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Presentation Descriptor Attributes

Common Presentation Descriptor Attributes

The following attributes can apply to any presentation descriptor.

AttributeDescription
MF_PD_APP_CONTEXT Contains a pointer to the presentation descriptor from the protected media path (PMP).
MF_PD_AUDIO_ENCODING_BITRATE Specifies the audio encoding bit rate for the presentation, in bits per second.
MF_PD_AUDIO_ISVARIABLEBITRATE Specifies whether the audio streams in the presentation have a variable bit rate.
MF_PD_DURATION Specifies the duration of a presentation, in 100-nanosecond units.
MF_PD_LAST_MODIFIED_TIME Specifies when a presentation was last modified.
MF_PD_MIME_TYPE Specifies the MIME type of the content.
MF_PD_PLAYBACK_BOUNDARY_TIME The time at which the presentation must begin, relative to the start of the media source.
MF_PD_PLAYBACK_ELEMENT_ID The identifier of the playlist element in the presentation.
MF_PD_PMPHOST_CONTEXT Contains a pointer to the proxy object for the application's presentation descriptor.
MF_PD_PREFERRED_LANGUAGE Contains the preferred RFC 1766 language of the media source.
MF_PD_SAMI_STYLELIST Contains the friendly name of the supported Synchronized Accessible Media Interchange (SAMI) styles. This attribute applies only to SAMI files.
MF_PD_TOTAL_FILE_SIZE Specifies the total size of the source file, in bytes.
MF_PD_VIDEO_ENCODING_BITRATE Specifies the video encoding bit rate for the presentation, in bits per second.

 

Presentation Descriptor Attributes for ASF

The following attributes apply to presentation descriptors for Advanced Systems Format (ASF) files.

AttributeDescription
MF_PD_ASF_CODECLIST Contains information about the codecs used to encode the content in an ASF file.
MF_PD_ASF_CONTENTENCRYPTION_KEYID Specifies the key identifier for an encrypted ASF file.
MF_PD_ASF_CONTENTENCRYPTION_LICENSE_URL Specifies the license acquisition URL for an encrypted ASF file.
MF_PD_ASF_CONTENTENCRYPTION_SECRET_DATA Contains secret data for an encrypted ASF file.
MF_PD_ASF_CONTENTENCRYPTION_TYPE Specifies the type of protection mechanism used in an ASF file.
MF_PD_ASF_CONTENTENCRYPTIONEX_ENCRYPTION_DATA Contains encryption data for an ASF file.
MF_PD_ASF_DATA_LENGTH Specifies the size, in bytes, of the data section of an ASF file.
MF_PD_ASF_DATA_START_OFFSET Specifies the offset, in bytes, from the start of an ASF file to the start of the first data packet.
MF_PD_ASF_FILEPROPERTIES_CREATION_TIME Specifies the date and time when an ASF file was initially created.
MF_PD_ASF_FILEPROPERTIES_FILE_ID Specifies the file identifier of an ASF file.
MF_PD_ASF_FILEPROPERTIES_FLAGS Contains miscellaneous flags from an ASF header.
MF_PD_ASF_FILEPROPERTIES_MAX_BITRATE Specifies the maximum instantaneous bit rate, in bits per second, for an ASF file.
MF_PD_ASF_FILEPROPERTIES_MAX_PACKET_SIZE Specifies the maximum packet size, in bytes, for an ASF file
MF_PD_ASF_FILEPROPERTIES_MIN_PACKET_SIZE Specifies the minimum packet size, in bytes, for an ASF file.
MF_PD_ASF_FILEPROPERTIES_PACKETS Specifies the number of packets in the data section of an ASF file.
MF_PD_ASF_FILEPROPERTIES_PLAY_DURATION Specifies the time needed to play an ASF file, in 100-nanosecond units.
MF_PD_ASF_FILEPROPERTIES_PREROLL Specifies the amount of time to buffer data before starting to play an ASF file, in milliseconds.
MF_PD_ASF_FILEPROPERTIES_SEND_DURATION Specifies the time needed to send an ASF file, in 100-nanosecond units.
MF_PD_ASF_INFO_HAS_AUDIO Specifies whether an ASF file contains at least one audio stream.
MF_PD_ASF_INFO_HAS_NON_AUDIO_VIDEO Specifies whether an ASF file contains any non-audio, non-video streams.
MF_PD_ASF_INFO_HAS_VIDEO Specifies whether an ASF file contains at least one video stream.
MF_PD_ASF_LANGLIST Specifies the list of languages used in an ASF file.
MF_PD_ASF_LANGLIST_LEGACYORDER Contains a list of RFC 1766 languages used in the current presentation.
MF_PD_ASF_MARKER Specifies the markers in an ASF file.
MF_PD_ASF_METADATA_IS_VBR Specifies whether an ASF file uses variable bit rate (VBR) encoding.
MF_PD_ASF_METADATA_LEAKY_BUCKET_PAIRS Describes the buffering requirements for a VBR ASF file.
MF_PD_ASF_METADATA_V8_BUFFERAVERAGE Specifies the average buffer size needed for a VBR ASF file.
MF_PD_ASF_METADATA_V8_VBRPEAK Specifies the highest momentary bit rate in a VBR ASF file.
MF_PD_ASF_SCRIPT Specifies the script commands in an ASF file.

 

Related topics

Media Foundation Attributes
Presentation Descriptors
IMFPresentationDescriptor

 

 

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