source: roaraudio/roarclients/roarctl.c @ 3615:b31c725ad76d

//roarctl.c:

/*
 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008
 *
 *  This file is part of roarclients a part of RoarAudio,
 *  a cross-platform sound system for both, home and professional use.
 *  See README for details.
 *
 *  This file is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 3
 *  as published by the Free Software Foundation.
 *
 *  RoarAudio 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 software; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 *
 */

#define _UNITS_T_BASE_USEC

#include <roaraudio.h>
#include <roaraudio/units.h>
#include <libroardsp/libroardsp.h>

#if defined(ROAR_HAVE_SETGID) && defined(ROAR_HAVE_SETUID)
#define _POSIX_USERS
#endif

#ifdef _POSIX_USERS
#include <pwd.h>
#include <grp.h>
#endif

#include <sys/time.h>
#include <time.h>

#ifdef ROAR_HAVE_LIBM
#include <math.h>
#endif

int g_verbose = 0;

int display_mixer (struct roar_connection * con, int stream);
int show_meta_all (struct roar_connection * con, int id);

void usage (void) {
 printf("roarctl [OPTIONS]... COMMAND [OPTS] [COMMAND [OPTS] [COMMAND [OPTS] [...]]]\n");

 printf("\nOptions:\n\n");

 printf("  --server SERVER         - Set server hostname\n"
        "  --help                  - Show this help\n"
        "  --verbose   -v          - Show verbose output\n"
       );

 printf("\nCommands:\n\n");
 printf(
        "  help                    - Show this help\n"
        "  sleep TIME              - Sleeps for TIME seconds\n"
#ifdef ROAR_HAVE_GETTIMEOFDAY
        "  ping  NUM               - Do NUM pings using NOOP commands\n"
#endif
        "  whoami                  - Get own client ID\n"
        "\n"
        "  standby, off            - Go into standby mode\n"
        "  resume, on              - Go into active mode\n"
        "  standbymode             - Show current standby mode\n"
        "  exit                    - Quits the roard (must be used as last command)\n"
        "  terminate               - Like exit but let the server up to serve still connected clients,\n"
        "                            new clients cann't connect and the server terminates after the last\n"
        "                            client disconnected\n"
        "\n"
        "  volume ID CHAN [scale S] V0 V1...\n"
        "                          - Sets volume for stream ID\n"
        "                            CHAN is the number of channels or 'mono' or 'stereo'\n"
        "                            if mono or stereo is chosen roarctl trys to set\n"
        "                            sensfull values for all channels even if the output\n"
        "                            is has more channels.\n"
        "                            An optional scale can be given using S.\n"
        "                            all other args are the volumes of the channels\n"
        "                            you may use integer or percent values.\n"
        "                            percent values can flooding points.\n"
        "\n"
        "  flag   ID FLAGS         - Sets flags FLAGS on stream ID. FLAGS may be a comma\n"
        "                            seperated list of flags.\n"
        "  unflag ID FLAGS         - Unsets flags on a stream. See flag.\n"
        "\n"
        "  kick TYPE ID            - Kicks object of TYPE with id ID\n"
        "                            Types: client stream sample source\n"
        "  newvirtual P D E R B C  - Adds a new virtual (child) stream\n"
        "                            Parameters:\n"
        "                             P: Parent stream ID, D: Direction,\n"
        "                             E: codEc, R: sample Rate,\n"
        "                             B: bits per sample, C: nummer of channels\n"
        "\n"
        "  metaget  ID TYPE        - Read meta date of type TYPE from stream ID\n"
// TODO: document metaset here.
        "  metasave ID FILE        - Saves meta data of stream ID to file FILE\n"
        "  metaload ID FILE        - Loads meta data from file FILE and set it on stream ID\n"
        "\n"
        "  serveroinfo             - Gets Informations about server output\n"
        "  listclients             - Gets Informations about clients\n"
        "  liststreams             - Gets Informations about streams\n"
        "  allinfo                 - Get all infos\n"
       );
}

