RESTRICTIONS ON SIGNALING
A method for constraining a bitstream is described. In one embodiment, when a source indicator obtained from a profile tier level syntax structure is not equal to a pre-determined value, a first indication is generated.
1 . A method for constraining a bitstream by an electronic device, comprising:
obtaining a message structure, wherein the message structure comprises a profile tier level syntax structure;
obtaining a source indicator from the profile tier level syntax structure;
determining whether the source indicator is equal to a pre-determined value;
and generating a first indication if the source indicator is not equal to a pre-determined value.
2 . The method of claim 1 , wherein the message structure is a Sequence Parameter Set.
3 . The method of claim 1 , wherein the message structure is a Video Parameter Set.
4 . The method of claim 1 , where the source indicator is a general progressive source flag.
5 . The method of claim 1 , wherein the source indicator is a general interlaced source flag.
6 . The method of claim 1 , wherein the source indicator is a general frame only constraint flag.