session.c

   1 /*
   2  * This file is part of the sigrok-cli project.
   3  *
   4  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
   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 3 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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <glib.h>
  21 #include <glib/gstdio.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include "sigrok-cli.h"
  25
  26 static uint64_t limit_samples = 0;
  27 static uint64_t limit_frames = 0;
  28
  29 #ifdef HAVE_SRD
  30 extern struct srd_session *srd_sess;
  31 #endif
  32
  33 static int set_limit_time(const struct sr_dev_inst *sdi)
  34 {
  35         GVariant *gvar;
  36         uint64_t time_msec;
  37         uint64_t samplerate;
  38         struct sr_dev_driver *driver;
  39
  40         driver = sr_dev_inst_driver_get(sdi);
  41
  42         if (!(time_msec = sr_parse_timestring(opt_time))) {
  43                 g_critical("Invalid time '%s'", opt_time);
  44                 return SR_ERR;
  45         }
  46
  47         if (config_key_has_cap(driver, sdi, NULL, SR_CONF_LIMIT_MSEC, SR_CONF_SET)) {
  48                 gvar = g_variant_new_uint64(time_msec);
  49                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_MSEC, gvar) != SR_OK) {
  50                         g_critical("Failed to configure time limit.");
  51                         return SR_ERR;
  52                 }
  53         } else if (config_key_has_cap(driver, sdi, NULL, SR_CONF_SAMPLERATE,
  54                         SR_CONF_GET | SR_CONF_SET)) {
  55                 /* Convert to samples based on the samplerate. */
  56                 sr_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE, &gvar);
  57                 samplerate = g_variant_get_uint64(gvar);
  58                 g_variant_unref(gvar);
  59                 limit_samples = (samplerate) * time_msec / (uint64_t)1000;
  60                 if (limit_samples == 0) {
  61                         g_critical("Not enough time at this samplerate.");
  62                         return SR_ERR;
  63                 }
  64                 gvar = g_variant_new_uint64(limit_samples);
  65                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
  66                         g_critical("Failed to configure time-based sample limit.");
  67                         return SR_ERR;
  68                 }
  69         } else {
  70                 g_critical("This device does not support time limits.");
  71                 return SR_ERR;
  72         }
  73
  74         return SR_OK;
  75 }
  76
  77 const struct sr_output *setup_output_format(const struct sr_dev_inst *sdi)
  78 {
  79         const struct sr_output_module *omod;
  80         const struct sr_option **options;
  81         const struct sr_output *o;
  82         GHashTable *fmtargs, *fmtopts;
  83         char *fmtspec;
  84
  85         if (!opt_output_format) {
  86                 if (opt_output_file) {
  87                         opt_output_format = DEFAULT_OUTPUT_FORMAT_FILE;
  88                 } else {
  89                         opt_output_format = DEFAULT_OUTPUT_FORMAT_NOFILE;
  90                 }
  91         }
  92
  93         fmtargs = parse_generic_arg(opt_output_format, TRUE);
  94         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
  95         if (!fmtspec)
  96                 g_critical("Invalid output format.");
  97         if (!(omod = sr_output_find(fmtspec)))
  98                 g_critical("Unknown output module '%s'.", fmtspec);
  99         g_hash_table_remove(fmtargs, "sigrok_key");
 100         if ((options = sr_output_options_get(omod))) {
 101                 fmtopts = generic_arg_to_opt(options, fmtargs);
 102                 sr_output_options_free(options);
 103         } else
 104                 fmtopts = NULL;
 105         o = sr_output_new(omod, fmtopts, sdi, opt_output_file);
 106
 107         if (fmtopts)
 108                 g_hash_table_destroy(fmtopts);
 109         g_hash_table_destroy(fmtargs);
 110
 111         return o;
 112 }
 113
 114 const struct sr_transform *setup_transform_module(const struct sr_dev_inst *sdi)
 115 {
 116         const struct sr_transform_module *tmod;
 117         const struct sr_option **options;
 118         const struct sr_transform *t;
 119         GHashTable *fmtargs, *fmtopts;
 120         char *fmtspec;
 121
 122         if (!opt_transform_module)
 123                 opt_transform_module = "nop";
 124
