Ejemplo n.º 1
0
pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *name, pa_proplist *p) {
    pa_context *c;

    pa_assert(mainloop);

    if (pa_detect_fork())
        return NULL;

    pa_init_i18n();

    c = pa_xnew0(pa_context, 1);
    PA_REFCNT_INIT(c);

    c->proplist = p ? pa_proplist_copy(p) : pa_proplist_new();

    if (name)
        pa_proplist_sets(c->proplist, PA_PROP_APPLICATION_NAME, name);

#ifdef HAVE_DBUS
    c->system_bus = c->session_bus = NULL;
#endif
    c->mainloop = mainloop;
    c->playback_streams = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
    c->record_streams = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
    c->client_index = PA_INVALID_INDEX;
    c->use_rtclock = pa_mainloop_is_our_api(mainloop);

    PA_LLIST_HEAD_INIT(pa_stream, c->streams);
    PA_LLIST_HEAD_INIT(pa_operation, c->operations);

    c->error = PA_OK;
    c->state = PA_CONTEXT_UNCONNECTED;

    reset_callbacks(c);

#ifndef MSG_NOSIGNAL
#ifdef SIGPIPE
    pa_check_signal_is_blocked(SIGPIPE);
#endif
#endif

    c->conf = pa_client_conf_new();
    pa_client_conf_load(c->conf, true, true);

    c->srb_template.readfd = -1;
    c->srb_template.writefd = -1;

    if (!(c->mempool = pa_mempool_new(!c->conf->disable_shm, c->conf->shm_size))) {

        if (!c->conf->disable_shm)
            c->mempool = pa_mempool_new(false, c->conf->shm_size);

        if (!c->mempool) {
            context_free(c);
            return NULL;
        }
    }

    return c;
}
Ejemplo n.º 2
0
int main(int argc, char *argv[]) {
    pa_mempool *pool;
    pa_sample_spec a, b;
    pa_cvolume v;

    pa_log_set_level(PA_LOG_DEBUG);

    pa_assert_se(pool = pa_mempool_new(FALSE, 0));

    a.channels = b.channels = 1;
    a.rate = b.rate = 44100;

    v.channels = a.channels;
    v.values[0] = pa_sw_volume_from_linear(0.5);

    for (a.format = 0; a.format < PA_SAMPLE_MAX; a.format ++) {
        for (b.format = 0; b.format < PA_SAMPLE_MAX; b.format ++) {
            pa_resampler *forth, *back;
            pa_memchunk i, j, k;

            printf("=== %s -> %s -> %s -> /2\n",
                   pa_sample_format_to_string(a.format),
                   pa_sample_format_to_string(b.format),
                   pa_sample_format_to_string(a.format));

            pa_assert_se(forth = pa_resampler_new(pool, &a, NULL, &b, NULL, PA_RESAMPLER_AUTO, 0));
            pa_assert_se(back = pa_resampler_new(pool, &b, NULL, &a, NULL, PA_RESAMPLER_AUTO, 0));

            i.memblock = generate_block(pool, &a);
            i.length = pa_memblock_get_length(i.memblock);
            i.index = 0;
            pa_resampler_run(forth, &i, &j);
            pa_resampler_run(back, &j, &k);

            printf("before:  ");
            dump_block(&a, &i);
            printf("after :  ");
            dump_block(&b, &j);
            printf("reverse: ");
            dump_block(&a, &k);

            pa_memblock_unref(j.memblock);
            pa_memblock_unref(k.memblock);

            pa_volume_memchunk(&i, &a, &v);
            printf("volume:  ");
            dump_block(&a, &i);

            pa_memblock_unref(i.memblock);

            pa_resampler_free(forth);
            pa_resampler_free(back);
        }
    }

    pa_mempool_free(pool);