#ifdef ROAR_HAVE_GETTIMEOFDAY
int ping (struct roar_connection * con, int num) {
 struct timeval         try, ans;
 struct roar_message    m;
 register int           ret;
 int                    i;
 double                 cur, min = 3600*1000, max = 0, sum = 0;

 if ( num == 0 )
  return 0;

 for (i = 0; i < num; i++) {
  m.cmd = ROAR_CMD_NOOP;
  m.datalen = 0;

  gettimeofday(&try, NULL);
  ret = roar_req(con, &m, NULL);
  gettimeofday(&ans, NULL);

  if ( ret == -1 )
   return -1;

  while (ans.tv_sec > try.tv_sec) {
   ans.tv_sec--;
   ans.tv_usec += 1000000;
  }
  ans.tv_usec -= try.tv_usec;

  printf("Pong from server: seq=%i time=%.3fms\n", i, (cur = ans.tv_usec/1000.0));

  sum += cur;
  if ( min > cur )
   min = cur;
  if ( cur > max )
   max = cur;

  if ( i != (num - 1) )
   sleep(1);
 }

 printf("\n--- ping statistics ---\n");
 printf("%i packets transmitted\n", i);
 printf("rtt min/avg/max = %.3f/%.3f/%.3f ms\n", min, sum/(double)i, max);

 return 0;
}
#endif

void server_oinfo (struct roar_connection * con) {
 struct roar_stream s;

 if ( roar_server_oinfo(con, &s) == -1 ) {
  fprintf(stderr, "Error: can not get server output info\n");
  return;
 }

 printf("Stream direction      : %s\n", roar_dir2str(s.dir));
 printf("Server Output rate    : %i\n", s.info.rate);
 printf("Server Output bits    : %i\n", s.info.bits);
 printf("Server Output channels: %i\n", s.info.channels);
 printf("Server Output codec   : %i (%s%s)\n", s.info.codec, roar_codec2str(s.info.codec),
                                     s.info.codec == ROAR_CODEC_DEFAULT ? " native" : "");
// printf("Server Output rate: %i", s.info.rate);
  if ( g_verbose > 1 )
   printf("Server Position       : %lu S (%.3fs)\n", (unsigned long int) s.pos, (float)s.pos/(s.info.rate*s.info.channels));
}

const char * proc_name (pid_t pid) {
 static char ret[80] = "?";
#ifdef __linux__
 char file[80], buf[80], *r;
 int  i;

 snprintf(file, 79, "/proc/%i/exe", pid);
 file[79] = 0;

 ret[0] = '?';
 ret[1] = 0;

 if ( (i = readlink(file, buf, 79)) != -1 ) {
  buf[i] = 0;
  if ( (r = strrchr(buf, '/')) != NULL ) {
   r++;
   if ( *r != 0 )
    strcpy(ret, r);
  }
 }
#endif

 return ret;
}

void list_clients (struct roar_connection * con) {
 int i;
 int num;
 int h;
 int id[ROAR_CLIENTS_MAX];
 char tmp[80];
 int self_id;
 struct roar_client self_client;
 struct roar_client c;
#ifdef _POSIX_USERS
 struct group  * grp = NULL;
 struct passwd * pwd = NULL;
#endif

 if ( (self_id = roar_get_clientid(con)) != -1 ) {
  if ( roar_get_client(con, &self_client, self_id) == -1 )
   self_id = -1;
 }

 if ( (num = roar_list_clients(con, id, ROAR_CLIENTS_MAX)) == -1 ) {
  fprintf(stderr, "Error: can not get client list\n");
  return;
 }

 for (i = 0; i < num; i++) {
  printf("client %i:\n", id[i]);
  if ( roar_get_client(con, &c, id[i]) == -1 ) {
   fprintf(stderr, "Error: can not get client info\n");
   continue;
  }
  printf("Client name           : %s\n", c.name);

  if ( roar_nnode_get_socktype(&(c.nnode)) != ROAR_SOCKET_TYPE_UNKNOWN ) {
   if ( roar_nnode_to_str(&(c.nnode), tmp, 80) == 0 ) {
    printf("Client network node   : %s\n", tmp);
   }
  }

  if ( self_id != -1 && roar_nnode_cmp(&(self_client.nnode), &(c.nnode)) == 0 ) {
   printf("Client PID            : %i(%s)\n", c.pid, proc_name(c.pid));
  } else { 
   printf("Client PID            : %i\n", c.pid);
  }
  if ( c.uid != -1 ) {
#ifdef _POSIX_USERS
   if ( self_id != -1 && roar_nnode_cmp(&(self_client.nnode), &(c.nnode)) == 0 ) {
    pwd = getpwuid(c.uid);
    grp = getgrgid(c.gid);
    printf("Client UID/GID        : %i(%s)/%i(%s)\n", c.uid, pwd ? pwd->pw_name : "?", c.gid, grp ? grp->gr_name : "?");
   } else {
#else
   if ( 1 ) {
#endif
    printf("Client UID/GID        : %i/%i\n", c.uid, c.gid);
   }
  }

