bool MediaPlayerPrivateAVFoundation::hasAvailableVideoFrame() const
{
if (currentRenderingMode() == MediaRenderingToLayer)
return videoLayerIsReadyToDisplay();
// When using the software renderer we hope someone will signal that a frame is available so we might as well
// wait until we know that a frame has been drawn.
return m_videoFrameHasDrawn;
}
void MediaPlayerPrivateAVFoundation::prepareForRendering()
{
if (m_isAllowedToRender)
return;
m_isAllowedToRender = true;
setUpVideoRendering();
if (currentRenderingMode() == MediaRenderingToLayer || preferredRenderingMode() == MediaRenderingToLayer)
m_player->client().mediaPlayerRenderingModeChanged(m_player);
}
void MediaPlayerPrivateAVFoundation::setUpVideoRendering()
{
if (!isReadyForVideoSetup())
return;
MediaRenderingMode currentMode = currentRenderingMode();
MediaRenderingMode preferredMode = preferredRenderingMode();
if (preferredMode == MediaRenderingNone)
preferredMode = MediaRenderingToContext;
if (currentMode == preferredMode && currentMode != MediaRenderingNone)
return;
LOG(Media, "MediaPlayerPrivateAVFoundation::setUpVideoRendering(%p) - current mode = %d, preferred mode = %d",
this, static_cast<int>(currentMode), static_cast<int>(preferredMode));
if (currentMode != MediaRenderingNone)
tearDownVideoRendering();
switch (preferredMode) {
case MediaRenderingNone:
case MediaRenderingToContext:
createContextVideoRenderer();
break;
#if USE(ACCELERATED_COMPOSITING)
case MediaRenderingToLayer:
createVideoLayer();
break;
#endif
}
#if USE(ACCELERATED_COMPOSITING)
// If using a movie layer, inform the client so the compositing tree is updated.
if (currentMode == MediaRenderingToLayer || preferredMode == MediaRenderingToLayer) {
LOG(Media, "MediaPlayerPrivateAVFoundation::setUpVideoRendering(%p) - calling mediaPlayerRenderingModeChanged()", this);
m_player->mediaPlayerClient()->mediaPlayerRenderingModeChanged(m_player);
}
#endif
}
void MediaPlayerPrivateAVFoundation::updateStates()
{
if (m_ignoreLoadStateChanges)
return;
MediaPlayer::NetworkState newNetworkState = m_networkState;
MediaPlayer::ReadyState newReadyState = m_readyState;
if (m_loadingMetadata)
newNetworkState = 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)
newReadyState = 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.
newNetworkState = MediaPlayer::Loading;
prepareToPlay();
} else
newNetworkState = MediaPlayer::Idle;
}
} else {
// FIX ME: fetch the error associated with the @"playable" key to distinguish between format
// and network errors.
newNetworkState = MediaPlayer::FormatError;
}
}
if (assetStatus >= MediaPlayerAVAssetStatusLoaded && itemStatus > MediaPlayerAVPlayerItemStatusUnknown) {
switch (itemStatus) {
case MediaPlayerAVPlayerItemStatusDoesNotExist:
case MediaPlayerAVPlayerItemStatusUnknown:
case MediaPlayerAVPlayerItemStatusFailed:
break;
case MediaPlayerAVPlayerItemStatusPlaybackLikelyToKeepUp:
case MediaPlayerAVPlayerItemStatusPlaybackBufferFull:
// If the status becomes PlaybackBufferFull, loading stops and the status will not
// progress to LikelyToKeepUp. Set the readyState to HAVE_ENOUGH_DATA, on the
// presumption that if the playback buffer is full, playback will probably not stall.
newReadyState = MediaPlayer::HaveEnoughData;
break;
case MediaPlayerAVPlayerItemStatusReadyToPlay:
if (m_readyState != MediaPlayer::HaveEnoughData && maxTimeLoaded() > currentMediaTime())
newReadyState = MediaPlayer::HaveFutureData;
break;
case MediaPlayerAVPlayerItemStatusPlaybackBufferEmpty:
newReadyState = MediaPlayer::HaveCurrentData;
break;
}
if (itemStatus == MediaPlayerAVPlayerItemStatusPlaybackBufferFull)
newNetworkState = MediaPlayer::Idle;
else if (itemStatus == MediaPlayerAVPlayerItemStatusFailed)
newNetworkState = MediaPlayer::DecodeError;
else if (itemStatus != MediaPlayerAVPlayerItemStatusPlaybackBufferFull && itemStatus >= MediaPlayerAVPlayerItemStatusReadyToPlay)
newNetworkState = (maxTimeLoaded() == durationMediaTime()) ? MediaPlayer::Loaded : MediaPlayer::Loading;
}
}
if (isReadyForVideoSetup() && currentRenderingMode() != preferredRenderingMode())
setUpVideoRendering();
if (!m_haveReportedFirstVideoFrame && m_cachedHasVideo && hasAvailableVideoFrame()) {
if (m_readyState < MediaPlayer::HaveCurrentData)
newReadyState = MediaPlayer::HaveCurrentData;
m_haveReportedFirstVideoFrame = true;
m_player->firstVideoFrameAvailable();
}
#if !LOG_DISABLED
if (m_networkState != newNetworkState || m_readyState != newReadyState) {
LOG(Media, "MediaPlayerPrivateAVFoundation::updateStates(%p) - entered with networkState = %i, readyState = %i, exiting with networkState = %i, readyState = %i",
this, static_cast<int>(m_networkState), static_cast<int>(m_readyState), static_cast<int>(newNetworkState), static_cast<int>(newReadyState));
}
#endif
setNetworkState(newNetworkState);
setReadyState(newReadyState);
if (m_playWhenFramesAvailable && hasAvailableVideoFrame()) {
m_playWhenFramesAvailable = false;
platformPlay();
}
}
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) {
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));
}