[0] | 1 | //streams.c: |
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| 2 | |
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[668] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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| 5 | * |
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| 6 | * This file is part of roard a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * RoarAudio is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | */ |
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| 24 | |
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[0] | 25 | #include "roard.h" |
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| 26 | |
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| 27 | int streams_init (void) { |
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| 28 | int i; |
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| 29 | |
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| 30 | for (i = 0; i < ROAR_STREAMS_MAX; i++) |
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| 31 | g_streams[i] = NULL; |
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| 32 | |
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| 33 | return 0; |
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| 34 | } |
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| 35 | |
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| 36 | int streams_free (void) { |
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| 37 | int i; |
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| 38 | |
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| 39 | for (i = 0; i < ROAR_STREAMS_MAX; i++) { |
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| 40 | if ( g_streams[i] != NULL ) { |
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| 41 | streams_delete(i); |
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| 42 | } |
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| 43 | } |
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| 44 | |
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| 45 | return 0; |
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| 46 | } |
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| 47 | |
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| 48 | |
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| 49 | int streams_new (void) { |
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[16] | 50 | int i, j; |
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[494] | 51 | struct roar_stream * n = NULL; |
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| 52 | struct roar_stream_server * s = NULL; |
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[0] | 53 | |
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| 54 | for (i = 0; i < ROAR_STREAMS_MAX; i++) { |
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| 55 | if ( g_streams[i] == NULL ) { |
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[494] | 56 | s = ROAR_STREAM_SERVER(n = ROAR_STREAM(malloc(sizeof(struct roar_stream_server)))); |
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[0] | 57 | if ( n == NULL ) { |
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| 58 | ROAR_ERR("streams_new(void): can not allocate memory for new stream: %s", strerror(errno)); |
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| 59 | ROAR_DBG("streams_new(void) = -1"); |
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| 60 | return -1; |
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| 61 | } |
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| 62 | |
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| 63 | n->id = i; |
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| 64 | n->fh = -1; |
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| 65 | // n->pos_rel_id = i; |
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| 66 | n->database = NULL; |
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| 67 | n->dataoff = NULL; |
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| 68 | n->datalen = 0; |
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| 69 | n->offset = 0; |
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[381] | 70 | n->pos = 0; |
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[0] | 71 | |
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[494] | 72 | s->client = -1; |
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| 73 | s->socktype = ROAR_SOCKET_TYPE_UNKNOWN; |
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| 74 | s->buffer = NULL; |
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| 75 | s->need_extra = 0; |
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| 76 | s->output = NULL; |
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| 77 | s->is_new = 1; |
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| 78 | s->codecfilter = -1; |
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[538] | 79 | s->pre_underruns = 0; |
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| 80 | s->post_underruns = 0; |
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| 81 | s->codec_orgi = -1; |
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[643] | 82 | s->primary = 0; |
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[494] | 83 | |
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| 84 | s->mixer.scale = 65535; |
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| 85 | s->mixer.rpg_mul = 1; |
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| 86 | s->mixer.rpg_div = 1; |
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[16] | 87 | for (j = 0; j < ROAR_MAX_CHANNELS; j++) |
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[494] | 88 | s->mixer.mixer[j] = 65535; |
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| 89 | |
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[90] | 90 | for (j = 0; j < ROAR_META_MAX_PER_STREAM; j++) { |
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[494] | 91 | s->meta[j].type = ROAR_META_TYPE_NONE; |
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| 92 | s->meta[j].key[0] = 0; |
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| 93 | s->meta[j].value = NULL; |
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[90] | 94 | } |
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[0] | 95 | |
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[592] | 96 | roar_vio_init_calls(&(s->vio)); |
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| 97 | |
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[494] | 98 | g_streams[i] = s; |