    return 0;
}
Ejemplo n.º 3
0
int main(int argc, char *argv[]) {

    static const pa_channel_map maps[] = {
        { 1, { PA_CHANNEL_POSITION_MONO } },
        { 2, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT } },
        { 3, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_CENTER } },
        { 3, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_LFE } },
        { 3, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_CENTER } },
        { 4, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_LFE } },
        { 4, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_REAR_CENTER } },
        { 4, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT } },
        { 5, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_CENTER } },
        { 5, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE } },
        { 6, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_CENTER } },
        { 8, { PA_CHANNEL_POSITION_LEFT, PA_CHANNEL_POSITION_RIGHT, PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT, PA_CHANNEL_POSITION_LFE, PA_CHANNEL_POSITION_CENTER, PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT } },
        { 0, { 0 } }
    };

    unsigned i, j;
    pa_mempool *pool;

    pa_log_set_level(PA_LOG_DEBUG);

    pa_assert_se(pool = pa_mempool_new(false, 0));

    for (i = 0; maps[i].channels > 0; i++)
        for (j = 0; maps[j].channels > 0; j++) {
            char a[PA_CHANNEL_MAP_SNPRINT_MAX], b[PA_CHANNEL_MAP_SNPRINT_MAX];
            pa_resampler *r;
            pa_sample_spec ss1, ss2;

            pa_log_info("Converting from '%s' to '%s'.\n", pa_channel_map_snprint(a, sizeof(a), &maps[i]), pa_channel_map_snprint(b, sizeof(b), &maps[j]));

            ss1.channels = maps[i].channels;
            ss2.channels = maps[j].channels;

            ss1.rate = ss2.rate = 44100;
            ss1.format = ss2.format = PA_SAMPLE_S16NE;

            r = pa_resampler_new(pool, &ss1, &maps[i], &ss2, &maps[j], PA_RESAMPLER_AUTO, 0);

            /* We don't really care for the resampler. We just want to
             * see the remixing debug output. */

            pa_resampler_free(r);
        }

    pa_mempool_free(pool);

    return 0;
}
Ejemplo n.º 4
0
void mi6k_init()
{
    int result;
    struct sched_param param;

    mi6k.pool = pa_mempool_new(0);

    mi6k.device = fopen("/dev/mi6k0", "wb");
    if (!mi6k.device) {
	perror("Opening MI6K");
	exit(1);
    }

    mi6k_frame_new(&mi6k.blank_frame, NULL, NULL);

    mi6k.queue = pa_memblockq_new(0,                           /* Default index */
				  FRAME_SIZE * 2.5,            /* Max length: 2.5 frames */
				  FRAME_SIZE,                  /* Target length: 1 frame */
				  1,                           /* Base value */
				  0,                           /* No prebuffering */
				  1,                           /* Minimal request */
				  mi6k.blank_frame.memblock);  /* "Silence" frame, all blank */
    assert(mi6k.queue);

    /*
     * Real-time scheduling priority dramatically increases the speed of the MI6K
     * output. This is because our kernel module is a piece of crap, and relies
     * on low-latency control requests rather than thinking ahead and scheduling
     * URBs for future requests ahead of time.
     */
    sched_getparam(0, &param);
    param.sched_priority = 10;
    if (sched_setscheduler(0, SCHED_FIFO, &param) < 0) {
      perror("sched_setscheduler");
      exit(1);
    }

    result = pthread_create(&mi6k.thread, NULL, mi6k_render_thread, NULL);
    assert(!result);
}
Ejemplo n.º 5
0
int main(int argc, char *argv[]) {
    pa_mempool *pool_a, *pool_b, *pool_c;
    unsigned id_a, id_b, id_c;
    pa_memexport *export_a, *export_b;
    pa_memimport *import_b, *import_c;
    pa_memblock *mb_a, *mb_b, *mb_c;
    int r, i;
    pa_memblock* blocks[5];
    uint32_t id, shm_id;
    size_t offset, size;
    char *x;

    const char txt[] = "This is a test!";

    pool_a = pa_mempool_new(1);
    pool_b = pa_mempool_new(1);
    pool_c = pa_mempool_new(1);