  if ( g_verbose && c.proto != ROAR_PROTO_NONE ) {
   printf("Client Protocol       : %s\n", roar_proto2str(c.proto));
  }

  if ( g_verbose && c.byteorder != ROAR_BYTEORDER_UNKNOWN ) {
   if ( c.byteorder == ROAR_BYTEORDER_NETWORK ) {
    strcpy(tmp, " (network byteorder");
   } else {
    *tmp = 0;
   }

   if ( c.byteorder == ROAR_BYTEORDER_NATIVE ) {
    if ( *tmp ) {
     strcat(tmp, ", native");
    } else {
     strcpy(tmp, " (native");
    }
   }

   if ( *tmp )
    strcat(tmp, ")");

   printf("Client Byteorder      : %s%s\n", roar_byteorder2str(c.byteorder), tmp);
  }

  if ( c.execed != -1 )
   printf("Execed stream         : %i\n", c.execed);

  for (h = 0; h < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; h++)
   if ( c.streams[h] != -1 )
    printf("stream                : %i\n", c.streams[h]);
 }

}

void list_streams (struct roar_connection * con) {
 int i;
 int num;
 int id[ROAR_STREAMS_MAX];
 char chanmap[ROAR_MAX_CHANNELS];
 struct roar_stream s;
 struct roar_stream_info info;
 char buffer[1024];
 char * flags = buffer;
 char * name  = buffer;
 char * infotext;
 size_t len;


 if ( (num = roar_list_streams(con, id, ROAR_STREAMS_MAX)) == -1 ) {
  fprintf(stderr, "Error: can not get stream list\n");
  return;
 }

 for (i = 0; i < num; i++) {
  printf("stream %i:\n", id[i]);
  if ( roar_get_stream(con, &s, id[i]) == -1 ) {
   fprintf(stderr, "Error: can not get stream info\n");
   continue;
  }
  printf("Stream direction      : %s\n", roar_dir2str(s.dir));

  if ( roar_stream_get_name(con, &s, name, 1024) == 0 )
   printf("Stream name           : %s\n", name);

  if ( s.pos_rel_id == -1 ) {
   printf("Relativ position id   : none (stream not synchronized)\n");
  } else if ( s.pos_rel_id == id[i] ) {
   printf("Relativ position id   : %i (self synchronized)\n", s.pos_rel_id);
  } else {
   printf("Relativ position id   : %i (synchronized)\n", s.pos_rel_id);
  }
  if ( g_verbose > 1 ) {
   if ( s.info.rate && s.info.channels ) {
    printf("Position              : %lu S (%.3fs)\n", (unsigned long int) s.pos,
                                    (float)s.pos/(s.info.rate*s.info.channels));
   } else {
    printf("Position              : %lu S\n", (unsigned long int) s.pos);
   }
  }

  switch (s.dir) {
   case ROAR_DIR_MIDI_IN:
   case ROAR_DIR_MIDI_OUT:
     infotext = " ticks/s";
    break;
   case ROAR_DIR_LIGHT_IN:
   case ROAR_DIR_LIGHT_OUT:
     infotext = " updates/s";
    break;
   default:
     infotext = " Hz";
  }
  if ( s.info.rate )
   printf("Stream sample rate    : %i%s\n", s.info.rate, infotext);
  if ( s.info.bits )
   printf("Stream bits           : %i\n", s.info.bits);
  if ( s.info.channels )
  printf("Stream channels       : %i\n", s.info.channels);

  printf("Stream codec          : %2i (%s%s)\n", s.info.codec, roar_codec2str(s.info.codec),
                                       s.info.codec == ROAR_CODEC_DEFAULT ? " native" : "");
  if ( roar_stream_get_info(con, &s, &info) != -1 ) {
   if ( info.codec != s.info.codec ) {
    printf("Streamed codec        : %2i (%s%s)\n", info.codec, roar_codec2str(info.codec),
                                       info.codec == ROAR_CODEC_DEFAULT ? " native" : "");
   }

   if ( g_verbose ) {
    if ( info.block_size )
     printf("Stream block size     : %i Byte\n", info.block_size);

    printf("Underruns pre/post    : %i/%i\n",   info.pre_underruns, info.post_underruns);
    if ( g_verbose > 1 )
     printf("Stream delay          : %ims (%.2fm)\n",   (int)info.delay/1000, (info.delay*(float)_SPEED_OF_SOUND));

    if ( g_verbose > 1 )
     printf("Stream mixer          : %i\n",   info.mixer);

    if ( g_verbose > 1 )
     printf("Stream state          : %s\n",   roar_streamstate2str(info.state));

