diff options
Diffstat (limited to 'extensions/TimedMediaHandler/handlers/WebMHandler')
-rw-r--r-- | extensions/TimedMediaHandler/handlers/WebMHandler/WebMHandler.php | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/extensions/TimedMediaHandler/handlers/WebMHandler/WebMHandler.php b/extensions/TimedMediaHandler/handlers/WebMHandler/WebMHandler.php new file mode 100644 index 00000000..ebdad0d1 --- /dev/null +++ b/extensions/TimedMediaHandler/handlers/WebMHandler/WebMHandler.php @@ -0,0 +1,175 @@ +<?php +/** + * WebM handler + */ +class WebMHandler extends ID3Handler { + + /** + * @param $path string + * @return array + */ + protected function getID3( $path ) { + $id3 = parent::getID3( $path ); + // Unset some parts of id3 that are too detailed and matroska specific: + unset( $id3['matroska'] ); + return $id3; + } + + /** + * Get the "media size" + * @param $file File + * @param $path string + * @param $metadata bool + * @return array|bool + */ + function getImageSize( $file, $path, $metadata = false ) { + // Just return the size of the first video stream + if ( $metadata === false ) { + $metadata = $file->getMetadata(); + } + $metadata = $this->unpackMetadata( $metadata ); + if ( isset( $metadata['error'] ) ) { + return false; + } + + $size = array( false, false ); + // display_x/display_y is only set if DisplayUnit + // is pixels, otherwise display_aspect_ratio is set + if ( isset( $metadata['video']['display_x'] ) + && + isset( $metadata['video']['display_y'] ) + ){ + $size = array ( + $metadata['video']['display_x'], + $metadata['video']['display_y'] + ); + } + elseif ( isset( $metadata['video']['resolution_x'] ) + && + isset( $metadata['video']['resolution_y'] ) + ){ + $size = array ( + $metadata['video']['resolution_x'], + $metadata['video']['resolution_y'] + ); + if ( isset($metadata['video']['crop_top']) ) { + $size[1] -= $metadata['video']['crop_top']; + } + if ( isset($metadata['video']['crop_bottom']) ) { + $size[1] -= $metadata['video']['crop_bottom']; + } + if ( isset($metadata['video']['crop_left']) ) { + $size[0] -= $metadata['video']['crop_left']; + } + if ( isset($metadata['video']['crop_right']) ) { + $size[0] -= $metadata['video']['crop_right']; + } + } + if ( $size[0] && $size[1] && isset( $metadata['video']['display_aspect_ratio'] ) ) { + //for wide images (i.e. 16:9) take native height as base + if ( $metadata['video']['display_aspect_ratio'] >= 1 ) { + $size[0] = intval( $size[1] * $metadata['video']['display_aspect_ratio'] ); + } else { //for tall images (i.e. 9:16) take width as base + $size[1] = intval( $size[0] / $metadata['video']['display_aspect_ratio'] ); + } + } + return $size; + } + + /** + * @param $file + * @return string + */ + function getMetadataType( $file ) { + return 'webm'; + } + + /** + * @param $file File + * @return String + */ + function getWebType( $file ) { + $baseType = ( $file->getWidth() == 0 && $file->getHeight() == 0 )? 'audio' : 'video'; + + $streams = $this->getStreamTypes( $file ); + if ( !$streams ) { + return $baseType . '/webm'; + } + + $codecs = strtolower( implode( ', ', $streams ) ); + + return $baseType . '/webm; codecs="' . $codecs . '"'; + } + + /** + * @param $file File + * @return array|bool + */ + function getStreamTypes( $file ) { + $streamTypes = array(); + $metadata = $this->unpackMetadata( $file->getMetadata() ); + if ( !$metadata || isset( $metadata['error'] ) ) { + return false; + } + // id3 gives 'V_VP8' for what we call VP8 + if( isset( $metadata['video'] ) && $metadata['video']['dataformat'] == 'vp8' ){ + $streamTypes[] = 'VP8'; + } elseif( isset( $metadata['video'] ) && + ( $metadata['video']['dataformat'] === 'vp9' + || $metadata['video']['dataformat'] === 'V_VP9' + ) ) { + // Currently getID3 calls it V_VP9. That will probably change to vp9 + // once getID3 actually gets support for the codec. + $streamTypes[] = 'VP9'; + } + if( isset( $metadata['audio'] ) && $metadata['audio']['dataformat'] == 'vorbis' ){ + $streamTypes[] = 'Vorbis'; + } elseif ( isset( $metadata['audio'] ) && + ( $metadata['audio']['dataformat'] == 'opus' + || $metadata['audio']['dataformat'] == 'A_OPUS' + ) ) { + // Currently getID3 calls it A_OPUS. That will probably change to 'opus' + // once getID3 actually gets support for the codec. + $streamTypes[] = 'Opus'; + } + + return $streamTypes; + } + + /** + * @param $file File + * @return String + */ + function getShortDesc( $file ) { + global $wgLang; + + $streamTypes = $this->getStreamTypes( $file ); + if ( !$streamTypes ) { + return parent::getShortDesc( $file ); + } + return wfMessage( 'timedmedia-webm-short-video', implode( '/', $streamTypes ), + $wgLang->formatTimePeriod( $this->getLength( $file ) ) )->text(); + } + + /** + * @param $file File + * @return String + */ + function getLongDesc( $file ) { + global $wgLang; + $streamTypes = $this->getStreamTypes( $file ); + if ( !$streamTypes ) { + return parent::getLongDesc( $file ); + } + return wfMessage('timedmedia-webm-long-video', + implode( '/', $streamTypes ), + $wgLang->formatTimePeriod( $this->getLength($file) ), + $wgLang->formatBitrate( $this->getBitRate( $file ) ) + )->numParams( + $file->getWidth(), + $file->getHeight() + )->text(); + + } + +} |