Provision of supplemental processing information

Patent metadata

Field	Value
Publication number	US-9609368-B2
Application number	US-201013502242-A
Country	US
Kind code	B2
Filing date	Oct 18, 2010
Priority date	Oct 20, 2009
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

Supplemental processing information ( 52, 54 ) defining post-decoding instructions for processing decoded media content is co-organized in a file ( 1 ) together with a pseudo-identifier of a media codec employed for encoding the media content. The co-organization trigger abortion of decoding of the media content by a legacy media terminal ( 210 ) that does not recognize the pseudo-identifier but enables decoding of the media content by a media terminal ( 200 ) that recognizes the pseudo-identifier to thereby enable post-decoding processing of the decoded media content using the supplemental processing information ( 52, 54 ). The co-organization thereby prevents legacy media terminals ( 210 ) that cannot use the supplemental processing information from decoding the media content and rendering the media content in a media presentation.

First claim

The invention claimed is:

1. A method of providing supplemental processing information relating to encoded media content, the method comprising:
providing a pseudo-identifier of a media codec employed for encoding the media content;
providing supplemental processing information defining post-decoding instructions for processing decoded media content obtainable by decoding the encoded media content;
co-organizing the pseudo-identifier and the supplemental processing information in a file to:
trigger abortion of decoding of the encoded media content by a legacy media terminal that does not recognize the pseudo-identifier; and
enable decoding of the encoded media content using the media codec and post-decoding processing of the decoded media content using the supplemental processing information by a media terminal that recognizes the pseudo-identifier.

2. The method of claim 1 wherein co-organizing the pseudo-identifier and the supplemental processing information comprises:
generating a media container file comprising at least one media track defining the media content and at least one media content box comprising the encoded media content;
providing, in the media container file, a sample entry box defining the pseudo-identifier;
providing, in the sample entry box, a supplemental processing information box comprising the supplemental processing information;
providing, in the sample entry box, a media format box comprising a codec identifier of the media codec.

3. The method of claim 2 :
wherein the media track comprises multiple sample entry boxes each being associated to a respective portion of the encoded media content contained in the at least one media content box;
wherein providing the supplemental processing information box comprises providing a supplemental processing information box defining post-decoding instructions applicable to a subsequent portion of the encoded media content in a sample entry box associated with a previous portion of the encoded media content, the sample entry box associated with the previous portion of encoded media content having a decoding time preceding a decoding time of the subsequent portion of the encoded media content.

4. The method of claim 1 wherein co-organizing the pseudo-identifier and the supplemental processing information comprises generating a session description protocol file comprising:
a first attribute line comprising the pseudo-identifier; and
a second attribute line comprising the supplemental processing information.

5. The method of claim 1 wherein providing the supplemental processing information comprises providing at least one of:
supplemental processing information representing mandatory post-decoding instructions for processing the decoded media content;
supplemental processing information representing optional post-decoding instructions for processing the decoded media content.

6. The method of claim 1 :
wherein the encoded media content comprises encoded video data;
wherein providing the supplemental processing information comprises providing supplemental processing information representing post-decoding instructions defining which video frames of the encoded video data that correspond to a left view and which video frames of the encoded video data that correspond to a right view for three dimensional rendering of the video data.

7. A device for providing supplemental processing information relating to encoded media content, the device comprising:
an identifier provider configured to provide a pseudo-identifier of a media codec employed for encoding the media content;
an information provider configured to provide supplemental processing information defining post-decoding instructions for processing decoded media content obtainable by decoding the encoded media content;
a file organizer configured to co-organize the pseudo-identifier provided by the identifier provider and the supplemental processing information provided by the information provider in a file to:
trigger abortion of decoding of the encoded media content by a legacy media terminal that does not recognize the pseudo-identifier; and
enable decoding of the encoded media content using the media codec and post-decoding processing of the decoded media content using the supplemental processing information by a media terminal that recognizes the pseudo-identifier.

8. The device of claim 7 wherein:
the file organizer is configured to generate a media container file comprising at least one media track defining the media content and at least one media content box comprising the encoded media content;
the identifier provider is configured to:
provide, in the media container file, a sample entry box defining the pseudo-identifier;
provide, in the sample entry box, a media format box comprising a codec identifier of the media codec;

the information provider is configured to provide, in the sample entry box, a supplemental processing information box comprising the supplemental processing information.

9. The device of claim 8 :
wherein the media track comprises multiple sample entry boxes each being associated to a respective portion of the encoded media content contained in the at least one media content box;
wherein the information provider is configured to provide a supplemental processing information box defining post-decoding instructions applicable to a subsequent portion of the encoded media content in a sample entry box associated with a previous portion of the encoded media content, the sample entry box associated with the previous portion of encoded media content having a decoding time preceding a decoding time of the subsequent portion of the encoded media content.

10. The device of claim 7 wherein the file organizer is configured to generate a session description protocol file comprising:
a first attribute line comprising the pseudo-identifier;
a second attribute line comprising the supplemental processing information.

11. The device of claim 7 wherein the information provider is configured to provide at least one of:
supplemental processing information representing mandatory post-decoding instructions for processing the decoded media content; and
supplemental processing information representing optional post-decoding instructions for processing the decoded media content.

12. The device of claim 7 wherein the device is a portion of a media server.

13. The device of claim 12 wherein the media server is a portion of a network node.

14. A method of processing a media content comprising:
receiving a file comprising a pseudo-identifier of a media codec employed for encoding the media content and supplemental processing information defining post-decoding instructions for processing the media content;
in response to the pseudo-identifier retrieved from the file being not recognizable, aborting decoding of an encoded version of the media content;
in response to the pseudo-identifier retrieved from the file being recognizable:
selecting a media codec for decoding the encoded media content based on a codec identifier of the media codec retrieved based on the pseudo-identifier;
decoding the encoded media content using the selected media codec; and
processing the decoded media content based on the supplemental processing information retrieved from the file to get the media content in a form suitable for rendering.

15. The method of claim 14 :
wherein receiving the file comprises receiving a media container file comprising at least one media track defining the media content, at least one media content box comprising the encoded version of th

Assignees

• Fröjdh Per
• Priddle Clinton
• Wu Zhuangfei
• ERICSSON TELEFON AB L M (publ)

Inventors

• Fröjdh Per
• Priddle Clinton
• Wu Zhuangfei

Classifications

• H04N21/2353 Primary

  specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata · CPC title

• H04N21/85406

  involving a specific file format, e.g. MP4 format · CPC title

• H04N19/597

  specially adapted for multi-view video sequence encoding · CPC title

• H04N19/85

  using pre-processing or post-processing specially adapted for video compression · CPC title

• H04N21/435

  Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream · CPC title