    *flags = 0;
    if ( info.flags & ROAR_FLAG_PRIMARY )
     strcat(flags, "primary ");
    if ( info.flags & ROAR_FLAG_SYNC )
     strcat(flags, "sync ");
    if ( info.flags & ROAR_FLAG_OUTPUT )
     strcat(flags, "output ");
    if ( info.flags & ROAR_FLAG_SOURCE )
     strcat(flags, "source ");
    if ( info.flags & ROAR_FLAG_META )
     strcat(flags, "meta ");
    if ( info.flags & ROAR_FLAG_AUTOCONF )
     strcat(flags, "autoconf ");
    if ( info.flags & ROAR_FLAG_CLEANMETA )
     strcat(flags, "cleanmeta ");
    if ( info.flags & ROAR_FLAG_HWMIXER )
     strcat(flags, "hwmixer ");
    if ( info.flags & ROAR_FLAG_PAUSE )
     strcat(flags, "pause ");
    if ( info.flags & ROAR_FLAG_MUTE )
     strcat(flags, "mute ");
    if ( info.flags & ROAR_FLAG_MMAP )
     strcat(flags, "mmap ");
    if ( info.flags & ROAR_FLAG_ANTIECHO )
     strcat(flags, "antiecho ");
    if ( info.flags & ROAR_FLAG_VIRTUAL )
     strcat(flags, "virtual ");
    if ( info.flags & ROAR_FLAG_RECSOURCE )
     strcat(flags, "recsource ");
    if ( info.flags & ROAR_FLAG_PASSMIXER )
     strcat(flags, "passmixer ");
    if ( info.flags & ROAR_FLAG_PRETHRU )
     strcat(flags, "prethru ");
    if ( info.flags & ROAR_FLAG_IMMUTABLE )
     strcat(flags, "immutable ");
    if ( info.flags & ROAR_FLAG_ENHANCE )
     strcat(flags, "enhance ");

    printf("Flags                 : %s\n", flags);
   }
  }

  if ( g_verbose ) {
   len = ROAR_MAX_CHANNELS;
   if ( roar_stream_get_chanmap(con, &s, chanmap, &len) == -1 ) {
    fprintf(stderr, "Error: can not get stream channel map\n");
   } else {
    if ( roardsp_chanlist2str(chanmap, len, buffer, 1024) == -1 ) {
     fprintf(stderr, "Error: can not convert channel map into string\n");
    } else {
     printf("Channel Map           : %s\n", buffer);
    }
   }
  }

  if ( s.dir != ROAR_DIR_THRU ) {
   display_mixer(con, id[i]);
   show_meta_all(con, id[i]);
  }
 }

}

int display_mixer (struct roar_connection * con, int stream) {
 struct roar_mixer_settings mixer;
 int channels;
 int i;
 float fs;

 if ( roar_get_vol(con, stream, &mixer, &channels) == -1 ) {
  fprintf(stderr, "Error: can not get stream mixer info for stream %i\n", stream);
  return -1;
 }

#ifdef ROAR_HAVE_LIBM
#define _DB ", %.2fdB"
#else
#define _DB ""
#endif

 fs = (float)mixer.scale / 100.;

 if ( channels ) { // we hide RPG info for zero-channel streams
  printf("Mixer ReplayGain      : %i/%i (%.2f%%" _DB ")\n", mixer.rpg_mul, mixer.rpg_div,
                                                          100.*(float)mixer.rpg_mul/((float)mixer.rpg_div)
#ifdef ROAR_HAVE_LIBM
                           , 20*log10f((float)mixer.rpg_mul/(float)mixer.rpg_div)
#endif
        );
 }

 for (i = 0; i < channels; i++)
  printf("Mixer volume chan %2i  : %i/%i (%.2f%%" _DB ")\n", i, mixer.mixer[i], mixer.scale,
                           (float)mixer.mixer[i]/fs
#ifdef ROAR_HAVE_LIBM
                          , 20*log10f((float)mixer.mixer[i]/(float)mixer.scale)
#endif
        );

 return 0;
}

static unsigned int set_mixer_parse_volume (char * k, int len, uint16_t scale) {
 float fs = scale;

 switch (k[len - 1]) {
  case '%':
    k[len - 1] = 0;
    return (atof(k)*fs)/100.;
   break;
#ifdef ROAR_HAVE_LIBM
  case 'b':
  case 'B':
    // TODO: can we hanle the error better?
    if ( len < 2 )
     return 0;

