diff options
| author | Guenter Geiger <ggeiger@users.sourceforge.net> | 2002-11-26 10:52:38 +0000 |
|---|---|---|
| committer | Guenter Geiger <ggeiger@users.sourceforge.net> | 2002-11-26 10:52:38 +0000 |
| commit | 39bfab603950686c2b007be44fc75643daacc932 (patch) | |
| tree | fab9e4f4c7fc2e38682eb8b9c0a42d774d4b7f96 /oggcast~ | |
addedsvn2git-root
svn path=/trunk/externals/pdogg/; revision=248
Diffstat (limited to 'oggcast~')
| -rw-r--r-- | oggcast~/HISTORY | 65 | ||||
| -rw-r--r-- | oggcast~/codec.h | 233 | ||||
| -rw-r--r-- | oggcast~/help-oggcast~.pd | 57 | ||||
| -rw-r--r-- | oggcast~/oggcast~.c | 1302 | ||||
| -rw-r--r-- | oggcast~/readme | 116 | ||||
| -rw-r--r-- | oggcast~/vorbisenc.h | 93 |
6 files changed, 1866 insertions, 0 deletions
diff --git a/oggcast~/HISTORY b/oggcast~/HISTORY new file mode 100644 index 0000000..ef27e13 --- /dev/null +++ b/oggcast~/HISTORY @@ -0,0 +1,65 @@ +Version history of oggcast~ external for pure-data
+
+v 0.2g (3rd August 2002):
+- finally fixed the bug that made oggcast~ crash after a
+ while. seems to be realted with output from child thread
+ using t_clocks but couldn't proove that
+
+v 0.2f (20st july 2002):
+- recompiled with the final 1.0 release of Ogg Vorbis
+- changed the URL to the new akustische-kunst.org domain
+
+v 0.2e (5th july 2002):
+- added simple downsampling to stream at lower sample rates
+
+v 0.2d (21st june 2002 - stable release!):
+- cleaned up code a bit
+- now clean disconnect in case server dies or closes
+ socket
+
+v 0.2c (13th june 2002):
+- fixed some small bugs
+- buffer size now in kbytes per channel
+- some more info-printout
+
+v 0.2b (12th june 2002):
+- completetly rewritten multithreaded version, first
+ sort of stable release
+- KNOWN BUG: eats too much CPU power
+
+v 0.1g (23rd feb. 2002, not for public use!):
+- added multithreading functionality: now sending data
+ to server in a second thread
+- now included the static ogg vorbis libraries - no dll's
+ needed under win any longer
+- fixed a bug that sometimes made pd crash
+
+v 0.1f (11th feb. 2002):
+- converted ringbuffer to simple buffer of fixed size
+
+v 0.1e (10th feb. 2002):
+- now really fixed the bug that made pd die when server
+ disconnected
+
+v 0.1d (9th feb. 2002):
+- fixed a bug in the "vorbis" setting that made on-the-run
+ changes impossible
+- introduced a function to check writeability of the socket
+- fixed the bug that crashed pd due to an access violation
+ in vorbis.dll when send() returned an error (more of a
+ fast workaround)
+- corrected bitrate setting, now it really is _k_bps
+
+
+v 0.1c (9th feb. 2002):
+- added support for setting / changing the comment tags in
+ the ogg/vorbis header, spaces have to be replaced by '='
+- fixed a bug in oggcast_stream() that made Pd crash - now
+ it's vorbis.dll that makes Pd crash... ;-(
+
+v 0.1b (not released):
+- added support for changing encoder settings when stream
+ is running (no need to disconnect), seems to be unstable
+ on linux (with JRoar)
+
+v 0.1: first public release
\ No newline at end of file diff --git a/oggcast~/codec.h b/oggcast~/codec.h new file mode 100644 index 0000000..9365ea3 --- /dev/null +++ b/oggcast~/codec.h @@ -0,0 +1,233 @@ +/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 *
+ * by the XIPHOPHORUS Company http://www.xiph.org/ *
+
+ ********************************************************************
+
+ function: libvorbis codec headers
+ last mod: $Id: codec.h,v 1.1 2002-11-26 10:51:49 ggeiger Exp $
+
+ ********************************************************************/
+
+#ifndef _vorbis_codec_h_
+#define _vorbis_codec_h_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#include <ogg/ogg.h>
+
+typedef struct vorbis_info{
+ int version;
+ int channels;
+ long rate;
+
+ /* The below bitrate declarations are *hints*.
+ Combinations of the three values carry the following implications:
+
+ all three set to the same value:
+ implies a fixed rate bitstream
+ only nominal set:
+ implies a VBR stream that averages the nominal bitrate. No hard
+ upper/lower limit
+ upper and or lower set:
+ implies a VBR bitstream that obeys the bitrate limits. nominal
+ may also be set to give a nominal rate.
+ none set:
+ the coder does not care to speculate.
+ */
+
+ long bitrate_upper;
+ long bitrate_nominal;
+ long bitrate_lower;
+ long bitrate_window;
+
+ void *codec_setup;
+} vorbis_info;
+
+/* vorbis_dsp_state buffers the current vorbis audio
+ analysis/synthesis state. The DSP state belongs to a specific
+ logical bitstream ****************************************************/
+typedef struct vorbis_dsp_state{
+ int analysisp;
+ vorbis_info *vi;
+
+ float **pcm;
+ float **pcmret;
+ int pcm_storage;
+ int pcm_current;
+ int pcm_returned;
+
+ int preextrapolate;
+ int eofflag;
+
+ long lW;
+ long W;
+ long nW;
+ long centerW;
+
+ ogg_int64_t granulepos;
+ ogg_int64_t sequence;
+
+ ogg_int64_t glue_bits;
+ ogg_int64_t time_bits;
+ ogg_int64_t floor_bits;
+ ogg_int64_t res_bits;
+
+ void *backend_state;
+} vorbis_dsp_state;
+
+typedef struct vorbis_block{
+ /* necessary stream state for linking to the framing abstraction */
+ float **pcm; /* this is a pointer into local storage */
+ oggpack_buffer opb;
+
+ long lW;
+ long W;
+ long nW;
+ int pcmend;
+ int mode;
+
+ int eofflag;
+ ogg_int64_t granulepos;
+ ogg_int64_t sequence;
+ vorbis_dsp_state *vd; /* For read-only access of configuration */
+
+ /* local storage to avoid remallocing; it's up to the mapping to
+ structure it */
+ void *localstore;
+ long localtop;
+ long localalloc;
+ long totaluse;
+ struct alloc_chain *reap;
+
+ /* bitmetrics for the frame */
+ long glue_bits;
+ long time_bits;
+ long floor_bits;
+ long res_bits;
+
+ void *internal;
+
+} vorbis_block;
+
+/* vorbis_block is a single block of data to be processed as part of
+the analysis/synthesis stream; it belongs to a specific logical
+bitstream, but is independant from other vorbis_blocks belonging to
+that logical bitstream. *************************************************/
+
+struct alloc_chain{
+ void *ptr;
+ struct alloc_chain *next;
+};
+
+/* vorbis_info contains all the setup information specific to the
+ specific compression/decompression mode in progress (eg,
+ psychoacoustic settings, channel setup, options, codebook
+ etc). vorbis_info and substructures are in backends.h.
+*********************************************************************/
+
+/* the comments are not part of vorbis_info so that vorbis_info can be
+ static storage */
+typedef struct vorbis_comment{
+ /* unlimited user comment fields. libvorbis writes 'libvorbis'
+ whatever vendor is set to in encode */
+ char **user_comments;
+ int *comment_lengths;
+ int comments;
+ char *vendor;
+
+} vorbis_comment;
+
+
+/* libvorbis encodes in two abstraction layers; first we perform DSP
+ and produce a packet (see docs/analysis.txt). The packet is then
+ coded into a framed OggSquish bitstream by the second layer (see
+ docs/framing.txt). Decode is the reverse process; we sync/frame
+ the bitstream and extract individual packets, then decode the
+ packet back into PCM audio.