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[491] | 99 | ROAR_DBG("streams_new(void): n->id=%i", n->id); |
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[0] | 100 | ROAR_DBG("streams_new(void) = %i", i); |
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| 101 | return i; |
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| 102 | } |
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| 103 | } |
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| 104 | |
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| 105 | return -1; |
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| 106 | } |
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| 107 | |
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| 108 | int streams_delete (int id) { |
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[643] | 109 | struct roar_stream_server * s; |
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[645] | 110 | int prim; |
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| 111 | |
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[643] | 112 | if ( (s = g_streams[id]) == NULL ) |
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[0] | 113 | return 0; |
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| 114 | |
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| 115 | ROAR_DBG("streams_delete(id=%i) = ?", id); |
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[643] | 116 | ROAR_DBG("streams_delete(id=%i): g_streams[id]->id=%i", id, ROAR_STREAM(s)->id); |
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[0] | 117 | |
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[643] | 118 | if ( s->codecfilter != -1 ) { |
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| 119 | codecfilter_close(s->codecfilter_inst, s->codecfilter); |
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| 120 | s->codecfilter_inst = NULL; |
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| 121 | s->codecfilter = -1; |
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| 122 | } |
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| 123 | |
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| 124 | if ( s->client != -1 ) { |
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| 125 | ROAR_DBG("streams_delete(id=%i): Stream is owned by client %i", id, g_streams[id]->client); |
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| 126 | client_stream_delete(s->client, id); |
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[269] | 127 | } |
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| 128 | |
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[643] | 129 | if ( s->buffer != NULL ) |
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| 130 | roar_buffer_free(s->buffer); |
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| 131 | |
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| 132 | if ( s->output != NULL ) |
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| 133 | free(s->output); |
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| 134 | |
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| 135 | if ( ROAR_STREAM(s)->fh != -1 ) |
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| 136 | close(ROAR_STREAM(s)->fh); |
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| 137 | |
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[645] | 138 | prim = s->primary; |
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[0] | 139 | |
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[643] | 140 | free(s); |
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[0] | 141 | |
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| 142 | g_streams[id] = NULL; |
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| 143 | |
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[645] | 144 | if ( prim ) { |
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| 145 | alive = 0; |
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| 146 | clean_quit(); |
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| 147 | } |
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| 148 | |
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[0] | 149 | ROAR_DBG("streams_delete(id=%i) = 0", id); |
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| 150 | return 0; |
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| 151 | } |
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| 152 | |
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| 153 | int streams_set_client (int id, int client) { |
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| 154 | if ( g_streams[id] == NULL ) |
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| 155 | return -1; |
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| 156 | |
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[491] | 157 | ROAR_DBG("streams_set_client(id=%i): g_streams[id]->id=%i", id, ROAR_STREAM(g_streams[id])->id); |
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[0] | 158 | g_streams[id]->client = client; |
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| 159 | |
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| 160 | return 0; |
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| 161 | } |
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| 162 | |
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[766] | 163 | int streams_get_client (int id) { |
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| 164 | if ( g_streams[id] == NULL ) |
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| 165 | return -1; |
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| 166 | |
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| 167 | return g_streams[id]->client; |
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| 168 | } |
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| 169 | |
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| 170 | |
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[0] | 171 | int streams_set_fh (int id, int fh) { |
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[51] | 172 | int dir; |
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| 173 | |
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[0] | 174 | if ( g_streams[id] == NULL ) |
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| 175 | return -1; |
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| 176 | |
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[491] | 177 | ROAR_DBG("streams_set_fh(id=%i): g_streams[id]->id=%i", id, ROAR_STREAM(g_streams[id])->id); |
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| 178 | |
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[609] | 179 | ROAR_STREAM(g_streams[id])->fh = fh; |
