Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pjmedia.h> |
| 21 | #include <pjlib.h> |
| 22 | #include <stdio.h> |
| 23 | |
| 24 | #define THIS_FILE "audio_tool.c" |
| 25 | |
| 26 | static pj_caching_pool caching_pool; |
| 27 | static pj_pool_factory *pf; |
| 28 | static FILE *fhnd; |
| 29 | static pj_med_mgr_t *mm; |
| 30 | static pjmedia_codec *codec; |
| 31 | static pjmedia_codec_param cattr; |
| 32 | |
| 33 | |
| 34 | #define WRITE_ORIGINAL_PCM 0 |
| 35 | #if WRITE_ORIGINAL_PCM |
| 36 | static FILE *fhnd_pcm; |
| 37 | #endif |
| 38 | |
| 39 | static char talker_sdp[] = |
| 40 | "v=0\r\n" |
| 41 | "o=- 0 0 IN IP4 127.0.0.1\r\n" |
| 42 | "s=-\r\n" |
| 43 | "c=IN IP4 127.0.0.1\r\n" |
| 44 | "t=0 0\r\n" |
| 45 | "m=audio 4002 RTP/AVP 0\r\n" |
| 46 | "a=rtpmap:0 PCMU/8000\r\n" |
| 47 | "a=sendonly\r\n"; |
| 48 | static char listener_sdp[] = |
| 49 | "v=0\r\n" |
| 50 | "o=- 0 0 IN IP4 127.0.0.1\r\n" |
| 51 | "s=-\r\n" |
| 52 | "c=IN IP4 127.0.0.1\r\n" |
| 53 | "t=0 0\r\n" |
| 54 | "m=audio 4000 RTP/AVP 0\r\n" |
| 55 | "a=rtpmap:0 PCMU/8000\r\n" |
| 56 | "a=recvonly\r\n"; |
| 57 | |
| 58 | static pj_status_t play_callback(/* in */ void *user_data, |
| 59 | /* in */ pj_uint32_t timestamp, |
| 60 | /* out */ void *frame, |
| 61 | /* out */ unsigned size) |
| 62 | { |
| 63 | char pkt[160]; |
| 64 | struct pjmedia_frame in, out; |
| 65 | int frmsz = cattr.avg_bps / 8 * cattr.ptime / 1000; |
| 66 | |
| 67 | if (fread(pkt, frmsz, 1, fhnd) != 1) { |
| 68 | puts("EOF"); |
| 69 | return -1; |
| 70 | } else { |
| 71 | in.type = PJMEDIA_FRAME_TYPE_AUDIO; |
| 72 | in.buf = pkt; |
| 73 | in.size = frmsz; |
| 74 | out.buf = frame; |
| 75 | if (codec->op->decode (codec, &in, size, &out) != 0) |
| 76 | return -1; |
| 77 | |
| 78 | size = out.size; |
| 79 | return 0; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | static pj_status_t rec_callback( /* in */ void *user_data, |
| 84 | /* in */ pj_uint32_t timestamp, |
| 85 | /* in */ const void *frame, |
| 86 | /* in*/ unsigned size) |
| 87 | { |
| 88 | char pkt[160]; |
| 89 | struct pjmedia_frame in, out; |
| 90 | //int frmsz = cattr.avg_bps / 8 * cattr.ptime / 1000; |
| 91 | |
| 92 | #if WRITE_ORIGINAL_PCM |
| 93 | fwrite(frame, size, 1, fhnd_pcm); |
| 94 | #endif |
| 95 | |
| 96 | in.type = PJMEDIA_FRAME_TYPE_AUDIO; |
| 97 | in.buf = (void*)frame; |
| 98 | in.size = size; |
| 99 | out.buf = pkt; |
| 100 | |
| 101 | if (codec->op->encode(codec, &in, sizeof(pkt), &out) != 0) |
| 102 | return -1; |
| 103 | |
| 104 | if (fwrite(pkt, out.size, 1, fhnd) != 1) |
| 105 | return -1; |
| 106 | return 0; |
| 107 | } |
| 108 | |
| 109 | static pj_status_t init() |
| 110 | { |
| 111 | pjmedia_codec_mgr *cm; |
| 112 | pjmedia_codec_info id; |
| 113 | int i; |
| 114 | |
| 115 | pj_caching_pool_init(&caching_pool, &pj_pool_factory_default_policy, 0); |
| 116 | pf = &caching_pool.factory; |
| 117 | |
| 118 | if (pj_snd_init(&caching_pool.factory)) |
| 119 | return -1; |