    pa_mempool_get_shm_id(pool_a, &id_a);
    pa_mempool_get_shm_id(pool_b, &id_b);
    pa_mempool_get_shm_id(pool_c, &id_c);

    pa_assert(pool_a && pool_b && pool_c);

    blocks[0] = pa_memblock_new_fixed(pool_a, (void*) txt, sizeof(txt), 1);

    blocks[1] = pa_memblock_new(pool_a, sizeof(txt));
    x = pa_memblock_acquire(blocks[1]);
    snprintf(x, pa_memblock_get_length(blocks[1]), "%s", txt);
    pa_memblock_release(blocks[1]);

    blocks[2] = pa_memblock_new_pool(pool_a, sizeof(txt));
    x = pa_memblock_acquire(blocks[2]);
    snprintf(x, pa_memblock_get_length(blocks[2]), "%s", txt);
    pa_memblock_release(blocks[2]);

    blocks[3] = pa_memblock_new_malloced(pool_a, pa_xstrdup(txt), sizeof(txt));
    blocks[4] = NULL;

    for (i = 0; blocks[i]; i++) {
        printf("Memory block %u\n", i);

        mb_a = blocks[i];
        pa_assert(mb_a);

        export_a = pa_memexport_new(pool_a, revoke_cb, (void*) "A");
        export_b = pa_memexport_new(pool_b, revoke_cb, (void*) "B");

        pa_assert(export_a && export_b);

        import_b = pa_memimport_new(pool_b, release_cb, (void*) "B");
        import_c = pa_memimport_new(pool_c, release_cb, (void*) "C");

        pa_assert(import_b && import_c);

        r = pa_memexport_put(export_a, mb_a, &id, &shm_id, &offset, &size);
        pa_assert(r >= 0);
        pa_assert(shm_id == id_a);

        printf("A: Memory block exported as %u\n", id);

        mb_b = pa_memimport_get(import_b, id, shm_id, offset, size);
        pa_assert(mb_b);
        r = pa_memexport_put(export_b, mb_b, &id, &shm_id, &offset, &size);
        pa_assert(r >= 0);
        pa_assert(shm_id == id_a || shm_id == id_b);
        pa_memblock_unref(mb_b);

        printf("B: Memory block exported as %u\n", id);

        mb_c = pa_memimport_get(import_c, id, shm_id, offset, size);
        pa_assert(mb_c);
        x = pa_memblock_acquire(mb_c);
        printf("1 data=%s\n", x);
        pa_memblock_release(mb_c);

        print_stats(pool_a, "A");
        print_stats(pool_b, "B");
        print_stats(pool_c, "C");

        pa_memexport_free(export_b);
        x = pa_memblock_acquire(mb_c);
        printf("2 data=%s\n", x);
        pa_memblock_release(mb_c);
        pa_memblock_unref(mb_c);

        pa_memimport_free(import_b);

        pa_memblock_unref(mb_a);

        pa_memimport_free(import_c);
        pa_memexport_free(export_a);
    }

    printf("vaccuuming...\n");

    pa_mempool_vacuum(pool_a);
    pa_mempool_vacuum(pool_b);
    pa_mempool_vacuum(pool_c);

    printf("vaccuuming done...\n");

    pa_mempool_free(pool_a);
    pa_mempool_free(pool_b);
    pa_mempool_free(pool_c);

    return 0;
}
Ejemplo n.º 6
0
int main(int argc, char *argv[]) {
    pa_mempool *pool = NULL;
    pa_sample_spec a, b;
    int ret = 1, c;
    bool all_formats = true;
    pa_resample_method_t method;
    int seconds;
    unsigned crossover_freq = 120;