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[0] | 180 | |
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[571] | 181 | if ( codecfilter_open(&(g_streams[id]->codecfilter_inst), &(g_streams[id]->codecfilter), NULL, |
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| 182 | ROAR_STREAM(g_streams[id])->info.codec, g_streams[id]) == -1 ) { |
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| 183 | return streams_delete(id); |
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| 184 | } |
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[268] | 185 | |
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[634] | 186 | if ( fh == -1 ) { // yes, this is valid, indecats full vio! |
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| 187 | return 0; |
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| 188 | } |
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| 189 | |
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[491] | 190 | dir = ROAR_STREAM(g_streams[id])->dir; |
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[51] | 191 | |
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[634] | 192 | if ( dir == ROAR_DIR_MONITOR || dir == ROAR_DIR_RECORD || dir == ROAR_DIR_OUTPUT ) { |
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[53] | 193 | shutdown(fh, SHUT_RD); |
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[51] | 194 | } |
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| 195 | |
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| 196 | if ( dir == ROAR_DIR_FILTER ) { |
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[0] | 197 | return 0; |
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| 198 | } else { |
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| 199 | return roar_socket_nonblock(fh, ROAR_SOCKET_NONBLOCK); |
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| 200 | } |
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| 201 | } |
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| 202 | |
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[66] | 203 | int streams_get_fh (int id) { |
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[84] | 204 | if ( id < 0 ) |
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| 205 | return -1; |
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| 206 | |
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[66] | 207 | if ( g_streams[id] == NULL ) |
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| 208 | return -1; |
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| 209 | |
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[609] | 210 | return ROAR_STREAM(g_streams[id])->fh; |
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[66] | 211 | } |
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[0] | 212 | |
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| 213 | int streams_get (int id, struct roar_stream_server ** stream) { |
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| 214 | if ( g_streams[id] == NULL ) |
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| 215 | return -1; |
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| 216 | |
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| 217 | *stream = g_streams[id]; |
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| 218 | |
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| 219 | return 0; |
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| 220 | } |
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| 221 | |
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[377] | 222 | int streams_set_socktype (int id, int socktype) { |
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| 223 | if ( g_streams[id] == NULL ) |
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| 224 | return -1; |
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| 225 | |
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| 226 | g_streams[id]->socktype = socktype; |
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| 227 | |
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| 228 | return 0; |
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| 229 | } |
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| 230 | |
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| 231 | int streams_get_socktype (int id) { |
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| 232 | if ( g_streams[id] == NULL ) |
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| 233 | return -1; |
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| 234 | |
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| 235 | return g_streams[id]->socktype; |
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| 236 | } |
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[0] | 237 | |
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[643] | 238 | int streams_set_primary (int id, int prim) { |
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| 239 | if ( g_streams[id] == NULL ) |
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| 240 | return -1; |
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| 241 | |
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| 242 | g_streams[id]->primary = prim; |
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| 243 | |
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| 244 | return 0; |
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| 245 | } |
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| 246 | |
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| 247 | int streams_mark_primary (int id) { |
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| 248 | return streams_set_primary(id, 1); |
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| 249 | } |
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[0] | 250 | int streams_get_outputbuffer (int id, void ** buffer, size_t size) { |
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| 251 | if ( g_streams[id] == NULL ) |
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| 252 | return -1; |
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| 253 | |
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| 254 | // output buffer size does never change. |
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| 255 | if ( g_streams[id]->output != NULL ) { |
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| 256 | *buffer = g_streams[id]->output; |
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| 257 | return 0; |
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| 258 | } |
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| 259 | |