| 120 | |
| 121 | PJ_LOG(3,(THIS_FILE, "Dumping audio devices:")); |
| 122 | for (i=0; i<pj_snd_get_dev_count(); ++i) { |
| 123 | const pj_snd_dev_info *info; |
| 124 | info = pj_snd_get_dev_info(i); |
| 125 | PJ_LOG(3,(THIS_FILE, " %d: %s\t(%d in, %d out", |
| 126 | i, info->name, |
| 127 | info->input_count, info->output_count)); |
| 128 | } |
| 129 | |
| 130 | mm = pj_med_mgr_create (&caching_pool.factory); |
| 131 | cm = pj_med_mgr_get_codec_mgr (mm); |
| 132 | |
| 133 | id.type = PJMEDIA_TYPE_AUDIO; |
| 134 | id.pt = 0; |
| 135 | id.encoding_name = pj_str("PCMU"); |
| 136 | id.sample_rate = 8000; |
| 137 | |
| 138 | codec = pjmedia_codec_mgr_alloc_codec (cm, &id); |
| 139 | codec->op->default_attr(codec, &cattr); |
| 140 | codec->op->open(codec, &cattr); |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | static pj_status_t deinit() |
| 145 | { |
| 146 | pjmedia_codec_mgr *cm; |
| 147 | cm = pj_med_mgr_get_codec_mgr (mm); |
| 148 | codec->op->close(codec); |
| 149 | pjmedia_codec_mgr_dealloc_codec (cm, codec); |
| 150 | pj_med_mgr_destroy (mm); |
| 151 | pj_caching_pool_destroy(&caching_pool); |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | static pj_status_t record_file (const char *filename) |
| 156 | { |
| 157 | pj_snd_stream *stream; |
| 158 | pj_snd_stream_info info; |
| 159 | int status; |
| 160 | char s[10]; |
| 161 | |
| 162 | printf("Recording to file %s...\n", filename); |
| 163 | |
| 164 | fhnd = fopen(filename, "wb"); |
| 165 | if (!fhnd) |
| 166 | return -1; |
| 167 | |
| 168 | #if WRITE_ORIGINAL_PCM |
| 169 | fhnd_pcm = fopen("ORIGINAL.PCM", "wb"); |
| 170 | if (!fhnd_pcm) |
| 171 | return -1; |
| 172 | #endif |
| 173 | |
| 174 | pj_bzero(&info, sizeof(info)); |
| 175 | info.bits_per_sample = 16; |
| 176 | info.bytes_per_frame = 2; |
| 177 | info.frames_per_packet = 160; |
| 178 | info.samples_per_frame = 1; |
| 179 | info.samples_per_sec = 8000; |
| 180 | |
| 181 | stream = pj_snd_open_recorder(-1, &info, &rec_callback, NULL); |
| 182 | if (!stream) |
| 183 | return -1; |
| 184 | |
| 185 | status = pj_snd_stream_start(stream); |
| 186 | if (status != 0) |
| 187 | goto on_error; |
| 188 | |
| 189 | puts("Press <ENTER> to exit recording"); |
| 190 | fgets(s, sizeof(s), stdin); |
| 191 | |
| 192 | pj_snd_stream_stop(stream); |
| 193 | pj_snd_stream_close(stream); |
| 194 | |
| 195 | #if WRITE_ORIGINAL_PCM |
| 196 | fclose(fhnd_pcm); |
| 197 | #endif |
| 198 | fclose(fhnd); |
| 199 | return 0; |
| 200 | |
| 201 | on_error: |
| 202 | pj_snd_stream_stop(stream); |
| 203 | pj_snd_stream_close(stream); |
| 204 | return -1; |
| 205 | } |
| 206 | |
| 207 | |
| 208 | static pj_status_t play_file (const char *filename) |
| 209 | { |
| 210 | pj_snd_stream *stream; |
| 211 | pj_snd_stream_info info; |
| 212 | int status; |
| 213 | char s[10]; |
| 214 | |
| 215 | printf("Playing file %s...\n", filename); |
| 216 | |
| 217 | fhnd = fopen(filename, "rb"); |
| 218 | if (!fhnd) |