 125         fmtargs = parse_generic_arg(opt_transform_module, TRUE);
 126         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
 127         if (!fmtspec)
 128                 g_critical("Invalid transform module.");
 129         if (!(tmod = sr_transform_find(fmtspec)))
 130                 g_critical("Unknown transform module '%s'.", fmtspec);
 131         g_hash_table_remove(fmtargs, "sigrok_key");
 132         if ((options = sr_transform_options_get(tmod))) {
 133                 fmtopts = generic_arg_to_opt(options, fmtargs);
 134                 sr_transform_options_free(options);
 135         } else
 136                 fmtopts = NULL;
 137         t = sr_transform_new(tmod, fmtopts, sdi);
 138         if (fmtopts)
 139                 g_hash_table_destroy(fmtopts);
 140         g_hash_table_destroy(fmtargs);
 141
 142         return t;
 143 }
 144
 145 void datafeed_in(const struct sr_dev_inst *sdi,
 146                 const struct sr_datafeed_packet *packet, void *cb_data)
 147 {
 148         const struct sr_datafeed_meta *meta;
 149         const struct sr_datafeed_logic *logic;
 150         const struct sr_datafeed_analog *analog;
 151         struct sr_session *session;
 152         struct sr_config *src;
 153         static const struct sr_output *o = NULL;
 154         static const struct sr_output *oa = NULL;
 155         static uint64_t rcvd_samples_logic = 0;
 156         static uint64_t rcvd_samples_analog = 0;
 157         static uint64_t samplerate = 0;
 158         static int triggered = 0;
 159         static FILE *outfile = NULL;
 160         GSList *l;
 161         GString *out;
 162         GVariant *gvar;
 163         uint64_t end_sample;
 164         uint64_t input_len;
 165         struct sr_dev_driver *driver;
 166
 167         driver = sr_dev_inst_driver_get(sdi);
 168
 169         /* If the first packet to come in isn't a header, don't even try. */
 170         if (packet->type != SR_DF_HEADER && !o)
 171                 return;
 172
 173         session = cb_data;
 174         switch (packet->type) {
 175         case SR_DF_HEADER:
 176                 g_debug("cli: Received SR_DF_HEADER.");
 177                 if (!(o = setup_output_format(sdi)))
 178                         g_critical("Failed to initialize output module.");
 179
 180                 /* Set up backup analog output module. */
 181                 oa = sr_output_new(sr_output_find("analog"), NULL, sdi, NULL);
 182
 183                 if (opt_output_file)
 184                         outfile = g_fopen(opt_output_file, "wb");
 185                 else
 186                         outfile = stdout;
 187
 188                 rcvd_samples_logic = rcvd_samples_analog = 0;
 189
 190                 if (maybe_config_get(driver, sdi, NULL, SR_CONF_SAMPLERATE,
 191                                 &gvar) == SR_OK) {
 192                         samplerate = g_variant_get_uint64(gvar);
 193                         g_variant_unref(gvar);
 194                 }
 195
 196 #ifdef HAVE_SRD
 197                 if (opt_pds) {
 198                         if (samplerate) {
 199                                 if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
 200                                                 g_variant_new_uint64(samplerate)) != SRD_OK) {
 201                                         g_critical("Failed to configure decode session.");
 202                                         break;
 203                                 }
 204                         }
 205                         if (srd_session_start(srd_sess) != SRD_OK) {
 206                                 g_critical("Failed to start decode session.");
 207                                 break;
 208                         }
 209                 }
 210 #endif
 211                 break;
 212
 213         case SR_DF_META:
 214                 g_debug("cli: Received SR_DF_META.");
 215                 meta = packet->payload;
 216                 for (l = meta->config; l; l = l->next) {
 217                         src = l->data;
 218                         switch (src->key) {
 219                         case SR_CONF_SAMPLERATE:
 220                                 samplerate = g_variant_get_uint64(src->data);
 221                                 g_debug("cli: Got samplerate %"PRIu64" Hz.", samplerate);
 222 #ifdef HAVE_SRD
 223                                 if (opt_pds) {
 224                                         if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
