Video display preference filtering

A computer-implemented method comprising, at a decoder having a plurality of filters for filtering decoded video data, the filters arranged in a predetermined sequence where the output of each previous filter feeds into the input of each subsequent filter:

• decoding an frame of video data received via a channel;
• responsive to first metadata received in the channel that identifies which of the plurality of filters is to be applied during decoding of the frame of video data for outputting to a display:
• first filtering the decoded frame of video data by the identified filter(s) and
• storing the first filtered video data in a display buffer;
• and
• responsive to second metadata, separate from the first metadata, received in the channel that identifies which of the plurality of filters is to be applied during decoding of the frame of video data for generating reference pictures:
• second filtering the decoded frame of video data by the identified filter(s) and
• storing the second filtered video data in a reference picture buffer.

A computer-implemented method comprising, at a decoder having a plurality of filters for filtering decoded video data arranged in a predetermined sequence where the output of each previous filter feeds into the input of each subsequent filter:

• decoding reference frame of video data received via a channel;
• identifying, from first metadata received in the channel, a first filter within the plurality of filters that is to be applied during decoding of the reference frame of video data for use as a reference for decoding subsequent video data from the channel, the identified first filter varying for different received frames of video data using a processing device;
• saving a first output from the identified filter for the reference frame of received video data in a reference buffer storing reference data used during decoding;
• identifying, from second metadata, separate from the first metadata, received in the channel, a second filter within the plurality of filters that is to be applied during decoding of the reference frame of video data for use in displaying the decoded reference frame of video data, the filter varying for different received frames of video data using a processing device;
• saving a second output from the identified filter for the reference frame of received video data in a display buffer storing decoded video data to be displayed;
• outputting to a display the saved second output;
• and
• decoding subsequently received frames of video data using the saved first output as reference data.

A processor comprising:

• a plurality of sequential filters, where the output of each previous filter feeds into the input of each subsequent filter;
• a decision unit for:
• selecting, for a new frame of video data to be coded, which of the plurality of filters is to be applied during decoding of the new frame of video data before outputting the decoded new frame of video data to a display, and
• selecting, for the new frame of video data to be coded, which of the plurality of filters is to be applied during decoding of the new frame of video data for generating reference pictures,
• a processing device for coding the new frame of video data according to predictive coding techniques;
• and
• a transmitter for transmitting the coded new frame of video data along with metadata for the coded new frame of video data, the metadata including a first metadata representing the first filter selections for outputting to the display and a second metadata, separate from the first metadata, representing the second filter selections for generating the reference picture.

A processor comprising:

• a plurality of sequential filters, where the output of each previous filter feeds into the input of each subsequent filter;
• a decision unit for
• identifying, for an frame of video data to be decoded, a filter from the plurality of filters having a first output used as a reference for decoding subsequent items of video data in an encoded video stream from a first metadata included in the encoded video stream, the identified filter varying for different frames of video data in the stream;
• and
• identifying, for the frame of video data to be decoded, a filter from the plurality of filters having a second output for outputting video data to a display and being identified from a second metadata, separate from the first metadata, included in the encoded video stream;
• a reference buffer for storing reference data;
• a processing device for routing the first output to the reference buffer and routing the second output to a display;
• and
• a decoder for decoding the subsequent items of video data based on the reference data stored in the reference buffer.

A computer-implemented method comprising, at a decoder having a plurality of filters arranged in a predetermined sequence:

• decoding a reference frame of video data received via a channel;
• selecting, based on first metadata received in the channel, a first filter within the plurality of filters that is to be applied during decoding of the reference frame for use as a reference for decoding subsequent video data from the channel;
• saving a first output from the first filter in a reference buffer storing reference data used during decoding;
• selecting, based on second metadata, separate from the first metadata, received in the channel, a second filter within the plurality of filters that is to be applied during decoding of the reference frame for use in displaying the decoded reference frame;
• saving a second output from the second filter in a display buffer storing decoded video data to be displayed;
• outputting the saved second output to a display;
• and
• decoding subsequently received video data using the saved first output as reference data.