| 219 | return -1; |
| 220 | |
| 221 | pj_bzero(&info, sizeof(info)); |
| 222 | info.bits_per_sample = 16; |
| 223 | info.bytes_per_frame = 2; |
| 224 | info.frames_per_packet = 160; |
| 225 | info.samples_per_frame = 1; |
| 226 | info.samples_per_sec = 8000; |
| 227 | |
| 228 | stream = pj_snd_open_player(-1, &info, &play_callback, NULL); |
| 229 | if (!stream) |
| 230 | return -1; |
| 231 | |
| 232 | status = pj_snd_stream_start(stream); |
| 233 | if (status != 0) |
| 234 | goto on_error; |
| 235 | |
| 236 | puts("Press <ENTER> to exit playing"); |
| 237 | fgets(s, sizeof(s), stdin); |
| 238 | |
| 239 | pj_snd_stream_stop(stream); |
| 240 | pj_snd_stream_close(stream); |
| 241 | |
| 242 | fclose(fhnd); |
| 243 | return 0; |
| 244 | |
| 245 | on_error: |
| 246 | pj_snd_stream_stop(stream); |
| 247 | pj_snd_stream_close(stream); |
| 248 | return -1; |
| 249 | } |
| 250 | |
| 251 | static int create_ses_by_remote_sdp(int local_port, char *sdp) |
| 252 | { |
| 253 | pj_media_session_t *ses = NULL; |
| 254 | pjsdp_session_desc *sdp_ses; |
| 255 | pj_media_sock_info skinfo; |
| 256 | pj_pool_t *pool; |
| 257 | char s[4]; |
| 258 | const pj_media_stream_info *info[2]; |
| 259 | int i, count; |
| 260 | |
| 261 | pool = pj_pool_create(pf, "sdp", 1024, 0, NULL); |
| 262 | if (!pool) { |
| 263 | PJ_LOG(1,(THIS_FILE, "Unable to create pool")); |
| 264 | return -1; |
| 265 | } |
| 266 | |
| 267 | pj_bzero(&skinfo, sizeof(skinfo)); |
| 268 | skinfo.rtp_sock = skinfo.rtcp_sock = pj_sock_socket(pj_AF_INET(), pj_SOCK_DGRAM(), 0, 0); |
| 269 | if (skinfo.rtp_sock == PJ_INVALID_SOCKET) { |
| 270 | PJ_LOG(1,(THIS_FILE, "Unable to create socket")); |
| 271 | goto on_error; |
| 272 | } |
| 273 | |
| 274 | pj_sockaddr_init2(&skinfo.rtp_addr_name, "0.0.0.0", local_port); |
| 275 | if (pj_sock_bind(skinfo.rtp_sock, (struct pj_sockaddr*)&skinfo.rtp_addr_name, sizeof(pj_sockaddr_in)) != 0) { |
| 276 | PJ_LOG(1,(THIS_FILE, "Unable to bind socket")); |
| 277 | goto on_error; |
| 278 | } |
| 279 | |
| 280 | sdp_ses = pjsdp_parse(sdp, strlen(sdp), pool); |
| 281 | if (!sdp_ses) { |
| 282 | PJ_LOG(1,(THIS_FILE, "Error parsing SDP")); |
| 283 | goto on_error; |
| 284 | } |
| 285 | |
| 286 | ses = pj_media_session_create_from_sdp(mm, sdp_ses, &skinfo); |
| 287 | if (!ses) { |
| 288 | PJ_LOG(1,(THIS_FILE, "Unable to create session from SDP")); |
| 289 | goto on_error; |
| 290 | } |
| 291 | |
| 292 | if (pj_media_session_activate(ses) != 0) { |
| 293 | PJ_LOG(1,(THIS_FILE, "Error activating session")); |
| 294 | goto on_error; |
| 295 | } |
| 296 | |
| 297 | count = pj_media_session_enum_streams(ses, 2, info); |
| 298 | printf("\nDumping streams: \n"); |
| 299 | for (i=0; i<count; ++i) { |
| 300 | const char *dir; |
| 301 | char *local_ip; |
| 302 | |
| 303 | switch (info[i]->dir) { |
| 304 | case PJMEDIA_DIR_NONE: |
| 305 | dir = "- NONE -"; break; |
| 306 | case PJMEDIA_DIR_ENCODING: |
| 307 | dir = "SENDONLY"; break; |