 225                                                         g_variant_new_uint64(samplerate)) != SRD_OK) {
 226                                                 g_critical("Failed to pass samplerate to decoder.");
 227                                         }
 228                                 }
 229 #endif
 230                                 break;
 231                         case SR_CONF_SAMPLE_INTERVAL:
 232                                 samplerate = g_variant_get_uint64(src->data);
 233                                 g_debug("cli: Got sample interval %"PRIu64" ms.", samplerate);
 234                                 break;
 235                         default:
 236                                 /* Unknown metadata is not an error. */
 237                                 break;
 238                         }
 239                 }
 240                 break;
 241
 242         case SR_DF_TRIGGER:
 243                 g_debug("cli: Received SR_DF_TRIGGER.");
 244                 triggered = 1;
 245                 break;
 246
 247         case SR_DF_LOGIC:
 248                 logic = packet->payload;
 249                 g_message("cli: Received SR_DF_LOGIC (%"PRIu64" bytes, unitsize = %d).",
 250                                 logic->length, logic->unitsize);
 251                 if (logic->length == 0)
 252                         break;
 253
 254                 /* Don't store any samples until triggered. */
 255                 if (opt_wait_trigger && !triggered)
 256                         break;
 257
 258                 if (limit_samples && rcvd_samples_logic >= limit_samples)
 259                         break;
 260
 261                 end_sample = rcvd_samples_logic + logic->length / logic->unitsize;
 262                 /* Cut off last packet according to the sample limit. */
 263                 if (limit_samples && end_sample > limit_samples)
 264                         end_sample = limit_samples;
 265                 input_len = (end_sample - rcvd_samples_logic) * logic->unitsize;
 266
 267                 if (opt_pds) {
 268 #ifdef HAVE_SRD
 269                         if (srd_session_send(srd_sess, rcvd_samples_logic, end_sample,
 270                                         logic->data, input_len) != SRD_OK)
 271                                 sr_session_stop(session);
 272 #endif
 273                 }
 274
 275                 rcvd_samples_logic = end_sample;
 276                 break;
 277
 278         case SR_DF_ANALOG:
 279                 analog = packet->payload;
 280                 g_message("cli: Received SR_DF_ANALOG (%d samples).", analog->num_samples);
 281                 if (analog->num_samples == 0)
 282                         break;
 283
 284                 if (limit_samples && rcvd_samples_analog >= limit_samples)
 285                         break;
 286
 287                 rcvd_samples_analog += analog->num_samples;
 288                 break;
 289
 290         case SR_DF_FRAME_BEGIN:
 291                 g_debug("cli: Received SR_DF_FRAME_BEGIN.");
 292                 break;
 293
 294         case SR_DF_FRAME_END:
 295                 g_debug("cli: Received SR_DF_FRAME_END.");
 296                 break;
 297
 298         default:
 299                 break;
 300         }
 301
 302         if (o && outfile && !opt_pds) {
 303                 if (sr_output_send(o, packet, &out) == SR_OK) {
 304                         if (!out || (out->len == 0
 305                                         && !opt_output_format
 306                                         && packet->type == SR_DF_ANALOG)) {
 307                                 /*
 308                                  * The user didn't specify an output module,
 309                                  * but needs to see this analog data.
 310                                  */
 311                                 sr_output_send(oa, packet, &out);
 312                         }
 313                         if (out && out->len > 0) {
 314                                 fwrite(out->str, 1, out->len, outfile);
 315                                 fflush(outfile);
 316                         }
 317                         if (out)
 318                                 g_string_free(out, TRUE);
 319                 }
 320         }
 321
 322         /*
 323          * SR_DF_END needs to be handled after the output module's receive()
 324          * is called, so it can properly clean up that module.