+
+ The extra framing/packetizing is used in streaming formats, such as
+ files. Over the net (such as with UDP), the framing and
+ packetization aren't necessary as they're provided by the transport
+ and the streaming layer is not used */
+
+/* Vorbis PRIMITIVES: general ***************************************/
+
+extern void vorbis_info_init(vorbis_info *vi);
+extern void vorbis_info_clear(vorbis_info *vi);
+extern int vorbis_info_blocksize(vorbis_info *vi,int zo);
+extern void vorbis_comment_init(vorbis_comment *vc);
+extern void vorbis_comment_add(vorbis_comment *vc, char *comment);
+extern void vorbis_comment_add_tag(vorbis_comment *vc,
+ char *tag, char *contents);
+extern char *vorbis_comment_query(vorbis_comment *vc, char *tag, int count);
+extern int vorbis_comment_query_count(vorbis_comment *vc, char *tag);
+extern void vorbis_comment_clear(vorbis_comment *vc);
+
+extern int vorbis_block_init(vorbis_dsp_state *v, vorbis_block *vb);
+extern int vorbis_block_clear(vorbis_block *vb);
+extern void vorbis_dsp_clear(vorbis_dsp_state *v);
+
+/* Vorbis PRIMITIVES: analysis/DSP layer ****************************/
+
+extern int vorbis_analysis_init(vorbis_dsp_state *v,vorbis_info *vi);
+extern int vorbis_commentheader_out(vorbis_comment *vc, ogg_packet *op);
+extern int vorbis_analysis_headerout(vorbis_dsp_state *v,
+ vorbis_comment *vc,
+ ogg_packet *op,
+ ogg_packet *op_comm,
+ ogg_packet *op_code);
+extern float **vorbis_analysis_buffer(vorbis_dsp_state *v,int vals);
+extern int vorbis_analysis_wrote(vorbis_dsp_state *v,int vals);
+extern int vorbis_analysis_blockout(vorbis_dsp_state *v,vorbis_block *vb);
+extern int vorbis_analysis(vorbis_block *vb,ogg_packet *op);
+
+extern int vorbis_bitrate_addblock(vorbis_block *vb);
+extern int vorbis_bitrate_flushpacket(vorbis_dsp_state *vd,
+ ogg_packet *op);
+
+/* Vorbis PRIMITIVES: synthesis layer *******************************/
+extern int vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,
+ ogg_packet *op);
+
+extern int vorbis_synthesis_init(vorbis_dsp_state *v,vorbis_info *vi);
+extern int vorbis_synthesis(vorbis_block *vb,ogg_packet *op);
+extern int vorbis_synthesis_trackonly(vorbis_block *vb,ogg_packet *op);
+extern int vorbis_synthesis_blockin(vorbis_dsp_state *v,vorbis_block *vb);
+extern int vorbis_synthesis_pcmout(vorbis_dsp_state *v,float ***pcm);
+extern int vorbis_synthesis_read(vorbis_dsp_state *v,int samples);
+extern long vorbis_packet_blocksize(vorbis_info *vi,ogg_packet *op);
+
+/* Vorbis ERRORS and return codes ***********************************/
+
+#define OV_FALSE -1
+#define OV_EOF -2
+#define OV_HOLE -3
+
+#define OV_EREAD -128
+#define OV_EFAULT -129
+#define OV_EIMPL -130
+#define OV_EINVAL -131
+#define OV_ENOTVORBIS -132
+#define OV_EBADHEADER -133
+#define OV_EVERSION -134
+#define OV_ENOTAUDIO -135
+#define OV_EBADPACKET -136
+#define OV_EBADLINK -137
+#define OV_ENOSEEK -138
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
+
diff --git a/oggcast~/help-oggcast~.pd b/oggcast~/help-oggcast~.pd new file mode 100644 index 0000000..6b45d35 --- /dev/null +++ b/oggcast~/help-oggcast~.pd @@ -0,0 +1,57 @@ +#N canvas 256 31 609 501 10;
+#X floatatom 18 36 0 40 16000;
+#X msg 467 454 \; pd dsp 1;
+#X floatatom 18 470 0 0 0;
+#X msg 171 152 disconnect;
+#X msg 207 283 print;
+#X msg 533 454 \; pd dsp 0;
+#X obj 467 428 loadbang;
+#X floatatom 96 448 10 0 0;
+#X text 120 80 connect <host> <mountpoint> <port>;
+#X text 272 45 get latest version at;
+#X text 274 59 http://www.akustische-kunst.de/puredata/;
+#X text 188 178 vorbis <samplerate> <channles> <max.br> <nom.br> <min.br>
+;
+#X text 167 448 ogg pages;
+#X text 47 473 connection state;
+#X text 372 249 channels: 1 or 2 (default);
+#X text 203 214 vbr <samplerate> <channels> <quality>;
+#X msg 100 57 passwd letmein;
+#X obj 18 63 osc~ 440;
+#X text 323 236 quality settings: 0 - 1 (low - hi);
+#X text 324 265 resampling currently not supported!;
+#X text 216 345 possible tags: TITLE \, ARTIST \, PERFORMER \, DESCRIPTION
+\,;
+#X text 305 358 GENRE \, LOCATION \, COPYRIGHT \, CONTACT \, DATE;
+#X msg 188 195 vorbis 44100 2 144 128 96;
+#X msg 152 120 connect 141.53.196.149 puredata.ogg 8000;
+#X msg 122 98 connect localhost puredata.ogg 8000;
+#X msg 202 230 vbr 44100 2 0.4;
+#X obj 17 421 oggcast~ 2 512;
+#X text 19 6 oggcast~ 0.2b - send Ogg Vorbis stream to IceCast2 or
+JRoar;
+#X text 273 34 written by Olaf Matthes <olaf.matthes@gmx.de>;
+#X text 246 284 print current settings to console window;
+#X text 214 306 comment: <TAG> <content>;
+#X msg 214 323 ARTIST your_name;
+#X text 118 421 creation arguments: oggcast~ <channles> <buffer size>
+;
+#X text 239 439 default is 2 channels and 512k;
+#X text 240 451 bytes buffer size;
+#X text 217 376 '_' (underline) or '=' (equal sign) will get replaced
+with spaces! Note that changing any settings while streaming might
+result in audible dropouts!;
+#X connect 0 0 17 0;
+#X connect 3 0 26 0;
+#X connect 4 0 26 0;
+#X connect 6 0 1 0;
+#X connect 16 0 26 0;
+#X connect 17 0 26 0;
+#X connect 17 0 26 1;
+#X connect 22 0 26 0;
+#X connect 23 0 26 0;
+#X connect 24 0 26 0;
+#X connect 25 0 26 0;
+#X connect 26 0 2 0;
+#X connect 26 1 7 0;
+#X connect 31 0 26 0;
diff --git a/oggcast~/oggcast~.c b/oggcast~/oggcast~.c new file mode 100644 index 0000000..67ea43a --- /dev/null +++ b/oggcast~/oggcast~.c @@ -0,0 +1,1302 @@ +/* ------------------------- oggcast~ ----------------------------------------- */
+/* */
+/* Tilde object to send an Ogg Vorbis stream from to IceCast2 server. */
+/* Written by Olaf Matthes (olaf.matthes@gmx.de) */
+/* Get source at http://www.akustische-kunst.org/puredata/pdogg/ */
+/* */
+/* 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 Ogg Vorbis decoding library which can be found at */
+/* http://www.vorbis.com/ */
+/* */
+/* ---------------------------------------------------------------------------- */
+
+ /* Pd includes */
+#include "m_pd.h"
+#include "g_canvas.h"
+ /* Vorbis includes */
+#include "codec.h"
+#include "vorbisenc.h"
+
+#include <sys/types.h>
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#ifdef UNIX
+#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>
+#define SOCKET_ERROR -1
+#else
+#include <io.h> /* for 'write' in pute-function only */
+#include <winsock.h>
+#include <winbase.h>
+#endif
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+#ifdef UNIX
+#define sys_closesocket close
+#endif
+#ifdef NT
+#define sys_closesocket closesocket
+#endif
+
+/************************* oggcast~ object ******************************/
+
+/* Each instance of oggcast~ owns a "child" thread for doing the data
+transfer. The parent thread signals the child each time:
+ (1) a connection wants opening or closing;
+ (2) we've eaten another 1/16 of the shared buffer (so that the
+ child thread should check if it's time to receive some more.)
+The child signals the parent whenever a receive has completed. Signalling
+is done by setting "conditions" and putting data in mutex-controlled common
+areas.
