diff options
Diffstat (limited to 'src/esound.h')
| -rw-r--r-- | src/esound.h | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/src/esound.h b/src/esound.h deleted file mode 100644 index 01a2962f..00000000 --- a/src/esound.h +++ /dev/null @@ -1,213 +0,0 @@ -#ifndef fooesoundhfoo -#define fooesoundhfoo - -/* $Id$ */ - -/*** - This file is part of polypaudio. - - polypaudio 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. - - polypaudio 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 polypaudio; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -/* Most of the following is blatantly stolen from esound. */ - - -/* path and name of the default EsounD domain socket */ -#define ESD_UNIX_SOCKET_DIR "/tmp/.esd" -#define ESD_UNIX_SOCKET_NAME "/tmp/.esd/socket" - -/* length of the audio buffer size */ -#define ESD_BUF_SIZE (4 * 1024) -/* maximum size we can write(). Otherwise we might overflow */ -#define ESD_MAX_WRITE_SIZE (21 * 4096) - -/* length of the authorization key, octets */ -#define ESD_KEY_LEN (16) - -/* default port for the EsounD server */ -#define ESD_DEFAULT_PORT (16001) - -/* default sample rate for the EsounD server */ -#define ESD_DEFAULT_RATE (44100) - -/* maximum length of a stream/sample name */ -#define ESD_NAME_MAX (128) - -/* a magic number to identify the relative endianness of a client */ -#define ESD_ENDIAN_KEY ((uint32_t) (('E' << 24) + ('N' << 16) + ('D' << 8) + ('N'))) - -#define ESD_VOLUME_BASE (256) - - -/*************************************/ -/* what can we do to/with the EsounD */ -enum esd_proto { - ESD_PROTO_CONNECT, /* implied on inital client connection */ - - /* pseudo "security" functionality */ - ESD_PROTO_LOCK, /* disable "foreign" client connections */ - ESD_PROTO_UNLOCK, /* enable "foreign" client connections */ - - /* stream functionality: play, record, monitor */ - ESD_PROTO_STREAM_PLAY, /* play all following data as a stream */ - ESD_PROTO_STREAM_REC, /* record data from card as a stream */ - ESD_PROTO_STREAM_MON, /* send mixed buffer output as a stream */ - - /* sample functionality: cache, free, play, loop, EOL, kill */ - ESD_PROTO_SAMPLE_CACHE, /* cache a sample in the server */ - ESD_PROTO_SAMPLE_FREE, /* release a sample in the server */ - ESD_PROTO_SAMPLE_PLAY, /* play a cached sample */ - ESD_PROTO_SAMPLE_LOOP, /* loop a cached sample, til eoloop */ - ESD_PROTO_SAMPLE_STOP, /* stop a looping sample when done */ - ESD_PROTO_SAMPLE_KILL, /* stop the looping sample immed. */ - - /* free and reclaim /dev/dsp functionality */ - ESD_PROTO_STANDBY, /* release /dev/dsp and ignore all data */ - ESD_PROTO_RESUME, /* reclaim /dev/dsp and play sounds again */ - - /* TODO: move these to a more logical place. NOTE: will break the protocol */ - ESD_PROTO_SAMPLE_GETID, /* get the ID for an already-cached sample */ - ESD_PROTO_STREAM_FILT, /* filter mixed buffer output as a stream */ - - /* esd remote management */ - ESD_PROTO_SERVER_INFO, /* get server info (ver, sample rate, format) */ - ESD_PROTO_ALL_INFO, /* get all info (server info, players, samples) */ - ESD_PROTO_SUBSCRIBE, /* track new and removed players and samples */ - ESD_PROTO_UNSUBSCRIBE, /* stop tracking updates */ - - /* esd remote control */ - ESD_PROTO_STREAM_PAN, /* set stream panning */ - ESD_PROTO_SAMPLE_PAN, /* set default sample panning */ - - /* esd status */ - ESD_PROTO_STANDBY_MODE, /* see if server is in standby, autostandby, etc */ - - /* esd latency */ - ESD_PROTO_LATENCY, /* retrieve latency between write()'s and output */ - - ESD_PROTO_MAX /* for