 325          */
 326         if (packet->type == SR_DF_END) {
 327                 g_debug("cli: Received SR_DF_END.");
 328
 329                 if (o)
 330                         sr_output_free(o);
 331                 o = NULL;
 332
 333                 sr_output_free(oa);
 334                 oa = NULL;
 335
 336                 if (outfile && outfile != stdout)
 337                         fclose(outfile);
 338
 339                 if (limit_samples) {
 340                         if (rcvd_samples_logic > 0 && rcvd_samples_logic < limit_samples)
 341                                 g_warning("Device only sent %" PRIu64 " samples.",
 342                                            rcvd_samples_logic);
 343                         else if (rcvd_samples_analog > 0 && rcvd_samples_analog < limit_samples)
 344                                 g_warning("Device only sent %" PRIu64 " samples.",
 345                                            rcvd_samples_analog);
 346                 }
 347         }
 348
 349 }
 350
 351 int opt_to_gvar(char *key, char *value, struct sr_config *src)
 352 {
 353         const struct sr_config_info *srci;
 354         double tmp_double, dlow, dhigh;
 355         uint64_t tmp_u64, p, q, low, high;
 356         GVariant *rational[2], *range[2];
 357         GVariantBuilder *vbl;
 358         gboolean tmp_bool;
 359         gchar **keyval;
 360         int ret;
 361
 362         if (!(srci = sr_config_info_name_get(key))) {
 363                 g_critical("Unknown device option '%s'.", (char *) key);
 364                 return -1;
 365         }
 366         src->key = srci->key;
 367
 368         if ((!value || strlen(value) == 0) &&
 369                 (srci->datatype != SR_T_BOOL)) {
 370                 g_critical("Option '%s' needs a value.", (char *)key);
 371                 return -1;
 372         }
 373
 374         ret = 0;
 375         switch (srci->datatype) {
 376         case SR_T_UINT64:
 377                 ret = sr_parse_sizestring(value, &tmp_u64);
 378                 if (ret != 0)
 379                         break;
 380                 src->data = g_variant_new_uint64(tmp_u64);
 381                 break;
 382         case SR_T_INT32:
 383                 ret = sr_parse_sizestring(value, &tmp_u64);
 384                 if (ret != 0)
 385                         break;
 386                 src->data = g_variant_new_int32(tmp_u64);
 387                 break;
 388         case SR_T_STRING:
 389                 src->data = g_variant_new_string(value);
 390                 break;
 391         case SR_T_BOOL:
 392                 if (!value)
 393                         tmp_bool = TRUE;
 394                 else
 395                         tmp_bool = sr_parse_boolstring(value);
 396                 src->data = g_variant_new_boolean(tmp_bool);
 397                 break;
 398         case SR_T_FLOAT:
 399                 tmp_double = strtof(value, NULL);
 400                 src->data = g_variant_new_double(tmp_double);
 401                 break;
 402         case SR_T_RATIONAL_PERIOD:
 403                 if ((ret = sr_parse_period(value, &p, &q)) != SR_OK)
 404                         break;
 405                 rational[0] = g_variant_new_uint64(p);
 406                 rational[1] = g_variant_new_uint64(q);
 407                 src->data = g_variant_new_tuple(rational, 2);
 408                 break;
 409         case SR_T_RATIONAL_VOLT:
 410                 if ((ret = sr_parse_voltage(value, &p, &q)) != SR_OK)
 411                         break;
 412                 rational[0] = g_variant_new_uint64(p);
 413                 rational[1] = g_variant_new_uint64(q);
 414                 src->data = g_variant_new_tuple(rational, 2);
 415                 break;
 416         case SR_T_UINT64_RANGE:
 417                 if (sscanf(value, "%"PRIu64"-%"PRIu64, &low, &high) != 2) {
 418                         ret = -1;
 419                         break;
 420                 } else {
 421                         range[0] = g_variant_new_uint64(low);
 422                         range[1] = g_variant_new_uint64(high);
 423                         src->data = g_variant_new_tuple(range, 2);
 424                 }
 425                 break;
 426         case SR_T_DOUBLE_RANGE:
 427                 if (sscanf(value, "%lf-%lf", &dlow, &dhigh) != 2) {
 428                         ret = -1;
 429                         break;
 430                 } else {
 431                         range[0] = g_variant_new_double(dlow);
 432                         range[1] = g_variant_new_double(dhigh);
 433                         src->data = g_variant_new_tuple(range, 2);
 434                 }
 435                 break;
 436         case SR_T_KEYVALUE:
 437                 /* Expects the argument to be in the form of key=value. */
 438                 keyval = g_strsplit(value, "=", 2);
 439                 if (!keyval[0] || !keyval[1]) {
 440                         g_strfreev(keyval);
 441                         ret = -1;
 442                         break;
 443                 } else {
 444                         vbl = g_variant_builder_new(G_VARIANT_TYPE_DICTIONARY);
 445                         g_variant_builder_add(vbl, "{ss}",
 446                                               keyval[0], keyval[1]);
 447                         src->data = g_variant_builder_end(vbl);
 448                         g_strfreev(keyval);
 449                 }
 450                 break;
 451         default:
 452                 g_critical("Unknown data type specified for option '%s' "
 453                            "(driver implementation bug?).", key);
 454                 ret = -1;
 455         }
 456
 457         if (ret < 0)
 458                 g_critical("Invalid value: '%s' for option '%s'", value, key);
 459
 460         return ret;
 461 }
 462
 463 int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
 464 {
 465         struct sr_config src;
 466         struct sr_channel_group *cg;
 467         GHashTableIter iter;
 468         gpointer key, value;
 469         int ret;
 470
 471         g_hash_table_iter_init(&iter, args);
 472         while (g_hash_table_iter_next(&iter, &key, &value)) {
 473                 if ((ret = opt_to_gvar(key, value, &src)) != 0)
 474                         return ret;
 475                 cg = select_channel_group(sdi);
 476                 if ((ret = maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, cg,
 477                                 src.key, src.data)) != SR_OK) {
 478                         g_critical("Failed to set device option '%s': %s.",
 479                                    (char *)key, sr_strerror(ret));
 480                         return ret;
 481                 }
 482         }
 483
 484         return SR_OK;
 485 }
 486
 487 void run_session(void)
 488 {
 489         GSList *devices, *real_devices, *sd;
 490         GHashTable *devargs;
 491         GVariant *gvar;
 492         struct sr_session *session;
 493         struct sr_trigger *trigger;
 494         struct sr_dev_inst *sdi;
 495         uint64_t min_samples, max_samples;
 496         gsize n_elements, i;
 497         const uint32_t *dev_opts;
 498         int is_demo_dev;
 499         struct sr_dev_driver *driver;
 500         const struct sr_transform *t;
 501
 502         devices = device_scan();
 503         if (!devices) {
 504                 g_critical("No devices found.");
 505                 return;
 506         }
 507
 508         real_devices = NULL;
 509         for (sd = devices; sd; sd = sd->next) {
 510                 sdi = sd->data;
 511
 512                 driver = sr_dev_inst_driver_get(sdi);
 513
 514                 if (sr_config_list(driver, sdi, NULL, SR_CONF_DEVICE_OPTIONS, &gvar) != SR_OK) {
 515                         g_critical("Failed to query list device options.");
 516                         return;
 517                 }
 518
 519                 dev_opts = g_variant_get_fixed_array(gvar, &n_elements, sizeof(uint32_t));
 520
 521                 is_demo_dev = 0;
 522                 for (i = 0; i < n_elements; i++) {
 523                         if (dev_opts[i] == SR_CONF_DEMO_DEV)
 524                                 is_demo_dev = 1;
 525                 }
 526
 527                 g_variant_unref(gvar);
 528
 529                 if (!is_demo_dev)
 530                         real_devices = g_slist_append(real_devices, sdi);
 531         }
 532
 533         if (g_slist_length(devices) > 1) {
 534                 if (g_slist_length(real_devices) != 1) {
 535                         g_critical("sigrok-cli only supports one device for capturing.");
 536                         return;
 537                 } else {
 538                         /* We only have one non-demo device. */
 539                         g_slist_free(devices);
 540                         devices = real_devices;
 541                         real_devices = NULL;
 542                 }
 543         }
 544
 545         sdi = devices->data;
 546         g_slist_free(devices);
 547         g_slist_free(real_devices);
 548
 549         sr_session_new(sr_ctx, &session);
 550         sr_session_datafeed_callback_add(session, datafeed_in, NULL);
 551
 552         if (sr_dev_open(sdi) != SR_OK) {
 553                 g_critical("Failed to open device.");
 554                 return;
 555         }
 556
 557         if (sr_session_dev_add(session, sdi) != SR_OK) {
 558                 g_critical("Failed to add device to session.");