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| 260 | if ( (g_streams[id]->output = malloc(size)) == NULL ) { |
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| 261 | ROAR_ERR("streams_get_outputbuffer(*): Can not alloc: %s", strerror(errno)); |
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| 262 | return -1; |
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| 263 | } |
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| 264 | |
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| 265 | *buffer = g_streams[id]->output; |
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| 266 | |
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| 267 | return 0; |
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| 268 | } |
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| 269 | |
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| 270 | int streams_fill_mixbuffer (int id, struct roar_audio_info * info) { |
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| 271 | // TODO: decide: is this the most complex, hacked, un-understadable, |
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| 272 | // un-writeable and even worse: un-readable |
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| 273 | // function in the whole project? |
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| 274 | size_t todo = ROAR_OUTPUT_CALC_OUTBUFSIZE(info); |
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[381] | 275 | size_t needed = todo; |
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[0] | 276 | size_t todo_in; |
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| 277 | size_t len, outlen; |
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[491] | 278 | size_t mul = 1, div = 1; |
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[0] | 279 | void * rest = NULL; |
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| 280 | void * in = NULL; |
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| 281 | struct roar_buffer * buf; |
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| 282 | struct roar_audio_info * stream_info; |
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[495] | 283 | struct roar_stream_server * stream = g_streams[id]; |
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[0] | 284 | int is_the_same = 0; |
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| 285 | |
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| 286 | if ( g_streams[id] == NULL ) |
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| 287 | return -1; |
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| 288 | |
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| 289 | if ( streams_get_outputbuffer(id, &rest, todo) == -1 ) { |
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| 290 | return -1; |
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| 291 | } |
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| 292 | |
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| 293 | if ( rest == NULL ) { |
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| 294 | return -1; |
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| 295 | } |
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| 296 | |
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| 297 | // set up stream_info |
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| 298 | |
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[495] | 299 | stream_info = &(ROAR_STREAM(stream)->info); |
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[0] | 300 | |
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| 301 | // calc todo_in |
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[491] | 302 | todo_in = ROAR_OUTPUT_CALC_OUTBUFSIZE(stream_info); |
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| 303 | |
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| 304 | // calc mul and div: |
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| 305 | mul = todo / todo_in; |
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| 306 | div = todo_in / todo; |
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| 307 | |
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| 308 | if ( mul == 0 ) { |
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| 309 | mul = 1; |
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| 310 | } else { |
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| 311 | div = 1; |
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| 312 | } |
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| 313 | |
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| 314 | ROAR_DBG("streams_fill_mixbuffer(*): mul=%i, div=%i", mul, div); |
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[0] | 315 | |
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| 316 | ROAR_DBG("streams_fill_mixbuffer(*): rest=%p, todo=%i->%i (in->out)", rest, todo_in, todo); |
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| 317 | // are both (input and output) of same format? |
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| 318 | |
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| 319 | |
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| 320 | ROAR_DBG("streams_fill_mixbuffer(*): stream_info:"); |
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| 321 | roar_debug_audio_info_print(stream_info); |
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| 322 | ROAR_DBG("streams_fill_mixbuffer(*): info:"); |
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| 323 | roar_debug_audio_info_print(info); |
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| 324 | |
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| 325 | is_the_same = stream_info->rate == info->rate && stream_info->bits == info->bits && |
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| 326 | stream_info->channels == info->channels && stream_info->codec == info->codec; |
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| 327 | |
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| 328 | ROAR_DBG("streams_fill_mixbuffer(*): is_the_same=%i", is_the_same); |
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| 329 | |
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| 330 | /* How it works: |
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| 331 | * |
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| 332 | * set a counter to the number of samples we need. |
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| 333 | * loop until we have all samples done or no samples are |
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| 334 | * left in our input buffer. |
