diff options
| author | Martin Peach <mrpeach@users.sourceforge.net> | 2010-01-11 14:25:48 +0000 |
|---|---|---|
| committer | Martin Peach <mrpeach@users.sourceforge.net> | 2010-01-11 14:25:48 +0000 |
| commit | d141cb156f5088c3e6b99eca0b86694e957100a8 (patch) | |
| tree | 47c9cf8a2b66790ce7e44ee39330fb814064345d /net/udpsend~.h | |
| parent | 0f2f021304f0d8abac28f6126b3cea1c6fe0e5a1 (diff) | |
Versions of netsend~ for udp.
svn path=/trunk/externals/mrpeach/; revision=12953
Diffstat (limited to 'net/udpsend~.h')
| -rw-r--r-- | net/udpsend~.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/net/udpsend~.h b/net/udpsend~.h new file mode 100644 index 0000000..6894e49 --- /dev/null +++ b/net/udpsend~.h @@ -0,0 +1,156 @@ +/* udpsend~.h based on netsend~.h */
+/* ------------------------ netsend~ ------------------------------------------ */
+/* */
+/* Tilde object to send uncompressed audio data to netreceive~. */
+/* Written by Olaf Matthes <olaf.matthes@gmx.de>. */
+/* Based on streamout~ by Guenter Geiger. */
+/* Get source at http://www.akustische-kunst.org/ */
+/* */
+/* 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. */
+/* */
+/* This project was commissioned by the Society for Arts and Technology [SAT], */
+/* Montreal, Quebec, Canada, http://www.sat.qc.ca/. */
+/* */
+/* ---------------------------------------------------------------------------- */
+
+
+/* This file is based on and inspired by stream.h (C) Guenter Geiger 1999. */
+/* Some enhancements have been made with the goal of keeping compatibility */
+/* between the stream formats of streamout~/in~ and netsend~/receive~. */
+
+#define VERSION "0.1"
+
+#define DEFAULT_AUDIO_CHANNELS 32 /* nax. number of audio channels we support */
+#define DEFAULT_AUDIO_BUFFER_SIZE 1024 /* number of samples in one audio block */
+#define DEFAULT_UDP_PACKT_SIZE 8192 /* number of bytes we send in one UDP datagram (OS X only) */
+#define DEFAULT_PORT 8000 /* default network port number */
+
+#ifdef _WIN32
+#ifndef HAVE_INT32_T
+typedef int int32_t;
+#define HAVE_INT32_T
+#endif
+#ifndef HAVE_INT16_T
+typedef short int16_t;
+#define HAVE_INT16_T
+#endif
+#ifndef HAVE_U_INT32_T
+typedef unsigned int u_int32_t;
+#define HAVE_U_INT32_T
+#endif
+#ifndef HAVE_U_INT16_T
+typedef unsigned short u_int16_t;
+#define HAVE_U_INT16_T
+#endif
+#endif
+
+#ifndef CLIP
+#define CLIP(a, lo, hi) ( (a)>(lo)?( (a)<(hi)?(a):(hi) ):(lo) )
+#endif
+
+
+/* swap 32bit t_float. Is there a better way to do that???? */
+#ifdef _WIN32
+__inline static float netsend_float(float f)
+#else
+inline static float netsend_float(float f)
+#endif
+{
+ union
+ {
+ float f;
+ unsigned char b[4];
+ } dat1, dat2;
+
+ dat1.f = f;
+ dat2.b[0] = dat1.b[3];
+ dat2.b[1] = dat1.b[2];
+ dat2.b[2] = dat1.b[1];
+ dat2.b[3] = dat1.b[0];
+ return dat2.f;
+}
+
+/* swap 32bit long int */
+#ifdef _WIN32
+__inline static long netsend_long(long n)
+#else
+inline static long netsend_long(long n)
+#endif
+{
+ return (((n & 0xff) << 24) | ((n & 0xff00) << 8) |
+ ((n & 0xff0000) >> 8) | ((n & 0xff000000) >> 24));
+}
+
+/* swap 16bit short int */
+#ifdef _WIN32
+__inline static long netsend_short(long n)
+#else
+inline static short netsend_short(short n)
+#endif
+{
+ return (((n & 0xff) << 8) | ((n & 0xff00) >> 8));
+}
+
+
+/* format specific stuff */
+
+#define SF_FLOAT 1
+#define SF_DOUBLE 2 /* not implemented */
+#define SF_8BIT 10
+#define SF_16BIT 11
+#define SF_32BIT 12 /* not implemented */
+#define SF_ALAW 20 /* not implemented */
+#define SF_MP3 30 /* not implemented */
+#define SF_AAC 31 /* AAC encoding using FAAC */
+#define SF_VORBIS 40 /* not implemented */
+#define SF_FLAC 50 /* not implemented */
+
+#define SF_SIZEOF(a) (a == SF_FLOAT ? sizeof(t_float) : \
+ a == SF_16BIT ? sizeof(short) : 1)
+
+
+/* version / byte-endian specific stuff */
+
+#define SF_BYTE_LE 1 /* little endian */
+#define SF_BYTE_BE 2 /* big endian */
+
+#if defined(_WIN32) || defined(__linux__) || defined(IRIX)
+#define SF_BYTE_NATIVE SF_BYTE_LE
+#else /* must be __APPLE__ */
+#define SF_BYTE_NATIVE SF_BYTE_BE
+#endif
+
+typedef struct _tag
+{ /* size (bytes) */
+ char version; /* 1 */
+ char format; /* 1 */
+ long count; /* 4 */
+ char channels; /* 1 */
+ long framesize; /* 4 */
+ char extension[5]; /* 5 */
+} t_tag; /*--------------*/
+ /* 16 */
+
+typedef struct _frame
+{
+ t_tag tag;
+ char *data;
+} t_frame;
+
+/* fin udpsend~.h */
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