Adding upstream version 14.2.upstream/14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 204 insertions, 0 deletions

diff --git a/src/pulsecore/esound.h b/src/pulsecore/esound.h
new file mode 100644
index 0000000..4ca0e04
--- /dev/null
+++ b/src/pulsecore/esound.h
@@ -0,0 +1,204 @@
+#ifndef fooesoundhfoo
+#define fooesoundhfoo
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+
+  PulseAudio 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 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+/* 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 authentication 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 initial 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 immediately */
+
+    /* 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 complete request */
+    ESD_NEXT_REQUEST,           /* proceed to next request */
+    ESD_CLIENT_STATE_MAX        /* place holder */
+};
+typedef int esd_client_state_t;
+
+/* 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 (PA_UINT32_SWAP(ESD_ENDIAN_KEY))
+
+#endif