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| 335 | * If there a no samples left in the input buffer: fill the rest |
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| 336 | * of the output buffer with zeros. |
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| 337 | * |
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| 338 | * The loop: |
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| 339 | * get a buffer from the input. |
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| 340 | * if it's bigger than needed, set an offset. |
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| 341 | * The rest of the data: |
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| 342 | * 0) convert endianness (codec) from remote to local... |
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| 343 | * 1) change bits in of the samples |
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| 344 | * 2) change sample rate |
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| 345 | * 3) change the nummber of channels |
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| 346 | * 4) insert into output buffer |
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| 347 | */ |
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| 348 | |
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| 349 | /* |
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| 350 | // get our first buffer: |
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| 351 | |
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| 352 | if ( stream_shift_buffer(id, &buf) == -1 ) { |
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| 353 | return -1; |
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| 354 | } |
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| 355 | |
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| 356 | // first test for some basic simple cases... |
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| 357 | |
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| 358 | if ( buf == NULL ) { // we habe nothing in input queue |
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| 359 | // we may memset() our output buffer OR |
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| 360 | // just return with -1 so we are going to |
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| 361 | // be ignored. |
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| 362 | return -1; |
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| 363 | } |
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| 364 | */ |
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| 365 | |
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| 366 | while (todo) { // main loop |
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| 367 | ROAR_DBG("streams_fill_mixbuffer(*): looping..."); |
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| 368 | // exit loop if nothing is left, even if we need more data.. |
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| 369 | if ( stream_shift_buffer(id, &buf) == -1 ) |
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| 370 | break; |
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| 371 | if ( buf == NULL ) |
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| 372 | break; |
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| 373 | |
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| 374 | // read the data for this loop... |
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| 375 | roar_buffer_get_data(buf, &in); |
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| 376 | roar_buffer_get_len(buf, &len); |
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| 377 | |
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| 378 | ROAR_DBG("streams_fill_mixbuffer(*): len = %i", len); |
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| 379 | |
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| 380 | if ( len > todo_in ) { |
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| 381 | roar_buffer_set_offset(buf, todo_in); |
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| 382 | len = todo_in; |
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| 383 | } else { |
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| 384 | roar_buffer_set_len(buf, 0); // queue for deletation |
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| 385 | } |
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| 386 | |
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| 387 | // we now have 'len' bytes in 'in' |
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| 388 | |
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| 389 | // calc how much outlen this has... |
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[491] | 390 | outlen = (len * mul) / div; |
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[0] | 391 | |
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| 392 | ROAR_DBG("streams_fill_mixbuffer(*): outlen = %i, buf = %p, len = %i", outlen, in, len); |
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| 393 | |
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| 394 | if ( is_the_same ) { |
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| 395 | /* |
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| 396 | * 0) convert endianness (codec) from remote to local... |
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| 397 | * 1) change bits in of the samples |
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| 398 | * 2) change sample rate |
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| 399 | * 3) change the nummber of channels |
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| 400 | \\==> skiping,... |
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| 401 | */ |
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| 402 | // * 4) insert into output buffer |
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| 403 | ROAR_DBG("streams_fill_mixbuffer(*): memcpy: in->rest: %p -> %p", in, rest); |
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| 404 | if ( memcpy(rest, in, len) != rest ) { |
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| 405 | ROAR_ERR("streams_fill_mixbuffer(*): memcpy returned invalid pointer."); |
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| 406 | } |
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| 407 | |
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| 408 | } else { |
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| 409 | |
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| 410 | /* |
