示例#1
0
void InbandTextTrackPrivateAVF::processCue(CFArrayRef attributedStrings, double time)
{
    if (!m_player)
        return;
    
    if (m_havePartialCue) {
        // Cues do not have an explicit duration, they are displayed until the next "cue" (which might be empty) is emitted.
        m_currentCueEndTime = time;
        LOG(Media, "InbandTextTrackPrivateAVF::processCue flushing cue: start=%.2f, end=%.2f, settings=\"%s\", content=\"%s\" \n",
            m_currentCueStartTime, m_currentCueEndTime,
            m_currentCueSettings.toString().utf8().data(), m_currentCueContent.toString().utf8().data());
        m_player->flushCurrentCue(this);
        resetCueValues();
    }

    CFIndex count = CFArrayGetCount(attributedStrings);
    for (CFIndex i = 0; i < count; i++) {
        CFAttributedStringRef attributedString = static_cast<CFAttributedStringRef>(CFArrayGetValueAtIndex(attributedStrings, i));

        if (!attributedString || !CFAttributedStringGetLength(attributedString))
            continue;

        processCueAttributes(attributedString, m_currentCueContent, m_currentCueSettings);
        m_currentCueStartTime = time;
        m_havePartialCue = true;
    }
}
示例#2
0
void InbandTextTrackPrivateAVF::processCue(CFArrayRef attributedStrings, double time)
{
    if (!client())
        return;
    
    if (m_havePartialCue) {
        // Cues do not have an explicit duration, they are displayed until the next "cue" (which might be empty) is emitted.
        m_currentCueEndTime = time;

        if (m_currentCueEndTime >= m_currentCueStartTime) {
            for (size_t i = 0; i < m_cues.size(); i++) {

                GenericCueData* cueData = m_cues[i].get();

                LOG(Media, "InbandTextTrackPrivateAVF::processCue flushing cue: start=%.2f, end=%.2f, content=\"%s\" \n",
                    m_currentCueStartTime, m_currentCueEndTime, cueData->content().utf8().data());
                
                if (!cueData->content().length())
                    continue;
                
                cueData->setStartTime(m_currentCueStartTime);
                cueData->setEndTime(m_currentCueEndTime);
                
                // AVFoundation cue "position" is to the center of the text so adjust relative to the edge because we will use it to
                // set CSS "left".
                if (cueData->position() >= 0 && cueData->size() > 0)
                    cueData->setPosition(cueData->position() - cueData->size() / 2);
                
                LOG(Media, "InbandTextTrackPrivateAVF::processCue(%p) - adding cue for time = %.2f, position =  %.2f, line =  %.2f", this, cueData->startTime(), cueData->position(), cueData->line());
                client()->addGenericCue(this, cueData);
            }
        } else
            LOG(Media, "InbandTextTrackPrivateAVF::processCue negative length cue(s) ignored: start=%.2f, end=%.2f\n", m_currentCueStartTime, m_currentCueEndTime);

        resetCueValues();
    }

    if (!attributedStrings)
        return;

    CFIndex count = CFArrayGetCount(attributedStrings);
    if (!count)
        return;

    for (CFIndex i = 0; i < count; i++) {
        CFAttributedStringRef attributedString = static_cast<CFAttributedStringRef>(CFArrayGetValueAtIndex(attributedStrings, i));

        if (!attributedString || !CFAttributedStringGetLength(attributedString))
            continue;

        m_cues.append(adoptPtr(new GenericCueData));
        processCueAttributes(attributedString, m_cues[i].get());
        m_currentCueStartTime = time;
        m_havePartialCue = true;
    }
}
void InbandTextTrackPrivateAVF::processCue(CFArrayRef attributedStrings, double time)
{
    if (!client())
        return;

    LOG(Media, "InbandTextTrackPrivateAVF::processCue - %li cues at time %.2f\n", attributedStrings ? CFArrayGetCount(attributedStrings) : 0, time);

    if (m_pendingCueStatus != None) {
        // Cues do not have an explicit duration, they are displayed until the next "cue" (which might be empty) is emitted.
        m_currentCueEndTime = time;

        if (m_currentCueEndTime >= m_currentCueStartTime) {
            for (size_t i = 0; i < m_cues.size(); i++) {
                GenericCueData* cueData = m_cues[i].get();

                if (m_pendingCueStatus == Valid) {
                    cueData->setEndTime(m_currentCueEndTime);
                    cueData->setStatus(GenericCueData::Complete);

                    LOG(Media, "InbandTextTrackPrivateAVF::processCue(%p) - updating cue: start=%.2f, end=%.2f, content=\"%s\"", this, cueData->startTime(), m_currentCueEndTime, cueData->content().utf8().data());
                    client()->updateGenericCue(this, cueData);
                } else {
                    // We have to assume that the implicit duration is invalid for cues delivered during a seek because the AVF decode pipeline may not
                    // see every cue, so DO NOT update cue duration while seeking.
                    LOG(Media, "InbandTextTrackPrivateAVF::processCue(%p) - ignoring cue delivered during seek: start=%.2f, end=%.2f, content=\"%s\"", this, cueData->startTime(), m_currentCueEndTime, cueData->content().utf8().data());
                }
            }
        } else
            LOG(Media, "InbandTextTrackPrivateAVF::processCue negative length cue(s) ignored: start=%.2f, end=%.2f\n", m_currentCueStartTime, m_currentCueEndTime);

        resetCueValues();
    }

    if (!attributedStrings)
        return;

    CFIndex count = CFArrayGetCount(attributedStrings);
    if (!count)
        return;

    for (CFIndex i = 0; i < count; i++) {
        CFAttributedStringRef attributedString = static_cast<CFAttributedStringRef>(CFArrayGetValueAtIndex(attributedStrings, i));

        if (!attributedString || !CFAttributedStringGetLength(attributedString))
            continue;

        RefPtr<GenericCueData> cueData = GenericCueData::create();
        processCueAttributes(attributedString, cueData.get());
        if (!cueData->content().length())
            continue;

        m_cues.append(cueData);

        m_currentCueStartTime = time;
        cueData->setStartTime(m_currentCueStartTime);
        cueData->setEndTime(numeric_limits<double>::infinity());
        
        // AVFoundation cue "position" is to the center of the text so adjust relative to the edge because we will use it to
        // set CSS "left".
        if (cueData->position() >= 0 && cueData->size() > 0)
            cueData->setPosition(cueData->position() - cueData->size() / 2);
        
        LOG(Media, "InbandTextTrackPrivateAVF::processCue(%p) - adding cue for time = %.2f, position =  %.2f, line =  %.2f", this, cueData->startTime(), cueData->position(), cueData->line());

        cueData->setStatus(GenericCueData::Partial);
        client()->addGenericCue(this, cueData.release());

        m_pendingCueStatus = seeking() ? DeliveredDuringSeek : Valid;
    }
}