Sign data hiding of video recording
In a method of encoding a video sequence into a bitstream, an encoder determines, based on a value of a first encoded flag, whether to encode a second flag into the bitstream. The first flag indicates whether sign data hiding is turned off at a slice level for a video frame. The second flag indicates whether transform skip residual coding is turned off at the slice level for the video frame.
1. A method of encoding a video sequence into a bitstream, the method comprising:
receiving a video frame for residual coding;
encoding a first flag into a bitstream, the first flag indicating whether sign data hiding is turned off at a slice level for the video frame; and
determining, based on a value of the first flag, whether to skip encoding a second flag indicating whether transform skip residual coding is turned off at the slice level for the video frame.
2. The method of claim 1 , wherein the method is performed according to versatile video coding standard.
3. The method of claim 1 , wherein the first flag comprises a slice level flag of slice_sign_data_hiding_enabled_flag.
4. The method of claim 1 , wherein the second flag comprises a slice level flag of slice_ts_residual_coding_disabled_flag.
5. The method of claim 1 , further comprising:
in response to the value of the first flag indicating the sign data hiding is turned off at the slice level for the video frame, encoding the second flag into the bitstream.
6. The method of claim 1 , further comprising:
in response to the value of the first flag being equal to 0, encoding the second flag into the bitstream.
7. The method of claim 1 , further comprising:
in response to the value of the first flag being equal to 1, skipping encoding the second flag.
8. A method of decoding a bitstream to output one or more pictures for a video stream, the method comprising:
receiving a bitstream encoded based on residual coding, the bitstream comprising a first flag indicating whether sign data hiding is turned off at a slice level;
decoding the first flag; and
determining, based on a value of the first flag, whether to decode a second flag indicating whether transform skip residual coding is turned off at the slice level.
9. The method of claim 8 , wherein the first flag comprises a slice level flag of slice_sign_data_hiding_enabled_flag.
10. The method of claim 8 , wherein the second flag comprises a slice level flag of slice_ts_residual_coding_disabled_flag.
11. The method of claim 8 , further comprising:
in response to the value of the first flag indicating the sign data hiding is turned off at the slice level, decoding the second flag.
12. The method of claim 8 , further comprising:
in response to the value of the first flag being equal to 0, decoding the second flag.
13. The method of claim 8 , further comprising:
in response to the value of the first flag being equal to 1, skipping decoding the second flag and determining that the transform skip residual coding is turned on at the slice level.
14. The method of claim 8 , further comprising:
in response to the value of the first flag being equal to 1, skipping decoding the second flag and determining that a value of the second flag is equal to 0.
15. The method of claim 8 , wherein the method is performed according to versatile video coding standard.
16. A non-transitory computer readable storage medium storing a bitstream of a video, the bitstream comprising:
a first flag indicating whether sign data hiding is turned off at a slice level,
wherein when the first flag has a first value, the bitstream further comprises a second flag indicating whether transform skip residual coding is turned off at the slice level, and
wherein when the first flag has a second value, the bitstream further does not comprise the second flag.
17. The non-transitory computer readable storage medium of claim 16 , wherein the first flag comprises a slice level flag of slice_sign_data_hiding_enabled_flag.
18. The non-transitory computer readable storage medium of claim 16 , wherein the second flag comprises a slice level flag of slice_ts_residual_coding_disabled_flag.
19. The non-transitory computer readable storage medium of claim 16 , wherein the first value of the first flag indicates the sign data hiding is turned off at the slice level.
20. The non-transitory computer readable storage medium of claim 16 , wherein the first value of the first flag is equal to 0.
21. The non-transitory computer readable storage medium of claim 16 , wherein the second value of the first flag indicates the sign data hiding is turned on at the slice level.
22. The non-transitory computer readable storage medium of claim 16 , wherein the second value of the first flag is equal to 1.
23. The non-transitory computer readable storage medium of claim 16 , wherein the bitstream is encoded according to versatile video coding standard.