+*/
+
+
+#define REQUEST_NOTHING 0
+#define REQUEST_CONNECT 1
+#define REQUEST_CLOSE 2
+#define REQUEST_QUIT 3
+#define REQUEST_BUSY 4
+#define REQUEST_DATA 5
+#define REQUEST_REINIT 6
+
+#define STATE_IDLE 0
+#define STATE_STARTUP 1 /* connecting and filling the buffer */
+#define STATE_STREAM 2 /* streaming aund audio output */
+
+#define READ 4096 /* amount of data we pass on to encoder */
+#define DEFBUFPERCHAN 262144 /* audio output buffer by default: 256k */
+#define MINBUFSIZE 65536
+#define MAXBUFSIZE 16777216 /* arbitrary; just don't want to hang malloc */
+#define STRBUF_SIZE 1024 /* char received from server on startup */
+#define MAXSTREAMCHANS 2 /* maximum number of channels: restricted to 2 by Ogg specs */
+#define UPDATE_INTERVAL 250 /* time in milliseconds between updates of output values */
+
+static char *oggcast_version = "oggcast~: ogg/vorbis streaming client version 0.2g, written by Olaf Matthes";
+
+static t_class *oggcast_class;
+
+typedef struct _oggcast
+{
+ t_object x_obj;
+ t_float *x_f;
+ t_clock *x_clock_connect;
+ t_clock *x_clock_pages;
+ t_outlet *x_connection; /* outlet for connection state */
+ t_outlet *x_outpages; /* outlet for no. of ogg pages */
+
+ t_float *x_buf; /* audio data buffer */
+ t_int x_bufsize; /* buffer size in bytes */
+ t_int x_ninlets; /* number of audio outlets */
+ t_sample *(x_outvec[MAXSTREAMCHANS]); /* audio vectors */
+ t_int x_vecsize; /* vector size for transfers */
+ t_int x_state; /* opened, running, or idle */
+
+ /* parameters to communicate with subthread */
+ t_int x_requestcode; /* pending request from parent to I/O thread */
+ t_int x_connecterror; /* slot for "errno" return */
+
+ /* buffer stuff */
+ t_int x_fifosize; /* buffer size appropriately rounded down */
+ t_int x_fifohead; /* index of next byte to get from file */
+ t_int x_fifotail; /* index of next byte the ugen will read */
+ t_int x_sigcountdown; /* counter for signalling child for more data */
+ t_int x_sigperiod; /* number of ticks per signal */
+ t_int x_siginterval; /* number of times per buffer (depends on data rate) */
+
+ /* ogg/vorbis related stuff */
+ ogg_stream_state x_os; /* take physical pages, weld into a logical stream of packets */
+ ogg_page x_og; /* one Ogg bitstream page. Vorbis packets are inside */
+ ogg_packet x_op; /* one raw packet of data for decode */
+ vorbis_info x_vi; /* struct that stores all the static vorbis bitstream settings */
+ vorbis_comment x_vc; /* struct that stores all the user comments */
+ vorbis_dsp_state x_vd; /* central working state for the packet->PCM decoder */
+ vorbis_block x_vb; /* local working space for packet->PCM decode */
+
+ t_int x_eos; /* end of stream */
+ t_float x_pages; /* number of pages that have been output to server */
+ t_float x_lastpages;
+
+ /* ringbuffer stuff */
+ t_float *x_buffer; /* data to be buffered (ringbuffer)*/
+ t_int x_bytesbuffered; /* number of unprocessed bytes in buffer */
+
+ /* ogg/vorbis format stuff */
+ t_int x_samplerate; /* samplerate of stream (default = getsr() ) */
+ t_int x_skip; /* samples from input to skip (for resampling) */
+ t_float x_quality; /* desired quality level from 0.0 to 1.0 (lo to hi) */
+ t_int x_br_max; /* max. bitrate of ogg/vorbis stream */
+ t_int x_br_nom; /* nom. bitrate of ogg/vorbis stream */
+ t_int x_br_min; /* min. bitrate of ogg/vorbis stream */
+ t_int x_channels; /* number of channels (1 or 2) */
+ t_int x_vbr;
+
+ /* IceCast server stuff */
+ char* x_passwd; /* password for server */
+ char* x_bcname; /* name of broadcast */
+ char* x_bcurl; /* url of broadcast */
+ char* x_bcgenre; /* genre of broadcast */
+ char* x_bcdescription; /* description */
+ char* x_bcartist; /* artist */
+ char* x_bclocation;
+ char* x_bccopyright;
+ char* x_bcperformer;
+ char* x_bccontact;
+ char* x_bcdate; /* system date when broadcast started */
+ char* x_hostname; /* name or IP of host to connect to */
+ char* x_mountpoint; /* mountpoint for IceCast server */
+ t_float x_port; /* port number on which the connection is made */
+ t_int x_bcpublic; /* do(n't) publish broadcast on www.oggcast.com */
+
+
+
+
+ t_int x_connectstate; /* indicates to state of socket connection */
+ t_int x_outvalue; /* value that has last been output via outlet */
+ t_int x_fd; /* the socket number */
+ t_resample x_resample; /* resampling unit */
+ t_int x_recover; /* indicate how to behave on buffer underruns */
+
+ /* thread stuff */
+ pthread_mutex_t x_mutex;
+ pthread_cond_t x_requestcondition;
+ pthread_cond_t x_answercondition;
+ pthread_t x_childthread;
+} t_oggcast;
+
+ /* check server for writeability */
+static int oggcast_checkserver(t_int sock)
+{
+ fd_set fdset;
+ struct timeval ztout;
+ fd_set writeset;
+ fd_set exceptset;
+
+ FD_ZERO(&writeset);
+ FD_ZERO(&exceptset);
+ FD_SET(sock, &writeset );
+ FD_SET(sock, &exceptset );
+
+ if(select(sock+1, NULL, &writeset, &exceptset, &ztout) > 0)
+ {
+ if(!FD_ISSET(sock, &writeset))
+ {
+ post("oggcast~: can not write data to the server, quitting");
+ return -1;
+ }
+ if(FD_ISSET(sock, &exceptset))
+ {
+ post("oggcast~: socket returned an error, quitting");
+ return -1;
+ }
+ }
+ return 0;
+}
+
+ /* stream ogg/vorbis to IceCast2 server */
+static int oggcast_stream(t_oggcast *x, t_int fd)
+{
+ int err = -1; /* error return code */
+ int pages = 0;
+
+ /* write out pages (if any) */
+ while(!x->x_eos)
+ {
+ int result=ogg_stream_pageout(&(x->x_os),&(x->x_og));
+ if(result==0)break;
+ err = send(fd, x->x_og.header, x->x_og.header_len, 0);
+ if(err < 0)
+ {
+ error("oggcast~: could not send ogg header to server (%d)", err);
+ x->x_eos = 1; /* indicate (artificial) end of stream */
+ return err;
+ }
+ err = send(fd, x->x_og.body, x->x_og.body_len, 0);
+ if(err < 0)
+ {
+ error("oggcast~: could not send ogg body to server (%d)", err);
+ x->x_eos = 1; /* indicate (artificial) end of stream */
+ return err;
+ }
+ pages++; /* count number of pages */
+ /* there might be more than one pages we have to send */
+ if(ogg_page_eos(&(x->x_og)))x->x_eos=1;
+ }
+ return (pages);
+}
+
+ /* ogg/vorbis decoder setup */
+static int oggcast_vorbis_init(t_oggcast *x)
+{
+ int err = -1;
+
+ x->x_eos = 0;
+ x->x_skip = 1; /* assume no resampling */
+ /* choose an encoding mode */
+ vorbis_info_init(&(x->x_vi));
+
+ if(x->x_samplerate != sys_getsr()) /* downsampling for Oliver (http://radiostudio.org) */
+ {
+ if(sys_getsr() / x->x_samplerate == 2.0)
+ {
+ post("oggcast~: downsampling from %.0f to %d Hz", sys_getsr(), x->x_samplerate);
+ x->x_skip = 2;
+ }
+ else if(sys_getsr() / x->x_samplerate == 4.0)
+ {
+ post("oggcast~: downsampling from %.0f to %d Hz", sys_getsr(), x->x_samplerate);
+ x->x_skip = 4;
+ }
+ else if(sys_getsr() / x->x_samplerate == 3.0)
+ {
+ post("oggcast~: downsampling from %.0f to %d Hz", sys_getsr(), x->x_samplerate);
+ x->x_skip = 3;
+ } else post("oggcast~: warning: resampling from %.0f to %d not supported", sys_getsr(), x->x_samplerate);
+ }
+ if(x->x_vbr == 1)
+ { /* quality based setting */
+ if(vorbis_encode_init_vbr(&(x->x_vi), x->x_channels, x->x_samplerate, x->x_quality))
