90   struct FileTypeDetectionBuffer *detect = &input_ctx->detect;  in read_yuv_frame()  local
124       const size_t left = detect->buf_read - detect->position;  in read_yuv_frame()
127         memcpy(ptr, detect->buf + detect->position, more);  in read_yuv_frame()
130         detect->position += more;  in read_yuv_frame()
580       input_ctx->detect.buf_read - input_ctx->detect.position;  in read_from_input()
585     memcpy(buf, input_ctx->detect.buf + input_ctx->detect.position, n);  in read_from_input()
586     input_ctx->detect.position += n;  in read_from_input()
589     memcpy(buf, input_ctx->detect.buf + input_ctx->detect.position,  in read_from_input()
591     input_ctx->detect.position += buffered_bytes;  in read_from_input()
600   if (n + input_ctx->detect.position > DETECT_BUF_SZ) {  in input_to_detect_buf()
601     die("Failed to store in the detect buffer, maximum size exceeded.");  in input_to_detect_buf()
604       input_ctx->detect.buf_read - input_ctx->detect.position;  in input_to_detect_buf()
607     read_n = fread(input_ctx->detect.buf + input_ctx->detect.buf_read, 1, n,  in input_to_detect_buf()
609     input_ctx->detect.buf_read += read_n;  in input_to_detect_buf()
612     // the detect buffer  in input_to_detect_buf()
615     read_n = fread(input_ctx->detect.buf + input_ctx->detect.buf_read, 1,  in input_to_detect_buf()
617     input_ctx->detect.buf_read += read_n;  in input_to_detect_buf()
623 // Read from detect buffer to a buffer. If not enough, read from input and also
638   input_ctx->detect.position = 0;  in rewind_detect()
643          input_ctx->detect.position == input_ctx->detect.buf_read;  in input_eof()