Method and device for determining the value of a delay to be applied between sending a first dataset and sending a second dataset
First Claim
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1. A method implemented by a device for determining a value of a delay to be applied between sending a first packet and sending a second packet from a sender device to a receiver device over a network, comprising:
- obtaining data corresponding respectively to the first and second packets, the packets containing the data corresponding to NAL (Network Abstract Layer) units, which data is representative of a sequence of coded images, the coded images being coded according to a first level of resolution and at least a second level of resolution higher than the first level of resolution and the NAL units containing data of a single level of resolution; and
determining the value of the delay to be applied between sending of the first and second packets, from the receiver device to the sender device over the network, the value of the delay being dependent on a number of decoded images that can be formed from the NAL units of the first packet, which NAL units contain data of the second level of resolution.
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Abstract
The invention relates to a method and to a device for determining the value of a delay to be applied between sending a first dataset and sending a second dataset, the data being representative of a sequence of coded images, the datasets consisting of data subsets, the coded images being coded according to a first level of resolution and at least a second level of resolution higher than the first level of resolution, the data subsets containing data of a first level of resolution. According to the invention:
- first and second datasets are obtained (E506); and
- the value of the delay is determined (E507), the value of the delay being dependent on the number of decoded images that can be formed from the data subsets of the first dataset which contain data of the second or of a second level of resolution.
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Citations
12 Claims
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1. A method implemented by a device for determining a value of a delay to be applied between sending a first packet and sending a second packet from a sender device to a receiver device over a network, comprising:
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obtaining data corresponding respectively to the first and second packets, the packets containing the data corresponding to NAL (Network Abstract Layer) units, which data is representative of a sequence of coded images, the coded images being coded according to a first level of resolution and at least a second level of resolution higher than the first level of resolution and the NAL units containing data of a single level of resolution; and determining the value of the delay to be applied between sending of the first and second packets, from the receiver device to the sender device over the network, the value of the delay being dependent on a number of decoded images that can be formed from the NAL units of the first packet, which NAL units contain data of the second level of resolution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for determining a value of a delay to be applied between sending a first packet and sending a second packet from a sender device to a receiver device over a network, comprising:
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a processor and a memory; obtaining means for obtaining data corresponding respectively to the first and second packets, the packets containing the data corresponding to NAL (Network Abstract Layer) units, which data is representative of a sequence of coded images, the coded images being coded according to a first level of resolution and at least a second level of resolution higher that the first level of resolution and the NAL units containing data of a single level of resolution; and determining means for determining the value of the delay to be applied between sending of the first and second packets, from the receiver device to the sender device over the network, the value of the delay being dependent on a number of decoded images that can be formed from the NAL units of the first packet, which contain data of the second level of resolution.
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11. A non-transitory computer-readable information medium storing a program, which, when it is loaded into and executed by a computer or a processor in a device, allows the device to implement a method for determining a value of a delay to be applied between sending a first packet and sending a second packet from a sender device to a receiver device over a network, the program comprising code to perform the steps of:
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obtaining data corresponding respectively to the first and second packets, the packets containing the data corresponding to NAL (Network Abstract Layer) units, which data is representative of a sequence of coded images, the coded images being coded according to a first level of resolution and at least a second level of resolution higher than the first level of resolution and the NAL units containing data of a single level of resolution; and determining the value of the delay to be applied between sending of the first and second packets, from the receiver device to the sender device over the network, the value of the delay being dependent on a number of decoded images that can be formed from the NAL units of the first packet, which NAL units contain data of the second level of resolution.
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12. A device for determining a value of a delay to be applied between sending a first packet and sending a second packet from a sender device to a receiver device over a network, comprising:
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a processor; and a memory storing code of a computer executable program that, when executed by the processor, causes the device to; obtain data corresponding respectively to the first and second packets, the packets containing the data corresponding to NAL (Network Abstract Layer) units, which data is representative of a sequence of coded images, the coded images being coded according to a first level of resolution and at least a second level of resolution higher than the first level of resolution and the NAL units containing data of a single level of resolution; and determine the value of the delay to be applied between sending the first and second packets, from the receiver device to the sender device over the network, the value of the delay being dependent on a number of decoded images that can be formed from the NAL units of the first packet which contain data of the second level of resolution.
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Specification