Exemple #1
0
int BDRingBuffer::safe_read(void *data, uint sz)
{
    int result = 0;
    if (m_isHDMVNavigation)
    {
        HandleBDEvents();
        while (result == 0)
        {
            BD_EVENT event;
            result = bd_read_ext(bdnav,
                                 (unsigned char *)data,
                                  sz, &event);
            HandleBDEvent(event);
            if (result == 0)
                HandleBDEvents();
        }
    }
    else
    {
        result = bd_read(bdnav, (unsigned char *)data, sz);
    }

    m_currentTime = bd_tell_time(bdnav);
    return result;
}
Exemple #2
0
static int bluray_stream_control(stream_t *s, int cmd, void *arg)
{
    struct bluray_priv_s *b = s->priv;

    switch (cmd) {

    case STREAM_CTRL_GET_NUM_CHAPTERS: {
        BLURAY_TITLE_INFO *ti;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        *((unsigned int *) arg) = ti->chapter_count;
        bd_free_title_info(ti);

        return 1;
    }

    case STREAM_CTRL_GET_CURRENT_TITLE: {
        *((unsigned int *) arg) = b->current_title;
        return 1;
    }

    case STREAM_CTRL_GET_CURRENT_CHAPTER: {
        *((unsigned int *) arg) = bd_get_current_chapter(b->bd);
        return 1;
    }

    case STREAM_CTRL_SEEK_TO_CHAPTER: {
        BLURAY_TITLE_INFO *ti;
        int chapter = *((unsigned int *) arg);
        int64_t pos;
        int r;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        if (chapter < 0 || chapter > ti->chapter_count) {
            bd_free_title_info(ti);
            return STREAM_UNSUPPORTED;
        }

        pos = bd_chapter_pos(b->bd, chapter);
        r = bluray_stream_seek(s, pos);
        bd_free_title_info(ti);

        return r ? 1 : STREAM_UNSUPPORTED;
    }

    case STREAM_CTRL_GET_TIME_LENGTH: {
        BLURAY_TITLE_INFO *ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;
        *(double *)arg = ti->duration / 90000.0;
        return STREAM_OK;
    }
    case STREAM_CTRL_GET_SIZE:
        *(uint64_t*)arg = bd_get_title_size(b->bd);
        return STREAM_OK;

    case STREAM_CTRL_GET_CURRENT_TIME:
        *(double *)arg = bd_tell_time(b->bd) / 90000.0;
        return STREAM_OK;
    case STREAM_CTRL_SEEK_TO_TIME: {
        int64_t res;
        double target = *(double*)arg * 90000.0;
        BLURAY_TITLE_INFO *ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        // clamp to ensure that out-of-bounds seeks do not simply do nothing.
        target = FFMAX(target, 0);
        if (ti && ti->duration > 1)
            target = FFMIN(target, ti->duration - 1);
        res = bd_seek_time(b->bd, target);
        if (res < 0)
            return STREAM_ERROR;
        s->pos = res;
        return 1;
    }

    case STREAM_CTRL_GET_NUM_ANGLES: {
        BLURAY_TITLE_INFO *ti;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        *((int *) arg) = ti->angle_count;
        bd_free_title_info(ti);

        return 1;
    }

    case STREAM_CTRL_GET_ANGLE: {
        *((int *) arg) = b->current_angle;
        return 1;
    }

    case STREAM_CTRL_SET_ANGLE: {
        BLURAY_TITLE_INFO *ti;
        int angle = *((int *) arg);

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        if (angle < 0 || angle > ti->angle_count) {
            bd_free_title_info(ti);
            return STREAM_UNSUPPORTED;
        }

        b->current_angle = angle;
        bd_seamless_angle_change(b->bd, angle);
        bd_free_title_info(ti);

        return 1;
    }

    case STREAM_CTRL_GET_LANG: {
        struct stream_lang_req *req = arg;
        const BLURAY_STREAM_INFO *si;
        int count;
        BLURAY_TITLE_INFO *ti = get_langs(b, req->type, &si, &count);
        while (count-- > 0) {
            if (si->pid == req->id) {
                memcpy(req->buf, si->lang, 4);
                req->buf[4] = 0;
                bd_free_title_info(ti);
                return STREAM_OK;
            }
            si++;
        }
        if (ti)
            bd_free_title_info(ti);
        return STREAM_ERROR;
    }

    default:
        break;
    }

    return STREAM_UNSUPPORTED;
}
JNIEXPORT jlong JNICALL Java_org_videolan_Libbluray_tellTimeN(JNIEnv * env,
        jclass cls, jlong np) {
    BLURAY* bd = (BLURAY*)(intptr_t)np;
    return bd_tell_time(bd);
}
Exemple #4
0
long long BDRingBuffer::SeekInternal(long long pos, int whence)
{
    long long ret = -1;

    poslock.lockForWrite();

    // Optimize no-op seeks
    if (readaheadrunning &&
        ((whence == SEEK_SET && pos == readpos) ||
         (whence == SEEK_CUR && pos == 0)))
    {
        ret = readpos;

        poslock.unlock();

        return ret;
    }

    // only valid for SEEK_SET & SEEK_CUR
    long long new_pos = (SEEK_SET==whence) ? pos : readpos + pos;

    // Here we perform a normal seek. When successful we
    // need to call ResetReadAhead(). A reset means we will
    // need to refill the buffer, which takes some time.
    if ((SEEK_END == whence) ||
        ((SEEK_CUR == whence) && new_pos != 0))
    {
        errno = EINVAL;
        ret = -1;
    }
    else
    {
        SeekInternal(new_pos);
        m_currentTime = bd_tell_time(bdnav);
        ret = new_pos;
    }

    if (ret >= 0)
    {
        readpos = ret;

        ignorereadpos = -1;

        if (readaheadrunning)
            ResetReadAhead(readpos);

        readAdjust = 0;
    }
    else
    {
        QString cmd = QString("Seek(%1, %2)").arg(pos)
            .arg((whence == SEEK_SET) ? "SEEK_SET" :
                 ((whence == SEEK_CUR) ?"SEEK_CUR" : "SEEK_END"));
        LOG(VB_GENERAL, LOG_ERR, LOC + cmd + " Failed" + ENO);
    }

    poslock.unlock();

    generalWait.wakeAll();

    return ret;
}