C++ (Cpp) pa_memblockq_set_prebuf示例

示例#1

文件： module-loopback.c 项目： ford-prefect/pulseaudio

/* Called from output thread context */
static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) {
    struct userdata *u;

    pa_sink_input_assert_ref(i);
    pa_sink_input_assert_io_context(i);
    pa_assert_se(u = i->userdata);

    pa_memblockq_set_prebuf(u->memblockq, nbytes*2);
    pa_log_info("Max request changed");
}

示例#2

文件： module-loopback.c 项目： freedesktop-unofficial-mirror/pulseaudio__pulseaudio.git.backup

/* Called from output thread context */
static void sink_input_update_max_request_cb(pa_sink_input *i, size_t nbytes) {
    struct userdata *u;

    pa_sink_input_assert_ref(i);
    pa_sink_input_assert_io_context(i);
    pa_assert_se(u = i->userdata);

    pa_memblockq_set_prebuf(u->memblockq, nbytes*2);
    pa_log_info("Max request changed");
    pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(u->sink_input), SINK_INPUT_MESSAGE_MAX_REQUEST_CHANGED, NULL, 0, NULL, NULL);
}

示例#3

文件： module-loopback.c 项目： ford-prefect/pulseaudio

/* Called from output thread context */
static void sink_input_attach_cb(pa_sink_input *i) {
    struct userdata *u;

    pa_sink_input_assert_ref(i);
    pa_sink_input_assert_io_context(i);
    pa_assert_se(u = i->userdata);

    u->rtpoll_item_read = pa_rtpoll_item_new_asyncmsgq_read(
            i->sink->thread_info.rtpoll,
            PA_RTPOLL_LATE,
            u->asyncmsgq);

    pa_memblockq_set_prebuf(u->memblockq, pa_sink_input_get_max_request(i)*2);
    pa_memblockq_set_maxrewind(u->memblockq, pa_sink_input_get_max_rewind(i));
}

示例#4

文件： play-memblockq.c 项目： OS2World/MM-SOUND-PM123

void pa_memblockq_sink_input_set_queue(pa_sink_input *i, pa_memblockq *q) {
    memblockq_stream *u;

    pa_sink_input_assert_ref(i);
    u = MEMBLOCKQ_STREAM(i->userdata);
    memblockq_stream_assert_ref(u);

    if (u->memblockq)
        pa_memblockq_free(u->memblockq);

    if ((u->memblockq = q)) {
        pa_memblockq_set_prebuf(q, 0);
        pa_memblockq_set_silence(q, NULL);
        pa_memblockq_willneed(q);
    }
}

示例#5

文件： memblockq.c 项目： a-darwish/pulseaudio

pa_memblockq* pa_memblockq_new(
        const char *name,
        int64_t idx,
        size_t maxlength,
        size_t tlength,
        const pa_sample_spec *sample_spec,
        size_t prebuf,
        size_t minreq,
        size_t maxrewind,
        pa_memchunk *silence) {

    pa_memblockq* bq;

    pa_assert(sample_spec);
    pa_assert(name);

    bq = pa_xnew0(pa_memblockq, 1);
    bq->name = pa_xstrdup(name);

    bq->sample_spec = *sample_spec;
    bq->base = pa_frame_size(sample_spec);
    bq->read_index = bq->write_index = idx;

    pa_log_debug("memblockq requested: maxlength=%lu, tlength=%lu, base=%lu, prebuf=%lu, minreq=%lu maxrewind=%lu",
                 (unsigned long) maxlength, (unsigned long) tlength, (unsigned long) bq->base, (unsigned long) prebuf, (unsigned long) minreq, (unsigned long) maxrewind);

    bq->in_prebuf = true;

    pa_memblockq_set_maxlength(bq, maxlength);
    pa_memblockq_set_tlength(bq, tlength);
    pa_memblockq_set_minreq(bq, minreq);
    pa_memblockq_set_prebuf(bq, prebuf);
    pa_memblockq_set_maxrewind(bq, maxrewind);

    pa_log_debug("memblockq sanitized: maxlength=%lu, tlength=%lu, base=%lu, prebuf=%lu, minreq=%lu maxrewind=%lu",
                 (unsigned long) bq->maxlength, (unsigned long) bq->tlength, (unsigned long) bq->base, (unsigned long) bq->prebuf, (unsigned long) bq->minreq, (unsigned long) bq->maxrewind);

    if (silence) {
        bq->silence = *silence;
        pa_memblock_ref(bq->silence.memblock);
    }

    bq->mcalign = pa_mcalign_new(bq->base);

    return bq;
}