C++ (Cpp) pa_tagstruct_put_channel_map Beispiele

Beispiel #1

Datei: scache.c Projekt: felfert/pulseaudio

int pa_stream_connect_upload(pa_stream *s, size_t length) {
    pa_tagstruct *t;
    uint32_t tag;
    const char *name;

    pa_assert(s);
    pa_assert(PA_REFCNT_VALUE(s) >= 1);

    PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
    PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE);
    PA_CHECK_VALIDITY(s->context, length > 0, PA_ERR_INVALID);
    PA_CHECK_VALIDITY(s->context, length == (size_t) (uint32_t) length, PA_ERR_INVALID);
    PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);

    if (!(name = pa_proplist_gets(s->proplist, PA_PROP_EVENT_ID)))
        name = pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME);

    PA_CHECK_VALIDITY(s->context, name && *name && pa_utf8_valid(name), PA_ERR_INVALID);

    pa_stream_ref(s);

    s->direction = PA_STREAM_UPLOAD;
    s->flags = 0;

    t = pa_tagstruct_command(s->context, PA_COMMAND_CREATE_UPLOAD_STREAM, &tag);

    pa_tagstruct_puts(t, name);
    pa_tagstruct_put_sample_spec(t, &s->sample_spec);
    pa_tagstruct_put_channel_map(t, &s->channel_map);
    pa_tagstruct_putu32(t, (uint32_t) length);

    if (s->context->version >= 13)
        pa_tagstruct_put_proplist(t, s->proplist);

    pa_pstream_send_tagstruct(s->context->pstream, t);
    pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL);

    pa_stream_set_state(s, PA_STREAM_CREATING);

    pa_stream_unref(s);
    return 0;
}

Beispiel #2

Datei: ext-stream-restore.c Projekt: KimT/pulseaudio_kt

pa_operation *pa_ext_stream_restore_write(
        pa_context *c,
        pa_update_mode_t mode,
        const pa_ext_stream_restore_info data[],
        unsigned n,
        int apply_immediately,
        pa_context_success_cb_t cb,
        void *userdata) {

    uint32_t tag;
    pa_operation *o = NULL;
    pa_tagstruct *t = NULL;

    pa_assert(c);
    pa_assert(PA_REFCNT_VALUE(c) >= 1);
    pa_assert(mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE || mode == PA_UPDATE_SET);
    pa_assert(data);

    PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
    PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
    PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);

    o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);

    t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag);
    pa_tagstruct_putu32(t, PA_INVALID_INDEX);
    pa_tagstruct_puts(t, "module-stream-restore");
    pa_tagstruct_putu32(t, SUBCOMMAND_WRITE);

    pa_tagstruct_putu32(t, mode);
    pa_tagstruct_put_boolean(t, apply_immediately);

    for (; n > 0; n--, data++) {
        if (!data->name || !*data->name)
            goto fail;

        pa_tagstruct_puts(t, data->name);

        if (data->volume.channels > 0 &&
            !pa_cvolume_compatible_with_channel_map(&data->volume, &data->channel_map))
            goto fail;

        pa_tagstruct_put_channel_map(t, &data->channel_map);
        pa_tagstruct_put_cvolume(t, &data->volume);
        pa_tagstruct_puts(t, data->device);
        pa_tagstruct_put_boolean(t, data->mute);
    }

    pa_pstream_send_tagstruct(c->pstream, t);
    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);

    return o;

fail:
    pa_operation_cancel(o);
    pa_operation_unref(o);

    pa_tagstruct_free(t);

    pa_context_set_error(c, PA_ERR_INVALID);
    return NULL;
}