 559                 sr_session_destroy(session);
 560                 return;
 561         }
 562
 563         if (opt_config) {
 564                 if ((devargs = parse_generic_arg(opt_config, FALSE))) {
 565                         if (set_dev_options(sdi, devargs) != SR_OK)
 566                                 return;
 567                         g_hash_table_destroy(devargs);
 568                 }
 569         }
 570
 571         if (select_channels(sdi) != SR_OK) {
 572                 g_critical("Failed to set channels.");
 573                 sr_session_destroy(session);
 574                 return;
 575         }
 576
 577         if (opt_triggers) {
 578                 if (!parse_triggerstring(sdi, opt_triggers, &trigger)) {
 579                         sr_session_destroy(session);
 580                         return;
 581                 }
 582                 if (sr_session_trigger_set(session, trigger) != SR_OK) {
 583                         sr_session_destroy(session);
 584                         return;
 585                 }
 586         }
 587
 588         if (opt_continuous) {
 589                 if (!sr_dev_has_option(sdi, SR_CONF_CONTINUOUS)) {
 590                         g_critical("This device does not support continuous sampling.");
 591                         sr_session_destroy(session);
 592                         return;
 593                 }
 594         }
 595
 596         if (opt_time) {
 597                 if (set_limit_time(sdi) != SR_OK) {
 598                         sr_session_destroy(session);
 599                         return;
 600                 }
 601         }
 602
 603         if (opt_samples) {
 604                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)) {
 605                         g_critical("Invalid sample limit '%s'.", opt_samples);
 606                         sr_session_destroy(session);
 607                         return;
 608                 }
 609                 if (maybe_config_list(driver, sdi, NULL, SR_CONF_LIMIT_SAMPLES,
 610                                 &gvar) == SR_OK) {
 611                         /*
 612                          * The device has no compression, or compression is turned
 613                          * off, and publishes its sample memory size.
 614                          */
 615                         g_variant_get(gvar, "(tt)", &min_samples, &max_samples);
 616                         g_variant_unref(gvar);
 617                         if (limit_samples < min_samples) {
 618                                 g_critical("The device stores at least %"PRIu64
 619                                                 " samples with the current settings.", min_samples);
 620                         }
 621                         if (limit_samples > max_samples) {
 622                                 g_critical("The device can store only %"PRIu64
 623                                                 " samples with the current settings.", max_samples);
 624                         }
 625                 }
 626                 gvar = g_variant_new_uint64(limit_samples);
 627                 if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
 628                         g_critical("Failed to configure sample limit.");
 629                         sr_session_destroy(session);
 630                         return;
 631                 }
 632         }
 633
 634         if (opt_frames) {
 635                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)) {
 636                         g_critical("Invalid sample limit '%s'.", opt_samples);
 637                         sr_session_destroy(session);
 638                         return;
 639                 }
 640                 gvar = g_variant_new_uint64(limit_frames);
 641                 if (maybe_config_set(sr_dev_inst_driver_get(sdi), sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) {
 642                         g_critical("Failed to configure frame limit.");
 643                         sr_session_destroy(session);
 644                         return;
 645                 }
 646         }
 647
 648         if (!(t = setup_transform_module(sdi)))
 649                 g_critical("Failed to initialize transform module.");
 650
 651         if (sr_session_start(session) != SR_OK) {
 652                 g_critical("Failed to start session.");
 653                 sr_session_destroy(session);
 654                 return;
 655         }
 656
 657         if (opt_continuous)
 658                 add_anykey(session);
 659
 660         sr_session_run(session);
 661
 662         if (opt_continuous)
 663                 clear_anykey();
 664
 665         sr_session_datafeed_callback_remove_all(session);
 666         sr_session_destroy(session);
 667
 668 }