Digital video frequency broadcasting switching method and apparatus thereof
A technology of digital video broadcasting and conversion method, which is applied in the direction of TV, color TV, parts of color TV, etc., and can solve problems such as the inability to input transmission code streams, etc.
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[0027] see figure 1 , the concrete method of the present invention is as follows:
[0028] 1) Receive transport stream data;
[0029] 2) Preprocessing the transmission stream data;
[0030] 3) Adjust the bit rate of the preprocessed transport stream data so that it is lower than the highest rate of the audio serial interface format;
[0031] 4) Convert the transmission stream data into audio serial interface format data;
[0032] 4.1) Sort the transmission stream data according to the audio serial interface data sequence requirements to obtain the audio serial interface data DATA;
[0033] 4.2) Generate a clock BCK synchronized with the audio serial interface data DATA;
[0034] 4.3) Generate left and right channel switching signal LRCK to form audio serial interface format data.
[0035] 5) Output the audio serial interface format data from the audio serial interface.
[0036] The preprocessing process of the transport code stream data in step 2) includes the preprocess...
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