Transmission Apparatus Dynamic Stream Adaptation
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Solution Overview
Problem
Current systems lack the ability to determine and optimize decoding processing for encoded streams with degree-of-priority information, leading to inefficient transmission and decoding of data between devices with varying decoding abilities.
Innovation Solution
A transmission apparatus and method that acquires an encoded stream, determines the decoding ability of the reception side, and decides whether to transmit the encoded or decoded stream via a digital interface, such as HDMI, based on the comparison of decoding abilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transmitter transmits encoded stream to receiver, then transmission efficiency is improved, but the receiver must have sufficient decoding ability which limits device compatibility
Solution Approach 1:
The system dynamically adjusts the transmission format (encoded vs decoded stream) based on the real-time decoding ability information received from the receiver. The transmitter changes its operation mode according to the receiver's capabilities, making the system adaptable rather than static.
Solution Approach 2:
The transmitter changes the parameter of the transmitted stream (encoded or decoded) based on the decoding ability parameter received from the receiver. When the receiver has high decoding ability, encoded streams are transmitted; when decoding ability is low, decoded streams are transmitted.
2Productivity
If the transmitter determines decoding ability before transmission, then optimal decoding processing is achieved, but the system complexity increases due to ability determination and comparison processes
Solution Approach 1:
The system performs preliminary determination of the receiver's decoding ability before the actual transmission of audio data. The transmitter receives decoding ability information from the receiver in advance and makes transmission decisions based on this pre-acquired information, avoiding the need for complex real-time adjustments during transmission.
Solution Approach 2:
Decoding ability information acts as an intermediary that bridges the transmitter and receiver. This information mediates the transmission process by enabling the transmitter to automatically adapt to the receiver's capabilities without requiring complex direct analysis or multiple trial transmissions.
3Adaptability or versatility
If decoded stream is transmitted to receiver with low decoding ability, then compatibility is improved, but transmission data volume increases and efficiency decreases
Solution Approach 1:
The transmission format is dynamically adjusted based on the receiver's decoding ability. The system transitions between transmitting encoded streams (for high-ability receivers) and decoded streams (for low-ability receivers), optimizing both compatibility and efficiency for each specific case.
Data Source
AI summary
To make it possible to apply optimal decoding processing to an encoded stream including a plurality of pieces of encoded data having degree-of-priority information. An encoded stream including a plurality of pieces of encoded data having degree-of-priority information is acquired. Whether or not a decoding ability of a reception side is equal to or greater than a decoding ability of the own side is determined on the basis of decoding ability information of the reception side indicating to what number of degree of priority decoding can be performed. In a case where the decoding ability of the reception side is equal to or greater than the decoding ability of the own side, an encoded stream is transmitted. On the contrary, in a case where the decoding ability of the reception side is less than the decoding ability of the own side, a decoded stream including decoded data generated by subjecting the encoded stream to decoding processing is transmitted.