0);
+ buf = url;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\nicy-genre:"; /* genre of broadcast */
+ send(sockfd, buf, strlen(buf), 0);
+ buf = genre;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\nicy-irc:";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = irc;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\nicy-aim:";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = aim;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\nicy-icq:";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = icq;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\nicy-br:";
+ send(sockfd, buf, strlen(buf), 0);
+ if(sprintf(resp, "%d", x->x_bitrate) == -1) /* convert int to a string */
+ {
+ error("mp3cast~: wrong bitrate");
+ }
+ send(sockfd, resp, strlen(resp), 0);
+ buf = "\nicy-pub:";
+ send(sockfd, buf, strlen(buf), 0);
+ if(isPublic==0) /* set the public flag for broadcast */
+ {
+ buf = "no";
+ }
+ else
+ {
+ buf ="yes";
+ }
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "\n\n";
+ send(sockfd, buf, strlen(buf), 0);
+ }
+ else /* IceCast */
+ {
+ /* now try to log in at IceCast server */
+ post("mp3cast~: logging in to IceCast server...");
+
+ /* send the request, a string like:
+ * "SOURCE <password> /<mountpoint>\n" */
+ buf = "SOURCE ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = x->x_passwd;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = " /";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = mountpoint;
+ send(sockfd, buf, strlen(buf), 0);
+
+ /* send the x-audiocast headers */
+ buf = "\nx-audiocast-bitrate: ";
+ send(sockfd, buf, strlen(buf), 0);
+ if(sprintf(resp, "%d", x->x_bitrate) == -1) /* convert int to a string */
+ {
+ error("mp3cast~: wrong bitrate");
+ }
+ send(sockfd, resp, strlen(resp), 0);
+
+ buf = "\nx-audiocast-public: ";
+ send(sockfd, buf, strlen(buf), 0);
+ if(isPublic==0) /* set the public flag for broadcast */
+ {
+ buf = "no";
+ }
+ else
+ {
+ buf ="yes";
+ }
+ send(sockfd, buf, strlen(buf), 0);
+
+ buf = "\nx-audiocast-name: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = name;
+ send(sockfd, buf, strlen(buf), 0);
+
+ buf = "\nx-audiocast-url: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = url;
+ send(sockfd, buf, strlen(buf), 0);
+
+ buf = "\nx-audiocast-genre: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = genre;
+ send(sockfd, buf, strlen(buf), 0);
+
+ buf = "\n\n";
+ send(sockfd, buf, strlen(buf), 0);
+ /* end login for IceCast */
+ }
+
+ /* read the anticipated response: "OK" */
+ len = recv(sockfd, resp, STRBUF_SIZE, 0);
+ if ( len < 2 || resp[0] != 'O' || resp[1] != 'K' )
+ {
+ post("mp3cast~: login failed!");
+#ifndef UNIX
+ closesocket(sockfd);
+#else
+ close(sockfd);
+#endif
+ return;
+ }
+
+ /* suck anything that the other side has to say */
+ // while (len = recv(sockfd, resp, STRBUF_SIZE,0))
+ // {
+ ; /* do nothing, just wait ! */
+ // }
+
+ x->x_fd = sockfd;
+ outlet_float(x->x_obj.ob_outlet, 1);
+ post("mp3cast~: logged in to %s", hp->h_name);
+
+ mp3cast_tilde_lame_init(x);
+
+}
+
+ /* close connection to SHOUTcast server */
+static void mp3cast_disconnect(t_mp3cast *x)
+{
+ int err = -1;
+ if(x->x_lame >= 0)
+ {
+#ifndef UNIX
+ /* deinit the stream */
+ err = deinitStream(x->x_lame, x->x_mp3outbuf, &x->x_mp3size);
+
+ /* check result */
+ if(err != BE_ERR_SUCCESSFUL)
+ {
+ error("exiting mp3 stream failed (%lu)", err);
+ }
+ closeStream(x->x_lame); /* close mp3 encoder stream */
+#else
+ /* ignore remaining bytes */
+ if ( x->x_mp3size = lame_encode_flush( x->lgfp, x->x_mp3outbuf, 0) < 0 ) {
+ post( "mp3cast~ : warning : remaining encoded bytes" );
+ }
+ lame_close( x->lgfp );
+#endif
+ x->x_lame = -1;
+ post("mp3cast~: encoder stream closed");
+ }
+
+ if(x->x_fd >= 0) /* close socket */
+ {
+#ifndef UNIX
+ closesocket(x->x_fd);
+#else
+ close(x->x_fd);
+#endif
+ x->x_fd = -1;
+ outlet_float(x->x_obj.ob_outlet, 0);
+ post("mp3cast~: connection closed");
+ }
+}
+
+ /* set password for SHOUTcast server */
+static void mp3cast_password(t_mp3cast *x, t_symbol *password)
+{
+ post("mp3cast~ : setting password to %s", password->s_name );
+ x->x_passwd = password->s_name;
+}
+
+ /* settings for mp3 encoding */
+static void mp3cast_mpeg(t_mp3cast *x, t_floatarg fsamplerate, t_floatarg fbitrate,
+ t_floatarg fmode, t_floatarg fquality)
+{
+ x->x_samplerate = fsamplerate;
+ if(fbitrate > MAXDATARATE)
+ {
+ fbitrate = MAXDATARATE;
+ }
+ x->x_bitrate = fbitrate;
+ x->x_mp3mode = fmode;
