1. A method of encoding video data in a packetized elementary stream (PES), the method comprising:
receiving a signal including frames of image data, wherein the frames include base layer and enhancement layer components;
encoding the frames of image data to form video access units (AUs), wherein base layer AUs are formed for base layer components and enhancement layers AUs are formed for enhancement layer components, each AU including:
an elementary stream header (ELSM) including image data metadata parameters associated with decoding and displaying the image data;
a PES header including a presentation time stamp (PTS) and a PES packet length indicating the length of the PES header;
one or more codestreams associated with a frame of the image data;
adding a network abstraction layer (NAL) unit header defined by an enhancement layer video standard to each base layer AU, the NAL unit header being a constant value and length; and
forming a modified PES header by increasing the PES packet length to include the length of the NAL unit header in it.
2. The method of claim 1, further comprising:
mapping the AUs into PES packets; and
ordering the PES packets to form a PES in a transport stream,
wherein the transport stream includes a base layer formed from base layer AUs and an enhancement layer formed from enhancement layer AUs.
3. The method of claim 1, wherein the base layer AUs comprise AVC or MPEG-2 video data.
4. The method of claim 1, wherein the enhancement layer AUs comprise HEVC or AVC video data.
5. The method of claim 1, wherein the base layer AUs are AVC video data and the NAL unit header is HEVC video data.
6. The method of claim 5, wherein a NAL unit header directly precedes each base layer AU.
7. The method of claim 5, wherein each HEVC NAL unit header is configured to signal and carry each AVC AU.
8. The method of claim 7, wherein each AVC AU includes at least one of: AU delimiter, SEI, SPS, PPS, and video slices.
9. The method of claim 5, further comprising:
mapping the AUs into PES packets; and
ordering the PES packets to form a PES in a transport stream, wherein the transport stream includes a base layer formed from base layer AUs and an enhancement layer formed from enhancement layer AUs,
wherein the transport stream includes at least two packet identifiers (PIDs) and a program map table (PMT), and
wherein the AVC base layer PES packets are carried in a first dedicated PID.
10. The method of claim 9, wherein the PMT signals the base layer AVC with MPEG defined stream type of 0x1B.
11. The method of claim 9, wherein the NAL unit header an HEVC enhancement layer and wherein the HEVC enhancement layer is carried in a second dedicated PID.
12. The method of claim 11, wherein the PMT signals the HVC enhancement layer with a new stream type value defined by MPEG.
13. The method of claim 1, wherein the base layer AUs are MPEG-2 video data and the NAL unit header is defined in AVC video data.
14. The method of claim 1, wherein the base layer AUs are MPEG-2 video data and the NAL unit header is defined in HEVC video data.
15. A method of decoding video data in a packetized elementary stream (PES), the method comprising:
receiving a transport stream including
the PES, wherein the PES includes frames on image data in video access units (AUs) including both base layer AUs and enhancement layer AUs, wherein base layer AUs are formed from base layer components and enhancement layer AUs are formed from enhancement layer components, each AU including:
an elementary stream header (ELSM) including image data metadata parameters associated with decoding and displaying the image data;
a network abstraction layer (NAL) unit header for each base layer AU;
a modified PES header including a presentation time stamp (PTS) and a PES packet length indicating the length of the PES header plus a constant value, wherein the constant value represents the length of the NAL unit header;
one or more codestreams associated with a frame of the image data;
removing the modified PES header and NAL unit for each base layer AU; and
decoding each base layer AU to form a signal including frames of image data.
16. The method of claim 15, wherein the decoding is performed by a legacy decoder.
17. A method of decoding video data in a packetized elementary stream (PES), the method comprising:
receiving a transport stream including
the PES, wherein the PES includes frames on image data in video access units (AUs) including both base layer AUs and enhancement layer AUs, wherein base layer AUs are formed from base layer components and enhancement layer AUs are formed from enhancement layer components, each AU including:
an elementary stream header (ELSM) including image data metadata parameters associated with decoding and displaying the image data;
a network abstraction layer (NAL) unit header for each base layer AU;
a modified PES header including a presentation time stamp (PTS) and a PES packet length indicating the length of the PES header plus a constant value, wherein the constant value represents the length of the NAL unit header;
one or more codestreams associated with a frame of the image data;
forming an original PES header by decreasing the modified PES packet length by the constant value that represents the NAL unit header length;
removing the original PES header for each base layer AU;
removing the original PES header for each enhancement layer AU; and
decoding each base layer AU and each enhancement layer AU to form a signal including frames of image data.