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| 411 | // * 0) convert endianness (codec) from remote to local... |
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| 412 | if ( stream_info->codec != info->codec ) { |
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| 413 | // we neet to convert... |
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| 414 | return -1; |
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| 415 | } |
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| 416 | |
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| 417 | // * 1) change bits in of the samples |
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| 418 | if ( stream_info->bits != info->bits ) { |
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| 419 | return -1; |
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| 420 | } |
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| 421 | |
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| 422 | // * 2) change sample rate |
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| 423 | if ( stream_info->rate != info->rate ) { |
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| 424 | return -1; |
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| 425 | } |
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| 426 | |
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| 427 | // * 3) change the nummber of channels |
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| 428 | if ( stream_info->channels != info->channels ) { |
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| 429 | return -1; |
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| 430 | } |
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| 431 | |
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| 432 | // * 4) insert into output buffer |
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| 433 | */ |
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| 434 | // hey! we have roar_conv() :) |
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| 435 | |
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[491] | 436 | if ( roar_conv(rest, in, 8*len / stream_info->bits, stream_info, info) == -1 ) |
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| 437 | return -1; |
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| 438 | } |
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[0] | 439 | |
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[495] | 440 | if ( change_vol(rest, info->bits, rest, 8*outlen / info->bits, info->channels, &(stream->mixer)) == -1 ) |
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[491] | 441 | return -1; |
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[17] | 442 | |
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[0] | 443 | // we habe outlen bytes more... |
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[491] | 444 | todo -= outlen; |
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| 445 | rest += outlen; |
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| 446 | todo_in -= len; |
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[0] | 447 | |
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[491] | 448 | roar_buffer_get_len(buf, &len); |
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| 449 | ROAR_DBG("streams_fill_mixbuffer(*): New length of buffer %p is %i", buf, len); |
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| 450 | if ( len == 0 ) { |
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| 451 | roar_buffer_delete(buf, NULL); |
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| 452 | } else { |
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| 453 | stream_unshift_buffer(id, buf); |
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[271] | 454 | } |
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[0] | 455 | } |
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| 456 | |
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[271] | 457 | //len = 0; |
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| 458 | //roar_buffer_get_len(buf, &len); |
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[0] | 459 | |
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| 460 | /* |
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| 461 | if ( len > 0 ) // we still have some data in this buffer, re-inserting it to the input buffers... |
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| 462 | stream_unshift_buffer(id, buf); |
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| 463 | else |
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| 464 | buffer_delete(buf, NULL); |
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| 465 | */ |
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| 466 | |
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[609] | 467 | ROAR_STREAM(g_streams[id])->pos = |
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| 468 | ROAR_MATH_OVERFLOW_ADD(ROAR_STREAM(g_streams[id])->pos, |
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[381] | 469 | ROAR_OUTPUT_CALC_OUTBUFSAMP(info, needed-todo)); |
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| 470 | //ROAR_WARN("stream=%i, pos=%u", id, ((struct roar_stream*)g_streams[id])->pos); |
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| 471 | |
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[495] | 472 | if ( todo > 0 ) { // zeroize the rest of the buffer |
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[0] | 473 | memset(rest, 0, todo); |
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[125] | 474 | |
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| 475 | if ( todo != ROAR_OUTPUT_CALC_OUTBUFSIZE(info) ) { |
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[495] | 476 | if ( g_streams[id]->is_new ) { |
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| 477 | stream->pre_underruns++; |
---|
| 478 | } else { |
---|
[701] | 479 | ROAR_WARN("streams_fill_mixbuffer(*): Underrun in stream: %u bytes missing, filling with zeros", (unsigned int)todo); |
---|
[495] | 480 | stream->post_underruns++; |
---|
| 481 | } |
---|
[125] | 482 | |
---|
[495] | 483 | stream->is_new = 0; |
---|
[125] | 484 | } |
---|
| 485 | } else { |
---|
[495] | 486 | stream->is_new = 0; |
---|
[0] | 487 | } |
---|
| 488 | |
---|
| 489 | return 0; |
---|
| 490 | } |
---|
| 491 | |
---|
[491] | 492 | |
---|
[0] | 493 | int streams_get_mixbuffers (void *** bufferlist, struct roar_audio_info * info, unsigned int pos) { |
---|
[84] | 494 | static void * bufs[ROAR_STREAMS_MAX+1]; |
---|
[0] | 495 | int i; |
---|