+ x->x_mp3quality = fquality;
+ post("mp3cast~: setting mp3 stream to %dHz, %dkbit/s, mode %d, quality %d",
+ x->x_samplerate, x->x_bitrate, x->x_mp3mode, x->x_mp3quality);
+ if(x->x_fd>=0)post("mp3cast~ : reconnect to make changes take effect! ");
+}
+
+ /* print settings */
+static void mp3cast_print(t_mp3cast *x)
+{
+ const char * buf = 0;
+ post(mp3cast_version);
+ post(" LAME mp3 settings:\n"
+ " output sample rate: %d Hz\n"
+ " bitrate: %d kbit/s", x->x_samplerate, x->x_bitrate);
+ switch(x->x_mp3mode)
+ {
+ case 0 :
+ buf = "stereo";
+ break;
+ case 1 :
+ buf = "joint stereo";
+ break;
+ case 2 :
+ buf = "dual channel";
+ break;
+ case 3 :
+ buf = "mono";
+ break;
+ }
+ post(" mode: %s\n"
+ " quality: %d", buf, x->x_mp3quality);
+#ifndef UNIX
+ if(x->x_lamechunk!=0)post(" calculated mp3 chunk size: %d", x->x_lamechunk);
+#else
+ post(" mp3 chunk size: %d", x->x_lamechunk);
+#endif
+ if(x->x_samplerate!=sys_getsr())
+ {
+ post(" resampling from %d to %d Hz!", (int)sys_getsr(), x->x_samplerate);
+ }
+ if(x->x_icecast == 0)
+ {
+ post(" server type is SHOUTcast");
+ }
+ else
+ {
+ post(" server type is IceCast");
+ }
+}
+
+ /* we use iceCast server */
+static void mp3cast_icecast(t_mp3cast *x)
+{
+ x->x_icecast = 1;
+ post("mp3cast~: set server type to IceCast");
+}
+
+ /* we use SHOUTcast server (default) */
+static void mp3cast_shoutcast(t_mp3cast *x)
+{
+ x->x_icecast = 0;
+ post("mp3cast~: set server type to SHOUTcast");
+}
+
+ /* set mountpoint for IceCast server */
+static void mp3cast_mountpoint(t_mp3cast *x, t_symbol *mount)
+{
+ x->x_mountpoint = mount->s_name;
+ post("mp3cast~: mountpoint set to %s", x->x_mountpoint);
+}
+
+ /* set namle for IceCast server */
+static void mp3cast_name(t_mp3cast *x, t_symbol *name)
+{
+ x->x_name = name->s_name;
+ post("mp3cast~: name set to %s", x->x_name);
+}
+
+ /* clean up */
+static void mp3cast_free(t_mp3cast *x)
+{
+ if(x->x_lame >= 0)
+#ifndef UNIX
+ closeStream(x->x_lame);
+#else
+ lame_close( x->lgfp );
+#endif
+ if(x->x_fd >= 0)
+#ifndef UNIX
+ closesocket(x->x_fd);
+#else
+ close(x->x_fd);
+#endif
+ freebytes(x->x_mp3inbuf, MY_MP3_MALLOC_IN_SIZE*sizeof(short));
+ freebytes(x->x_mp3outbuf, MY_MP3_MALLOC_OUT_SIZE);
+ freebytes(x->x_buffer, MY_MP3_MALLOC_IN_SIZE*sizeof(short));
+}
+
+static void *mp3cast_new(void)
+{
+ t_mp3cast *x = (t_mp3cast *)pd_new(mp3cast_class);
+ inlet_new (&x->x_obj, &x->x_obj.ob_pd, gensym ("signal"), gensym ("signal"));
+ outlet_new(&x->x_obj, gensym("float"));
+ x->x_fd = -1;
+ x->x_lame = -1;
+ x->x_passwd = "pd";
+ x->x_samplerate = sys_getsr();
+ x->x_bitrate = 224;
+ x->x_mp3mode = 1;
+ x->x_mp3quality = 5;
+ x->x_mp3inbuf = getbytes(MY_MP3_MALLOC_IN_SIZE*sizeof(short)); /* buffer for encoder input */
+ x->x_mp3outbuf = getbytes(MY_MP3_MALLOC_OUT_SIZE*sizeof(char)); /* our mp3 stream */
+ x->x_buffer = getbytes(MY_MP3_MALLOC_IN_SIZE*sizeof(short)); /* what we get from pd, converted to PCM */
+ if ((!x->x_buffer)||(!x->x_mp3inbuf)||(!x->x_mp3outbuf)) /* check buffers... */
+ {
+ error("out of memory!");
+ }
+ x->x_bytesbuffered = 0;
+ x->x_inp = 0;
+ x->x_outp = 0;
+ x->lgfp = NULL;
+ x->x_start = -1;
+ x->x_icecast = 0;
+ x->x_mountpoint = "puredata";
+ x->x_name = "puredata";
+ return(x);
+}
+
+void mp3cast_tilde_setup(void)
+{
+ post(mp3cast_version);
+ mp3cast_class = class_new(gensym("mp3cast~"), (t_newmethod)mp3cast_new, (t_method)mp3cast_free,
+ sizeof(t_mp3cast), 0, 0);
+ CLASS_MAINSIGNALIN(mp3cast_class, t_mp3cast, x_f );
+ class_sethelpsymbol(mp3cast_class, gensym("help-mp3cast~.pd"));
+ class_addmethod(mp3cast_class, (t_method)mp3cast_dsp, gensym("dsp"), 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_connect, gensym("connect"), A_SYMBOL, A_FLOAT, 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_disconnect, gensym("disconnect"), 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_password, gensym("passwd"), A_SYMBOL, 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_mpeg, gensym("mpeg"), A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_print, gensym("print"), 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_icecast, gensym("icecast"), 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_shoutcast, gensym("shoutcast"), 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_mountpoint, gensym("mountpoint"), A_SYMBOL, 0);
+ class_addmethod(mp3cast_class, (t_method)mp3cast_name, gensym("name"), A_SYMBOL, 0);
+}
+
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