18. The method of claim 17, further comprising:
receiving a signal indicating that the modified PES header will be decremented by the constant value.
19. A system configured to encode video data in a packetized elementary stream (PES), the system comprising:
a processor configured to
receive a signal including frames of image data, wherein the frames include base layer and enhancement layer components;
encode the frames of image data to form video access units (AUs), wherein base layer AUs are formed for base layer components and enhancement layers AUs are formed for enhancement layer components, each AU including:
an elementary stream header (ELSM) including image data metadata parameters associated with decoding and displaying the image data;
a PES header including a presentation time stamp (PTS) and a PES packet length indicating the length of the PES header;
one or more codestreams associated with a frame of the image data;
add a network abstraction layer (NAL) unit header defined by an enhancement layer video standard to each base layer AU, the NAL unit header being a constant value and length;
form a modified PES header by increasing the PES packet length to include the length of the NAL unit header in it; and
a storage device configured to store
the frames of image data, and
executable instructions for controlling the processor.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Use of a compound of formula (I) or a stereoisomeric or polymorphic form thereof
for the preparation of a cosmetic or dermatological composition for the prophylaxis or treatment of skin itching or skin ageing.
2. Use according to claim 1, whereby a compound of formula (I) or a stereoisomeric or polymorphic form thereof and at least one cosmetically tolerable component are used for the preparation of a cosmetic composition.
3. Use according to claim 1, whereby a compound of formula (I) or a stereoisomeric or polymorphic form thereof and at least one dermatologically tolerable component are used for the preparation of a dermatological composition.
4. Use according to claim 1, whereby a compound of formula (I) or a stereoisomeric or polymorphic form thereof and at least one further cosmetically active ingredient are used for the preparation of a cosmetic composition.
5. Use according to claim 1, whereby a compound of formula (I) or a stereoisomeric or polymorphic form thereof is used for the preparation of a composition for the cosmetic treatment or cosmetic prophylaxis of skin itching or skin ageing caused by intrinsic or extrinsic factors.
6. Use according to claim 1, whereby a compound of formula (I) or a stereoisomeric or polymorphic form thereof is used for the preparation of a composition for the dermatological treatment, or dermatological prophylaxis of skin itching and skin ageing caused by intrinsic or extrinsic factors.
7. Use according to claim 1, whereby a compound of formula (I) or a stereoisomeric or polymorphic form thereof and at least one further dermatologically or pharmaceutically active ingredient are used for the preparation of a dermatological composition.
8. Use according to claim 1, whereby a compound of formula (I) or a stereoisomeric or polymorphic form thereof and at least one further pharmaceutically, dermatologically or cosmetically active ingredient are used for the preparation of a composition for cosmetic or dermatological treatment andor cosmetic or dermatological prophylaxis of skin itching or skin ageing caused by a combination of intrinsic and extrinsic factors.
9. Process for the preparation of a cosmetic composition by mixing a compound of formula (I) as described in claim 1 or a stereoisomeric or polymorphic form thereof, at least one cosmetically tolerable component and eventually further pharmaceutically, dermatologically or cosmetically active ingredients, wherein the composition includes from 0.01% to 20% by weight of at least one compound of formula (I) or a stereoisomeric or polymorphic form thereof, based on the total weight of the composition.
10. Process for the preparation of a dermatological composition by mixing a compound of formula (I) as described in claim 1 or a stereoisomeric or polymorphic form thereof, at least one dermatologically tolerable component and eventually further pharmaceutically, dermatologically or cosmetically active ingredients, wherein the composition includes from 0.01% to 20% by weight of at least one compound of formula (I) or a stereoisomeric or polymorphic form thereof, based on the total weight of the composition.