| 496 | int have = 0; |
---|
| 497 | |
---|
| 498 | for (i = 0; i < ROAR_STREAMS_MAX; i++) { |
---|
| 499 | if ( g_streams[i] != NULL ) { |
---|
[826] | 500 | if ( ROAR_STREAM(g_streams[i])->dir != ROAR_DIR_PLAY && ROAR_STREAM(g_streams[i])->dir != ROAR_DIR_BIDIR ) |
---|
[0] | 501 | continue; |
---|
| 502 | |
---|
| 503 | if ( streams_get_outputbuffer(i, &bufs[have], ROAR_OUTPUT_CALC_OUTBUFSIZE(info)) == -1 ) { |
---|
| 504 | ROAR_ERR("streams_get_mixbuffer(*): Can not alloc output buffer for stream %i, BAD!", i); |
---|
| 505 | ROAR_ERR("streams_get_mixbuffer(*): Ignoring stream for this round."); |
---|
| 506 | continue; |
---|
| 507 | } |
---|
| 508 | if ( streams_fill_mixbuffer(i, info) == -1 ) { |
---|
| 509 | ROAR_ERR("streams_get_mixbuffer(*): Can not fill output buffer for stream %i, this should not happen", i); |
---|
| 510 | continue; |
---|
| 511 | } |
---|
| 512 | |
---|
[139] | 513 | // printf("D: bufs[have=%i] = %p\n", have, bufs[have]); |
---|
| 514 | |
---|
[0] | 515 | ROAR_DBG("streams_get_mixbuffers(*): bufs[have] = %p", bufs[have]); |
---|
| 516 | ROAR_DBG("streams_get_mixbuffers(*): *bufs[have] = 0x%08x...", *(uint32_t*)bufs[have]); |
---|
| 517 | |
---|
| 518 | have++; // we have a new stream! |
---|
| 519 | } |
---|
| 520 | } |
---|
| 521 | |
---|
| 522 | bufs[have] = NULL; |
---|
[139] | 523 | //printf("D: bufs[have=%i] = %p\n", have, bufs[have]); |
---|
[0] | 524 | |
---|
| 525 | ROAR_DBG("streams_get_mixbuffers(*): have = %i", have); |
---|
| 526 | |
---|
| 527 | *bufferlist = bufs; |
---|
[547] | 528 | return have; |
---|
[0] | 529 | } |
---|
| 530 | |
---|
| 531 | |
---|
| 532 | int stream_add_buffer (int id, struct roar_buffer * buf) { |
---|
| 533 | ROAR_DBG("stream_add_buffer(id=%i, buf=%p) = ?", id, buf); |
---|
| 534 | |
---|
| 535 | if ( g_streams[id] == NULL ) |
---|
| 536 | return -1; |
---|
| 537 | |
---|
| 538 | if ( g_streams[id]->buffer == NULL ) { |
---|
| 539 | g_streams[id]->buffer = buf; |
---|
| 540 | ROAR_DBG("stream_add_buffer(id=%i, buf=%p) = 0", id, buf); |
---|
| 541 | return 0; |
---|
| 542 | } |
---|
| 543 | |
---|
| 544 | ROAR_DBG("stream_add_buffer(id=%i, buf=%p) = ?", id, buf); |
---|
| 545 | return roar_buffer_add(g_streams[id]->buffer, buf); |
---|
| 546 | } |
---|
| 547 | |
---|
| 548 | int stream_shift_buffer (int id, struct roar_buffer ** buf) { |
---|
| 549 | struct roar_buffer * next; |
---|
| 550 | |
---|
| 551 | if ( g_streams[id] == NULL ) |
---|
| 552 | return -1; |
---|
| 553 | |
---|
| 554 | if ( g_streams[id]->buffer == NULL ) { |
---|
| 555 | *buf = NULL; |
---|
| 556 | return 0; |
---|
| 557 | } |
---|
| 558 | |
---|
| 559 | roar_buffer_get_next(g_streams[id]->buffer, &next); |
---|
| 560 | |
---|
| 561 | *buf = g_streams[id]->buffer; |
---|
| 562 | g_streams[id]->buffer = next; |
---|
| 563 | |
---|
| 564 | return 0; |
---|
| 565 | } |
---|
| 566 | int stream_unshift_buffer (int id, struct roar_buffer * buf) { |
---|
| 567 | if ( g_streams[id] == NULL ) |
---|
| 568 | return -1; |
---|
| 569 | |
---|
| 570 | if ( g_streams[id]->buffer == NULL ) { |
---|
| 571 | g_streams[id]->buffer = buf; |
---|
| 572 | return 0; |
---|
| 573 | } |
---|
| 574 | |
---|
[271] | 575 | buf->next = NULL; |
---|
| 576 | |
---|
[0] | 577 | roar_buffer_add(buf, g_streams[id]->buffer); |
---|
| 578 | |
---|
| 579 | g_streams[id]->buffer = buf; |
---|
| 580 | |
---|
| 581 | return 0; |
---|
| 582 | } |
---|
| 583 | |
---|
| 584 | int streams_check (int id) { |
---|
| 585 | int fh; |
---|
[508] | 586 | ssize_t req, realreq, done; |
---|
[0] | 587 | struct roar_stream * s; |
---|
| 588 | struct roar_stream_server * ss; |
---|
| 589 | struct roar_buffer * b; |
---|
| 590 | char * buf; |
---|
| 591 | |
---|
| 592 | if ( g_streams[id] == NULL ) |
---|
| 593 | return -1; |
---|
| 594 | |
---|
| 595 | ROAR_DBG("streams_check(id=%i) = ?", id); |
---|
| 596 | |
---|
[609] | 597 | s = ROAR_STREAM(ss = g_streams[id]); |
---|
[0] | 598 | |
---|
| 599 | if ( (fh = s->fh) == -1 ) |
---|
| 600 | return 0; |
---|
| 601 | |
---|
[826] | 602 | if ( s->dir != ROAR_DIR_PLAY && s->dir != ROAR_DIR_BIDIR ) |
---|
[0] | 603 | return 0; |
---|
| 604 | |
---|
| 605 | ROAR_DBG("streams_check(id=%i): fh = %i", id, fh); |
---|
| 606 | |
---|
| 607 | req = ROAR_OUTPUT_BUFFER_SAMPLES * s->info.channels * s->info.bits / 8; // optimal size |
---|
| 608 | req += ss->need_extra; // bytes left we sould get.... |
---|
| 609 | |
---|
| 610 | if ( roar_buffer_new(&b, req) == -1 ) { |
---|
| 611 | ROAR_ERR("streams_check(*): Can not alloc buffer space!"); |
---|
| 612 | ROAR_DBG("streams_check(*) = -1"); |
---|
| 613 | return -1; |
---|
| 614 | } |
---|
| 615 | |
---|
| 616 | roar_buffer_get_data(b, (void **)&buf); |
---|
| 617 | |
---|
| 618 | ROAR_DBG("streams_check(id=%i): buffer is up and ready ;)", id); |
---|
| 619 | |
---|
[270] | 620 | if ( ss->codecfilter == -1 ) { |
---|
[508] | 621 | realreq = req; |
---|
| 622 | /* |
---|
[270] | 623 | req = read(fh, buf, req); |
---|
[508] | 624 | if ( req < realreq ) { // we can do this as the stream is in nonblocking mode! |
---|
| 625 | if ( (realreq = read(fh, buf+req, realreq-req)) > 0 ) |
---|
| 626 | req += realreq; |
---|
| 627 | } |
---|
| 628 | */ |
---|
| 629 | done = 0; |
---|
| 630 | while (req > 0 && done != realreq) { |
---|
| 631 | if ( (req = read(fh, buf+done, realreq-done)) > 0 ) |
---|
| 632 | done += req; |
---|
| 633 | } |
---|
| 634 | req = done; |
---|
[270] | 635 | } else { |
---|
| 636 | req = codecfilter_read(ss->codecfilter_inst, ss->codecfilter, buf, req); |
---|
| 637 | } |
---|
| 638 | |
---|
| 639 | if ( req > 0 ) { |
---|
[0] | 640 | ROAR_DBG("streams_check(id=%i): got %i bytes", id, req); |
---|
| 641 | |
---|
| 642 | roar_buffer_set_len(b, req); |
---|
| 643 | |
---|
| 644 | if ( stream_add_buffer(id, b) != -1 ) |
---|
| 645 | return 0; |
---|
| 646 | |
---|
| 647 | ROAR_ERR("streams_check(id=%i): something is wrong, could not add buffer to stream!", id); |
---|
| 648 | roar_buffer_free(b); |
---|
| 649 | } else { |
---|
[272] | 650 | ROAR_DBG("streams_check(id=%i): read() = %i // errno: %s", id, req, strerror(errno)); |
---|
| 651 | #ifdef ROAR_HAVE_LIBVORBISFILE |
---|
| 652 | if ( errno != EAGAIN && errno != ESPIPE ) { // libvorbis file trys to seek a bit ofen :) |
---|
| 653 | #else |
---|
| 654 | if ( errno != EAGAIN ) { |
---|
| 655 | #endif |
---|
| 656 | ROAR_DBG("streams_check(id=%i): EOF!", id); |
---|
| 657 | streams_delete(id); |
---|
| 658 | ROAR_DBG("streams_check(id=%i) = 0", id); |
---|
| 659 | } |
---|
[334] | 660 | roar_buffer_free(b); |
---|
[0] | 661 | return 0; |
---|
| 662 | } |
---|
| 663 | |
---|
| 664 | |
---|