+ {
+ post("oggcast~: ogg/vorbis mode initialisation failed: invalid parameters for quality");
+ vorbis_info_clear(&(x->x_vi));
+ return (-1);
+ }
+ }
+ else
+ { /* bitrate based setting */
+ if(vorbis_encode_init(&(x->x_vi), x->x_channels, x->x_samplerate, x->x_br_max*1024, x->x_br_nom*1024, x->x_br_min*1024))
+ {
+ post("oggcast~: ogg/vorbis mode initialisation failed: invalid parameters for quality");
+ vorbis_info_clear(&(x->x_vi));
+ return (-1);
+ }
+ }
+
+ /* add a comment */
+ vorbis_comment_init(&(x->x_vc));
+ vorbis_comment_add_tag(&(x->x_vc),"TITLE", x->x_bcname);
+ vorbis_comment_add_tag(&(x->x_vc),"ARTIST", x->x_bcartist);
+ vorbis_comment_add_tag(&(x->x_vc),"GENRE",x->x_bcgenre);
+ vorbis_comment_add_tag(&(x->x_vc),"DESCRIPTION", x->x_bcdescription);
+ vorbis_comment_add_tag(&(x->x_vc),"LOCATION",x->x_bclocation);
+ vorbis_comment_add_tag(&(x->x_vc),"PERFORMER",x->x_bcperformer);
+ vorbis_comment_add_tag(&(x->x_vc),"COPYRIGHT",x->x_bccopyright);
+ vorbis_comment_add_tag(&(x->x_vc),"CONTACT",x->x_bccontact);
+ vorbis_comment_add_tag(&(x->x_vc),"DATE",x->x_bcdate);
+ vorbis_comment_add_tag(&(x->x_vc),"ENCODER","oggcast~ v0.2 for pure-data");
+
+ /* set up the analysis state and auxiliary encoding storage */
+ vorbis_analysis_init(&(x->x_vd),&(x->x_vi));
+ vorbis_block_init(&(x->x_vd),&(x->x_vb));
+
+ /* set up our packet->stream encoder */
+ /* pick a random serial number; that way we can more likely build
+ chained streams just by concatenation */
+ srand(time(NULL));
+ ogg_stream_init(&(x->x_os),rand());
+
+ /* Vorbis streams begin with three headers; the initial header (with
+ most of the codec setup parameters) which is mandated by the Ogg
+ bitstream spec. The second header holds any comment fields. The
+ third header holds the bitstream codebook. We merely need to
+ make the headers, then pass them to libvorbis one at a time;
+ libvorbis handles the additional Ogg bitstream constraints */
+
+ {
+ ogg_packet header;
+ ogg_packet header_comm;
+ ogg_packet header_code;
+
+ vorbis_analysis_headerout(&(x->x_vd),&(x->x_vc),&header,&header_comm,&header_code);
+ ogg_stream_packetin(&(x->x_os),&header); /* automatically placed in its own page */
+ ogg_stream_packetin(&(x->x_os),&header_comm);
+ ogg_stream_packetin(&(x->x_os),&header_code);
+
+ /* We don't have to write out here, but doing so makes streaming
+ * much easier, so we do, flushing ALL pages. This ensures the actual
+ * audio data will start on a new page
+ *
+ * IceCast2 server will take this as a first info about our stream
+ */
+ while(!x->x_eos)
+ {
+ int result=ogg_stream_flush(&(x->x_os),&(x->x_og));
+ if(result==0)break;
+ err = send(x->x_fd, x->x_og.header, x->x_og.header_len, 0);
+ if(err < 0)
+ {
+ error("oggcast~: could not send ogg header to server (%d)", err);
+ x->x_eos = 1; /* indicate end of stream */
+ return (-1);
+ }
+ err = send(x->x_fd, x->x_og.body, x->x_og.body_len, 0);
+ if(err < 0)
+ {
+ error("oggcast~: could not send ogg body to server (%d)", err);
+ x->x_eos = 1; /* indicate end of stream */
+ return (-1);
+ }
+ }
+ }
+ return (0);
+}
+
+ /* deinit the ogg/vorbis decoder */
+static void oggcast_vorbis_deinit(t_oggcast *x)
+{
+ vorbis_analysis_wrote(&(x->x_vd),0);
+ /* get rid of remaining data in encoder, if any */
+ while(vorbis_analysis_blockout(&(x->x_vd),&(x->x_vb))==1)
+ {
+ vorbis_analysis(&(x->x_vb),NULL);
+ vorbis_bitrate_addblock(&(x->x_vb));
+
+ while(vorbis_bitrate_flushpacket(&(x->x_vd),&(x->x_op)))
+ {
+ ogg_stream_packetin(&(x->x_os),&(x->x_op));
+ oggcast_stream(x, x->x_fd);
+ }
+ }
+ /* clean up and exit. vorbis_info_clear() must be called last */
+ ogg_stream_clear(&(x->x_os));
+ vorbis_block_clear(&(x->x_vb));
+ vorbis_dsp_clear(&(x->x_vd));
+ vorbis_comment_clear(&(x->x_vc));
+ vorbis_info_clear(&(x->x_vi));
+}
+
+ /* encode ogg/vorbis and stream new data */
+static int oggcast_encode(t_oggcast *x, float *buf, int channels, int fifosize, int fd)
+{
+ unsigned short i, ch;
+ int err = 0;
+ int n, pages = 0;
+
+ /* expose the buffer to submit data */
+ float **inbuffer=vorbis_analysis_buffer(&(x->x_vd),READ);
+
+ /* read from buffer */
+ for(n = 0; n < READ / channels; n++) /* fill encode buffer */
+ {
+ for(ch = 0; ch < channels; ch++)
+ {
+ inbuffer[ch][n] = *buf++;
+ }
+ }
+ /* tell the library how much we actually submitted */
+ vorbis_analysis_wrote(&(x->x_vd),n);
+
+ /* vorbis does some data preanalysis, then divvies up blocks for
+ more involved (potentially parallel) processing. Get a single
+ block for encoding now */
+ while(vorbis_analysis_blockout(&(x->x_vd),&(x->x_vb))==1)
+ {
+ /* analysis, assume we want to use bitrate management */
+ vorbis_analysis(&(x->x_vb),NULL);
+ vorbis_bitrate_addblock(&(x->x_vb));
+
+ while(vorbis_bitrate_flushpacket(&(x->x_vd),&(x->x_op)))
+ {
+ /* weld the packet into the bitstream */
+ ogg_stream_packetin(&(x->x_os),&(x->x_op));
+ err = oggcast_stream(x, fd); /* stream packet to server */
+ if(err >= 0)
+ {
+ pages += err; /* count pages */
+ }
+ else return (err);
+ }
+ }
+ return (pages);
+}
+
+ /* connect to icecast2 server */
+static int oggcast_child_connect(char *hostname, char *mountpoint, t_int portno,
+ char *passwd, char *bcname, char *bcurl,
+ char *bcgenre, t_int bcpublic, t_int br_nom)
+{
+ struct sockaddr_in server;
+ struct hostent *hp;
+
+ /* variables used for communication with server */
+ const char * buf = 0;
+ char resp[STRBUF_SIZE];
+ unsigned int len;
+ fd_set fdset;
+ struct timeval tv;
+ t_int sockfd; /* our internal handle for the socket */
+ t_int ret;
+
+ sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (sockfd < 0)
+ {
+ error("oggcast~: internal error while attempting to open socket");
+ return (-1);
+ }
+
+ /* connect socket using hostname provided in command line */
+ server.sin_family = AF_INET;
+ hp = gethostbyname(hostname);
+ if (hp == 0)
+ {
+ post("oggcast~: bad host?");
+ sys_closesocket(sockfd);
+ return (-1);
+ }
+ 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("oggcast~: connecting to port %d", portno);
+ if (connect(sockfd, (struct sockaddr *) &server, sizeof (server)) < 0)
+ {
+ error("oggcast~: connection failed!\n");
+ sys_closesocket(sockfd);
+ return (-1);
+ }
+
+ /* 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("oggcast~: can not read from socket");
+ sys_closesocket(sockfd);
+ return (-1);
+ }
+
+ /* now try to log in at IceCast2 server using ICE/1.0 scheme */
+ post("oggcast~: logging in to IceCast2 server...");
+ /* send the request, a string like: "SOURCE /<mountpoint> ICE/1.0\n" */
+ buf = "SOURCE ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "/";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = mountpoint;
+ send(sockfd, buf, strlen(buf), 0);
+ buf = " ICE/1.0";
+ send(sockfd, buf, strlen(buf), 0);
+ /* send the ice headers */
+ /* password */
+ buf = "\nice-password: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = passwd;
+ send(sockfd, buf, strlen(buf), 0);
+ /* name */
+ buf = "\r\nice-name: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = bcname;
+ send(sockfd, buf, strlen(buf), 0);
+ /* url */
