void MediaPlayerPrivate::updateStates()
{
// There is no (known) way to get such level of information about
// the state of GStreamer, therefore, when in PAUSED state,
// we are sure we can display the first frame and go to play
MediaPlayer::NetworkState oldNetworkState = m_networkState;
MediaPlayer::ReadyState oldReadyState = m_readyState;
GstState state;
GstState pending;
if (!m_playBin)
return;
GstStateChangeReturn ret = gst_element_get_state (m_playBin,
&state, &pending, 250 * GST_NSECOND);
switch(ret) {
case GST_STATE_CHANGE_SUCCESS:
LOG_VERBOSE(Media, "State: %s, pending: %s",
gst_element_state_get_name(state),
gst_element_state_get_name(pending));
if (state == GST_STATE_READY) {
m_readyState = MediaPlayer::HaveEnoughData;
} else if (state == GST_STATE_PAUSED) {
m_readyState = MediaPlayer::HaveEnoughData;
}
m_networkState = MediaPlayer::Loaded;
g_object_get(m_playBin, "source", &m_source, NULL);
if (!m_source)
LOG_VERBOSE(Media, "m_source is NULL");
break;
case GST_STATE_CHANGE_ASYNC:
LOG_VERBOSE(Media, "Async: State: %s, pending: %s",
gst_element_state_get_name(state),
gst_element_state_get_name(pending));
// Change in progress
return;
break;
case GST_STATE_CHANGE_NO_PREROLL:
LOG_VERBOSE(Media, "No preroll: State: %s, pending: %s",
gst_element_state_get_name(state),
gst_element_state_get_name(pending));
if (state == GST_STATE_READY) {
m_readyState = MediaPlayer::HaveFutureData;
} else if (state == GST_STATE_PAUSED) {
m_readyState = MediaPlayer::HaveCurrentData;
}
m_networkState = MediaPlayer::Loading;
break;
default:
LOG_VERBOSE(Media, "Else : %d", ret);
break;
}
if (seeking())
m_readyState = MediaPlayer::HaveNothing;
if (m_networkState != oldNetworkState) {
LOG_VERBOSE(Media, "Network State Changed from %u to %u",
oldNetworkState, m_networkState);
m_player->networkStateChanged();
}
if (m_readyState != oldReadyState) {
LOG_VERBOSE(Media, "Ready State Changed from %u to %u",
oldReadyState, m_readyState);
m_player->readyStateChanged();
}
}
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;
}
}
void MediaPlayerPrivateAVFoundation::updateStates()
{
if (m_ignoreLoadStateChanges)
return;
MediaPlayer::NetworkState oldNetworkState = m_networkState;
MediaPlayer::ReadyState oldReadyState = m_readyState;
LOG(Media, "MediaPlayerPrivateAVFoundation::updateStates(%p) - entering with networkState = %i, readyState = %i",
this, static_cast<int>(m_networkState), static_cast<int>(m_readyState));
if (m_loadingMetadata)
m_networkState = MediaPlayer::Loading;
else {
// -loadValuesAsynchronouslyForKeys:completionHandler: has invoked its handler; test status of keys and determine state.
AssetStatus assetStatus = this->assetStatus();
ItemStatus itemStatus = playerItemStatus();
m_assetIsPlayable = (assetStatus == MediaPlayerAVAssetStatusPlayable);
if (m_readyState < MediaPlayer::HaveMetadata && assetStatus > MediaPlayerAVAssetStatusLoading) {
if (m_assetIsPlayable) {
if (assetStatus >= MediaPlayerAVAssetStatusLoaded)
m_readyState = MediaPlayer::HaveMetadata;
if (itemStatus <= MediaPlayerAVPlayerItemStatusUnknown) {
if (assetStatus == MediaPlayerAVAssetStatusFailed || m_preload > MediaPlayer::MetaData || isLiveStream()) {
// The asset is playable but doesn't support inspection prior to playback (eg. streaming files),
// or we are supposed to prepare for playback immediately, so create the player item now.
m_networkState = MediaPlayer::Loading;
prepareToPlay();
} else
m_networkState = MediaPlayer::Idle;
}
} else {
// FIX ME: fetch the error associated with the @"playable" key to distinguish between format
// and network errors.
m_networkState = MediaPlayer::FormatError;
}
}
if (assetStatus >= MediaPlayerAVAssetStatusLoaded && itemStatus > MediaPlayerAVPlayerItemStatusUnknown) {
if (seeking())
m_readyState = m_readyState >= MediaPlayer::HaveMetadata ? MediaPlayer::HaveMetadata : MediaPlayer::HaveNothing;
else {
switch (itemStatus) {
case MediaPlayerAVPlayerItemStatusDoesNotExist:
case MediaPlayerAVPlayerItemStatusUnknown:
case MediaPlayerAVPlayerItemStatusFailed:
break;
case MediaPlayerAVPlayerItemStatusPlaybackLikelyToKeepUp:
m_readyState = MediaPlayer::HaveEnoughData;
break;
case MediaPlayerAVPlayerItemStatusPlaybackBufferFull:
case MediaPlayerAVPlayerItemStatusReadyToPlay:
// If the readyState is already HaveEnoughData, don't go lower because of this state change.