    static const struct option long_options[] = {
        {"help",                  0, NULL, 'h'},
        {"verbose",               0, NULL, 'v'},
        {"version",               0, NULL, ARG_VERSION},
        {"from-rate",             1, NULL, ARG_FROM_SAMPLERATE},
        {"from-format",           1, NULL, ARG_FROM_SAMPLEFORMAT},
        {"from-channels",         1, NULL, ARG_FROM_CHANNELS},
        {"to-rate",               1, NULL, ARG_TO_SAMPLERATE},
        {"to-format",             1, NULL, ARG_TO_SAMPLEFORMAT},
        {"to-channels",           1, NULL, ARG_TO_CHANNELS},
        {"seconds",               1, NULL, ARG_SECONDS},
        {"resample-method",       1, NULL, ARG_RESAMPLE_METHOD},
        {"dump-resample-methods", 0, NULL, ARG_DUMP_RESAMPLE_METHODS},
        {NULL,                    0, NULL, 0}
    };

    setlocale(LC_ALL, "");
#ifdef ENABLE_NLS
    bindtextdomain(GETTEXT_PACKAGE, PULSE_LOCALEDIR);
#endif

    pa_log_set_level(PA_LOG_WARN);
    if (!getenv("MAKE_CHECK"))
        pa_log_set_level(PA_LOG_INFO);

    pa_assert_se(pool = pa_mempool_new(false, 0));

    a.channels = b.channels = 1;
    a.rate = b.rate = 44100;
    a.format = b.format = PA_SAMPLE_S16LE;

    method = PA_RESAMPLER_AUTO;
    seconds = 60;

    while ((c = getopt_long(argc, argv, "hv", long_options, NULL)) != -1) {

        switch (c) {
            case 'h' :
                help(argv[0]);
                ret = 0;
                goto quit;

            case 'v':
                pa_log_set_level(PA_LOG_DEBUG);
                break;

            case ARG_VERSION:
                printf(_("%s %s\n"), argv[0], PACKAGE_VERSION);
                ret = 0;
                goto quit;

            case ARG_DUMP_RESAMPLE_METHODS:
                dump_resample_methods();
                ret = 0;
                goto quit;

            case ARG_FROM_CHANNELS:
                a.channels = (uint8_t) atoi(optarg);
                break;

            case ARG_FROM_SAMPLEFORMAT:
                a.format = pa_parse_sample_format(optarg);
                all_formats = false;
                break;

            case ARG_FROM_SAMPLERATE:
                a.rate = (uint32_t) atoi(optarg);
                break;

            case ARG_TO_CHANNELS:
                b.channels = (uint8_t) atoi(optarg);
                break;

            case ARG_TO_SAMPLEFORMAT:
                b.format = pa_parse_sample_format(optarg);
                all_formats = false;
                break;

            case ARG_TO_SAMPLERATE:
                b.rate = (uint32_t) atoi(optarg);
                break;

            case ARG_SECONDS:
                seconds = atoi(optarg);
                break;

            case ARG_RESAMPLE_METHOD:
                if (*optarg == '\0' || pa_streq(optarg, "help")) {
                    dump_resample_methods();
                    ret = 0;
                    goto quit;
                }
                method = pa_parse_resample_method(optarg);
                break;

            default:
                goto quit;
        }
    }

    ret = 0;
    pa_assert_se(pool = pa_mempool_new(false, 0));

    if (!all_formats) {

        pa_resampler *resampler;
        pa_memchunk i, j;
        pa_usec_t ts;

        pa_log_debug("Compilation CFLAGS: %s", PA_CFLAGS);
        pa_log_debug("=== %d seconds: %d Hz %d ch (%s) -> %d Hz %d ch (%s)", seconds,
                   a.rate, a.channels, pa_sample_format_to_string(a.format),
                   b.rate, b.channels, pa_sample_format_to_string(b.format));

        ts = pa_rtclock_now();
        pa_assert_se(resampler = pa_resampler_new(pool, &a, NULL, &b, NULL, crossover_freq, method, 0));
        pa_log_info("init: %llu", (long long unsigned)(pa_rtclock_now() - ts));