| 308 | case PJMEDIA_DIR_DECODING: |
| 309 | dir = "RECVONLY"; break; |
| 310 | case PJMEDIA_DIR_ENCODING_DECODING: |
| 311 | dir = "SENDRECV"; break; |
| 312 | default: |
| 313 | dir = "?UNKNOWN"; break; |
| 314 | } |
| 315 | |
| 316 | local_ip = pj_sockaddr_get_str_addr(&info[i]->sock_info.rtp_addr_name); |
| 317 | |
| 318 | printf(" Stream %d: %.*s %s local=%s:%d remote=%.*s:%d\n", |
| 319 | i, info[i]->type.slen, info[i]->type.ptr, |
| 320 | dir, |
| 321 | local_ip, pj_sockaddr_get_port(&info[i]->sock_info.rtp_addr_name), |
| 322 | info[i]->rem_addr.slen, info[i]->rem_addr.ptr, info[i]->rem_port); |
| 323 | } |
| 324 | |
| 325 | puts("Press <ENTER> to quit"); |
| 326 | fgets(s, sizeof(s), stdin); |
| 327 | |
| 328 | pj_media_session_destroy(ses); |
| 329 | pj_sock_close(skinfo.rtp_sock); |
| 330 | pj_pool_release(pool); |
| 331 | |
| 332 | return 0; |
| 333 | |
| 334 | on_error: |
| 335 | if (ses) |
| 336 | pj_media_session_destroy(ses); |
| 337 | if (skinfo.rtp_sock != PJ_INVALID_SOCKET) |
| 338 | pj_sock_close(skinfo.rtp_sock); |
| 339 | if (pool) |
| 340 | pj_pool_release(pool); |
| 341 | return -1; |
| 342 | } |
| 343 | |
| 344 | #if WRITE_ORIGINAL_PCM |
| 345 | static pj_status_t convert(const char *src, const char *dst) |
| 346 | { |
| 347 | char pcm[320]; |
| 348 | char frame[160]; |
| 349 | struct pjmedia_frame in, out; |
| 350 | |
| 351 | fhnd_pcm = fopen(src, "rb"); |
| 352 | if (!fhnd_pcm) |
| 353 | return -1; |
| 354 | fhnd = fopen(dst, "wb"); |
| 355 | if (!fhnd) |
| 356 | return -1; |
| 357 | |
| 358 | while (fread(pcm, 320, 1, fhnd_pcm) == 1) { |
| 359 | |
| 360 | in.type = PJMEDIA_FRAME_TYPE_AUDIO; |
| 361 | in.buf = pcm; |
| 362 | in.size = 320; |
| 363 | out.buf = frame; |
| 364 | |
| 365 | if (codec->op->encode(codec, &in, 160, &out) != 0) |
| 366 | break; |
| 367 | |
| 368 | if (fwrite(frame, out.size, 1, fhnd) != 1) |
| 369 | break; |
| 370 | |
| 371 | } |
| 372 | |
| 373 | fclose(fhnd); |
| 374 | fclose(fhnd_pcm); |
| 375 | return 0; |
| 376 | } |
| 377 | #endif |
| 378 | |
| 379 | static void usage(const char *exe) |
| 380 | { |
| 381 | printf("Usage: %s <command> <file>\n", exe); |
| 382 | puts("where:"); |
| 383 | puts(" <command> play|record|send|recv"); |
| 384 | } |
| 385 | |
| 386 | int main(int argc, char *argv[]) |
| 387 | { |
| 388 | if (argc < 2) { |
| 389 | usage(argv[0]); |
| 390 | return 1; |
| 391 | } |
| 392 | |
| 393 | pj_init(); |
| 394 | |
| 395 | init(); |
| 396 | |
| 397 | if (stricmp(argv[1], "record")==0) { |
| 398 | record_file("FILE.PCM"); |
| 399 | } else if (stricmp(argv[1], "play")==0) { |
| 400 | play_file("FILE.PCM"); |
| 401 | } else if (stricmp(argv[1], "send")==0) { |
| 402 | create_ses_by_remote_sdp(4002, listener_sdp); |
| 403 | } else if (stricmp(argv[1], "recv")==0) { |
| 404 | create_ses_by_remote_sdp(4000, talker_sdp); |
| 405 | } else { |
| 406 | usage(argv[0]); |
| 407 | } |
| 408 | deinit(); |
| 409 | return 0; |
| 410 | } |