+ buf = "\r\nice-url: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = bcurl;
+ send(sockfd, buf, strlen(buf), 0);
+ /* genre */
+ buf = "\r\nice-genre: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = bcgenre;
+ send(sockfd, buf, strlen(buf), 0);
+ /* public */
+ buf = "\r\nice-public: ";
+ send(sockfd, buf, strlen(buf), 0);
+ if(bcpublic==0) /* set the public flag for broadcast */
+ {
+ buf = "no";
+ }
+ else
+ {
+ buf ="yes";
+ }
+ send(sockfd, buf, strlen(buf), 0);
+ /* bitrate */
+ buf = "\r\nice-bitrate: ";
+ send(sockfd, buf, strlen(buf), 0);
+ if(sprintf(resp, "%d", br_nom) == -1) /* convert int to a string */
+ {
+ error("oggcast~: wrong bitrate");
+ }
+ send(sockfd, resp, strlen(resp), 0);
+ /* description */
+ buf = "\r\nice-description: ";
+ send(sockfd, buf, strlen(buf), 0);
+ buf = "ogg/vorbis streamed from pure-data with oggcast~";
+ send(sockfd, buf, strlen(buf), 0);
+ /* end of header */
+ buf = "\r\n\r\n";
+ send(sockfd, buf, strlen(buf), 0);
+ /* end login for IceCast */
+
+ /* check if we can write to server */
+ if(oggcast_checkserver(sockfd)!= 0)
+ {
+ post("oggcast~: error: server refused to receive data");
+ return (-1);
+ }
+
+ post("oggcast~: logged in to http://%s:%d/%s", hp->h_name, portno, mountpoint);
+
+ return (sockfd);
+}
+
+
+
+static void oggcast_child_disconnect(t_int fd)
+{
+ sys_closesocket(fd);
+ post("oggcast~: connection closed");
+}
+/************** the child thread which performs data I/O ***********/
+
+#if 0 /* set this to 1 to get debugging output */
+static void pute(char *s) /* debug routine */
+{
+ write(2, s, strlen(s));
+}
+#else
+#define pute(x)
+#endif
+
+#if 1
+#define oggcast_cond_wait pthread_cond_wait
+#define oggcast_cond_signal pthread_cond_signal
+#else
+#include <sys/time.h> /* debugging version... */
+#include <sys/types.h>
+static void oggcast_fakewait(pthread_mutex_t *b)
+{
+ struct timeval timout;
+ timout.tv_sec = 0;
+ timout.tv_usec = 1000000;
+ pthread_mutex_unlock(b);
+ select(0, 0, 0, 0, &timout);
+ pthread_mutex_lock(b);
+}
+
+void oggcast_banana( void)
+{
+ struct timeval timout;
+ timout.tv_sec = 0;
+ timout.tv_usec = 200000;
+ pute("banana1\n");
+ select(0, 0, 0, 0, &timout);
+ pute("banana2\n");
+}
+
+
+#define oggcast_cond_wait(a,b) oggcast_fakewait(b)
+#define oggcast_cond_signal(a)
+#endif
+
+static void *oggcast_child_main(void *zz)
+{
+ t_oggcast *x = zz;
+ time_t now; /* to get the time */
+ pute("1\n");
+ pthread_mutex_lock(&x->x_mutex);
+ while (1)
+ {
+ int fd, fifotail;
+ pute("0\n");
+ if (x->x_requestcode == REQUEST_NOTHING)
+ {
+ pute("wait 2\n");
+ oggcast_cond_signal(&x->x_answercondition);
+ oggcast_cond_wait(&x->x_requestcondition, &x->x_mutex);
+ pute("3\n");
+ }
+ // connect to Icecast2 server
+ else if (x->x_requestcode == REQUEST_CONNECT)
+ {
+ char boo[100];
+ int sysrtn, wantbytes;
+
+ /* copy connect stuff out of the data structure so we can
+ relinquish the mutex while we're connecting to server. */
+ char *hostname = x->x_hostname;
+ char *mountpoint = x->x_mountpoint;
+ t_int portno = x->x_port;
+ char *passwd = x->x_passwd;
+ char *bcname = x->x_bcname;
+ char *bcgenre = x->x_bcgenre;
+ char *bcurl = x->x_bcurl;
+ t_int bcpublic = x->x_bcpublic;
+ t_int br_nom = x->x_br_nom;
+ /* alter the request code so that an ensuing "open" will get
+ noticed. */
+ pute("4\n");
+ x->x_requestcode = REQUEST_BUSY;
+ x->x_connecterror = 0;
+
+ /* open the socket with the mutex unlocked in case
+ we're not already connected */
+ if(x->x_fd < 0)
+ {
+ pthread_mutex_unlock(&x->x_mutex);
+ fd = oggcast_child_connect(hostname, mountpoint, portno, passwd, bcname,
+ bcurl, bcgenre, bcpublic, br_nom);
+ pthread_mutex_lock(&x->x_mutex);
+ pute("5\n");
+ /* copy back into the instance structure. */
+ x->x_connectstate = 1;
+ clock_delay(x->x_clock_connect, 0);
+ x->x_fd = fd;
+ if (fd < 0)
+ {
+ x->x_connecterror = fd;
+ x->x_connectstate = 0;
+ clock_delay(x->x_clock_connect, 0);
+ pute("connect failed\n");
+ goto lost;
+ }
+ else
+ {
+ /* get the time for the DATE comment */
+ now=time(NULL);
+ x->x_bcdate = ctime(&now);
+ x->x_pages = 0;
+ clock_delay(x->x_clock_pages, 0);
+ /* initialise the encoder */
+ if(oggcast_vorbis_init(x) == 0)
+ {
+ post("oggcast~: ogg/vorbis encoder initialised");
+ x->x_eos = 0;
+ x->x_state = STATE_STREAM;
+ }
+ else
+ {
+ post("oggcast~: could not init encoder");
+ oggcast_child_disconnect(fd);
+ post("oggcast~: connection closed due to initialisation error");
+ x->x_fd = -1;
+ x->x_connectstate = 0;
+ clock_delay(x->x_clock_connect, 0);
+ pute("oggcast~: initialisation failed\n");
+ goto lost;
+ }
+ }
+ x->x_fifotail = fifotail = 0;
+ /* set fifosize from bufsize. fifosize must be a
+ multiple of the number of bytes eaten for each DSP
+ tick. We pessimistically assume MAXVECSIZE samples
+ per tick since that could change. There could be a
+ problem here if the vector size increases while a
+ stream is being played... */
+ x->x_fifosize = x->x_bufsize - (x->x_bufsize % (x->x_channels * READ));
+ /* arrange for the "request" condition to be signalled x->x_siginterval
+ times per buffer */
+ sprintf(boo, "fifosize %d\n", x->x_fifosize);
+ pute(boo);
+ x->x_sigcountdown = x->x_sigperiod = (x->x_fifosize / (x->x_siginterval * x->x_channels * x->x_vecsize));
+ }
+ /* check if another request has been made; if so, field it */
+ if (x->x_requestcode != REQUEST_BUSY)
+ goto lost;
+ pute("6\n");
+
+ while (x->x_requestcode == REQUEST_BUSY)
+ {
+ int fifosize = x->x_fifosize, fifotail, channels;
+ float *buf = x->x_buf;
+ pute("77\n");
+
+ /* if the head is < the tail, we can immediately write
+ from tail to end of fifo to disk; otherwise we hold off
+ writing until there are at least WRITESIZE bytes in the
+ buffer */
+ if (x->x_fifohead < x->x_fifotail ||
+ x->x_fifohead >= x->x_fifotail + READ
+ || (x->x_requestcode == REQUEST_CLOSE &&
+ x->x_fifohead != x->x_fifotail))
+ { /* encode audio and send to server */
+ pute("8\n");
+ fifotail = x->x_fifotail;
+ channels = x->x_channels;
+ fd = x->x_fd;
+ pthread_mutex_unlock(&x->x_mutex);
+ sysrtn = oggcast_encode(x, buf + fifotail, channels, fifosize, fd);
+ pthread_mutex_lock(&x->x_mutex);
+ if (x->x_requestcode != REQUEST_BUSY &&
+ x->x_requestcode != REQUEST_CLOSE)
+ break;
+ if (sysrtn < 0)
+ {
+ post("oggcast~: closing due to error...");
+ goto lost;
+ }
+ else
+ {
+ x->x_fifotail += READ;
+ x->x_pages += sysrtn;
+ if (x->x_fifotail >= fifosize)
+ x->x_fifotail = 0;
+ }
+ sprintf(boo, "after: head %d, tail %d, pages %d\n", x->x_fifohead, x->x_fifotail, sysrtn);
+ pute(boo);
+ }
+ else /* just wait... */
+ {
+ pute("wait 7a ...\n");
+ oggcast_cond_signal(&x->x_answercondition);
+ pute("signalled\n");
+ oggcast_cond_wait(&x->x_requestcondition,
+ &x->x_mutex);
+ pute("7a done\n");
+ continue;
+ }
+ /* signal parent in case it's waiting for data */
+ oggcast_cond_signal(&x->x_answercondition);
+ }
+ }
+
+ /* reinit encoder (settings have changed) */
+ else if (x->x_requestcode == REQUEST_REINIT)
+ {
+ pthread_mutex_unlock(&x->x_mutex);
+ oggcast_vorbis_deinit(x);
+ oggcast_vorbis_init(x);