        i.memblock = pa_memblock_new(pool, pa_usec_to_bytes(1*PA_USEC_PER_SEC, &a));

        ts = pa_rtclock_now();
        i.length = pa_memblock_get_length(i.memblock);
        i.index = 0;
        while (seconds--) {
            pa_resampler_run(resampler, &i, &j);
            if (j.memblock)
                pa_memblock_unref(j.memblock);
        }
        pa_log_info("resampling: %llu", (long long unsigned)(pa_rtclock_now() - ts));
        pa_memblock_unref(i.memblock);

        pa_resampler_free(resampler);

        goto quit;
    }

    for (a.format = 0; a.format < PA_SAMPLE_MAX; a.format ++) {
        for (b.format = 0; b.format < PA_SAMPLE_MAX; b.format ++) {
            pa_resampler *forth, *back;
            pa_memchunk i, j, k;

            pa_log_debug("=== %s -> %s -> %s -> /2",
                       pa_sample_format_to_string(a.format),
                       pa_sample_format_to_string(b.format),
                       pa_sample_format_to_string(a.format));

            pa_assert_se(forth = pa_resampler_new(pool, &a, NULL, &b, NULL, crossover_freq, method, 0));
            pa_assert_se(back = pa_resampler_new(pool, &b, NULL, &a, NULL, crossover_freq, method, 0));

            i.memblock = generate_block(pool, &a);
            i.length = pa_memblock_get_length(i.memblock);
            i.index = 0;
            pa_resampler_run(forth, &i, &j);
            pa_resampler_run(back, &j, &k);

            dump_block("before", &a, &i);
            dump_block("after", &b, &j);
            dump_block("reverse", &a, &k);

            pa_memblock_unref(i.memblock);
            pa_memblock_unref(j.memblock);
            pa_memblock_unref(k.memblock);

            pa_resampler_free(forth);
            pa_resampler_free(back);
        }
    }

 quit:
    if (pool)
        pa_mempool_free(pool);

    return ret;
}
Ejemplo n.º 7
0
int main(int argc, char *argv[]) {
    int ret;

    pa_mempool *p;
    pa_memblockq *bq;
    pa_memchunk chunk1, chunk2, chunk3, chunk4;
    pa_memchunk silence;
    pa_sample_spec ss = {
        .format = PA_SAMPLE_S16LE,
        .rate = 48000,
        .channels = 1
    };

    pa_log_set_level(PA_LOG_DEBUG);

    p = pa_mempool_new(FALSE, 0);

    pa_assert_se(silence.memblock = pa_memblock_new_fixed(p, (char*) "__", 2, 1));
    silence.index = 0;
    silence.length = pa_memblock_get_length(silence.memblock);

    pa_assert_se(bq = pa_memblockq_new("test memblockq", 0, 200, 10, &ss, 4, 4, 40, &silence));

    pa_assert_se(chunk1.memblock = pa_memblock_new_fixed(p, (char*) "11", 2, 1));
    chunk1.index = 0;
    chunk1.length = 2;

    pa_assert_se(chunk2.memblock = pa_memblock_new_fixed(p, (char*) "XX22", 4, 1));
    chunk2.index = 2;
    chunk2.length = 2;

    pa_assert_se(chunk3.memblock = pa_memblock_new_fixed(p, (char*) "3333", 4, 1));
    chunk3.index = 0;
    chunk3.length = 4;

    pa_assert_se(chunk4.memblock = pa_memblock_new_fixed(p, (char*) "44444444", 8, 1));
    chunk4.index = 0;
    chunk4.length = 8;

    ret = pa_memblockq_push(bq, &chunk1);
    assert(ret == 0);

    ret = pa_memblockq_push(bq, &chunk2);
    assert(ret == 0);

    ret = pa_memblockq_push(bq, &chunk3);
    assert(ret == 0);

    ret = pa_memblockq_push(bq, &chunk4);
    assert(ret == 0);