    k[len - 2] = 0;
    return powf(10, atof(k)/20.f)*fs;
   break;
#endif
 }

 return atoi(k);
}

int set_mixer (struct roar_connection * con, int * cur, int max, char * arg[]) {
 uint16_t scale = 65535;
 int chans = 0;
 int id;
 int i;
 int len;
 int old_chans;
 int vol_l, vol_r, vol_mono;
 char * k;
 struct roar_mixer_settings mixer;
 struct roar_mixer_settings old_mixer;

 if (*cur + 2 > max)
  return -1;

 id = atoi(arg[++(*cur)]);

 k = arg[++(*cur)];

 if ( roar_get_vol(con, id, &old_mixer, &old_chans) == -1 ) {
  fprintf(stderr, "Error: can not get stream mixer info for stream %i\n", id);
  return -1;
 }

 if ( !strcmp(arg[*cur + 1], "scale") ) {
  (*cur)++; // 'scale'
  (*cur)++;
  scale = set_mixer_parse_volume(arg[*cur], strlen(arg[*cur]), 65535);
 }

// TODO: clean up code here as the % vs. abs code is very duplicate...

 if ( strcmp(k, "mono") == 0 && old_chans != 1 ) {
  chans = 1;

  if ( *cur + 1 > max )
   return -1;

  k   = arg[++(*cur)];
  len = strlen(k);

  vol_mono = set_mixer_parse_volume(k, len, scale);

  for (i = 0; i < old_chans; i++)
   mixer.mixer[i] = vol_mono;

  chans = old_chans;

 } else if ( strcmp(k, "stereo") == 0 && old_chans != 2 ) {
  chans = old_chans;

  if ( *cur + 2 > max )
   return -1;

  k   = arg[++(*cur)];
  len = strlen(k);

  vol_l = set_mixer_parse_volume(k, len, scale);

  k   = arg[++(*cur)];
  len = strlen(k);

  vol_r = set_mixer_parse_volume(k, len, scale);

  vol_mono = (vol_l + vol_r) / 2;

  mixer.mixer[0] = vol_l;
  mixer.mixer[1] = vol_r;

  switch (chans) {
   case 1:
     mixer.mixer[0] = vol_mono;
    break;
//   case 2: classic stereo...
   case 3:
     mixer.mixer[2] = vol_mono;
    break;
   case 4:
     mixer.mixer[2] = vol_l;
     mixer.mixer[3] = vol_r;
    break;
   case 5:
     mixer.mixer[2] = vol_mono;
     mixer.mixer[3] = vol_l;
     mixer.mixer[4] = vol_r;
    break;
   case 6:
     mixer.mixer[2] = vol_mono;
     mixer.mixer[3] = vol_mono;
     mixer.mixer[4] = vol_l;
     mixer.mixer[5] = vol_r;
    break;
   default:
     ROAR_ERR("mode stereo not supported on stream with %i channels", chans);
     return -1;
    break;
  }

 } else {
  if ( strcmp(k, "mono") == 0 ) {
   chans = 1;
  } else if ( strcmp(k, "stereo") == 0 ) {
   chans = 2;
  } else {
   chans = atoi(k);
  }

//  printf("mode: int; chans=%i, old_chans=%i\n", chans, old_chans);

  if ( *cur + chans > max )
   return -1;

  for (i = 0; i < chans; i++) {
   k   = arg[++(*cur)];
   len = strlen(k);

   mixer.mixer[i] = set_mixer_parse_volume(k, len, scale);
  }
 }

 mixer.scale = scale;

 return roar_set_vol(con, id, &mixer, chans);
}


int newvirtual (struct roar_connection * con, char *p_s, char *d_s, char *e_s, char *r_s, char *b_s, char *c_s) {
 struct roar_stream s;
 int dir    = roar_str2dir(d_s);
 int parent = atoi(p_s);

 ROAR_DBG("newvirtual(*): dir=%i, parent=%i", dir, parent);

 if ( roar_stream_new(&s, atoi(r_s), atoi(c_s), atoi(b_s), roar_str2codec(e_s)) == -1 )
  return -1;

 return roar_simple_connect_virtual(con, &s, parent, dir);
}

int set_meta (struct roar_connection * con, int id, char * mode, char * type, char * val) {
 struct roar_meta   meta;
 struct roar_stream s;
 int mode_i = ROAR_META_MODE_SET;

 if ( roar_stream_new_by_id(&s, id) == -1 )
  return -1;