+ pthread_mutex_lock(&x->x_mutex);
+ post("oggcast~: ogg/vorbis encoder reinitialised");
+ x->x_state = STATE_STREAM;
+ if (x->x_requestcode == REQUEST_REINIT)
+ x->x_requestcode = REQUEST_CONNECT;
+ oggcast_cond_signal(&x->x_answercondition);
+ }
+ /* close connection to server (disconnect) */
+ else if (x->x_requestcode == REQUEST_CLOSE)
+ {
+lost:
+ x->x_state = STATE_IDLE;
+ if (x->x_fd >= 0)
+ {
+ fd = x->x_fd;
+ pthread_mutex_unlock(&x->x_mutex);
+ oggcast_vorbis_deinit(x);
+ oggcast_child_disconnect(fd);
+ pthread_mutex_lock(&x->x_mutex);
+ x->x_fd = -1;
+ }
+ if (x->x_requestcode == REQUEST_CLOSE)
+ x->x_requestcode = REQUEST_NOTHING;
+ if (x->x_requestcode == REQUEST_BUSY) /* disconnect due to error */
+ x->x_requestcode = REQUEST_NOTHING;
+ x->x_connectstate = 0;
+ clock_delay(x->x_clock_connect, 0);
+ x->x_eos = 1;
+ oggcast_cond_signal(&x->x_answercondition);
+ }
+ // quit everything
+ else if (x->x_requestcode == REQUEST_QUIT)
+ {
+ x->x_state = STATE_IDLE;
+ if (x->x_fd >= 0)
+ {
+ fd = x->x_fd;
+ pthread_mutex_unlock(&x->x_mutex);
+ oggcast_vorbis_deinit(x);
+ oggcast_child_disconnect(fd);
+ pthread_mutex_lock(&x->x_mutex);
+ x->x_fd = -1;
+ }
+ x->x_connectstate = 0;
+ clock_delay(x->x_clock_connect, 0);
+ x->x_requestcode = REQUEST_NOTHING;
+ oggcast_cond_signal(&x->x_answercondition);
+ break;
+ }
+ else
+ {
+ pute("13\n");
+ }
+ }
+ pute("thread exit\n");
+ pthread_mutex_unlock(&x->x_mutex);
+ return (0);
+}
+
+/******** the object proper runs in the calling (parent) thread ****/
+
+static void oggcast_tick_connect(t_oggcast *x)
+{
+ pthread_mutex_lock(&x->x_mutex);
+ outlet_float(x->x_connection, x->x_connectstate);
+ pthread_mutex_unlock(&x->x_mutex);
+}
+
+static void oggcast_tick_pages(t_oggcast *x)
+{
+ /* output new no. of pages if anything changed */
+ t_float pages;
+ pthread_mutex_lock(&x->x_mutex);
+ pages = x->x_pages; /* get current value with mutex locked */
+ pthread_mutex_unlock(&x->x_mutex);
+ if(pages != x->x_lastpages)
+ {
+ outlet_float(x->x_outpages, pages);
+ x->x_lastpages = pages;
+ }
+ clock_delay(x->x_clock_pages, UPDATE_INTERVAL); /* come back again... */
+}
+
+static void *oggcast_new(t_floatarg fnchannels, t_floatarg fbufsize)
+{
+ t_oggcast *x;
+ int nchannels = fnchannels, bufsize = fbufsize * 1024, i;
+ float *buf;
+
+ if (nchannels < 1)
+ nchannels = 2; /* two channels as default */
+ else if (nchannels > MAXSTREAMCHANS)
+ nchannels = MAXSTREAMCHANS;
+ /* check / set buffer size */
+ if (bufsize <= 0) bufsize = DEFBUFPERCHAN * nchannels;
+ else if (bufsize < MINBUFSIZE)
+ bufsize = MINBUFSIZE;
+ else if (bufsize > MAXBUFSIZE)
+ bufsize = MAXBUFSIZE;
+ buf = getbytes(bufsize*sizeof(t_float));
+ if (!buf) return (0);
+
+ x = (t_oggcast *)pd_new(oggcast_class);
+
+ for (i = 1; i < nchannels; i++)
+ inlet_new (&x->x_obj, &x->x_obj.ob_pd, gensym ("signal"), gensym ("signal"));
+ x->x_connection = outlet_new(&x->x_obj, gensym("float"));
+ x->x_outpages = outlet_new(&x->x_obj, gensym("float"));
+ x->x_ninlets = nchannels;
+
+ x->x_clock_connect = clock_new(x, (t_method)oggcast_tick_connect);
+ x->x_clock_pages = clock_new(x, (t_method)oggcast_tick_pages);
+
+ pthread_mutex_init(&x->x_mutex, 0);
+ pthread_cond_init(&x->x_requestcondition, 0);
+ pthread_cond_init(&x->x_answercondition, 0);
+
+ x->x_vecsize = 2;
+ x->x_state = STATE_IDLE;
+ x->x_buf = buf;
+ x->x_bufsize = bufsize;
+ x->x_siginterval = 32; /* signal 32 times per buffer */
+ /* I found this to be most efficient on my machine */
+ x->x_fifosize = x->x_fifohead = x->x_fifotail = x->x_requestcode = 0;
+
+ x->x_connectstate = 0; /* indicating state of connection */
+ x->x_outvalue = 0; /* value at output currently is 0 */
+
+ x->x_samplerate = sys_getsr();
+ x->x_resample.upsample = x->x_resample.downsample = 1; /* don't resample */
+
+
+ x->x_fd = -1;
+ x->x_eos = 0;
+ x->x_vbr = 1; /* use the vbr setting by default */
+ x->x_passwd = "letmein";
+ x->x_samplerate = sys_getsr(); /* default to Pd's sampling rate */
+ x->x_skip = 1; /* no resampling supported */
+ x->x_quality = 0.4; /* quality 0.4 gives roughly 128kbps VBR stream */
+ x->x_channels = nchannels; /* stereo */
+ x->x_br_max = 144;
+ x->x_br_nom = 128;
+ x->x_br_min = 96;
+ x->x_pages = x->x_lastpages = 0;
+ x->x_bcname = "ogg/vorbis stream";
+ x->x_bcurl = "http://www.akustische-kunst.org/puredata/";
+ x->x_bcgenre = "experimental";
+ x->x_bcdescription = "ogg/vorbis stream emitted from pure-data with oggcast~";
+ x->x_bcartist = "Pd and oggcast~ v0.2";
+ x->x_bclocation = x->x_bcurl;
+ x->x_bccopyright = "";
+ x->x_bcperformer = "";
+ x->x_bccontact = "";
+ x->x_bcdate = "";
+ x->x_bcpublic = 1;
+ x->x_mountpoint = "puredata.ogg";
+
+ post(oggcast_version);
+ post("oggcast~: set buffer to %dk bytes", bufsize / 1024);
+ post("oggcast~: encoding %d channels @ %d Hz", x->x_channels, x->x_samplerate);
+
+ clock_delay(x->x_clock_pages, 0);
+ pthread_create(&x->x_childthread, 0, oggcast_child_main, x);
+ return (x);
+}
+
+static t_int *oggcast_perform(t_int *w)
+{
+ t_oggcast *x = (t_oggcast *)(w[1]);
+ int vecsize = x->x_vecsize, ninlets = x->x_ninlets, channels = x->x_channels, i, j, skip = x->x_skip;
+ float *sp = x->x_buf;
+ pthread_mutex_lock(&x->x_mutex);
+ if (x->x_state != STATE_IDLE)
+ {
+ int wantbytes;
+ /* get 'wantbytes' bytes from inlet */
+ wantbytes = channels * vecsize / skip; /* we'll get vecsize bytes per channel */
+ /* check if there is enough space in buffer to write all samples */
+ while (x->x_fifotail > x->x_fifohead &&
+ x->x_fifotail < x->x_fifohead + wantbytes + 1)
+ {
+ pute("wait...\n");
+ oggcast_cond_signal(&x->x_requestcondition);
+ oggcast_cond_wait(&x->x_answercondition, &x->x_mutex);
+ pute("done\n");
+ }
+
+ /* output audio */
+ sp += x->x_fifohead;
+
+ if(ninlets >= channels)
+ {
+ for(j = 0; j < vecsize; j += skip)
+ {
+ for(i = 0; i < channels; i++)
+ {
+ *sp++ = x->x_outvec[i][j];
+ }
+ }
+ }
+ else if(channels == ninlets * 2) /* convert mono -> stereo */
+ {
+ for(j = 0; j < vecsize; j += skip)
+ {
+ for(i = 0; i < ninlets; i++)
+ {
+ *sp++ = x->x_outvec[i][j];
+ *sp++ = x->x_outvec[i][j];
+ }
+ }
+ }
+
+
+ x->x_fifohead += wantbytes;
+ if (x->x_fifohead >= x->x_fifosize)
+ x->x_fifohead = 0;
+ /* signal the child thread */
+ if ((--x->x_sigcountdown) <= 0)
+ {
+ pute("signal 1\n");
+ oggcast_cond_signal(&x->x_requestcondition);
+ x->x_sigcountdown = x->x_sigperiod;
+ }
+ }
+
+ pthread_mutex_unlock(&x->x_mutex);
+
+ return (w+2);
+}
+
+
+static void oggcast_disconnect(t_oggcast *x)
+{
+ /* LATER rethink whether you need the mutex just to set a variable? */
+ pthread_mutex_lock(&x->x_mutex);
+ if(x->x_fd >= 0)
+ {
+ x->x_state = STATE_IDLE;
+ x->x_requestcode = REQUEST_CLOSE;
+ oggcast_cond_signal(&x->x_requestcondition);
+ }
+ else post("oggcast~: not connected");
+ pthread_mutex_unlock(&x->x_mutex);
+}
+
+
+ /* connect method. Called as:
+ connect <hostname or IP> <mountpoint> <portnumber>
+ */
+
+static void oggcast_connect(t_oggcast *x, t_symbol *s, int argc, t_atom *argv)
+{
+ t_symbol *hostsym = atom_getsymbolarg(0, argc, argv);