    pa_memblockq_seek(bq, -6, 0, TRUE);
    ret = pa_memblockq_push(bq, &chunk3);
    assert(ret == 0);

    pa_memblockq_seek(bq, -2, 0, TRUE);
    ret = pa_memblockq_push(bq, &chunk1);
    assert(ret == 0);

    pa_memblockq_seek(bq, -10, 0, TRUE);
    ret = pa_memblockq_push(bq, &chunk4);
    assert(ret == 0);

    pa_memblockq_seek(bq, 10, 0, TRUE);

    ret = pa_memblockq_push(bq, &chunk1);
    assert(ret == 0);

    pa_memblockq_seek(bq, -6, 0, TRUE);
    ret = pa_memblockq_push(bq, &chunk2);
    assert(ret == 0);

    /* Test splitting */
    pa_memblockq_seek(bq, -12, 0, TRUE);
    ret = pa_memblockq_push(bq, &chunk1);
    assert(ret == 0);

    pa_memblockq_seek(bq, 20, 0, TRUE);

    /* Test merging */
    ret = pa_memblockq_push(bq, &chunk3);
    assert(ret == 0);
    pa_memblockq_seek(bq, -2, 0, TRUE);

    chunk3.index += 2;
    chunk3.length -= 2;
    ret = pa_memblockq_push(bq, &chunk3);
    assert(ret == 0);

    pa_memblockq_seek(bq, 30, PA_SEEK_RELATIVE, TRUE);

    dump(bq);

    pa_memblockq_rewind(bq, 52);

    dump(bq);

    pa_memblockq_free(bq);
    pa_memblock_unref(silence.memblock);
    pa_memblock_unref(chunk1.memblock);
    pa_memblock_unref(chunk2.memblock);
    pa_memblock_unref(chunk3.memblock);
    pa_memblock_unref(chunk4.memblock);

    pa_mempool_free(p);

    return 0;
}
Ejemplo n.º 8
0
pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *name, pa_proplist *p) {
    pa_context *c;
    pa_mem_type_t type;

    pa_assert(mainloop);

    if (pa_detect_fork())
        return NULL;

    pa_init_i18n();

    c = pa_xnew0(pa_context, 1);
    PA_REFCNT_INIT(c);

    c->proplist = p ? pa_proplist_copy(p) : pa_proplist_new();

    if (name)
        pa_proplist_sets(c->proplist, PA_PROP_APPLICATION_NAME, name);

#ifdef HAVE_DBUS
    c->system_bus = c->session_bus = NULL;
#endif
    c->mainloop = mainloop;
    c->playback_streams = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
    c->record_streams = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
    c->client_index = PA_INVALID_INDEX;
    c->use_rtclock = pa_mainloop_is_our_api(mainloop);

    PA_LLIST_HEAD_INIT(pa_stream, c->streams);
    PA_LLIST_HEAD_INIT(pa_operation, c->operations);

    c->error = PA_OK;
    c->state = PA_CONTEXT_UNCONNECTED;

    reset_callbacks(c);

#ifndef MSG_NOSIGNAL
#ifdef SIGPIPE
    pa_check_signal_is_blocked(SIGPIPE);
#endif
#endif

    c->conf = pa_client_conf_new();
    pa_client_conf_load(c->conf, true, true);

    c->srb_template.readfd = -1;
    c->srb_template.writefd = -1;

    c->memfd_on_local = (!c->conf->disable_memfd && pa_memfd_is_locally_supported());

    type = (c->conf->disable_shm) ? PA_MEM_TYPE_PRIVATE :
           ((!c->memfd_on_local) ?
               PA_MEM_TYPE_SHARED_POSIX : PA_MEM_TYPE_SHARED_MEMFD);

    if (!(c->mempool = pa_mempool_new(type, c->conf->shm_size, true))) {

        if (!c->conf->disable_shm) {
            pa_log_warn("Failed to allocate shared memory pool. Falling back to a normal private one.");
            c->mempool = pa_mempool_new(PA_MEM_TYPE_PRIVATE, c->conf->shm_size, true);
        }