bounds checking */ -}; - -/******************/ -/* The EsounD api */ - -/* the properties of a sound buffer are logically or'd */ - -/* bits of stream/sample data */ -#define ESD_MASK_BITS ( 0x000F ) -#define ESD_BITS8 ( 0x0000 ) -#define ESD_BITS16 ( 0x0001 ) - -/* how many interleaved channels of data */ -#define ESD_MASK_CHAN ( 0x00F0 ) -#define ESD_MONO ( 0x0010 ) -#define ESD_STEREO ( 0x0020 ) - -/* whether it's a stream or a sample */ -#define ESD_MASK_MODE ( 0x0F00 ) -#define ESD_STREAM ( 0x0000 ) -#define ESD_SAMPLE ( 0x0100 ) -#define ESD_ADPCM ( 0x0200 ) /* TODO: anyone up for this? =P */ - -/* the function of the stream/sample, and common functions */ -#define ESD_MASK_FUNC ( 0xF000 ) -#define ESD_PLAY ( 0x1000 ) -/* functions for streams only */ -#define ESD_MONITOR ( 0x0000 ) -#define ESD_RECORD ( 0x2000 ) -/* functions for samples only */ -#define ESD_STOP ( 0x0000 ) -#define ESD_LOOP ( 0x2000 ) - -typedef int esd_format_t; -typedef int esd_proto_t; - -/*******************************************************************/ -/* esdmgr.c - functions to implement a "sound manager" for esd */ - -/* structures to retrieve information about streams/samples from the server */ -typedef struct esd_server_info { - - int version; /* server version encoded as an int */ - esd_format_t format; /* magic int with the format info */ - int rate; /* sample rate */ - -} esd_server_info_t; - -typedef struct esd_player_info { - - struct esd_player_info *next; /* point to next entry in list */ - esd_server_info_t *server; /* the server that contains this stream */ - - int source_id; /* either a stream fd or sample id */ - char name[ ESD_NAME_MAX ]; /* name of stream for remote control */ - int rate; /* sample rate */ - int left_vol_scale; /* volume scaling */ - int right_vol_scale; - - esd_format_t format; /* magic int with the format info */ - -} esd_player_info_t; - -typedef struct esd_sample_info { - - struct esd_sample_info *next; /* point to next entry in list */ - esd_server_info_t *server; /* the server that contains this sample */ - - int sample_id; /* either a stream fd or sample id */ - char name[ ESD_NAME_MAX ]; /* name of stream for remote control */ - int rate; /* sample rate */ - int left_vol_scale; /* volume scaling */ - int right_vol_scale; - - esd_format_t format; /* magic int with the format info */ - int length; /* total buffer length */ - -} esd_sample_info_t; - -typedef struct esd_info { - - esd_server_info_t *server; - esd_player_info_t *player_list; - esd_sample_info_t *sample_list; - -} esd_info_t; - -enum esd_standby_mode { - ESM_ERROR, ESM_ON_STANDBY, ESM_ON_AUTOSTANDBY, ESM_RUNNING -}; -typedef int esd_standby_mode_t; - -enum esd_client_state { - ESD_STREAMING_DATA, /* data from here on is streamed data */ - ESD_CACHING_SAMPLE, /* midway through caching a sample */ - ESD_NEEDS_REQDATA, /* more data needed to complere request */ - ESD_NEXT_REQUEST, /* proceed to next request */ - ESD_CLIENT_STATE_MAX /* place holder */ -}; -typedef int esd_client_state_t; - -/* switch endian order for cross platform playing */ -#define swap_endian_32(x) ((x >> 24) | ((x >> 8) & 0xFF00) | (((x & 0xFF00) << 8)) | (x << 24)) -#define maybe_swap_endian_32(c,x) ((c) ? swap_endian_32(x) : x) - -/* the endian key is transferred in binary, if it's read into int, */ -/* and matches ESD_ENDIAN_KEY (ENDN), then the endianness of the */ -/* server and the client match; if it's SWAP_ENDIAN_KEY, swap data */ -#define ESD_SWAP_ENDIAN_KEY ((uint32_t) swap_endian_32(ESD_ENDIAN_KEY)) - - -#endif |