vlc/test/libvlc/media_discoverer.c

/*****************************************************************************
 * media_discoverer.c - libvlc smoke test
 *****************************************************************************
 * Copyright © 2016 VLC authors, and VideoLAN
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#include "test.h"

#include <string.h>

static void
ml_item_event(const struct libvlc_event_t *p_ev, const char *psz_event)
{
    char *psz_mrl = libvlc_media_get_mrl(p_ev->u.media_list_item_added.item);
    assert(psz_mrl);

    test_log("item %s(%d): '%s'\n", psz_event,
             p_ev->u.media_list_item_added.index, psz_mrl);
    free(psz_mrl);
}

static void
ml_item_added(const struct libvlc_event_t *p_ev, void *p_data)
{
    (void) p_data;
    ml_item_event(p_ev, "added");
}

static void
ml_item_deleted(const struct libvlc_event_t *p_ev, void *p_data)
{
    (void) p_data;
    ml_item_event(p_ev, "deleted");
}

static void
test_discoverer(libvlc_instance_t *p_vlc, const char *psz_name, bool b_wait)
{
    test_log("creating and starting discoverer %s\n", psz_name);

    libvlc_media_discoverer_t *p_md =
        libvlc_media_discoverer_new(p_vlc, psz_name);
    assert(p_md != NULL);

    libvlc_media_list_t *p_ml = libvlc_media_discoverer_media_list(p_md);
    assert(p_ml != NULL);

    libvlc_event_manager_t *p_evm = libvlc_media_list_event_manager(p_ml);
    assert(p_evm);

    int i_ret;
    i_ret = libvlc_event_attach(p_evm, libvlc_MediaListItemAdded,
                                ml_item_added, NULL);
    assert(i_ret == 0);
    i_ret = libvlc_event_attach(p_evm, libvlc_MediaListItemDeleted,
                                ml_item_deleted, NULL);
    assert(i_ret == 0);

    if (libvlc_media_discoverer_start(p_md) == -1)
    {
        test_log("warn: could not start md (not critical)\n");
    }
    else
    {
        assert(libvlc_media_discoverer_is_running(p_md));
        if (b_wait)
        {
            test_log("Press any keys to stop\n");
            getchar();
        }
        libvlc_media_discoverer_stop(p_md);
    }

    libvlc_event_detach(p_evm, libvlc_MediaListItemAdded,
                        ml_item_added, NULL);
    libvlc_event_detach(p_evm, libvlc_MediaListItemDeleted,
                        ml_item_deleted, NULL);

    libvlc_media_list_release(p_ml);
    libvlc_media_discoverer_release(p_md);
}

int
main(int i_argc, char *ppsz_argv[])
{
    test_init();

    char *psz_test_name = i_argc > 1 ? ppsz_argv[1] : NULL;

    libvlc_instance_t *p_vlc = libvlc_new(test_defaults_nargs,
                                          test_defaults_args);
    assert(p_vlc != NULL);

    if (psz_test_name != NULL)
    {
        /* Test a specific service discovery from command line */
        alarm(0);
        test_discoverer(p_vlc, psz_test_name, true);
        libvlc_release(p_vlc);
        return 0;
    }

    for(libvlc_media_discoverer_category_t i_cat = libvlc_media_discoverer_devices;
        i_cat <= libvlc_media_discoverer_localdirs; i_cat ++)
    {
        test_log("== getting list of media_discoverer for %d category ==\n", i_cat);

        libvlc_media_discoverer_description_t **pp_services;
        ssize_t i_count =
            libvlc_media_discoverer_list_get(p_vlc, i_cat, &pp_services);
        if (i_count <= 0)
        {
            test_log("warn: no discoverers (not critical)\n");
            continue;
        }
        assert(pp_services != NULL);

        for (unsigned int i = 0; i < i_count; ++i)
        {
            libvlc_media_discoverer_description_t *p_service = pp_services[i];

            assert(i_cat == p_service->i_cat);
            test_log("= discoverer: name: '%s', longname: '%s' =\n",
                     p_service->psz_name, p_service->psz_longname);

#if 0
            if (!strncasecmp(p_service->psz_name, "podcast", 7)
             || i_cat == libvlc_media_discoverer_lan)
            {
                /* see comment in libvlc_media_discoverer_new() */
                continue;
            }
            test_discoverer(p_vlc, p_service->psz_name, false);
#endif
        }
        libvlc_media_discoverer_list_release(pp_services, i_count);
    }
    libvlc_release(p_vlc);

    return 0;
}