// printf("set_meta(*): mode='%s', type='%s', val='%s'\n", mode, type, val);

 if ( strcmp(mode, "add") == 0 ) {
  mode_i = ROAR_META_MODE_ADD;
 }

 meta.type   = roar_meta_inttype(type);
 meta.value  = val;
 meta.key[0] = 0;

 if ( meta.type == -1 ) {
  fprintf(stderr, "Error: unknown type: %s\n", type);
  return -1;
 }

// printf("D: type=%i, mode=%i\n", meta.type, mode_i);

 if ( roar_stream_meta_set(con, &s, mode_i, &meta) == -1 )
  return -1;

 meta.type  = ROAR_META_TYPE_NONE;
 meta.value = NULL;

 return roar_stream_meta_set(con, &s, ROAR_META_MODE_FINALIZE, &meta);
}

int load_meta (struct roar_connection * con, int id, char * file) {
 struct roar_meta   meta;
 struct roar_stream s;
 int mode_i = ROAR_META_MODE_SET;
 FILE * in;
 char lion[1024];
 char * v;

 if ( roar_stream_new_by_id(&s, id) == -1 )
  return -1;

 if ( (in = fopen(file, "r")) == NULL )
  return -1;

 while (fgets(lion, 1024, in) != NULL) {
  if ( (v = strtok(lion, "\r\n")) != NULL )
   if ( (v = strtok(NULL, "\r\n")) != NULL )
    *(v-1) = 0;

  if ( (v = strstr(lion, "=")) == NULL ) {
   fprintf(stderr, "Error: can not parse meta data lion: %s\n", lion);
   continue;
  }

  *v++ = 0;

  meta.type   = roar_meta_inttype(lion);
  meta.value  = v;
  meta.key[0] = 0;

  if ( meta.type == -1 ) {
   fprintf(stderr, "Error: unknown type: %s\n", lion);
   continue;
  }

  if ( roar_stream_meta_set(con, &s, mode_i, &meta) == -1 )
   return -1;
 }

 fclose(in);

 meta.type  = ROAR_META_TYPE_NONE;
 meta.value = NULL;

 return roar_stream_meta_set(con, &s, ROAR_META_MODE_FINALIZE, &meta);
}

int show_meta_type (struct roar_connection * con, int id, char * type) {
 struct roar_meta   meta;
 struct roar_stream s;

 if ( roar_stream_new_by_id(&s, id) == -1 )
  return -1;

 meta.type  = roar_meta_inttype(type);

 if ( meta.type == -1 ) {
  fprintf(stderr, "Error: unknown type: %s\n", type);
  return -1;
 }

 if ( roar_stream_meta_get(con, &s, &meta) == -1 )
  return -1;

 printf("Meta %-17s: %s\n", roar_meta_strtype(meta.type), meta.value);

 roar_meta_free(&meta);

 return 0;
}

int show_meta_all (struct roar_connection * con, int id) {
 struct roar_stream s;
 int types[ROAR_META_MAX_PER_STREAM];
 int i;
 int len;

 if ( roar_stream_new_by_id(&s, id) == -1 )
  return -1;

 if ( (len = roar_stream_meta_list(con, &s, types, ROAR_META_MAX_PER_STREAM)) == -1 )
  return -1;

 for (i = 0; i < len; i++)
  show_meta_type(con, id, roar_meta_strtype(types[i]));

 return 0;
}

int save_meta (struct roar_connection * con, int id, char * file) {
 struct roar_stream s;
 struct roar_meta   meta;
 int types[ROAR_META_MAX_PER_STREAM];
 int i;
 int len;
 FILE * out;

 if ( roar_stream_new_by_id(&s, id) == -1 )
  return -1;

 if ( (out = fopen(file, "w")) == NULL )
  return -1;

 if ( (len = roar_stream_meta_list(con, &s, types, ROAR_META_MAX_PER_STREAM)) == -1 )
  return -1;

 for (i = 0; i < len; i++) {
/*
  show_meta_type(con, id, roar_meta_strtype(types[i]));
*/
  meta.type  = types[i];

  if ( roar_stream_meta_get(con, &s, &meta) == -1 )
   continue;