| 665 | ROAR_DBG("streams_check(id=%i) = -1", id); |
---|
| 666 | return -1; |
---|
| 667 | } |
---|
| 668 | |
---|
| 669 | |
---|
| 670 | int streams_send_mon (int id) { |
---|
| 671 | int fh; |
---|
| 672 | struct roar_stream * s; |
---|
| 673 | struct roar_stream_server * ss; |
---|
[625] | 674 | void * obuf; |
---|
| 675 | int olen; |
---|
| 676 | int need_to_free = 0; |
---|
[0] | 677 | |
---|
| 678 | if ( g_streams[id] == NULL ) |
---|
| 679 | return -1; |
---|
| 680 | |
---|
| 681 | ROAR_DBG("streams_send_mon(id=%i) = ?", id); |
---|
| 682 | |
---|
[585] | 683 | s = ROAR_STREAM((ss = g_streams[id])); |
---|
[0] | 684 | |
---|
| 685 | if ( (fh = s->fh) == -1 ) |
---|
| 686 | return 0; |
---|
| 687 | |
---|
[826] | 688 | if ( s->dir != ROAR_DIR_MONITOR && s->dir != ROAR_DIR_OUTPUT && s->dir != ROAR_DIR_BIDIR ) |
---|
[0] | 689 | return 0; |
---|
| 690 | |
---|
| 691 | ROAR_DBG("streams_send_mon(id=%i): fh = %i", id, fh); |
---|
| 692 | |
---|
[625] | 693 | if ( s->info.channels != g_sa->channels || s->info.bits != g_sa->bits || |
---|
| 694 | s->info.rate != g_sa->rate || s->info.codec != g_sa->codec ) { |
---|
| 695 | olen = ROAR_OUTPUT_CALC_OUTBUFSIZE(&(s->info)); // we hope g_output_buffer_len |
---|
| 696 | // is ROAR_OUTPUT_CALC_OUTBUFSIZE(g_sa) here |
---|
| 697 | if ( (obuf = malloc(olen)) == NULL ) |
---|
| 698 | return -1; |
---|
| 699 | |
---|
| 700 | need_to_free = 1; |
---|
| 701 | |
---|
| 702 | ROAR_DBG("streams_send_mon(id=%i): obuf=%p, olen=%i", id, obuf, olen); |
---|
| 703 | |
---|
| 704 | if ( roar_conv(obuf, g_output_buffer, ROAR_OUTPUT_BUFFER_SAMPLES*g_sa->channels, g_sa, &(s->info)) == -1 ) { |
---|
| 705 | free(obuf); |
---|
| 706 | return -1; |
---|
| 707 | } |
---|
| 708 | } else { |
---|
| 709 | obuf = g_output_buffer; |
---|
| 710 | olen = g_output_buffer_len; |
---|
| 711 | } |
---|
| 712 | |
---|
[585] | 713 | errno = 0; |
---|
| 714 | |
---|
| 715 | if ( ss->codecfilter == -1 ) { |
---|
[625] | 716 | if ( write(fh, obuf, olen) == olen ) { |
---|
| 717 | if ( need_to_free ) free(obuf); |
---|
[585] | 718 | return 0; |
---|
[625] | 719 | } |
---|
[585] | 720 | } else { |
---|
[625] | 721 | if ( codecfilter_write(ss->codecfilter_inst, ss->codecfilter, obuf, olen) |
---|
| 722 | == olen ) { |
---|
| 723 | if ( need_to_free ) free(obuf); |
---|
[585] | 724 | return 0; |
---|
| 725 | } else { // we cann't retry on codec filetered streams |
---|
[625] | 726 | if ( need_to_free ) free(obuf); |
---|
[603] | 727 | streams_delete(id); |
---|
[585] | 728 | return -1; |
---|
| 729 | } |
---|
| 730 | } |
---|
[0] | 731 | |
---|
[129] | 732 | if ( errno == EAGAIN ) { |
---|
| 733 | // ok, the client blocks for a moment, we try to sleep a bit an retry in the hope not to |
---|
| 734 | // make any gapes in any output because of this |
---|
| 735 | |
---|
| 736 | usleep(100); // 0.1ms |
---|
| 737 | |
---|
[625] | 738 | if ( write(fh, obuf, olen) == olen ) { |
---|
| 739 | if ( need_to_free ) free(obuf); |
---|
[129] | 740 | return 0; |
---|
[625] | 741 | } |
---|
[129] | 742 | } |
---|
| 743 | |
---|
[0] | 744 | // ug... error... delete stream! |
---|
| 745 | |
---|
[625] | 746 | if ( need_to_free ) free(obuf); |
---|
[0] | 747 | streams_delete(id); |
---|
| 748 | |
---|
| 749 | return -1; |
---|
| 750 | } |
---|
| 751 | |
---|
| 752 | int streams_send_filter(int id) { |
---|
| 753 | int fh; |
---|
[127] | 754 | int have = 0; |
---|
| 755 | int len; |
---|
[0] | 756 | struct roar_stream * s; |
---|
| 757 | struct roar_stream_server * ss; |
---|
| 758 | |
---|
| 759 | if ( g_streams[id] == NULL ) |
---|
| 760 | return -1; |
---|
| 761 | |
---|
| 762 | ROAR_DBG("streams_send_filter(id=%i) = ?", id); |
---|
| 763 | |
---|
[609] | 764 | s = ROAR_STREAM(ss = g_streams[id]); |
---|
[0] | 765 | |
---|
| 766 | if ( (fh = s->fh) == -1 ) |
---|
| 767 | return 0; |
---|
| 768 | |
---|
| 769 | if ( s->dir != ROAR_DIR_FILTER ) |
---|
| 770 | return 0; |
---|
| 771 | |
---|
| 772 | ROAR_DBG("streams_send_filter(id=%i): fh = %i", id, fh); |
---|
| 773 | |
---|
| 774 | if ( write(fh, g_output_buffer, g_output_buffer_len) == g_output_buffer_len ) { |
---|
[127] | 775 | while ( have < g_output_buffer_len ) { |
---|
| 776 | if ( (len = read(fh, g_output_buffer+have, g_output_buffer_len-have)) < 1 ) { |
---|
| 777 | streams_delete(id); |
---|
| 778 | return -1; |
---|
| 779 | } |
---|
| 780 | have += len; |
---|
[0] | 781 | } |
---|
[127] | 782 | return 0; |
---|
[0] | 783 | } |
---|
| 784 | |
---|
| 785 | // ug... error... delete stream! |
---|
| 786 | |
---|
| 787 | streams_delete(id); |
---|
| 788 | |
---|
| 789 | return -1; |
---|
| 790 | } |
---|
| 791 | |
---|
[596] | 792 | |
---|
| 793 | // VIO: |
---|
| 794 | |
---|
| 795 | ssize_t stream_vio_read (int stream, void *buf, size_t count) { |
---|
| 796 | struct roar_stream_server * s = g_streams[stream]; |
---|
| 797 | |
---|
| 798 | if ( !s ) |
---|
| 799 | return -1; |
---|
| 800 | |
---|
| 801 | return stream_vio_s_read(s, buf, count); |
---|
| 802 | } |
---|
| 803 | |
---|
| 804 | ssize_t stream_vio_write(int stream, void *buf, size_t count) { |
---|
| 805 | struct roar_stream_server * s = g_streams[stream]; |
---|
| 806 | |
---|
| 807 | if ( !s ) |
---|
| 808 | return -1; |
---|
| 809 | |
---|
| 810 | return stream_vio_s_write(s, buf, count); |
---|
| 811 | } |
---|
| 812 | |
---|
| 813 | |
---|
| 814 | ssize_t stream_vio_s_read (struct roar_stream_server * stream, void *buf, size_t count) { |
---|
[741] | 815 | size_t len = 0; |
---|
| 816 | ssize_t r = -1; |
---|
[739] | 817 | |
---|
[596] | 818 | errno = 0; |
---|
| 819 | |
---|
| 820 | if ( !stream ) |
---|
| 821 | return -1; |
---|
| 822 | |
---|
| 823 | if ( ! stream->vio.read ) |
---|
| 824 | return -1; |
---|
| 825 | |
---|
[739] | 826 | while ( (r = stream->vio.read(ROAR_STREAM(stream)->fh, buf, count, stream->vio.inst)) > 0 ) { |
---|
| 827 | len += r; |
---|
| 828 | buf += r; |
---|
| 829 | count -= r; |
---|
| 830 | if ( count == 0 ) |
---|
| 831 | break; |
---|
| 832 | } |
---|
| 833 | |
---|
[740] | 834 | if ( len == 0 && r == -1 ) |
---|
| 835 | return -1; |
---|
| 836 | |
---|
[739] | 837 | return len; |
---|
[596] | 838 | } |
---|
| 839 | |
---|
| 840 | ssize_t stream_vio_s_write(struct roar_stream_server * stream, void *buf, size_t count) { |
---|
| 841 | errno = 0; |
---|
| 842 | |
---|
| 843 | if ( !stream ) |
---|
| 844 | return -1; |
---|
| 845 | |
---|
| 846 | if ( ! stream->vio.write ) |
---|
| 847 | return -1; |
---|
| 848 | |
---|
| 849 | return stream->vio.write(ROAR_STREAM(stream)->fh, buf, count, stream->vio.inst); |
---|
| 850 | } |
---|
| 851 | |
---|
[0] | 852 | //ll |
---|