WHAT IS CLAIMED IS:
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`-25-
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`1.
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`A method performed by a decoding device, comprising:
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`receiving encoded data comprising a first portion that is encoded in accordance
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`with a first codec and a second portion that is encoded in accordance with a second codec,
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`decoding the first portion of the encoded data in accordance with the first codec to
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`obtain decoded data,
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`determining that the decoded data includes supplemental information that
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`indicates a transition point after which the encoded data transitions to the second portion;
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`and
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`decoding the second portion of the encoded data in accordance with the second
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`codec based on the supplemental information.
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`2.
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`The method of claim 1, wherein the encoded data comprises at least one of
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`encoded Video data or encoded audio data.
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`3.
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`The method of claim 1, wherein the first portion comprises one or more first
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`pictures that are encoded in accordance with the first codec and the second portion
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`comprises one or more second pictures that are encoded in accordance with the second
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`codec.
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`4.
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`The method of claim 3, wherein the supplemental information is located after a
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`last picture in a sequence of the one or more first pictures.
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`5.
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`The method of claim 3, wherein the supplemental information is located after a
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`picture before a last picture in a sequence of the one or more first pictures.
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`6.
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`The method of claim 5, wherein the supplemental information further indicates a
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`number of pictures of the one or more first pictures that are to be decoded before the
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`transition point.
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`BU35949 / A05.02530002
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`-26-
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`7.
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`The method of claim 1, wherein the supplemental information also indicates at
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`least one of:
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`the second codec to be used to decode the second portion of the encoded data,
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`one or more of a profile, level, and tier of the second portion of the encoded data,
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`or
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`a resolution of the second portion of the encoded data.
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`8.
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`The method of claim 1, wherein the supplemental information is a Supplemental
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`Enhancement Information message.
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`9.
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`The method of claim 1, wherein the supplemental information is User Data.
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`10.
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`A method performed by an encoding device, comprising:
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`inserting supplemental information in a first portion of data, the first portion to be
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`encoded in accordance with a first codec, the supplemental information indicating a
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`transition point after which a second portion of data is to be encoded in accordance with a
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`second codec, and
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`inserting a marker in the first portion of data, the marker corresponding to the
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`transition point.
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`11.
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`The method of claim 10, wherein the data is at least one of Video data or audio
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`data.
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`12.
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`The method of claim 10, wherein the first portion comprises one or more first
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`pictures that are to be encoded in accordance with the first codec and the second portion
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`comprises one or more second pictures that are to be encoded in accordance with the
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`second codec.
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`13.
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`The method of claim 12, wherein the supplemental information is inserted after a
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`last picture in a sequence of the one or more first pictures.
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`BU35949 / A05.02530002
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`-27-
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`14.
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`The method of claim 12, wherein the supplemental information is inserted after a
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`picture before a last picture in a sequence of the one or more first pictures.
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`15.
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`The method of claim 14, wherein the supplemental information further indicates a
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`number of pictures of the one or more first pictures that are to be decoded before the
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`marker.
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`16.
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`The method of claim 10, wherein the supplemental information also indicates at
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`least one of:
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`the second codec to be used to decode the second portion of the encoded data,
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`one or more of a profile, level, and tier of the second portion of the encoded data,
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`or
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`a resolution of the second portion of the encoded data.
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`17.
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`The method of claim 10, wherein the supplemental information is a Supplemental
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`Enhancement Information message.
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`18.
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`The method of claim 10, wherein the supplemental information is User Data.
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`19.
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`A method performed by a decoding device, comprising:
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`receiving, from a first source external to the decoding device, a first portion of
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`encoded data and a second portion of the encoded data, the first portion and the second
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`portion being encoded in accordance with a first codec,
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`decoding the first portion of the encoded data in accordance with the first codec to
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`obtain decoded data,
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`determining that the decoded data includes supplemental information that
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`indicates a transition point after which encoded data stored locally to the decoding device
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`is to be decoded instead of the second portion of the encoded data, the encoded data
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`stored locally to the decoded device being encoded in accordance with a second codec,
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`and
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`in response to reaching the transition point, decoding the encoded data stored
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`locally to the decoding device instead of the second portion of the encoded data, the
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`BU35949 / A05.02530002
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`-28-
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`encoded data stored locally to the decoding device being decoded in accordance with the
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`second codec based on the supplemental information.
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`20.
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`The method of claim 19, wherein the supplemental information is encoded into
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`the first portion of the encoded data by the decoding device.
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`BU35949 / A05.02530002
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