//  printf("Meta %-17s: %s\n", roar_meta_strtype(meta.type), meta.value);

  fprintf(out, "%s=%s\n", roar_meta_strtype(meta.type), meta.value);

  roar_meta_free(&meta);
 }

 fclose(out);

 return 0;
}

int set_flags (struct roar_connection * con, int id, int reset, char * flags) {
 int f = ROAR_FLAG_NONE;
 char * c;
 struct roar_stream s[1];

 if ( roar_stream_new_by_id(s, id) == -1 )
  return -1;

 c = strtok(flags, ",");
 while (c != NULL) {
  if ( !strcmp(c, "meta") ) {
   f |= ROAR_FLAG_META;
  } else if ( !strcmp(c, "primary") ) {
   f |= ROAR_FLAG_PRIMARY;
  } else if ( !strcmp(c, "sync") ) {
   f |= ROAR_FLAG_SYNC;
  } else if ( !strcmp(c, "cleanmeta") ) {
   f |= ROAR_FLAG_CLEANMETA;
  } else if ( !strcmp(c, "hwmixer") ) {
   f |= ROAR_FLAG_HWMIXER;
  } else if ( !strcmp(c, "pause") ) {
   f |= ROAR_FLAG_PAUSE;
  } else if ( !strcmp(c, "mute") ) {
   f |= ROAR_FLAG_MUTE;
  } else if ( !strcmp(c, "mmap") ) {
   f |= ROAR_FLAG_MMAP;
  } else if ( !strcmp(c, "antiecho") ) {
   f |= ROAR_FLAG_ANTIECHO;
  } else if ( !strcmp(c, "recsource") ) {
   f |= ROAR_FLAG_RECSOURCE;
  } else if ( !strcmp(c, "passmixer") ) {
   f |= ROAR_FLAG_PASSMIXER;
  } else if ( !strcmp(c, "virtual") ) {
   f |= ROAR_FLAG_VIRTUAL;
  } else if ( !strcmp(c, "prethru") ) {
   f |= ROAR_FLAG_PRETHRU;
  } else if ( !strcmp(c, "immutable") ) {
   f |= ROAR_FLAG_IMMUTABLE;
  } else if ( !strcmp(c, "enhance") ) {
   f |= ROAR_FLAG_ENHANCE;
  } else {
   fprintf(stderr, "Error: unknown flag: %s\n", c);
   return -1;
  }

  c = strtok(NULL, ",");
 }

 return roar_stream_set_flags(con, s, f, reset);
}

int main (int argc, char * argv[]) {
 struct roar_connection con;
 char * server   = NULL;
 char * k = NULL;
 int    i;
 int    t = 0;

 for (i = 1; i < argc; i++) {
  k = argv[i];

  if ( strcmp(k, "--server") == 0 ) {
   server = argv[++i];
  } else if ( strcmp(k, "-v") == 0 || strcmp(k, "--verbose") == 0 ) {
   g_verbose++;
  } else if ( strcmp(k, "--help") == 0 ) {
   usage();
   return 0;
  } else if ( *k == '-' ) {
   fprintf(stderr, "Error: unknown argument: %s\n", k);
   usage();
   return 1;
  } else {
   break;
  }
 }

 // connect

 if ( roar_simple_connect(&con, server, "roarctl") == -1 ) {
  fprintf(stderr, "Error: Can not connect to server\n");
  return 1;
 }

 if ( i == argc ) {
  fprintf(stderr, "Error: No Commands given\n");
  return 0; // this is not a fatal error...
 }

 for (; i < argc; i++) {
  k = argv[i];
  // cmd is in k

  printf("--- [ %s ] ---\n", k);

  if ( !strcmp(k, "help") ) {
   usage();

  } else if ( !strcmp(k, "sleep") ) {
   sleep(atoi(argv[++i]));

  } else if ( !strcmp(k, "ping") ) {
#ifdef ROAR_HAVE_GETTIMEOFDAY
   if ( ping(&con, atoi(argv[++i])) == -1 ) {
    fprintf(stderr, "Error: can not ping\n");
   }
#else
    fprintf(stderr, "Error: ping not supported.\n");
    i++;
#endif

  } else if ( !strcmp(k, "standby") || !strcmp(k, "off") ) {
   if ( roar_set_standby(&con, ROAR_STANDBY_ACTIVE) == -1 ) {
    fprintf(stderr, "Error: can not set mode to standby\n");
   } else {
    printf("going into standby\n");
   }
  } else if ( !strcmp(k, "resume") || !strcmp(k, "on") ) {
   if ( roar_set_standby(&con, ROAR_STANDBY_INACTIVE) == -1 ) {
    fprintf(stderr, "Error: can not set mode to active\n");
   } else {
    printf("going into active mode\n");
   }

  } else if ( !strcmp(k, "exit") ) {
   if ( roar_exit(&con) == -1 ) {
    fprintf(stderr, "Error: can not quit server\n");
   } else {
    printf("Server quited\n");
    break;
   }
  } else if ( !strcmp(k, "terminate") ) {
   if ( roar_terminate(&con, 1) == -1 ) {
    fprintf(stderr, "Error: can not terminate server\n");
   } else {
    printf("Server got asked to quited\n");
    break;
   }