if (m_readyState == MediaPlayer::HaveEnoughData)
break;
case MediaPlayerAVPlayerItemStatusPlaybackBufferEmpty:
if (maxTimeLoaded() > currentTime())
m_readyState = MediaPlayer::HaveFutureData;
else
m_readyState = MediaPlayer::HaveCurrentData;
break;
}
if (itemStatus == MediaPlayerAVPlayerItemStatusPlaybackBufferFull)
m_networkState = MediaPlayer::Idle;
else if (itemStatus == MediaPlayerAVPlayerItemStatusFailed)
m_networkState = MediaPlayer::DecodeError;
else if (itemStatus != MediaPlayerAVPlayerItemStatusPlaybackBufferFull && itemStatus >= MediaPlayerAVPlayerItemStatusReadyToPlay)
m_networkState = (maxTimeLoaded() == duration()) ? MediaPlayer::Loaded : MediaPlayer::Loading;
}
}
}
if (isReadyForVideoSetup() && currentRenderingMode() != preferredRenderingMode())
setUpVideoRendering();
if (!m_haveReportedFirstVideoFrame && m_cachedHasVideo && hasAvailableVideoFrame()) {
if (m_readyState < MediaPlayer::HaveCurrentData)
m_readyState = MediaPlayer::HaveCurrentData;
m_haveReportedFirstVideoFrame = true;
m_player->firstVideoFrameAvailable();
}
if (m_networkState != oldNetworkState)
m_player->networkStateChanged();
if (m_readyState != oldReadyState)
m_player->readyStateChanged();
if (m_playWhenFramesAvailable && hasAvailableVideoFrame()) {
m_playWhenFramesAvailable = false;
platformPlay();
}
LOG(Media, "MediaPlayerPrivateAVFoundation::updateStates(%p) - exiting with networkState = %i, readyState = %i",
this, static_cast<int>(m_networkState), static_cast<int>(m_readyState));
}
void MediaPlayerPrivateAVFoundation::updateStates()
{
MediaPlayer::NetworkState oldNetworkState = m_networkState;
MediaPlayer::ReadyState oldReadyState = m_readyState;
LOG(Media, "MediaPlayerPrivateAVFoundation::updateStates(%p) - entering with networkState = %i, readyState = %i",
this, static_cast<int>(m_networkState), static_cast<int>(m_readyState));
if (m_loadingMetadata)
m_networkState = MediaPlayer::Loading;
else {
// -loadValuesAsynchronouslyForKeys:completionHandler: has invoked its handler; test status of keys and determine state.
AVAssetStatus avAssetStatus = assetStatus();
ItemStatus itemStatus = playerItemStatus();
m_assetIsPlayable = (avAssetStatus == MediaPlayerAVAssetStatusPlayable);
if (m_readyState < MediaPlayer::HaveMetadata && avAssetStatus > MediaPlayerAVAssetStatusLoading) {
if (m_assetIsPlayable) {
if (itemStatus == MediaPlayerAVPlayerItemStatusUnknown) {
if (avAssetStatus == MediaPlayerAVAssetStatusFailed || m_preload > MediaPlayer::MetaData) {
// We may have a playable asset that doesn't support inspection prior to playback; go ahead
// and create the AVPlayerItem now. When the AVPlayerItem becomes ready to play, we will
// have access to its metadata. Or we may have been asked to become ready to play immediately.
m_networkState = MediaPlayer::Loading;
prepareToPlay();
} else
m_networkState = MediaPlayer::Idle;
}
if (avAssetStatus == MediaPlayerAVAssetStatusLoaded)
m_readyState = MediaPlayer::HaveMetadata;
} else {
// FIX ME: fetch the error associated with the @"playable" key to distinguish between format
// and network errors.
m_networkState = MediaPlayer::FormatError;
}
}
if (avAssetStatus >= MediaPlayerAVAssetStatusLoaded && itemStatus > MediaPlayerAVPlayerItemStatusUnknown) {
if (seeking())
m_readyState = m_readyState >= MediaPlayer::HaveMetadata ? MediaPlayer::HaveMetadata : MediaPlayer::HaveNothing;
else {
float maxLoaded = maxTimeLoaded();
switch (itemStatus) {
case MediaPlayerAVPlayerItemStatusUnknown:
break;
case MediaPlayerAVPlayerItemStatusFailed:
m_networkState = MediaPlayer::DecodeError;
break;
case MediaPlayerAVPlayerItemStatusPlaybackLikelyToKeepUp:
m_readyState = MediaPlayer::HaveEnoughData;
break;
case MediaPlayerAVPlayerItemStatusReadyToPlay:
case MediaPlayerAVPlayerItemStatusPlaybackBufferEmpty:
case MediaPlayerAVPlayerItemStatusPlaybackBufferFull:
if (maxLoaded > currentTime())
m_readyState = MediaPlayer::HaveFutureData;
else
m_readyState = MediaPlayer::HaveCurrentData;
break;
}
if (itemStatus >= MediaPlayerAVPlayerItemStatusReadyToPlay)
m_networkState = (maxLoaded == duration()) ? MediaPlayer::Loaded : MediaPlayer::Loading;
}
}
}
if (isReadyForVideoSetup() && currentRenderingMode() != preferredRenderingMode())
setUpVideoRendering();
if (m_networkState != oldNetworkState)
m_player->networkStateChanged();
if (m_readyState != oldReadyState)
m_player->readyStateChanged();
LOG(Media, "MediaPlayerPrivateAVFoundation::updateStates(%p) - exiting with networkState = %i, readyState = %i",
this, static_cast<int>(m_networkState), static_cast<int>(m_readyState));
}
