kopia lustrzana https://github.com/proto17/dji_droneid
Updated get_sample_count_of_file to use new function for num of bytes/sample
rodzic
3213764d68
commit
94ee1b3602
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@ -1,16 +1,25 @@
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% Get the number of complex 32-bit floating point values in the specified file
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% Get the number of complex values in the specified file using the provided sample type
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%
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%
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% @param file_path Path to the file that contains complex 32-bit floating point samples
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% @param file_path Path to the file that contains complex 32-bit floating point samples
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% @param sample_type MATLAB numeric class type for each I and Q value in the file. Ex: 'single', 'int16', 'int8', etc
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% @return sample_count Number of complex 32-bit floating point samples in the provided input file
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% @return sample_count Number of complex 32-bit floating point samples in the provided input file
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function [sample_count] = get_sample_count_of_file(file_path)
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function [sample_count] = get_sample_count_of_file(file_path, sample_type)
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handle = fopen(file_path, "r");
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handle = fopen(file_path, "r");
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if (handle == 0)
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if (handle == 0)
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error("Could not open input file '%s'"', file_path);
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error("Could not open input file '%s'"', file_path);
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end
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end
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% Get how many bytes are required to make a single I or Q value
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bytes_per_sample = get_bytes_per_sample(sample_type);
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% Move to the end of the file
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fseek(handle, 0, 'eof');
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fseek(handle, 0, 'eof');
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% Ask how many bytes into the file the pointer is currently
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byte_count = ftell(handle);
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byte_count = ftell(handle);
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fclose(handle);
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fclose(handle);
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sample_count = floor(byte_count / 4 / 2);
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% Get the number of complex samples in the file. Flooring to ensure that if there are bytes missing those are not
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% counted towards the total number of samples
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sample_count = floor(byte_count / bytes_per_sample / 2);
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end
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end
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