  } else if ( !strcmp(k, "standbymode") ) {
   t = roar_get_standby(&con);
   if ( t == -1 ) {
    fprintf(stderr, "Error: can not get stanby mode\n");
   } else if ( t == ROAR_STANDBY_ACTIVE ) {
    printf("Server is in standby\n");
   } else if ( t == ROAR_STANDBY_INACTIVE ) {
    printf("Server is active\n");
   } else {
    fprintf(stderr, "Error: unknown standby mode: %i\n", t);
   }

  } else if ( !strcmp(k, "whoami") ) {
   printf("My client ID is: %i\n", roar_get_clientid(&con));
  } else if ( !strcmp(k, "serveroinfo") ) {
   server_oinfo(&con);
  } else if ( !strcmp(k, "listclients") ) {
   list_clients(&con);
  } else if ( !strcmp(k, "liststreams") ) {
   list_streams(&con);
  } else if ( !strcmp(k, "allinfo") ) {
   server_oinfo(&con);
   printf("\n");
   list_clients(&con);
   printf("\n");
   list_streams(&con);

  } else if ( !strcmp(k, "kick") ) {
   k = argv[++i];
   if ( !strcmp(k, "client") ) {
    t = ROAR_OT_CLIENT;
   } else if ( !strcmp(k, "stream") ) {
    t = ROAR_OT_STREAM;
   } else if ( !strcmp(k, "sample") ) {
    t = ROAR_OT_SAMPLE;
   } else if ( !strcmp(k, "source") ) {
    t = ROAR_OT_SOURCE;
   } else {
    fprintf(stderr, "Error: unknown type: %s\n", k);
    continue;
   }
   //t = atoi(argv[i++]);
   if ( roar_kick(&con, t, atoi(argv[++i])) == -1 ) {
    fprintf(stderr, "Error: can not kick %s\n", k);
   } else {
    printf("%s kicked\n", k);
   }

  } else if ( !strcmp(k, "newvirtual") ) {
   if ( newvirtual(&con, argv[i+1], argv[i+2], argv[i+3], argv[i+4], argv[i+5], argv[i+6]) == -1 ) {
    fprintf(stderr, "Error: can not create new virtual stream\n");
   } else {
    printf("virtual stream created\n");
   }
   i += 6;

  } else if ( !strcmp(k, "volume") ) {
   if ( set_mixer(&con, &i, argc, argv) == -1 ) {
    fprintf(stderr, "Error: can not set volume\n");
   } else {
    printf("volume changed\n");
   }

  } else if ( !strcmp(k, "flag") ) {
   i++;
   if ( set_flags(&con, atoi(argv[i]), ROAR_SET_FLAG, argv[i+1]) == -1 ) {
    fprintf(stderr, "Error: can not set flags\n");
   } else {
    printf("flags changed\n");
   }
   i++;
  } else if ( !strcmp(k, "unflag") ) {
   i++;
   if ( set_flags(&con, atoi(argv[i]), ROAR_RESET_FLAG, argv[i+1]) == -1 ) {
    fprintf(stderr, "Error: can not reset flags\n");
   } else {
    printf("flags changed\n");
   }
   i++;
  } else if ( !strcmp(k, "metaset") ) {
   i++;
   if ( set_meta(&con, atoi(argv[i]), argv[i+1], argv[i+2], argv[i+3]) == -1 ) {
    fprintf(stderr, "Error: can not set meta data\n");
   } else {
    printf("meta data changed\n");
   }
   i += 3;
  } else if ( !strcmp(k, "metaget") ) {
   i++;
   if ( show_meta_type(&con, atoi(argv[i]), argv[i+1]) == -1 ) {
    fprintf(stderr, "Error: can not get meta data\n");
   }
   i++;
  } else if ( !strcmp(k, "metasave") ) {
   i++;
   if ( save_meta(&con, atoi(argv[i]), argv[i+1]) == -1 ) {
    fprintf(stderr, "Error: can not get meta data\n");
   } else {
    printf("meta data saved\n");
   }
   i++;
  } else if ( !strcmp(k, "metaload") ) {
   i++;
   if ( load_meta(&con, atoi(argv[i]), argv[i+1]) == -1 ) {
    fprintf(stderr, "Error: can not set meta data\n");
   } else {
    printf("meta data saved\n");
   }
   i++;

  } else {
   fprintf(stderr, "Error: invalid command: %s\n", k);
  }

 }

 roar_disconnect(&con);

 return 0;
}

//ll