+ t_symbol *mountsym = atom_getsymbolarg(1, argc, argv);
+ t_float portno = atom_getfloatarg(2, argc, argv);
+ if (!*hostsym->s_name) /* check for hostname */
+ return;
+ if (!portno) /* check wether the portnumber is specified */
+ portno = 8000; /* ...assume port 8000 as standard */
+ pthread_mutex_lock(&x->x_mutex);
+ if(x->x_fd >= 0)
+ {
+ post("oggcast~: already connected");
+ }
+ else
+ {
+ x->x_requestcode = REQUEST_CONNECT;
+ x->x_hostname = hostsym->s_name;
+ x->x_mountpoint = mountsym->s_name;
+ x->x_port = portno;
+
+ x->x_fifotail = 0;
+ x->x_fifohead = 0;
+ // if(x->x_recover != 1)x->x_fifobytes = 0;
+
+ x->x_connecterror = 0;
+ x->x_state = STATE_STARTUP;
+ oggcast_cond_signal(&x->x_requestcondition);
+ }
+ pthread_mutex_unlock(&x->x_mutex);
+}
+
+static void oggcast_float(t_oggcast *x, t_floatarg f)
+{
+ if (f != 0)
+ {
+ pthread_mutex_lock(&x->x_mutex);
+ if(x->x_fd >= 0)
+ {
+ post("oggcast~: already connected");
+ }
+ else
+ {
+ if(x->x_recover != 1)
+ {
+ x->x_fifotail = 0;
+ x->x_fifohead = 0;
+ }
+ x->x_requestcode = REQUEST_CONNECT;
+
+ x->x_fifotail = 0;
+ x->x_fifohead = 0;
+
+ x->x_connecterror = 0;
+ x->x_state = STATE_STARTUP;
+ oggcast_cond_signal(&x->x_requestcondition);
+ }
+ pthread_mutex_unlock(&x->x_mutex);
+ }
+ else oggcast_disconnect(x);
+}
+
+static void oggcast_dsp(t_oggcast *x, t_signal **sp)
+{
+ int i, ninlets = x->x_ninlets;
+ pthread_mutex_lock(&x->x_mutex);
+ x->x_vecsize = sp[0]->s_n;
+
+ x->x_sigperiod = (x->x_fifosize / (x->x_siginterval * ninlets * x->x_vecsize));
+ for (i = 0; i < ninlets; i++)
+ x->x_outvec[i] = sp[i]->s_vec;
+ pthread_mutex_unlock(&x->x_mutex);
+ dsp_add(oggcast_perform, 1, x);
+}
+
+ /* set password for oggcast server */
+static void oggcast_password(t_oggcast *x, t_symbol *password)
+{
+ pthread_mutex_lock(&x->x_mutex);
+ x->x_passwd = password->s_name;
+ pthread_mutex_unlock(&x->x_mutex);
+}
+ /* set comment fields for header (reads in just anything) */
+static void oggcast_comment(t_oggcast *x, t_symbol *s, t_int argc, t_atom* argv)
+{
+ t_int i = argc;
+ char *comment = NULL;
+ int len = strlen(atom_gensym(argv)->s_name);
+
+ comment = atom_gensym(argv)->s_name;
+
+ while (len--)
+ {
+ if(*(comment + len) == '=')*(comment + len) = ' ';
+ if(*(comment + len) == '_')*(comment + len) = ' ';
+ }
+
+ pthread_mutex_lock(&x->x_mutex);
+ if(strstr(s->s_name, "ARTIST"))
+ {
+ x->x_bcartist = comment;
+ post("oggcast~: ARTIST=%s", x->x_bcartist);
+ }
+ else if(strstr(s->s_name, "GENRE"))
+ {
+ x->x_bcgenre = comment;
+ post("oggcast~: GENRE=%s", x->x_bcgenre);
+ }
+ else if(strstr(s->s_name, "TITLE"))
+ {
+ x->x_bcname = comment;
+ post("oggcast~: TITLE=%s", x->x_bcname);
+ }
+ else if(strstr(s->s_name, "PERFORMER"))
+ {
+ x->x_bcperformer = comment;
+ post("oggcast~: PERFORMER=%s", x->x_bcperformer);
+ }
+ else if(strstr(s->s_name, "LOCATION"))
+ {
+ x->x_bclocation = comment;
+ post("oggcast~: LOCATION=%s", x->x_bclocation);
+ }
+ else if(strstr(s->s_name, "COPYRIGHT"))
+ {
+ x->x_bccopyright = comment;
+ post("oggcast~: COPYRIGHT=%s", x->x_bccopyright);
+ }
+ else if(strstr(s->s_name, "CONTACT"))
+ {
+ x->x_bccontact = comment;
+ post("oggcast~: CONTACT=%s", x->x_bccontact);
+ }
+ else if(strstr(s->s_name, "DESCRIPTION"))
+ {
+ x->x_bcdescription = comment;
+ post("oggcast~: DESCRIPTION=%s", x->x_bcdescription);
+ }
+ else if(strstr(s->s_name, "DATE"))
+ {
+ x->x_bcdate = comment;
+ post("oggcast~: DATE=%s", x->x_bcdate);
+ }
+ else post("oggcast~: no method for %s", s->s_name);
+ if(x->x_state == STATE_STREAM)
+ {
+ x->x_state = STATE_IDLE;
+ x->x_requestcode = REQUEST_REINIT;
+ oggcast_cond_signal(&x->x_requestcondition);
+ }
+ pthread_mutex_unlock(&x->x_mutex);
+}
+ /* settings for variable bitrate encoding */
+static void oggcast_vbr(t_oggcast *x, t_floatarg fsr, t_floatarg fchannels,
+ t_floatarg fquality)
+{
+ pthread_mutex_lock(&x->x_mutex);
+ x->x_vbr = 1;
+ x->x_samplerate = (t_int)fsr;
+ x->x_quality = fquality;
+ x->x_channels = (t_int)fchannels;
+ post("oggcast~: %d channels @ %d Hz, quality %.2f", x->x_channels, x->x_samplerate, x->x_quality);
+ if(x->x_state == STATE_STREAM)
+ {
+ x->x_state = STATE_IDLE;
+ x->x_requestcode = REQUEST_REINIT;
+ oggcast_cond_signal(&x->x_requestcondition);
+ }
+ pthread_mutex_unlock(&x->x_mutex);
+}
+
+ /* settings for bitrate-based vbr encoding */
+static void oggcast_vorbis(t_oggcast *x, t_floatarg fsr, t_floatarg fchannels,
+ t_floatarg fmax, t_floatarg fnom, t_floatarg fmin)
+{
+ pthread_mutex_lock(&x->x_mutex);
+ x->x_vbr = 0;
+ x->x_samplerate = (t_int)fsr;
+ x->x_channels = (t_int)fchannels;
+ x->x_br_max = (t_int)fmax;
+ x->x_br_nom = (t_int)fnom;
+ x->x_br_min = (t_int)fmin;
+ post("oggcast~: %d channels @ %d Hz, bitrates: max. %d / nom. %d / min. %d",
+ x->x_channels, x->x_samplerate, x->x_br_max, x->x_br_nom, x->x_br_min);
+ if(x->x_state == STATE_STREAM)
+ {
+ x->x_state = STATE_IDLE;
+ x->x_requestcode = REQUEST_REINIT;
+ oggcast_cond_signal(&x->x_requestcondition);
+ }
+ pthread_mutex_unlock(&x->x_mutex);
+}
+ /* print settings to pd's console window */
+static void oggcast_print(t_oggcast *x)
+{
+ pthread_mutex_lock(&x->x_mutex);
+ post("oggcast~: mountpoint at IceCast2: %s", x->x_mountpoint);
+ if(x->x_vbr == 1)
+ {
+ post("oggcast~: Ogg Vorbis encoder: %d channels @ %d Hz, quality %.2f", x->x_channels, x->x_samplerate, x->x_quality);
+ }
+ else
+ {
+ post("oggcast~: Ogg Vorbis encoder: %d channels @ %d Hz, bitrates: max. %d, nom. %d, min. %d",
+ x->x_channels, x->x_samplerate, x->x_br_max, x->x_br_nom, x->x_br_min);
+ }
+ post("oggcast~: Ogg Vorbis comments:");
+ post(" TITLE = %s", x->x_bcname);
+ post(" ARTIST = %s", x->x_bcartist);
+ post(" PERFORMER = %s", x->x_bcperformer);
+ post(" GENRE = %s", x->x_bcgenre);
+ post(" LOCATION = %s", x->x_bclocation);
+ post(" COPYRIGHT = %s", x->x_bccopyright);
+ post(" CONTACT = %s", x->x_bccontact);
+ post(" DESCRIPTION = %s", x->x_bcdescription);
+ post(" DATE = %s", x->x_bcdate);
+ pthread_mutex_unlock(&x->x_mutex);
+}
+
+
+static void oggcast_free(t_oggcast *x)
+{
+ /* request QUIT and wait for acknowledge */
+ void *threadrtn;
+ pthread_mutex_lock(&x->x_mutex);
+ x->x_requestcode = REQUEST_QUIT;
+ post("stopping oggcast thread...");
+ oggcast_cond_signal(&x->x_requestcondition);
+ while (x->x_requestcode != REQUEST_NOTHING)
+ {
+ post("signalling...");
+ oggcast_cond_signal(&x->x_requestcondition);
+ oggcast_cond_wait(&x->x_answercondition, &x->x_mutex);
+ }
+ pthread_mutex_unlock(&x->x_mutex);
+ if (pthread_join(x->x_childthread, &threadrtn))
+ error("oggcast_free: join failed");
+ post("... done.");
+
+ pthread_cond_destroy(&x->x_requestcondition);
+ pthread_cond_destroy(&x->x_answercondition);
+ pthread_mutex_destroy(&x->x_mutex);
+ freebytes(x->x_buf, x->x_bufsize*sizeof(t_float));
+ clock_free(x->x_clock_connect);
+ clock_free(x->x_clock_pages);
+}
+
+void oggcast_tilde_setup(void)
+{
+ oggcast_class = class_new(gensym("oggcast~"), (t_newmethod)oggcast_new,
+ (t_method)oggcast_free, sizeof(t_oggcast), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
+ CLASS_MAINSIGNALIN(oggcast_class, t_oggcast, x_f );