        if (!c->mempool) {
            context_free(c);
            return NULL;
        }
    }

    return c;
}
Ejemplo n.º 9
0
pa_core* pa_core_new(pa_mainloop_api *m, bool shared, size_t shm_size) {
    pa_core* c;
    pa_mempool *pool;
    int j;

    pa_assert(m);

    if (shared) {
        if (!(pool = pa_mempool_new(shared, shm_size))) {
            pa_log_warn("Failed to allocate shared memory pool. Falling back to a normal memory pool.");
            shared = false;
        }
    }

    if (!shared) {
        if (!(pool = pa_mempool_new(shared, shm_size))) {
            pa_log("pa_mempool_new() failed.");
            return NULL;
        }
    }

    c = pa_msgobject_new(pa_core);
    c->parent.parent.free = core_free;
    c->parent.process_msg = core_process_msg;

    c->state = PA_CORE_STARTUP;
    c->mainloop = m;

    c->clients = pa_idxset_new(NULL, NULL);
    c->cards = pa_idxset_new(NULL, NULL);
    c->sinks = pa_idxset_new(NULL, NULL);
    c->sources = pa_idxset_new(NULL, NULL);
    c->sink_inputs = pa_idxset_new(NULL, NULL);
    c->source_outputs = pa_idxset_new(NULL, NULL);
    c->modules = pa_idxset_new(NULL, NULL);
    c->scache = pa_idxset_new(NULL, NULL);

    c->namereg = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
    c->shared = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);

    c->default_source = NULL;
    c->default_sink = NULL;

    c->default_sample_spec.format = PA_SAMPLE_S16NE;
    c->default_sample_spec.rate = 44100;
    c->default_sample_spec.channels = 2;
    pa_channel_map_init_extend(&c->default_channel_map, c->default_sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
    c->default_n_fragments = 4;
    c->default_fragment_size_msec = 25;

    c->deferred_volume_safety_margin_usec = 8000;
    c->deferred_volume_extra_delay_usec = 0;

    c->module_defer_unload_event = NULL;
    c->modules_pending_unload = pa_hashmap_new(NULL, NULL);

    c->subscription_defer_event = NULL;
    PA_LLIST_HEAD_INIT(pa_subscription, c->subscriptions);
    PA_LLIST_HEAD_INIT(pa_subscription_event, c->subscription_event_queue);
    c->subscription_event_last = NULL;

    c->mempool = pool;
    pa_silence_cache_init(&c->silence_cache);

    if (shared && !(c->rw_mempool = pa_mempool_new(shared, shm_size)))
        pa_log_warn("Failed to allocate shared writable memory pool.");
    if (c->rw_mempool)
        pa_mempool_set_is_remote_writable(c->rw_mempool, true);

    c->exit_event = NULL;
    c->scache_auto_unload_event = NULL;

    c->exit_idle_time = -1;
    c->scache_idle_time = 20;

    c->flat_volumes = true;
    c->disallow_module_loading = false;
    c->disallow_exit = false;
    c->running_as_daemon = false;
    c->realtime_scheduling = false;
    c->realtime_priority = 5;
    c->disable_remixing = false;
    c->disable_lfe_remixing = false;
    c->lfe_crossover_freq = 120;
    c->deferred_volume = true;
    c->resample_method = PA_RESAMPLER_SPEEX_FLOAT_BASE + 1;

    for (j = 0; j < PA_CORE_HOOK_MAX; j++)
        pa_hook_init(&c->hooks[j], c);

    for (j = 0; j < PA_ACCESS_HOOK_MAX; j++)
        pa_hook_init(&c->access[j], c);

    pa_random(&c->cookie, sizeof(c->cookie));

#ifdef SIGPIPE
    pa_check_signal_is_blocked(SIGPIPE);
#endif

    pa_core_check_idle(c);

    c->state = PA_CORE_RUNNING;

    return c;
}