+ class_addfloat(oggcast_class, (t_method)oggcast_float);
+ class_addmethod(oggcast_class, (t_method)oggcast_disconnect, gensym("disconnect"), 0);
+ class_addmethod(oggcast_class, (t_method)oggcast_dsp, gensym("dsp"), 0);
+ class_addmethod(oggcast_class, (t_method)oggcast_connect, gensym("connect"), A_GIMME, 0);
+ class_addmethod(oggcast_class, (t_method)oggcast_print, gensym("print"), 0);
+ class_addmethod(oggcast_class, (t_method)oggcast_password, gensym("passwd"), A_SYMBOL, 0);
+ class_addmethod(oggcast_class, (t_method)oggcast_vorbis, gensym("vorbis"), A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, 0);
+ class_addmethod(oggcast_class, (t_method)oggcast_vbr, gensym("vbr"), A_FLOAT, A_FLOAT, A_FLOAT, 0);
+ class_addanything(oggcast_class, oggcast_comment);
+ class_sethelpsymbol(oggcast_class, gensym("help-oggcast~.pd"));
+}
\ No newline at end of file diff --git a/oggcast~/readme b/oggcast~/readme new file mode 100644 index 0000000..b3090ec --- /dev/null +++ b/oggcast~/readme @@ -0,0 +1,116 @@ +Version 0.2
+copyright (c) 2002 by Olaf Matthes
+
+oggcast~ is a ogg/vorbis streaming external for pd (by Miller
+Puckette) that connects to an IceCast2 server.
+
+
+To run oggcast~ place the file oggcast~.dll for win or oggcast~.pd_linux
+in the directory of our patch or start pd with '-lib oggcast~' flag.
+
+To compile oggcast~ on Linux get the ogg/vorbice library from
+http://www.vorbis.com/.
+You have to modify the makefile to make it point to the place where the
+ogg/vorbis library is.
+
+
+This software is published under LGPL terms.
+
+This is software with ABSOLUTELY NO WARRANTY.
+Use it at your OWN RISK. It's possible to damage e.g. hardware or your hearing
+due to a bug or for other reasons.
+
+*****************************************************************************
+
+oggcast~ uses the ogg/vorbice library to encode audio data.
+The latest version of ogg/vorbis can be found at http://www.vorbice.com/
+
+Below is the original copyright information taken from the ogg/vorbis library:
+
+
+Copyright (c) 2001, Xiphophorus
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+- Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+- Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+- Neither the name of the Xiphophorus nor the names of its contributors
+may be used to endorse or promote products derived from this software
+without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*****************************************************************************
+
+Usage:
+
+Use message "vbr <samplerate> <channels> <quality>" to set the vorbis
+encoding parameters. Resampling is currently not supported, so 'samplerate'
+should be the one pd is running at. 'channels' specyfies the number of channels
+to stream. This can be set to 2 (default) or 1 which means mono stream taking
+the leftmost audio input only. 'quality' can be a value between 0.0 and 1.0
+giving the quality of the stream. 0.4 (default) results in a stream that's
+about 128kbps.
+
+Since Vorbis uses VBR encoding, bitrates vary depending on the type of audio
+signal to be encoded. A pure sine [osc~] results in the smalest stream, com-
+plex audio signals will increase this value significantly. To test the maximum
+bitrate that might occur for a quality setting use noise~ as signal input.
+
+Use message "vorbis <samplerate> <channels> <maximum bitrate> <nominal bit-
+rate> <minimal bitrate>" to set encoding quality on the basis of bitrates.
+When setting all three bitrate parameters to the same value one gets a
+constant bitrate stream. Values are in kbps!
+
+Message "connect <host> <mountpoint> <port>" connects to the IceCast2 server.
+Note that no response about succesfull connection is send by the server. All
+messages in the pd console window about connection status depend on the ability
+to send data to the server.
+The mountpoint should end with '.ogg' to indiocate to the player/client that
+it is an ogg/vorbis encoded stream.
+
+Use "passwd <passwort>" to set your password (default is 'letmein') and
+"disconnect" to disconnect from the server. "print" prints out the current
+vorbis encoder settings.
+
+To set the comment tags in the ogg/vorbis header (which can be displayed by
+the receiving client) use message "<NAMEOFTAG> <comment>". Supported tags are:
+TITLE, ARTIST, GENRE, PERFORMER, LOCATION, COPYRIGHT, CONTACT, DESCRIPTION and
+DATE (which is automatically set to the date/time the broadcast started). To
+get spaces use '=' or '_' instead. Note that under Win2k '=' sometimes get lost
+from the patch after saving!!!
+
+
+Listening to it:
+
+To listen to ogg/vorbis encoded livestreams many player need an extra plug-in.
+Have a look at http://www.vorbis.com/ to find the appropiate plug-in for your
+player.
+To play back the stream just open lacation http://<server>:<port>/<mountpoint>.
+
+Note that changing encoding parameters or header comments while oggcast~ is
+streaming to the server might result in audible dropouts.
+
+
+
+Latest version can be found at:
+http://www.akustische-kunst.de/puredata/
+
+Please report any bugs to olaf.matthes@gmx.de!
\ No newline at end of file diff --git a/oggcast~/vorbisenc.h b/oggcast~/vorbisenc.h new file mode 100644 index 0000000..901c47a --- /dev/null +++ b/oggcast~/vorbisenc.h @@ -0,0 +1,93 @@ +/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 *
+ * by the XIPHOPHORUS Company http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: vorbis encode-engine setup
+ last mod: $Id: vorbisenc.h,v 1.1 2002-11-26 10:51:49 ggeiger Exp $
+
+ ********************************************************************/
+
+#ifndef _OV_ENC_H_
+#define _OV_ENC_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#include "codec.h"
+
+extern int vorbis_encode_init(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ long max_bitrate,
+ long nominal_bitrate,
+ long min_bitrate);
+
+extern int vorbis_encode_setup_managed(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ long max_bitrate,
+ long nominal_bitrate,
+ long min_bitrate);
+
+extern int vorbis_encode_setup_vbr(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ float /* quality level from 0. (lo) to 1. (hi) */
+ );
+
+extern int vorbis_encode_init_vbr(vorbis_info *vi,
+ long channels,
+ long rate,
+
+ float base_quality /* quality level from 0. (lo) to 1. (hi) */
+ );
+
+extern int vorbis_encode_setup_init(vorbis_info *vi);
+
+extern int vorbis_encode_ctl(vorbis_info *vi,int number,void *arg);
+
+#define OV_ECTL_RATEMANAGE_GET 0x10
+
+#define OV_ECTL_RATEMANAGE_SET 0x11
+#define OV_ECTL_RATEMANAGE_AVG 0x12
+#define OV_ECTL_RATEMANAGE_HARD 0x13
+
+#define OV_ECTL_LOWPASS_GET 0x20
+#define OV_ECTL_LOWPASS_SET 0x21
+
+#define OV_ECTL_IBLOCK_GET 0x30
+#define OV_ECTL_IBLOCK_SET 0x31
+
+struct ovectl_ratemanage_arg {
+ int management_active;
+
+ long bitrate_hard_min;
+ long bitrate_hard_max;
+ double bitrate_hard_window;
+
+ long bitrate_av_lo;
+ long bitrate_av_hi;
+ double bitrate_av_window;
+ double bitrate_av_window_center;
+};
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
+
+
|